diff options
Diffstat (limited to 'src/protocol/reqrep0')
| -rw-r--r-- | src/protocol/reqrep0/CMakeLists.txt | 25 | ||||
| -rw-r--r-- | src/protocol/reqrep0/rep.c | 705 | ||||
| -rw-r--r-- | src/protocol/reqrep0/rep_test.c | 669 | ||||
| -rw-r--r-- | src/protocol/reqrep0/req.c | 869 | ||||
| -rw-r--r-- | src/protocol/reqrep0/req_test.c | 968 | ||||
| -rw-r--r-- | src/protocol/reqrep0/xrep.c | 432 | ||||
| -rw-r--r-- | src/protocol/reqrep0/xrep_test.c | 434 | ||||
| -rw-r--r-- | src/protocol/reqrep0/xreq.c | 319 | ||||
| -rw-r--r-- | src/protocol/reqrep0/xreq_test.c | 367 |
9 files changed, 0 insertions, 4788 deletions
diff --git a/src/protocol/reqrep0/CMakeLists.txt b/src/protocol/reqrep0/CMakeLists.txt deleted file mode 100644 index a3cecfd0..00000000 --- a/src/protocol/reqrep0/CMakeLists.txt +++ /dev/null @@ -1,25 +0,0 @@ -# -# Copyright 2020 Staysail Systems, Inc. <info@staysail.tech> -# Copyright 2018 Capitar IT Group BV <info@capitar.com> -# -# This software is supplied under the terms of the MIT License, a -# copy of which should be located in the distribution where this -# file was obtained (LICENSE.txt). A copy of the license may also be -# found online at https://opensource.org/licenses/MIT. -# - -# Req/Rep protocol -nng_directory(reqrep0) - -nng_sources_if(NNG_PROTO_REQ0 req.c xreq.c) -nng_headers_if(NNG_PROTO_REQ0 nng/protocol/reqrep0/req.h) -nng_defines_if(NNG_PROTO_REQ0 NNG_HAVE_REQ0) - -nng_sources_if(NNG_PROTO_REP0 rep.c xrep.c) -nng_headers_if(NNG_PROTO_REP0 nng/protocol/reqrep0/rep.h) -nng_defines_if(NNG_PROTO_REP0 NNG_HAVE_REP0) - -nng_test(req_test) -nng_test(rep_test) -nng_test(xrep_test) -nng_test(xreq_test) diff --git a/src/protocol/reqrep0/rep.c b/src/protocol/reqrep0/rep.c deleted file mode 100644 index aa32d249..00000000 --- a/src/protocol/reqrep0/rep.c +++ /dev/null @@ -1,705 +0,0 @@ -// -// Copyright 2020 Staysail Systems, Inc. <info@staysail.tech> -// Copyright 2018 Capitar IT Group BV <info@capitar.com> -// -// This software is supplied under the terms of the MIT License, a -// copy of which should be located in the distribution where this -// file was obtained (LICENSE.txt). A copy of the license may also be -// found online at https://opensource.org/licenses/MIT. -// - -#include <string.h> - -#include "core/nng_impl.h" -#include "nng/protocol/reqrep0/rep.h" - -// Response protocol. The REP protocol is the "reply" side of a -// request-reply pair. This is useful for building RPC servers, for -// example. - -typedef struct rep0_pipe rep0_pipe; -typedef struct rep0_sock rep0_sock; -typedef struct rep0_ctx rep0_ctx; - -static void rep0_pipe_send_cb(void *); -static void rep0_pipe_recv_cb(void *); -static void rep0_pipe_fini(void *); - -struct rep0_ctx { - rep0_sock * sock; - uint32_t pipe_id; - rep0_pipe * spipe; // send pipe - nni_aio * saio; // send aio - nni_aio * raio; // recv aio - nni_list_node sqnode; - nni_list_node rqnode; - size_t btrace_len; - uint32_t btrace[NNI_MAX_MAX_TTL + 1]; -}; - -// rep0_sock is our per-socket protocol private structure. -struct rep0_sock { - nni_mtx lk; - nni_atomic_int ttl; - nni_id_map pipes; - nni_list recvpipes; // list of pipes with data to receive - nni_list recvq; - rep0_ctx ctx; - nni_pollable readable; - nni_pollable writable; -}; - -// rep0_pipe is our per-pipe protocol private structure. -struct rep0_pipe { - nni_pipe * pipe; - rep0_sock * rep; - uint32_t id; - nni_aio aio_send; - nni_aio aio_recv; - nni_list_node rnode; // receivable list linkage - nni_list sendq; // contexts waiting to send - bool busy; - bool closed; -}; - -static void -rep0_ctx_close(void *arg) -{ - rep0_ctx * ctx = arg; - rep0_sock *s = ctx->sock; - nni_aio * aio; - - nni_mtx_lock(&s->lk); - if ((aio = ctx->saio) != NULL) { - rep0_pipe *pipe = ctx->spipe; - ctx->saio = NULL; - ctx->spipe = NULL; - nni_list_remove(&pipe->sendq, ctx); - nni_aio_finish_error(aio, NNG_ECLOSED); - } - if ((aio = ctx->raio) != NULL) { - nni_list_remove(&s->recvq, ctx); - ctx->raio = NULL; - nni_aio_finish_error(aio, NNG_ECLOSED); - } - nni_mtx_unlock(&s->lk); -} - -static void -rep0_ctx_fini(void *arg) -{ - rep0_ctx *ctx = arg; - - rep0_ctx_close(ctx); -} - -static int -rep0_ctx_init(void *carg, void *sarg) -{ - rep0_sock *s = sarg; - rep0_ctx * ctx = carg; - - NNI_LIST_NODE_INIT(&ctx->sqnode); - NNI_LIST_NODE_INIT(&ctx->rqnode); - ctx->btrace_len = 0; - ctx->sock = s; - ctx->pipe_id = 0; - - return (0); -} - -static void -rep0_ctx_cancel_send(nni_aio *aio, void *arg, int rv) -{ - rep0_ctx * ctx = arg; - rep0_sock *s = ctx->sock; - - nni_mtx_lock(&s->lk); - if (ctx->saio != aio) { - nni_mtx_unlock(&s->lk); - return; - } - nni_list_node_remove(&ctx->sqnode); - ctx->saio = NULL; - nni_mtx_unlock(&s->lk); - - nni_msg_header_clear(nni_aio_get_msg(aio)); // reset the headers - nni_aio_finish_error(aio, rv); -} - -static void -rep0_ctx_send(void *arg, nni_aio *aio) -{ - rep0_ctx * ctx = arg; - rep0_sock *s = ctx->sock; - rep0_pipe *p; - nni_msg * msg; - int rv; - size_t len; - uint32_t p_id; // pipe id - - msg = nni_aio_get_msg(aio); - nni_msg_header_clear(msg); - - if (nni_aio_begin(aio) != 0) { - return; - } - - nni_mtx_lock(&s->lk); - len = ctx->btrace_len; - p_id = ctx->pipe_id; - - // Assert "completion" of the previous req request. This ensures - // exactly one send for one receive ordering. - ctx->btrace_len = 0; - ctx->pipe_id = 0; - - if (ctx == &s->ctx) { - // No matter how this goes, we will no longer be able - // to send on the socket (root context). That's because - // we will have finished (successfully or otherwise) the - // reply for the single request we got. - nni_pollable_clear(&s->writable); - } - if (len == 0) { - nni_mtx_unlock(&s->lk); - nni_aio_finish_error(aio, NNG_ESTATE); - return; - } - if ((rv = nni_msg_header_append(msg, ctx->btrace, len)) != 0) { - nni_mtx_unlock(&s->lk); - nni_aio_finish_error(aio, rv); - return; - } - if ((p = nni_id_get(&s->pipes, p_id)) == NULL) { - // Pipe is gone. Make this look like a good send to avoid - // disrupting the state machine. We don't care if the peer - // lost interest in our reply. - nni_mtx_unlock(&s->lk); - nni_aio_set_msg(aio, NULL); - nni_aio_finish(aio, 0, nni_msg_len(msg)); - nni_msg_free(msg); - return; - } - if (!p->busy) { - p->busy = true; - len = nni_msg_len(msg); - nni_aio_set_msg(&p->aio_send, msg); - nni_pipe_send(p->pipe, &p->aio_send); - nni_mtx_unlock(&s->lk); - - nni_aio_set_msg(aio, NULL); - nni_aio_finish(aio, 0, len); - return; - } - - if ((rv = nni_aio_schedule(aio, rep0_ctx_cancel_send, ctx)) != 0) { - nni_mtx_unlock(&s->lk); - nni_aio_finish_error(aio, rv); - return; - } - - ctx->saio = aio; - ctx->spipe = p; - nni_list_append(&p->sendq, ctx); - nni_mtx_unlock(&s->lk); -} - -static void -rep0_sock_fini(void *arg) -{ - rep0_sock *s = arg; - - nni_id_map_fini(&s->pipes); - rep0_ctx_fini(&s->ctx); - nni_pollable_fini(&s->writable); - nni_pollable_fini(&s->readable); - nni_mtx_fini(&s->lk); -} - -static int -rep0_sock_init(void *arg, nni_sock *sock) -{ - rep0_sock *s = arg; - - NNI_ARG_UNUSED(sock); - - nni_mtx_init(&s->lk); - nni_id_map_init(&s->pipes, 0, 0, false); - NNI_LIST_INIT(&s->recvq, rep0_ctx, rqnode); - NNI_LIST_INIT(&s->recvpipes, rep0_pipe, rnode); - nni_atomic_init(&s->ttl); - nni_atomic_set(&s->ttl, 8); - - (void) rep0_ctx_init(&s->ctx, s); - - // We start off without being either readable or writable. - // Readability comes when there is something on the socket. - nni_pollable_init(&s->writable); - nni_pollable_init(&s->readable); - - return (0); -} - -static void -rep0_sock_open(void *arg) -{ - NNI_ARG_UNUSED(arg); -} - -static void -rep0_sock_close(void *arg) -{ - rep0_sock *s = arg; - - rep0_ctx_close(&s->ctx); -} - -static void -rep0_pipe_stop(void *arg) -{ - rep0_pipe *p = arg; - - nni_aio_stop(&p->aio_send); - nni_aio_stop(&p->aio_recv); -} - -static void -rep0_pipe_fini(void *arg) -{ - rep0_pipe *p = arg; - nng_msg * msg; - - if ((msg = nni_aio_get_msg(&p->aio_recv)) != NULL) { - nni_aio_set_msg(&p->aio_recv, NULL); - nni_msg_free(msg); - } - - nni_aio_fini(&p->aio_send); - nni_aio_fini(&p->aio_recv); -} - -static int -rep0_pipe_init(void *arg, nni_pipe *pipe, void *s) -{ - rep0_pipe *p = arg; - - nni_aio_init(&p->aio_send, rep0_pipe_send_cb, p); - nni_aio_init(&p->aio_recv, rep0_pipe_recv_cb, p); - - NNI_LIST_INIT(&p->sendq, rep0_ctx, sqnode); - - p->id = nni_pipe_id(pipe); - p->pipe = pipe; - p->rep = s; - return (0); -} - -static int -rep0_pipe_start(void *arg) -{ - rep0_pipe *p = arg; - rep0_sock *s = p->rep; - int rv; - - if (nni_pipe_peer(p->pipe) != NNG_REP0_PEER) { - // Peer protocol mismatch. - return (NNG_EPROTO); - } - - nni_mtx_lock(&s->lk); - rv = nni_id_set(&s->pipes, nni_pipe_id(p->pipe), p); - nni_mtx_unlock(&s->lk); - if (rv != 0) { - return (rv); - } - // By definition, we have not received a request yet on this pipe, - // so it cannot cause us to become writable. - nni_pipe_recv(p->pipe, &p->aio_recv); - return (0); -} - -static void -rep0_pipe_close(void *arg) -{ - rep0_pipe *p = arg; - rep0_sock *s = p->rep; - rep0_ctx * ctx; - - nni_aio_close(&p->aio_send); - nni_aio_close(&p->aio_recv); - - nni_mtx_lock(&s->lk); - p->closed = true; - if (nni_list_active(&s->recvpipes, p)) { - // We are no longer "receivable". - nni_list_remove(&s->recvpipes, p); - } - while ((ctx = nni_list_first(&p->sendq)) != NULL) { - nni_aio *aio; - nni_msg *msg; - // Pipe was closed. To avoid pushing an error back to the - // entire socket, we pretend we completed this successfully. - nni_list_remove(&p->sendq, ctx); - aio = ctx->saio; - ctx->saio = NULL; - msg = nni_aio_get_msg(aio); - nni_aio_set_msg(aio, NULL); - nni_aio_finish(aio, 0, nni_msg_len(msg)); - nni_msg_free(msg); - } - if (p->id == s->ctx.pipe_id) { - // We "can" send. (Well, not really, but we will happily - // accept a message and discard it.) - nni_pollable_raise(&s->writable); - } - nni_id_remove(&s->pipes, nni_pipe_id(p->pipe)); - nni_mtx_unlock(&s->lk); -} - -static void -rep0_pipe_send_cb(void *arg) -{ - rep0_pipe *p = arg; - rep0_sock *s = p->rep; - rep0_ctx * ctx; - nni_aio * aio; - nni_msg * msg; - size_t len; - - if (nni_aio_result(&p->aio_send) != 0) { - nni_msg_free(nni_aio_get_msg(&p->aio_send)); - nni_aio_set_msg(&p->aio_send, NULL); - nni_pipe_close(p->pipe); - return; - } - nni_mtx_lock(&s->lk); - p->busy = false; - if ((ctx = nni_list_first(&p->sendq)) == NULL) { - // Nothing else to send. - if (p->id == s->ctx.pipe_id) { - // Mark us ready for the other side to send! - nni_pollable_raise(&s->writable); - } - nni_mtx_unlock(&s->lk); - return; - } - - nni_list_remove(&p->sendq, ctx); - aio = ctx->saio; - ctx->saio = NULL; - ctx->spipe = NULL; - p->busy = true; - msg = nni_aio_get_msg(aio); - len = nni_msg_len(msg); - nni_aio_set_msg(aio, NULL); - nni_aio_set_msg(&p->aio_send, msg); - nni_pipe_send(p->pipe, &p->aio_send); - - nni_mtx_unlock(&s->lk); - - nni_aio_finish_sync(aio, 0, len); -} - -static void -rep0_cancel_recv(nni_aio *aio, void *arg, int rv) -{ - rep0_ctx * ctx = arg; - rep0_sock *s = ctx->sock; - - nni_mtx_lock(&s->lk); - if (ctx->raio == aio) { - nni_list_remove(&s->recvq, ctx); - ctx->raio = NULL; - nni_aio_finish_error(aio, rv); - } - nni_mtx_unlock(&s->lk); -} - -static void -rep0_ctx_recv(void *arg, nni_aio *aio) -{ - rep0_ctx * ctx = arg; - rep0_sock *s = ctx->sock; - rep0_pipe *p; - size_t len; - nni_msg * msg; - - if (nni_aio_begin(aio) != 0) { - return; - } - nni_mtx_lock(&s->lk); - if ((p = nni_list_first(&s->recvpipes)) == NULL) { - int rv; - if ((rv = nni_aio_schedule(aio, rep0_cancel_recv, ctx)) != 0) { - nni_mtx_unlock(&s->lk); - nni_aio_finish_error(aio, rv); - return; - } - if (ctx->raio != NULL) { - // Cannot have a second receive operation pending. - // This could be ESTATE, or we could cancel the first - // with ECANCELED. We elect the former. - nni_mtx_unlock(&s->lk); - nni_aio_finish_error(aio, NNG_ESTATE); - return; - } - ctx->raio = aio; - nni_list_append(&s->recvq, ctx); - nni_mtx_unlock(&s->lk); - return; - } - msg = nni_aio_get_msg(&p->aio_recv); - nni_aio_set_msg(&p->aio_recv, NULL); - nni_list_remove(&s->recvpipes, p); - if (nni_list_empty(&s->recvpipes)) { - nni_pollable_clear(&s->readable); - } - nni_pipe_recv(p->pipe, &p->aio_recv); - if ((ctx == &s->ctx) && !p->busy) { - nni_pollable_raise(&s->writable); - } - - len = nni_msg_header_len(msg); - memcpy(ctx->btrace, nni_msg_header(msg), len); - ctx->btrace_len = len; - ctx->pipe_id = nni_pipe_id(p->pipe); - nni_mtx_unlock(&s->lk); - - nni_msg_header_clear(msg); - nni_aio_set_msg(aio, msg); - nni_aio_finish(aio, 0, nni_msg_len(msg)); -} - -static void -rep0_pipe_recv_cb(void *arg) -{ - rep0_pipe *p = arg; - rep0_sock *s = p->rep; - rep0_ctx * ctx; - nni_msg * msg; - uint8_t * body; - nni_aio * aio; - size_t len; - int hops; - int ttl; - - if (nni_aio_result(&p->aio_recv) != 0) { - nni_pipe_close(p->pipe); - return; - } - - msg = nni_aio_get_msg(&p->aio_recv); - ttl = nni_atomic_get(&s->ttl); - - nni_msg_set_pipe(msg, p->id); - - // Move backtrace from body to header - hops = 1; - for (;;) { - bool end; - - if (hops > ttl) { - // This isn't malformed, but it has gone - // through too many hops. Do not disconnect, - // because we can legitimately receive messages - // with too many hops from devices, etc. - goto drop; - } - hops++; - if (nni_msg_len(msg) < 4) { - // Peer is speaking garbage. Kick it. - nni_msg_free(msg); - nni_aio_set_msg(&p->aio_recv, NULL); - nni_pipe_close(p->pipe); - return; - } - body = nni_msg_body(msg); - end = ((body[0] & 0x80u) != 0); - if (nni_msg_header_append(msg, body, 4) != 0) { - // Out of memory, so drop it. - goto drop; - } - nni_msg_trim(msg, 4); - if (end) { - break; - } - } - - len = nni_msg_header_len(msg); - - nni_mtx_lock(&s->lk); - - if (p->closed) { - // If we are closed, then we can't return data. - nni_aio_set_msg(&p->aio_recv, NULL); - nni_mtx_unlock(&s->lk); - nni_msg_free(msg); - return; - } - - if ((ctx = nni_list_first(&s->recvq)) == NULL) { - // No one waiting to receive yet, holding pattern. - nni_list_append(&s->recvpipes, p); - nni_pollable_raise(&s->readable); - nni_mtx_unlock(&s->lk); - return; - } - - nni_list_remove(&s->recvq, ctx); - aio = ctx->raio; - ctx->raio = NULL; - nni_aio_set_msg(&p->aio_recv, NULL); - if ((ctx == &s->ctx) && !p->busy) { - nni_pollable_raise(&s->writable); - } - - // schedule another receive - nni_pipe_recv(p->pipe, &p->aio_recv); - - ctx->btrace_len = len; - memcpy(ctx->btrace, nni_msg_header(msg), len); - nni_msg_header_clear(msg); - ctx->pipe_id = p->id; - - nni_mtx_unlock(&s->lk); - - nni_aio_set_msg(aio, msg); - nni_aio_finish_sync(aio, 0, nni_msg_len(msg)); - return; - -drop: - nni_msg_free(msg); - nni_aio_set_msg(&p->aio_recv, NULL); - nni_pipe_recv(p->pipe, &p->aio_recv); -} - -static int -rep0_sock_set_max_ttl(void *arg, const void *buf, size_t sz, nni_opt_type t) -{ - rep0_sock *s = arg; - int ttl; - int rv; - - if ((rv = nni_copyin_int(&ttl, buf, sz, 1, NNI_MAX_MAX_TTL, t)) == 0) { - nni_atomic_set(&s->ttl, ttl); - } - return (rv); -} - -static int -rep0_sock_get_max_ttl(void *arg, void *buf, size_t *szp, nni_opt_type t) -{ - rep0_sock *s = arg; - - return (nni_copyout_int(nni_atomic_get(&s->ttl), buf, szp, t)); -} - -static int -rep0_sock_get_sendfd(void *arg, void *buf, size_t *szp, nni_opt_type t) -{ - rep0_sock *s = arg; - int rv; - int fd; - - if ((rv = nni_pollable_getfd(&s->writable, &fd)) != 0) { - return (rv); - } - return (nni_copyout_int(fd, buf, szp, t)); -} - -static int -rep0_sock_get_recvfd(void *arg, void *buf, size_t *szp, nni_opt_type t) -{ - rep0_sock *s = arg; - int rv; - int fd; - - if ((rv = nni_pollable_getfd(&s->readable, &fd)) != 0) { - return (rv); - } - - return (nni_copyout_int(fd, buf, szp, t)); -} - -static void -rep0_sock_send(void *arg, nni_aio *aio) -{ - rep0_sock *s = arg; - - rep0_ctx_send(&s->ctx, aio); -} - -static void -rep0_sock_recv(void *arg, nni_aio *aio) -{ - rep0_sock *s = arg; - - rep0_ctx_recv(&s->ctx, aio); -} - -// This is the global protocol structure -- our linkage to the core. -// This should be the only global non-static symbol in this file. -static nni_proto_pipe_ops rep0_pipe_ops = { - .pipe_size = sizeof(rep0_pipe), - .pipe_init = rep0_pipe_init, - .pipe_fini = rep0_pipe_fini, - .pipe_start = rep0_pipe_start, - .pipe_close = rep0_pipe_close, - .pipe_stop = rep0_pipe_stop, -}; - -static nni_proto_ctx_ops rep0_ctx_ops = { - .ctx_size = sizeof(rep0_ctx), - .ctx_init = rep0_ctx_init, - .ctx_fini = rep0_ctx_fini, - .ctx_send = rep0_ctx_send, - .ctx_recv = rep0_ctx_recv, -}; - -static nni_option rep0_sock_options[] = { - { - .o_name = NNG_OPT_MAXTTL, - .o_get = rep0_sock_get_max_ttl, - .o_set = rep0_sock_set_max_ttl, - }, - { - .o_name = NNG_OPT_RECVFD, - .o_get = rep0_sock_get_recvfd, - }, - { - .o_name = NNG_OPT_SENDFD, - .o_get = rep0_sock_get_sendfd, - }, - // terminate list - { - .o_name = NULL, - }, -}; - -static nni_proto_sock_ops rep0_sock_ops = { - .sock_size = sizeof(rep0_sock), - .sock_init = rep0_sock_init, - .sock_fini = rep0_sock_fini, - .sock_open = rep0_sock_open, - .sock_close = rep0_sock_close, - .sock_options = rep0_sock_options, - .sock_send = rep0_sock_send, - .sock_recv = rep0_sock_recv, -}; - -static nni_proto rep0_proto = { - .proto_version = NNI_PROTOCOL_VERSION, - .proto_self = { NNG_REP0_SELF, NNG_REP0_SELF_NAME }, - .proto_peer = { NNG_REP0_PEER, NNG_REP0_PEER_NAME }, - .proto_flags = NNI_PROTO_FLAG_SNDRCV, - .proto_sock_ops = &rep0_sock_ops, - .proto_pipe_ops = &rep0_pipe_ops, - .proto_ctx_ops = &rep0_ctx_ops, -}; - -int -nng_rep0_open(nng_socket *sidp) -{ - return (nni_proto_open(sidp, &rep0_proto)); -} diff --git a/src/protocol/reqrep0/rep_test.c b/src/protocol/reqrep0/rep_test.c deleted file mode 100644 index 5a47e67a..00000000 --- a/src/protocol/reqrep0/rep_test.c +++ /dev/null @@ -1,669 +0,0 @@ -// -// Copyright 2020 Staysail Systems, Inc. <info@staysail.tech> -// -// This software is supplied under the terms of the MIT License, a -// copy of which should be located in the distribution where this -// file was obtained (LICENSE.txt). A copy of the license may also be -// found online at https://opensource.org/licenses/MIT. -// - -#include <nuts.h> - -static void -test_rep_identity(void) -{ - nng_socket s; - int p1, p2; - char * n1; - char * n2; - - NUTS_PASS(nng_rep0_open(&s)); - NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PROTO, &p1)); - NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PEER, &p2)); - NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PROTONAME, &n1)); - NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PEERNAME, &n2)); - NUTS_CLOSE(s); - NUTS_TRUE(p1 == NNG_REP0_SELF); - NUTS_TRUE(p2 == NNG_REP0_PEER); - NUTS_MATCH(n1, NNG_REP0_SELF_NAME); - NUTS_MATCH(n2, NNG_REP0_PEER_NAME); - nng_strfree(n1); - nng_strfree(n2); -} - -void -test_rep_send_bad_state(void) -{ - nng_socket rep; - nng_msg * msg = NULL; - - NUTS_TRUE(nng_rep0_open(&rep) == 0); - NUTS_TRUE(nng_msg_alloc(&msg, 0) == 0); - NUTS_TRUE(nng_sendmsg(rep, msg, 0) == NNG_ESTATE); - nng_msg_free(msg); - NUTS_CLOSE(rep); -} - -void -test_rep_poll_writeable(void) -{ - int fd; - nng_socket req; - nng_socket rep; - - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_rep0_open(&rep)); - NUTS_PASS(nng_socket_get_int(rep, NNG_OPT_SENDFD, &fd)); - NUTS_TRUE(fd >= 0); - - // Not writable before connect. - NUTS_TRUE(nuts_poll_fd(fd) == false); - - NUTS_MARRY(req, rep); - - // Still not writable. - NUTS_TRUE(nuts_poll_fd(fd) == false); - - // If we get a job, *then* we become writable - NUTS_SEND(req, "abc"); - NUTS_RECV(rep, "abc"); - NUTS_TRUE(nuts_poll_fd(fd) == true); - - // And is no longer writable once we send a message - NUTS_SEND(rep, "def"); - NUTS_TRUE(nuts_poll_fd(fd) == false); - // Even after receiving it - NUTS_RECV(req, "def"); - NUTS_TRUE(nuts_poll_fd(fd) == false); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -void -test_rep_poll_readable(void) -{ - int fd; - nng_socket req; - nng_socket rep; - nng_msg * msg; - - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_rep0_open(&rep)); - NUTS_PASS(nng_socket_get_int(rep, NNG_OPT_RECVFD, &fd)); - NUTS_TRUE(fd >= 0); - - // Not readable if not connected! - NUTS_TRUE(nuts_poll_fd(fd) == false); - - // Even after connect (no message yet) - NUTS_MARRY(req, rep); - NUTS_TRUE(nuts_poll_fd(fd) == false); - - // But once we send messages, it is. - // We have to send a request, in order to send a reply. - NUTS_SEND(req, "abc"); - NUTS_SLEEP(100); - - NUTS_TRUE(nuts_poll_fd(fd) == true); - - // and receiving makes it no longer ready - NUTS_PASS(nng_recvmsg(rep, &msg, 0)); - nng_msg_free(msg); - NUTS_TRUE(nuts_poll_fd(fd) == false); - - // TODO verify unsolicited response - - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -void -test_rep_context_no_poll(void) -{ - int fd; - nng_socket req; - nng_ctx ctx; - - NUTS_PASS(nng_rep0_open(&req)); - NUTS_PASS(nng_ctx_open(&ctx, req)); - NUTS_FAIL(nng_ctx_get_int(ctx, NNG_OPT_SENDFD, &fd), NNG_ENOTSUP); - NUTS_FAIL(nng_ctx_get_int(ctx, NNG_OPT_RECVFD, &fd), NNG_ENOTSUP); - NUTS_PASS(nng_ctx_close(ctx)); - NUTS_CLOSE(req); -} - -void -test_rep_validate_peer(void) -{ - nng_socket s1, s2; - nng_stat * stats; - nng_stat * reject; - char * addr; - - NUTS_ADDR(addr, "inproc"); - NUTS_PASS(nng_rep0_open(&s1)); - NUTS_PASS(nng_rep0_open(&s2)); - - NUTS_PASS(nng_listen(s1, addr, NULL, 0)); - NUTS_PASS(nng_dial(s2, addr, NULL, NNG_FLAG_NONBLOCK)); - - NUTS_SLEEP(100); - NUTS_PASS(nng_stats_get(&stats)); - - NUTS_TRUE(stats != NULL); - NUTS_TRUE((reject = nng_stat_find_socket(stats, s1)) != NULL); - NUTS_TRUE((reject = nng_stat_find(reject, "reject")) != NULL); - - NUTS_TRUE(nng_stat_type(reject) == NNG_STAT_COUNTER); - NUTS_TRUE(nng_stat_value(reject) > 0); - - NUTS_CLOSE(s1); - NUTS_CLOSE(s2); - nng_stats_free(stats); -} - -void -test_rep_double_recv(void) -{ - nng_socket s1; - nng_aio * aio1; - nng_aio * aio2; - - NUTS_PASS(nng_rep0_open(&s1)); - NUTS_PASS(nng_aio_alloc(&aio1, NULL, NULL)); - NUTS_PASS(nng_aio_alloc(&aio2, NULL, NULL)); - - nng_recv_aio(s1, aio1); - nng_recv_aio(s1, aio2); - - nng_aio_wait(aio2); - NUTS_FAIL(nng_aio_result(aio2), NNG_ESTATE); - NUTS_CLOSE(s1); - NUTS_FAIL(nng_aio_result(aio1), NNG_ECLOSED); - nng_aio_free(aio1); - nng_aio_free(aio2); -} - -void -test_rep_close_pipe_before_send(void) -{ - nng_socket rep; - nng_socket req; - nng_pipe p; - nng_aio * aio1; - nng_msg * m; - - NUTS_PASS(nng_rep0_open(&rep)); - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_aio_alloc(&aio1, NULL, NULL)); - - NUTS_MARRY(req, rep); - NUTS_SEND(req, "test"); - - nng_recv_aio(rep, aio1); - nng_aio_wait(aio1); - NUTS_PASS(nng_aio_result(aio1)); - NUTS_TRUE((m = nng_aio_get_msg(aio1)) != NULL); - p = nng_msg_get_pipe(m); - NUTS_PASS(nng_pipe_close(p)); - NUTS_PASS(nng_sendmsg(rep, m, 0)); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep); - nng_aio_free(aio1); -} - -void -test_rep_close_pipe_during_send(void) -{ - nng_socket rep; - nng_socket req; - nng_pipe p = NNG_PIPE_INITIALIZER; - nng_msg * m; - - NUTS_PASS(nng_rep0_open(&rep)); - NUTS_PASS(nng_req0_open_raw(&req)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 200)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_int(rep, NNG_OPT_SENDBUF, 20)); - NUTS_PASS(nng_socket_set_int(rep, NNG_OPT_RECVBUF, 20)); - NUTS_PASS(nng_socket_set_int(req, NNG_OPT_SENDBUF, 20)); - NUTS_PASS(nng_socket_set_int(req, NNG_OPT_RECVBUF, 1)); - - NUTS_MARRY(req, rep); - - for (int i = 0; i < 100; i++) { - int rv; - NUTS_PASS(nng_msg_alloc(&m, 4)); - NUTS_PASS(nng_msg_append_u32(m, (unsigned) i | 0x80000000u)); - NUTS_PASS(nng_sendmsg(req, m, 0)); - NUTS_PASS(nng_recvmsg(rep, &m, 0)); - p = nng_msg_get_pipe(m); - rv = nng_sendmsg(rep, m, 0); - if (rv == NNG_ETIMEDOUT) { - // Queue is backed up, senders are busy. - nng_msg_free(m); - break; - } - NUTS_PASS(rv); - } - NUTS_PASS(nng_pipe_close(p)); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -void -test_rep_ctx_recv_aio_stopped(void) -{ - nng_socket rep; - nng_ctx ctx; - nng_aio * aio; - - NUTS_PASS(nng_rep0_open(&rep)); - NUTS_PASS(nng_aio_alloc(&aio, NULL, NULL)); - NUTS_PASS(nng_ctx_open(&ctx, rep)); - - nng_aio_stop(aio); - nng_ctx_recv(ctx, aio); - nng_aio_wait(aio); - NUTS_FAIL(nng_aio_result(aio), NNG_ECANCELED); - NUTS_PASS(nng_ctx_close(ctx)); - NUTS_CLOSE(rep); - nng_aio_free(aio); -} - -void -test_rep_close_pipe_context_send(void) -{ - nng_socket rep; - nng_socket req; - nng_pipe p = NNG_PIPE_INITIALIZER; - nng_msg * m; - nng_ctx ctx[100]; - nng_aio * aio[100]; - int i; - - NUTS_PASS(nng_rep0_open(&rep)); - NUTS_PASS(nng_req0_open_raw(&req)); - for (i = 0; i < 100; i++) { - NUTS_PASS(nng_ctx_open(&ctx[i], rep)); - NUTS_PASS(nng_aio_alloc(&aio[i], NULL, NULL)); - } - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_int(rep, NNG_OPT_SENDBUF, 1)); - NUTS_PASS(nng_socket_set_int(rep, NNG_OPT_RECVBUF, 1)); - NUTS_PASS(nng_socket_set_int(req, NNG_OPT_SENDBUF, 1)); - NUTS_PASS(nng_socket_set_int(req, NNG_OPT_RECVBUF, 1)); - - NUTS_MARRY(req, rep); - - for (i = 0; i < 100; i++) { - NUTS_PASS(nng_msg_alloc(&m, 4)); - NUTS_PASS(nng_msg_append_u32(m, (unsigned) i | 0x80000000u)); - NUTS_PASS(nng_sendmsg(req, m, 0)); - nng_ctx_recv(ctx[i], aio[i]); - } - for (i = 0; i < 100; i++) { - nng_aio_wait(aio[i]); - NUTS_PASS(nng_aio_result(aio[i])); - NUTS_TRUE((m = nng_aio_get_msg(aio[i])) != NULL); - p = nng_msg_get_pipe(m); - nng_aio_set_msg(aio[i], m); - nng_ctx_send(ctx[i], aio[i]); - } - - // Note that REQ socket is not reading the results. - NUTS_PASS(nng_pipe_close(p)); - - for (i = 0; i < 100; i++) { - int rv; - nng_aio_wait(aio[i]); - rv = nng_aio_result(aio[i]); - if (rv != 0) { - NUTS_FAIL(rv, NNG_ECLOSED); - nng_msg_free(nng_aio_get_msg(aio[i])); - } - nng_aio_free(aio[i]); - NUTS_PASS(nng_ctx_close(ctx[i])); - } - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -void -test_rep_close_context_send(void) -{ - nng_socket rep; - nng_socket req; - nng_msg * m; - nng_ctx ctx[100]; - nng_aio * aio[100]; - int i; - - NUTS_PASS(nng_rep0_open(&rep)); - NUTS_PASS(nng_req0_open_raw(&req)); - for (i = 0; i < 100; i++) { - NUTS_PASS(nng_ctx_open(&ctx[i], rep)); - NUTS_PASS(nng_aio_alloc(&aio[i], NULL, NULL)); - } - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_int(rep, NNG_OPT_SENDBUF, 1)); - NUTS_PASS(nng_socket_set_int(rep, NNG_OPT_RECVBUF, 1)); - NUTS_PASS(nng_socket_set_int(req, NNG_OPT_SENDBUF, 1)); - NUTS_PASS(nng_socket_set_int(req, NNG_OPT_RECVBUF, 1)); - - NUTS_MARRY(req, rep); - - for (i = 0; i < 100; i++) { - NUTS_PASS(nng_msg_alloc(&m, 4)); - NUTS_PASS(nng_msg_append_u32(m, (unsigned) i | 0x80000000u)); - NUTS_PASS(nng_sendmsg(req, m, 0)); - nng_ctx_recv(ctx[i], aio[i]); - } - for (i = 0; i < 100; i++) { - nng_aio_wait(aio[i]); - NUTS_PASS(nng_aio_result(aio[i])); - NUTS_TRUE((m = nng_aio_get_msg(aio[i])) != NULL); - nng_aio_set_msg(aio[i], m); - nng_ctx_send(ctx[i], aio[i]); - } - - // Note that REQ socket is not reading the results. - for (i = 0; i < 100; i++) { - int rv; - NUTS_PASS(nng_ctx_close(ctx[i])); - nng_aio_wait(aio[i]); - rv = nng_aio_result(aio[i]); - if (rv != 0) { - NUTS_FAIL(rv, NNG_ECLOSED); - nng_msg_free(nng_aio_get_msg(aio[i])); - } - nng_aio_free(aio[i]); - } - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -void -test_rep_close_recv(void) -{ - nng_socket rep; - nng_socket req; - nng_aio * aio; - - NUTS_PASS(nng_rep0_open(&rep)); - NUTS_PASS(nng_req0_open_raw(&req)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - - NUTS_MARRY(req, rep); - NUTS_PASS(nng_aio_alloc(&aio, NULL, NULL)); - nng_recv_aio(rep, aio); - NUTS_CLOSE(rep); - NUTS_CLOSE(req); - nng_aio_wait(aio); - NUTS_FAIL(nng_aio_result(aio), NNG_ECLOSED); - nng_aio_free(aio); -} - -struct rep_close_recv_cb_state { - nng_aio *aio; - nng_mtx *mtx; - nng_cv * cv; - int done; - int result; - nng_msg *msg; -}; - -static void -rep_close_recv_cb(void *arg) -{ - struct rep_close_recv_cb_state *state = arg; - - nng_mtx_lock(state->mtx); - state->result = nng_aio_result(state->aio); - state->msg = nng_aio_get_msg(state->aio); - state->done = true; - nng_cv_wake(state->cv); - nng_mtx_unlock(state->mtx); -} - -void -test_rep_close_recv_cb(void) -{ - nng_socket rep; - nng_socket req; - struct rep_close_recv_cb_state state; - - memset(&state, 0, sizeof(state)); - NUTS_PASS(nng_mtx_alloc(&state.mtx)); - NUTS_PASS(nng_cv_alloc(&state.cv, state.mtx)); - - NUTS_PASS(nng_rep0_open(&rep)); - NUTS_PASS(nng_req0_open_raw(&req)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - - NUTS_MARRY(req, rep); - NUTS_PASS(nng_aio_alloc(&state.aio, rep_close_recv_cb, &state)); - nng_recv_aio(rep, state.aio); - NUTS_CLOSE(rep); - NUTS_CLOSE(req); - nng_mtx_lock(state.mtx); - while (!state.done) { - NUTS_PASS(nng_cv_until(state.cv, nng_clock() + 1000)); - } - nng_mtx_unlock(state.mtx); - NUTS_TRUE(state.done != 0); - NUTS_FAIL(nng_aio_result(state.aio), NNG_ECLOSED); - NUTS_TRUE(nng_aio_get_msg(state.aio) == NULL); - nng_aio_free(state.aio); - nng_cv_free(state.cv); - nng_mtx_free(state.mtx); -} - -static void -test_rep_ctx_recv_nonblock(void) -{ - nng_socket rep; - nng_ctx ctx; - nng_aio * aio; - - NUTS_PASS(nng_rep0_open(&rep)); - NUTS_PASS(nng_ctx_open(&ctx, rep)); - NUTS_PASS(nng_aio_alloc(&aio, NULL, NULL)); - - nng_aio_set_timeout(aio, 0); // Instant timeout - nng_ctx_recv(ctx, aio); - - nng_aio_wait(aio); - NUTS_FAIL(nng_aio_result(aio), NNG_ETIMEDOUT); - NUTS_CLOSE(rep); - nng_aio_free(aio); -} - -static void -test_rep_ctx_send_nonblock(void) -{ - nng_socket rep; - nng_socket req; - nng_ctx ctx; - nng_aio * aio; - nng_msg * msg; - - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_rep0_open(&rep)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, 2000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_ctx_open(&ctx, rep)); - NUTS_PASS(nng_aio_alloc(&aio, NULL, NULL)); - NUTS_MARRY(req, rep); - - NUTS_SEND(req, "SEND"); - nng_ctx_recv(ctx, aio); - nng_aio_wait(aio); - NUTS_PASS(nng_aio_result(aio)); - // message carries over - msg = nng_aio_get_msg(aio); - nng_aio_set_msg(aio, msg); - nng_aio_set_timeout(aio, 0); // Instant timeout - nng_ctx_send(ctx, aio); - - nng_aio_wait(aio); - NUTS_PASS(nng_aio_result(aio)); - NUTS_CLOSE(rep); - NUTS_CLOSE(req); - nng_aio_free(aio); -} - -static void -test_rep_ctx_send_nonblock2(void) -{ - nng_socket rep; - nng_socket req; - nng_ctx rep_ctx[10]; - nng_aio * rep_aio[10]; - int num_good = 0; - int num_fail = 0; - - // We are going to send a bunch of requests, receive them, - // but then see that non-block pressure exerts for some, but - // that at least one non-blocking send works. - NUTS_PASS(nng_req0_open_raw(&req)); - NUTS_PASS(nng_rep0_open(&rep)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 1000)); - for (int i = 0; i < 10; i++) { - NUTS_PASS(nng_ctx_open(&rep_ctx[i], rep)); - NUTS_PASS(nng_aio_alloc(&rep_aio[i], NULL, NULL)); - } - NUTS_MARRY(req, rep); - - for (int i = 0; i < 10; i++) { - nng_msg *msg; - NUTS_PASS(nng_msg_alloc(&msg, 4)); - NUTS_PASS(nng_msg_append_u32(msg, (unsigned) i | 0x80000000u)); - nng_ctx_recv(rep_ctx[i], rep_aio[i]); - NUTS_PASS(nng_sendmsg(req, msg, 0)); - } - for (int i = 0; i < 10; i++) { - nng_msg *msg; - nng_aio_wait(rep_aio[i]); - NUTS_PASS(nng_aio_result(rep_aio[i])); - msg = nng_aio_get_msg(rep_aio[i]); - nng_aio_set_timeout(rep_aio[i], 0); - nng_aio_set_msg(rep_aio[i], msg); - nng_ctx_send(rep_ctx[i], rep_aio[i]); - } - - for (int i = 0; i < 10; i++) { - int rv; - nng_aio_wait(rep_aio[i]); - rv = nng_aio_result(rep_aio[i]); - if (rv == 0) { - num_good++; - } else { - NUTS_FAIL(rv, NNG_ETIMEDOUT); - nng_msg_free(nng_aio_get_msg(rep_aio[i])); - num_fail++; - } - } - - TEST_ASSERT(num_good > 0); - TEST_ASSERT(num_fail > 0); - - for (int i = 0; i < 10; i++) { - nng_aio_free(rep_aio[i]); - nng_ctx_close(rep_ctx[i]); - } - NUTS_CLOSE(rep); - NUTS_CLOSE(req); -} - -static void -test_rep_send_nonblock(void) -{ - nng_socket rep; - nng_socket req; - int rv; - - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_rep0_open(&rep)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 1000)); - NUTS_MARRY(req, rep); - - NUTS_SEND(req, "SEND"); - NUTS_RECV(rep, "SEND"); - - // Use the nonblock flag - rv = nng_send(rep, "RECV", 5, NNG_FLAG_NONBLOCK); - - NUTS_PASS(rv); - NUTS_RECV(req, "RECV"); - NUTS_CLOSE(rep); - NUTS_CLOSE(req); -} - -void -test_rep_recv_garbage(void) -{ - nng_socket rep; - nng_socket req; - nng_msg * m; - - NUTS_PASS(nng_rep0_open(&rep)); - NUTS_PASS(nng_req0_open_raw(&req)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, 200)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 200)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - - NUTS_MARRY(req, rep); - - NUTS_PASS(nng_msg_alloc(&m, 4)); - NUTS_PASS(nng_msg_append_u32(m, 1u)); - NUTS_PASS(nng_sendmsg(req, m, 0)); - NUTS_FAIL(nng_recvmsg(rep, &m, 0), NNG_ETIMEDOUT); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -NUTS_TESTS = { - { "rep identity", test_rep_identity }, - { "rep send bad state", test_rep_send_bad_state }, - { "rep poll readable", test_rep_poll_readable }, - { "rep poll writable", test_rep_poll_writeable }, - { "rep context does not poll", test_rep_context_no_poll }, - { "rep validate peer", test_rep_validate_peer }, - { "rep double recv", test_rep_double_recv }, - { "rep send nonblock", test_rep_send_nonblock }, - { "rep close pipe before send", test_rep_close_pipe_before_send }, - { "rep close pipe during send", test_rep_close_pipe_during_send }, - { "rep recv aio ctx stopped", test_rep_ctx_recv_aio_stopped }, - { "rep close pipe context send", test_rep_close_pipe_context_send }, - { "rep close context send", test_rep_close_context_send }, - { "rep close recv", test_rep_close_recv }, - { "rep close recv cb", test_rep_close_recv_cb }, - { "rep context send nonblock", test_rep_ctx_send_nonblock }, - { "rep context send nonblock 2", test_rep_ctx_send_nonblock2 }, - { "rep context recv nonblock", test_rep_ctx_recv_nonblock }, - { "rep recv garbage", test_rep_recv_garbage }, - { NULL, NULL }, -}; diff --git a/src/protocol/reqrep0/req.c b/src/protocol/reqrep0/req.c deleted file mode 100644 index cb3c9395..00000000 --- a/src/protocol/reqrep0/req.c +++ /dev/null @@ -1,869 +0,0 @@ -// -// Copyright 2020 Staysail Systems, Inc. <info@staysail.tech> -// Copyright 2018 Capitar IT Group BV <info@capitar.com> -// -// This software is supplied under the terms of the MIT License, a -// copy of which should be located in the distribution where this -// file was obtained (LICENSE.txt). A copy of the license may also be -// found online at https://opensource.org/licenses/MIT. -// -#include <stdio.h> - -#include "core/nng_impl.h" -#include "nng/protocol/reqrep0/req.h" - -// Request protocol. The REQ protocol is the "request" side of a -// request-reply pair. This is useful for building RPC clients, for example. - -typedef struct req0_pipe req0_pipe; -typedef struct req0_sock req0_sock; -typedef struct req0_ctx req0_ctx; - -static void req0_run_send_queue(req0_sock *, nni_list *); -static void req0_ctx_reset(req0_ctx *); -static void req0_ctx_timeout(void *); -static void req0_pipe_fini(void *); -static void req0_ctx_fini(void *); -static int req0_ctx_init(void *, void *); - -// A req0_ctx is a "context" for the request. It uses most of the -// socket, but keeps track of its own outstanding replays, the request ID, -// and so forth. -struct req0_ctx { - req0_sock * sock; - nni_list_node sock_node; // node on the socket context list - nni_list_node send_node; // node on the send_queue - nni_list_node pipe_node; // node on the pipe list - uint32_t request_id; // request ID, without high bit set - nni_aio * recv_aio; // user aio waiting to recv - only one! - nni_aio * send_aio; // user aio waiting to send - nng_msg * req_msg; // request message (owned by protocol) - size_t req_len; // length of request message (for stats) - nng_msg * rep_msg; // reply message - nni_timer_node timer; - nni_duration retry; - bool conn_reset; // sent message w/o retry, peer disconnect -}; - -// A req0_sock is our per-socket protocol private structure. -struct req0_sock { - nni_duration retry; - bool closed; - nni_atomic_int ttl; - req0_ctx master; // base socket master - nni_list ready_pipes; - nni_list busy_pipes; - nni_list stop_pipes; - nni_list contexts; - nni_list send_queue; // contexts waiting to send. - nni_id_map requests; // contexts by request ID - nni_pollable readable; - nni_pollable writable; - nni_mtx mtx; -}; - -// A req0_pipe is our per-pipe protocol private structure. -struct req0_pipe { - nni_pipe * pipe; - req0_sock * req; - nni_list_node node; - nni_list contexts; // contexts with pending traffic - bool closed; - nni_aio aio_send; - nni_aio aio_recv; -}; - -static void req0_sock_fini(void *); -static void req0_send_cb(void *); -static void req0_recv_cb(void *); - -static int -req0_sock_init(void *arg, nni_sock *sock) -{ - req0_sock *s = arg; - - NNI_ARG_UNUSED(sock); - - // Request IDs are 32 bits, with the high order bit set. - // We start at a random point, to minimize likelihood of - // accidental collision across restarts. - nni_id_map_init(&s->requests, 0x80000000u, 0xffffffffu, true); - - nni_mtx_init(&s->mtx); - - NNI_LIST_INIT(&s->ready_pipes, req0_pipe, node); - NNI_LIST_INIT(&s->busy_pipes, req0_pipe, node); - NNI_LIST_INIT(&s->stop_pipes, req0_pipe, node); - NNI_LIST_INIT(&s->send_queue, req0_ctx, send_node); - NNI_LIST_INIT(&s->contexts, req0_ctx, sock_node); - - // this is "semi random" start for request IDs. - s->retry = NNI_SECOND * 60; - - (void) req0_ctx_init(&s->master, s); - - nni_pollable_init(&s->writable); - nni_pollable_init(&s->readable); - - nni_atomic_init(&s->ttl); - nni_atomic_set(&s->ttl, 8); - return (0); -} - -static void -req0_sock_open(void *arg) -{ - NNI_ARG_UNUSED(arg); -} - -static void -req0_sock_close(void *arg) -{ - req0_sock *s = arg; - - nni_mtx_lock(&s->mtx); - s->closed = true; - nni_mtx_unlock(&s->mtx); -} - -static void -req0_sock_fini(void *arg) -{ - req0_sock *s = arg; - - nni_mtx_lock(&s->mtx); - NNI_ASSERT(nni_list_empty(&s->busy_pipes)); - NNI_ASSERT(nni_list_empty(&s->stop_pipes)); - NNI_ASSERT(nni_list_empty(&s->ready_pipes)); - nni_mtx_unlock(&s->mtx); - - req0_ctx_fini(&s->master); - nni_pollable_fini(&s->readable); - nni_pollable_fini(&s->writable); - nni_id_map_fini(&s->requests); - nni_mtx_fini(&s->mtx); -} - -static void -req0_pipe_stop(void *arg) -{ - req0_pipe *p = arg; - req0_sock *s = p->req; - - nni_aio_stop(&p->aio_recv); - nni_aio_stop(&p->aio_send); - nni_mtx_lock(&s->mtx); - nni_list_node_remove(&p->node); - nni_mtx_unlock(&s->mtx); -} - -static void -req0_pipe_fini(void *arg) -{ - req0_pipe *p = arg; - - nni_aio_fini(&p->aio_recv); - nni_aio_fini(&p->aio_send); -} - -static int -req0_pipe_init(void *arg, nni_pipe *pipe, void *s) -{ - req0_pipe *p = arg; - - nni_aio_init(&p->aio_recv, req0_recv_cb, p); - nni_aio_init(&p->aio_send, req0_send_cb, p); - NNI_LIST_NODE_INIT(&p->node); - NNI_LIST_INIT(&p->contexts, req0_ctx, pipe_node); - p->pipe = pipe; - p->req = s; - return (0); -} - -static int -req0_pipe_start(void *arg) -{ - req0_pipe *p = arg; - req0_sock *s = p->req; - - if (nni_pipe_peer(p->pipe) != NNG_REQ0_PEER) { - return (NNG_EPROTO); - } - - nni_mtx_lock(&s->mtx); - nni_list_append(&s->ready_pipes, p); - nni_pollable_raise(&s->writable); - req0_run_send_queue(s, NULL); - nni_mtx_unlock(&s->mtx); - - nni_pipe_recv(p->pipe, &p->aio_recv); - return (0); -} - -static void -req0_pipe_close(void *arg) -{ - req0_pipe *p = arg; - req0_sock *s = p->req; - req0_ctx * ctx; - - nni_aio_close(&p->aio_recv); - nni_aio_close(&p->aio_send); - - nni_mtx_lock(&s->mtx); - // This removes the node from either busy_pipes or ready_pipes. - // It doesn't much matter which. We stick the pipe on the stop - // list, so that we can wait for that to close down safely. - p->closed = true; - nni_list_node_remove(&p->node); - nni_list_append(&s->stop_pipes, p); - if (nni_list_empty(&s->ready_pipes)) { - nni_pollable_clear(&s->writable); - } - - while ((ctx = nni_list_first(&p->contexts)) != NULL) { - nni_list_remove(&p->contexts, ctx); - nng_aio *aio; - if (ctx->retry <= 0) { - // If we can't retry, then just cancel the operation - // altogether. We should only be waiting for recv, - // because we will already have sent if we are here. - if ((aio = ctx->recv_aio) != NULL) { - ctx->recv_aio = NULL; - nni_aio_finish_error(aio, NNG_ECONNRESET); - req0_ctx_reset(ctx); - } else { - req0_ctx_reset(ctx); - ctx->conn_reset = true; - } - } else { - // Reset the timer on this so it expires immediately. - // This is actually easier than canceling the timer and - // running the send_queue separately. (In particular, - // it avoids a potential deadlock on cancelling the - // timer.) - nni_timer_schedule(&ctx->timer, NNI_TIME_ZERO); - } - } - nni_mtx_unlock(&s->mtx); -} - -// For cooked mode, we use a context, and send out that way. This -// completely bypasses the upper write queue. Each context keeps one -// message pending; these are "scheduled" via the send_queue. The send_queue -// is ordered, so FIFO ordering between contexts is provided for. - -static void -req0_send_cb(void *arg) -{ - req0_pipe *p = arg; - req0_sock *s = p->req; - nni_aio * aio; - nni_list sent_list; - - nni_aio_list_init(&sent_list); - if (nni_aio_result(&p->aio_send) != 0) { - // We failed to send... clean up and deal with it. - nni_msg_free(nni_aio_get_msg(&p->aio_send)); - nni_aio_set_msg(&p->aio_send, NULL); - nni_pipe_close(p->pipe); - return; - } - - // We completed a cooked send, so we need to reinsert ourselves - // in the ready list, and re-run the send_queue. - - nni_mtx_lock(&s->mtx); - if (p->closed || s->closed) { - // This occurs if the req0_pipe_close has been called. - // In that case we don't want any more processing. - nni_mtx_unlock(&s->mtx); - return; - } - nni_list_remove(&s->busy_pipes, p); - nni_list_append(&s->ready_pipes, p); - if (nni_list_empty(&s->send_queue)) { - nni_pollable_raise(&s->writable); - } - req0_run_send_queue(s, &sent_list); - nni_mtx_unlock(&s->mtx); - - while ((aio = nni_list_first(&sent_list)) != NULL) { - nni_list_remove(&sent_list, aio); - nni_aio_finish_sync(aio, 0, 0); - } -} - -static void -req0_recv_cb(void *arg) -{ - req0_pipe *p = arg; - req0_sock *s = p->req; - req0_ctx * ctx; - nni_msg * msg; - nni_aio * aio; - uint32_t id; - - if (nni_aio_result(&p->aio_recv) != 0) { - nni_pipe_close(p->pipe); - return; - } - - msg = nni_aio_get_msg(&p->aio_recv); - nni_aio_set_msg(&p->aio_recv, NULL); - nni_msg_set_pipe(msg, nni_pipe_id(p->pipe)); - - // We yank 4 bytes from front of body, and move them to the header. - if (nni_msg_len(msg) < 4) { - // Malformed message. - goto malformed; - } - id = nni_msg_trim_u32(msg); - - // Schedule another receive while we are processing this. - nni_mtx_lock(&s->mtx); - - // NB: If close was called, then this will just abort. - nni_pipe_recv(p->pipe, &p->aio_recv); - - // Look for a context to receive it. - if (((ctx = nni_id_get(&s->requests, id)) == NULL) || - (ctx->send_aio != NULL) || (ctx->rep_msg != NULL)) { - nni_mtx_unlock(&s->mtx); - // No waiting context, we have not sent the request out to - // the wire yet, or context already has a reply ready. - // Discard the message. - nni_msg_free(msg); - return; - } - - // We have our match, so we can remove this. - nni_list_node_remove(&ctx->send_node); - nni_id_remove(&s->requests, id); - ctx->request_id = 0; - if (ctx->req_msg != NULL) { - nni_msg_free(ctx->req_msg); - ctx->req_msg = NULL; - } - - // Is there an aio waiting for us? - if ((aio = ctx->recv_aio) != NULL) { - ctx->recv_aio = NULL; - nni_mtx_unlock(&s->mtx); - nni_aio_set_msg(aio, msg); - nni_aio_finish_sync(aio, 0, nni_msg_len(msg)); - } else { - // No AIO, so stash msg. Receive will pick it up later. - ctx->rep_msg = msg; - if (ctx == &s->master) { - nni_pollable_raise(&s->readable); - } - nni_mtx_unlock(&s->mtx); - } - return; - -malformed: - nni_msg_free(msg); - nni_pipe_close(p->pipe); -} - -static void -req0_ctx_timeout(void *arg) -{ - req0_ctx * ctx = arg; - req0_sock *s = ctx->sock; - - nni_mtx_lock(&s->mtx); - if ((ctx->req_msg != NULL) && (!s->closed)) { - if (!nni_list_node_active(&ctx->send_node)) { - nni_list_append(&s->send_queue, ctx); - } - req0_run_send_queue(s, NULL); - } - nni_mtx_unlock(&s->mtx); -} - -static int -req0_ctx_init(void *arg, void *sock) -{ - req0_sock *s = sock; - req0_ctx * ctx = arg; - - nni_timer_init(&ctx->timer, req0_ctx_timeout, ctx); - - nni_mtx_lock(&s->mtx); - ctx->sock = s; - ctx->recv_aio = NULL; - ctx->retry = s->retry; - nni_list_append(&s->contexts, ctx); - nni_mtx_unlock(&s->mtx); - - return (0); -} - -static void -req0_ctx_fini(void *arg) -{ - req0_ctx * ctx = arg; - req0_sock *s = ctx->sock; - nni_aio * aio; - - nni_mtx_lock(&s->mtx); - if ((aio = ctx->recv_aio) != NULL) { - ctx->recv_aio = NULL; - nni_aio_finish_error(aio, NNG_ECLOSED); - } - if ((aio = ctx->send_aio) != NULL) { - ctx->send_aio = NULL; - nni_aio_set_msg(aio, ctx->req_msg); - ctx->req_msg = NULL; - nni_aio_finish_error(aio, NNG_ECLOSED); - } - req0_ctx_reset(ctx); - nni_list_remove(&s->contexts, ctx); - nni_mtx_unlock(&s->mtx); - - nni_timer_cancel(&ctx->timer); - nni_timer_fini(&ctx->timer); -} - -static int -req0_ctx_set_resend_time(void *arg, const void *buf, size_t sz, nni_opt_type t) -{ - req0_ctx *ctx = arg; - return (nni_copyin_ms(&ctx->retry, buf, sz, t)); -} - -static int -req0_ctx_get_resend_time(void *arg, void *buf, size_t *szp, nni_opt_type t) -{ - req0_ctx *ctx = arg; - return (nni_copyout_ms(ctx->retry, buf, szp, t)); -} - -static void -req0_run_send_queue(req0_sock *s, nni_list *sent_list) -{ - req0_ctx *ctx; - nni_aio * aio; - - // Note: This routine should be called with the socket lock held. - while ((ctx = nni_list_first(&s->send_queue)) != NULL) { - req0_pipe *p; - - if ((p = nni_list_first(&s->ready_pipes)) == NULL) { - return; - } - - // We have a place to send it, so do the send. - // If a sending error occurs that causes the message to - // be dropped, we rely on the resend timer to pick it up. - // We also notify the completion callback if this is the - // first send attempt. - nni_list_remove(&s->send_queue, ctx); - - // Schedule a resubmit timer. We only do this if we got - // a pipe to send to. Otherwise, we should get handled - // the next time that the send_queue is run. We don't do this - // if the retry is "disabled" with NNG_DURATION_INFINITE. - if (ctx->retry > 0) { - nni_timer_schedule( - &ctx->timer, nni_clock() + ctx->retry); - } - - // Put us on the pipe list of active contexts. - // This gives the pipe a chance to kick a resubmit - // if the pipe is removed. - nni_list_node_remove(&ctx->pipe_node); - nni_list_append(&p->contexts, ctx); - - nni_list_remove(&s->ready_pipes, p); - nni_list_append(&s->busy_pipes, p); - if (nni_list_empty(&s->ready_pipes)) { - nni_pollable_clear(&s->writable); - } - - if ((aio = ctx->send_aio) != NULL) { - ctx->send_aio = NULL; - nni_aio_bump_count(aio, ctx->req_len); - // If the list was passed in, we want to do a - // synchronous completion later. - if (sent_list != NULL) { - nni_list_append(sent_list, aio); - } else { - nni_aio_finish(aio, 0, 0); - } - } - - // At this point, we will never give this message back to - // to the user, so we don't have to worry about making it - // unique. We can freely clone it. - nni_msg_clone(ctx->req_msg); - nni_aio_set_msg(&p->aio_send, ctx->req_msg); - nni_pipe_send(p->pipe, &p->aio_send); - } -} - -void -req0_ctx_reset(req0_ctx *ctx) -{ - req0_sock *s = ctx->sock; - // Call with sock lock held! - - // We cannot safely "wait" using nni_timer_cancel, but this removes - // any scheduled timer activation. If the timeout is already running - // concurrently, it will still run. It should do nothing, because - // we toss the request. There is still a very narrow race if the - // timeout fires, but doesn't actually start running before we - // both finish this function, *and* manage to reschedule another - // request. The consequence of that occurring is that the request - // will be emitted on the wire twice. This is not actually tragic. - nni_timer_schedule(&ctx->timer, NNI_TIME_NEVER); - - nni_list_node_remove(&ctx->pipe_node); - nni_list_node_remove(&ctx->send_node); - if (ctx->request_id != 0) { - nni_id_remove(&s->requests, ctx->request_id); - ctx->request_id = 0; - } - if (ctx->req_msg != NULL) { - nni_msg_free(ctx->req_msg); - ctx->req_msg = NULL; - } - if (ctx->rep_msg != NULL) { - nni_msg_free(ctx->rep_msg); - ctx->rep_msg = NULL; - } - ctx->conn_reset = false; -} - -static void -req0_ctx_cancel_recv(nni_aio *aio, void *arg, int rv) -{ - req0_ctx * ctx = arg; - req0_sock *s = ctx->sock; - - nni_mtx_lock(&s->mtx); - if (ctx->recv_aio == aio) { - ctx->recv_aio = NULL; - - // Cancellation of a pending receive is treated as aborting the - // entire state machine. This allows us to preserve the - // semantic of exactly one receive operation per send - // operation, and should be the least surprising for users. The - // main consequence is that if a receive operation is completed - // (in error or otherwise), the user must submit a new send - // operation to restart the state machine. - req0_ctx_reset(ctx); - - nni_aio_finish_error(aio, rv); - } - nni_mtx_unlock(&s->mtx); -} - -static void -req0_ctx_recv(void *arg, nni_aio *aio) -{ - req0_ctx * ctx = arg; - req0_sock *s = ctx->sock; - nni_msg * msg; - - if (nni_aio_begin(aio) != 0) { - return; - } - nni_mtx_lock(&s->mtx); - if ((ctx->recv_aio != NULL) || - ((ctx->req_msg == NULL) && (ctx->rep_msg == NULL))) { - // We have already got a pending receive or have not - // tried to send a request yet. - // Either of these violate our basic state assumptions. - int rv; - if (ctx->conn_reset) { - ctx->conn_reset = false; - rv = NNG_ECONNRESET; - } else { - rv = NNG_ESTATE; - } - nni_mtx_unlock(&s->mtx); - nni_aio_finish_error(aio, rv); - return; - } - - if ((msg = ctx->rep_msg) == NULL) { - int rv; - rv = nni_aio_schedule(aio, req0_ctx_cancel_recv, ctx); - if (rv != 0) { - nni_mtx_unlock(&s->mtx); - nni_aio_finish_error(aio, rv); - return; - } - ctx->recv_aio = aio; - nni_mtx_unlock(&s->mtx); - return; - } - - ctx->rep_msg = NULL; - - // We have got a message to pass up, yay! - nni_aio_set_msg(aio, msg); - if (ctx == &s->master) { - nni_pollable_clear(&s->readable); - } - nni_mtx_unlock(&s->mtx); - nni_aio_finish(aio, 0, nni_msg_len(msg)); -} - -static void -req0_ctx_cancel_send(nni_aio *aio, void *arg, int rv) -{ - req0_ctx * ctx = arg; - req0_sock *s = ctx->sock; - - nni_mtx_lock(&s->mtx); - if (ctx->send_aio == aio) { - // There should not be a pending reply, because we canceled - // it while we were waiting. - NNI_ASSERT(ctx->recv_aio == NULL); - ctx->send_aio = NULL; - // Restore the message back to the aio. - nni_aio_set_msg(aio, ctx->req_msg); - nni_msg_header_clear(ctx->req_msg); - ctx->req_msg = NULL; - - // Cancellation of a pending receive is treated as aborting the - // entire state machine. This allows us to preserve the - // semantic of exactly one receive operation per send - // operation, and should be the least surprising for users. The - // main consequence is that if a receive operation is completed - // (in error or otherwise), the user must submit a new send - // operation to restart the state machine. - req0_ctx_reset(ctx); - - nni_aio_finish_error(aio, rv); - } - nni_mtx_unlock(&s->mtx); -} - -static void -req0_ctx_send(void *arg, nni_aio *aio) -{ - req0_ctx * ctx = arg; - req0_sock *s = ctx->sock; - nng_msg * msg = nni_aio_get_msg(aio); - int rv; - - if (nni_aio_begin(aio) != 0) { - return; - } - nni_mtx_lock(&s->mtx); - if (s->closed) { - nni_mtx_unlock(&s->mtx); - nni_aio_finish_error(aio, NNG_ECLOSED); - return; - } - // Sending a new request cancels the old one, including any - // outstanding reply. - if (ctx->recv_aio != NULL) { - nni_aio_finish_error(ctx->recv_aio, NNG_ECANCELED); - ctx->recv_aio = NULL; - } - if (ctx->send_aio != NULL) { - nni_aio_set_msg(ctx->send_aio, ctx->req_msg); - nni_msg_header_clear(ctx->req_msg); - ctx->req_msg = NULL; - nni_aio_finish_error(ctx->send_aio, NNG_ECANCELED); - ctx->send_aio = NULL; - nni_list_remove(&s->send_queue, ctx); - } - - // This resets the entire state machine. - req0_ctx_reset(ctx); - - // Insert us on the per ID hash list, so that receives can find us. - if ((rv = nni_id_alloc(&s->requests, &ctx->request_id, ctx)) != 0) { - nni_mtx_unlock(&s->mtx); - nni_aio_finish_error(aio, rv); - return; - } - nni_msg_header_clear(msg); - nni_msg_header_append_u32(msg, ctx->request_id); - - // If no pipes are ready, and the request was a poll (no background - // schedule), then fail it. Should be NNG_ETIMEDOUT. - rv = nni_aio_schedule(aio, req0_ctx_cancel_send, ctx); - if ((rv != 0) && (nni_list_empty(&s->ready_pipes))) { - nni_id_remove(&s->requests, ctx->request_id); - nni_mtx_unlock(&s->mtx); - nni_aio_finish_error(aio, rv); - return; - } - ctx->req_len = nni_msg_len(msg); - ctx->req_msg = msg; - ctx->send_aio = aio; - nni_aio_set_msg(aio, NULL); - - // Stick us on the send_queue list. - nni_list_append(&s->send_queue, ctx); - - req0_run_send_queue(s, NULL); - nni_mtx_unlock(&s->mtx); -} - -static void -req0_sock_send(void *arg, nni_aio *aio) -{ - req0_sock *s = arg; - req0_ctx_send(&s->master, aio); -} - -static void -req0_sock_recv(void *arg, nni_aio *aio) -{ - req0_sock *s = arg; - req0_ctx_recv(&s->master, aio); -} - -static int -req0_sock_set_max_ttl(void *arg, const void *buf, size_t sz, nni_opt_type t) -{ - req0_sock *s = arg; - int ttl; - int rv; - if ((rv = nni_copyin_int(&ttl, buf, sz, 1, NNI_MAX_MAX_TTL, t)) == 0) { - nni_atomic_set(&s->ttl, ttl); - } - return (rv); -} - -static int -req0_sock_get_max_ttl(void *arg, void *buf, size_t *szp, nni_opt_type t) -{ - req0_sock *s = arg; - return (nni_copyout_int(nni_atomic_get(&s->ttl), buf, szp, t)); -} - -static int -req0_sock_set_resend_time( - void *arg, const void *buf, size_t sz, nni_opt_type t) -{ - req0_sock *s = arg; - int rv; - rv = req0_ctx_set_resend_time(&s->master, buf, sz, t); - s->retry = s->master.retry; - return (rv); -} - -static int -req0_sock_get_resend_time(void *arg, void *buf, size_t *szp, nni_opt_type t) -{ - req0_sock *s = arg; - return (req0_ctx_get_resend_time(&s->master, buf, szp, t)); -} - -static int -req0_sock_get_send_fd(void *arg, void *buf, size_t *szp, nni_opt_type t) -{ - req0_sock *s = arg; - int rv; - int fd; - - if ((rv = nni_pollable_getfd(&s->writable, &fd)) != 0) { - return (rv); - } - return (nni_copyout_int(fd, buf, szp, t)); -} - -static int -req0_sock_get_recv_fd(void *arg, void *buf, size_t *szp, nni_opt_type t) -{ - req0_sock *s = arg; - int rv; - int fd; - - if ((rv = nni_pollable_getfd(&s->readable, &fd)) != 0) { - return (rv); - } - - return (nni_copyout_int(fd, buf, szp, t)); -} - -static nni_proto_pipe_ops req0_pipe_ops = { - .pipe_size = sizeof(req0_pipe), - .pipe_init = req0_pipe_init, - .pipe_fini = req0_pipe_fini, - .pipe_start = req0_pipe_start, - .pipe_close = req0_pipe_close, - .pipe_stop = req0_pipe_stop, -}; - -static nni_option req0_ctx_options[] = { - { - .o_name = NNG_OPT_REQ_RESENDTIME, - .o_get = req0_ctx_get_resend_time, - .o_set = req0_ctx_set_resend_time, - }, - { - .o_name = NULL, - }, -}; - -static nni_proto_ctx_ops req0_ctx_ops = { - .ctx_size = sizeof(req0_ctx), - .ctx_init = req0_ctx_init, - .ctx_fini = req0_ctx_fini, - .ctx_recv = req0_ctx_recv, - .ctx_send = req0_ctx_send, - .ctx_options = req0_ctx_options, -}; - -static nni_option req0_sock_options[] = { - { - .o_name = NNG_OPT_MAXTTL, - .o_get = req0_sock_get_max_ttl, - .o_set = req0_sock_set_max_ttl, - }, - { - .o_name = NNG_OPT_REQ_RESENDTIME, - .o_get = req0_sock_get_resend_time, - .o_set = req0_sock_set_resend_time, - }, - { - .o_name = NNG_OPT_RECVFD, - .o_get = req0_sock_get_recv_fd, - }, - { - .o_name = NNG_OPT_SENDFD, - .o_get = req0_sock_get_send_fd, - }, - // terminate list - { - .o_name = NULL, - }, -}; - -static nni_proto_sock_ops req0_sock_ops = { - .sock_size = sizeof(req0_sock), - .sock_init = req0_sock_init, - .sock_fini = req0_sock_fini, - .sock_open = req0_sock_open, - .sock_close = req0_sock_close, - .sock_options = req0_sock_options, - .sock_send = req0_sock_send, - .sock_recv = req0_sock_recv, -}; - -static nni_proto req0_proto = { - .proto_version = NNI_PROTOCOL_VERSION, - .proto_self = { NNG_REQ0_SELF, NNG_REQ0_SELF_NAME }, - .proto_peer = { NNG_REQ0_PEER, NNG_REQ0_PEER_NAME }, - .proto_flags = NNI_PROTO_FLAG_SNDRCV, - .proto_sock_ops = &req0_sock_ops, - .proto_pipe_ops = &req0_pipe_ops, - .proto_ctx_ops = &req0_ctx_ops, -}; - -int -nng_req0_open(nng_socket *sock) -{ - return (nni_proto_open(sock, &req0_proto)); -} diff --git a/src/protocol/reqrep0/req_test.c b/src/protocol/reqrep0/req_test.c deleted file mode 100644 index fb78efa0..00000000 --- a/src/protocol/reqrep0/req_test.c +++ /dev/null @@ -1,968 +0,0 @@ -// -// Copyright 2020 Staysail Systems, Inc. <info@staysail.tech> -// Copyright 2018 Capitar IT Group BV <info@capitar.com> -// -// This software is supplied under the terms of the MIT License, a -// copy of which should be located in the distribution where this -// file was obtained (LICENSE.txt). A copy of the license may also be -// found online at https://opensource.org/licenses/MIT. -// - -#include <nuts.h> - -static void -test_req_identity(void) -{ - nng_socket s; - int p; - char * n; - - NUTS_PASS(nng_req0_open(&s)); - NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PROTO, &p)); - NUTS_TRUE(p == NNG_REQ0_SELF); - NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PEER, &p)); - NUTS_TRUE(p == NNG_REQ0_PEER); // 49 - NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PROTONAME, &n)); - NUTS_MATCH(n, NNG_REQ0_SELF_NAME); - nng_strfree(n); - NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PEERNAME, &n)); - NUTS_MATCH(n, NNG_REQ0_PEER_NAME); - nng_strfree(n); - NUTS_CLOSE(s); -} - -static void -test_req_ttl_option(void) -{ - nng_socket req; - int v; - bool b; - size_t sz; - const char *opt = NNG_OPT_MAXTTL; - - NUTS_PASS(nng_req0_open(&req)); - - NUTS_PASS(nng_socket_set_int(req, opt, 1)); - NUTS_FAIL(nng_socket_set_int(req, opt, 0), NNG_EINVAL); - NUTS_FAIL(nng_socket_set_int(req, opt, -1), NNG_EINVAL); - // This test will fail if the NNI_MAX_MAX_TTL is changed from the - // builtin default of 15. - NUTS_FAIL(nng_socket_set_int(req, opt, 16), NNG_EINVAL); - NUTS_FAIL(nng_socket_set_int(req, opt, 256), NNG_EINVAL); - NUTS_PASS(nng_socket_set_int(req, opt, 3)); - NUTS_PASS(nng_socket_get_int(req, opt, &v)); - NUTS_TRUE(v == 3); - v = 0; - sz = sizeof(v); - NUTS_PASS(nng_socket_get(req, opt, &v, &sz)); - NUTS_TRUE(v == 3); - NUTS_TRUE(sz == sizeof(v)); - - NUTS_FAIL(nng_socket_set(req, opt, "", 1), NNG_EINVAL); - sz = 1; - NUTS_FAIL(nng_socket_get(req, opt, &v, &sz), NNG_EINVAL); - NUTS_FAIL(nng_socket_set_bool(req, opt, true), NNG_EBADTYPE); - NUTS_FAIL(nng_socket_get_bool(req, opt, &b), NNG_EBADTYPE); - - NUTS_CLOSE(req); -} - -static void -test_req_resend_option(void) -{ - nng_socket req; - nng_duration d; - bool b; - size_t sz = sizeof(b); - const char * opt = NNG_OPT_REQ_RESENDTIME; - - NUTS_PASS(nng_req0_open(&req)); - - NUTS_TRUE(nng_socket_set_ms(req, opt, 10) == 0); - NUTS_FAIL(nng_socket_set(req, opt, "", 1), NNG_EINVAL); - NUTS_FAIL(nng_socket_get(req, opt, &b, &sz), NNG_EINVAL); - NUTS_FAIL(nng_socket_set_bool(req, opt, true), NNG_EBADTYPE); - NUTS_FAIL(nng_socket_get_bool(req, opt, &b), NNG_EBADTYPE); - - NUTS_PASS(nng_socket_get_ms(req, opt, &d)); - NUTS_TRUE(d == 10); - NUTS_CLOSE(req); -} - -void -test_req_recv_bad_state(void) -{ - nng_socket req; - nng_msg * msg = NULL; - - NUTS_TRUE(nng_req0_open(&req) == 0); - NUTS_TRUE(nng_recvmsg(req, &msg, 0) == NNG_ESTATE); - NUTS_NULL(msg); - NUTS_CLOSE(req); -} - -static void -test_req_recv_garbage(void) -{ - nng_socket rep; - nng_socket req; - nng_msg * m; - uint32_t req_id; - - NUTS_PASS(nng_rep0_open_raw(&rep)); - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_RECVTIMEO, 100)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 1000)); - - NUTS_MARRY(req, rep); - - NUTS_PASS(nng_msg_alloc(&m, 0)); - NUTS_PASS(nng_sendmsg(req, m, 0)); - - NUTS_PASS(nng_recvmsg(rep, &m, 0)); - - // The message will have a header that contains the 32-bit pipe ID, - // followed by the 32-bit request ID. We will discard the request - // ID before sending it out. - NUTS_TRUE(nng_msg_header_len(m) == 8); - NUTS_PASS(nng_msg_header_chop_u32(m, &req_id)); - - NUTS_PASS(nng_sendmsg(rep, m, 0)); - NUTS_FAIL(nng_recvmsg(req, &m, 0), NNG_ETIMEDOUT); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -#define SECOND 1000 - -void -test_req_rep_exchange(void) -{ - nng_socket req; - nng_socket rep; - - NUTS_TRUE(nng_req0_open(&req) == 0); - NUTS_TRUE(nng_rep0_open(&rep) == 0); - - NUTS_TRUE(nng_socket_set_ms(req, NNG_OPT_RECVTIMEO, SECOND) == 0); - NUTS_TRUE(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, SECOND) == 0); - NUTS_TRUE(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, SECOND) == 0); - NUTS_TRUE(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, SECOND) == 0); - - NUTS_MARRY(rep, req); - - NUTS_SEND(req, "ping"); - NUTS_RECV(rep, "ping"); - NUTS_SEND(rep, "pong"); - NUTS_RECV(req, "pong"); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -void -test_req_resend(void) -{ - nng_socket req; - nng_socket rep; - - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_rep0_open(&rep)); - - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_RECVTIMEO, SECOND)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, SECOND)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, SECOND)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, SECOND)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_REQ_RESENDTIME, 10)); - - NUTS_MARRY(rep, req); - - NUTS_SEND(req, "ping"); - NUTS_RECV(rep, "ping"); - NUTS_RECV(rep, "ping"); - NUTS_RECV(rep, "ping"); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -void -test_req_resend_reconnect(void) -{ - nng_socket req; - nng_socket rep1; - nng_socket rep2; - - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_rep0_open(&rep1)); - NUTS_PASS(nng_rep0_open(&rep2)); - - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_RECVTIMEO, SECOND)); - NUTS_PASS(nng_socket_set_ms(rep1, NNG_OPT_RECVTIMEO, SECOND)); - NUTS_PASS(nng_socket_set_ms(rep2, NNG_OPT_RECVTIMEO, SECOND)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, SECOND)); - NUTS_PASS(nng_socket_set_ms(rep1, NNG_OPT_SENDTIMEO, SECOND)); - NUTS_PASS(nng_socket_set_ms(rep2, NNG_OPT_SENDTIMEO, SECOND)); - // We intentionally set the retry time long; that way we only see - // the retry from loss of our original peer. - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_REQ_RESENDTIME, 60 * SECOND)); - - NUTS_MARRY(rep1, req); - - NUTS_SEND(req, "ping"); - NUTS_RECV(rep1, "ping"); - - NUTS_CLOSE(rep1); - NUTS_MARRY(rep2, req); - - NUTS_RECV(rep2, "ping"); - NUTS_SEND(rep2, "rep2"); - NUTS_RECV(req, "rep2"); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep2); -} - -void -test_req_resend_disconnect(void) -{ - nng_socket req; - nng_socket rep1; - nng_socket rep2; - - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_rep0_open(&rep1)); - NUTS_PASS(nng_rep0_open(&rep2)); - - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_RECVTIMEO, SECOND)); - NUTS_PASS(nng_socket_set_ms(rep1, NNG_OPT_RECVTIMEO, SECOND)); - NUTS_PASS(nng_socket_set_ms(rep2, NNG_OPT_RECVTIMEO, SECOND)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, SECOND)); - NUTS_PASS(nng_socket_set_ms(rep1, NNG_OPT_SENDTIMEO, SECOND)); - NUTS_PASS(nng_socket_set_ms(rep2, NNG_OPT_SENDTIMEO, SECOND)); - // We intentionally set the retry time long; that way we only see - // the retry from loss of our original peer. - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_REQ_RESENDTIME, 60 * SECOND)); - - NUTS_MARRY(rep1, req); - NUTS_SEND(req, "ping"); - NUTS_RECV(rep1, "ping"); - - NUTS_MARRY(rep2, req); - NUTS_CLOSE(rep1); - - NUTS_RECV(rep2, "ping"); - NUTS_SEND(rep2, "rep2"); - NUTS_RECV(req, "rep2"); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep2); -} - -void -test_req_disconnect_no_retry(void) -{ - nng_socket req; - nng_socket rep1; - nng_socket rep2; - - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_rep0_open(&rep1)); - NUTS_PASS(nng_rep0_open(&rep2)); - - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_RECVTIMEO, SECOND)); - NUTS_PASS(nng_socket_set_ms(rep1, NNG_OPT_RECVTIMEO, SECOND)); - NUTS_PASS(nng_socket_set_ms(rep2, NNG_OPT_RECVTIMEO, SECOND)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, SECOND)); - NUTS_PASS(nng_socket_set_ms(rep1, NNG_OPT_SENDTIMEO, SECOND / 10)); - // Setting the resend time to zero so we will force an error - // if the peer disconnects without sending us an answer. - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_REQ_RESENDTIME, 0)); - - NUTS_MARRY(rep1, req); - NUTS_SEND(req, "ping"); - NUTS_RECV(rep1, "ping"); - - NUTS_MARRY(rep2, req); - NUTS_CLOSE(rep1); - - nng_msg *msg = NULL; - NUTS_FAIL(nng_recvmsg(req, &msg, 0), NNG_ECONNRESET); - NUTS_FAIL(nng_recvmsg(rep2, &msg, 0), NNG_ETIMEDOUT); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep2); -} - -void -test_req_disconnect_abort(void) -{ - nng_socket req; - nng_socket rep1; - nng_socket rep2; - nng_aio * aio; - - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_rep0_open(&rep1)); - NUTS_PASS(nng_rep0_open(&rep2)); - NUTS_PASS(nng_aio_alloc(&aio, 0, 0)); - - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_RECVTIMEO, SECOND)); - NUTS_PASS(nng_socket_set_ms(rep1, NNG_OPT_RECVTIMEO, SECOND)); - NUTS_PASS(nng_socket_set_ms(rep2, NNG_OPT_RECVTIMEO, SECOND)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, SECOND)); - NUTS_PASS(nng_socket_set_ms(rep1, NNG_OPT_SENDTIMEO, SECOND / 10)); - // Setting the resend time to zero so we will force an error - // if the peer disconnects without sending us an answer. - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_REQ_RESENDTIME, 0)); - - NUTS_MARRY(rep1, req); - NUTS_SEND(req, "ping"); - NUTS_RECV(rep1, "ping"); - nng_recv_aio(req, aio); - - NUTS_MARRY(rep2, req); - NUTS_CLOSE(rep1); - - nng_msg *msg = NULL; - nng_aio_wait(aio); - NUTS_FAIL(nng_aio_result(aio), NNG_ECONNRESET); - NUTS_FAIL(nng_recvmsg(rep2, &msg, 0), NNG_ETIMEDOUT); - nng_aio_free(aio); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep2); -} - -void -test_req_cancel(void) -{ - nng_duration retry = SECOND; - nng_socket req; - nng_socket rep; - - NUTS_PASS(nng_rep_open(&rep)); - NUTS_PASS(nng_req_open(&req)); - - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_RECVTIMEO, SECOND)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, SECOND)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 5 * SECOND)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 5 * SECOND)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_REQ_RESENDTIME, retry)); - NUTS_PASS(nng_socket_set_int(req, NNG_OPT_SENDBUF, 16)); - - NUTS_MARRY(rep, req); - - // Send req #1 (abc). - NUTS_SEND(req, "abc"); - - // Sleep a bit. This is so that we ensure that our request gets - // to the far side. (If we cancel too fast, then our outgoing send - // will be canceled before it gets to the peer.) - NUTS_SLEEP(100); - - // Send the next next request ("def"). Note that - // the REP side server will have already buffered the receive - // request, and should simply be waiting for us to reply to abc. - NUTS_SEND(req, "def"); - - // Receive the first request (should be abc) on the REP server. - NUTS_RECV(rep, "abc"); - - // REP sends the reply to first command. This will be discarded - // by the REQ socket. - NUTS_SEND(rep, "abc"); - - // Now get the next command from the REP; should be "def". - NUTS_RECV(rep, "def"); - - // And send it back to REQ. - NUTS_SEND(rep, "def"); - - // And we got back only the second result. - NUTS_RECV(req, "def"); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -void -test_req_cancel_abort_recv(void) -{ - nng_aio * aio; - nng_duration retry = SECOND * 10; // 10s (kind of never) - nng_socket req; - nng_socket rep; - - NUTS_PASS(nng_rep_open(&rep)); - NUTS_PASS(nng_req_open(&req)); - NUTS_PASS(nng_aio_alloc(&aio, NULL, NULL)); - - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_REQ_RESENDTIME, retry)); - NUTS_PASS(nng_socket_set_int(req, NNG_OPT_SENDBUF, 16)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_RECVTIMEO, 5 * SECOND)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, 5 * SECOND)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 5 * SECOND)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 5 * SECOND)); - - NUTS_MARRY(rep, req); - - // Send req #1 (abc). - NUTS_SEND(req, "abc"); - - // Wait for it to get ot the other side. - NUTS_SLEEP(100); - - nng_aio_set_timeout(aio, 5 * SECOND); - nng_recv_aio(req, aio); - - // Give time for this recv to post properly. - NUTS_SLEEP(100); - - // Send the next next request ("def"). Note that - // the REP side server will have already buffered the receive - // request, and should simply be waiting for us to reply to - // abc. - NUTS_SEND(req, "def"); - - // Our pending I/O should have been canceled. - nng_aio_wait(aio); - NUTS_FAIL(nng_aio_result(aio), NNG_ECANCELED); - - // Receive the first request (should be abc) on the REP server. - NUTS_RECV(rep, "abc"); - - // REP sends the reply to first command. This will be - // discarded by the REQ socket. - NUTS_SEND(rep, "abc"); - - // Now get the next command from the REP; should be "def". - NUTS_RECV(rep, "def"); - - // And send it back to REQ. - NUTS_SEND(rep, "def"); - - // Try a req command. This should give back "def" - NUTS_RECV(req, "def"); - - nng_aio_free(aio); - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -static void -test_req_cancel_post_recv(void) -{ - nng_socket req; - nng_socket rep; - - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_rep0_open(&rep)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_RECVTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, 1000)); - NUTS_MARRY(req, rep); - - NUTS_SEND(req, "ONE"); - NUTS_RECV(rep, "ONE"); - NUTS_SEND(rep, "one"); - NUTS_SLEEP(100); // Make sure reply arrives! - NUTS_SEND(req, "TWO"); - NUTS_RECV(rep, "TWO"); - NUTS_SEND(rep, "two"); - NUTS_RECV(req, "two"); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -void -test_req_poll_writeable(void) -{ - int fd; - nng_socket req; - nng_socket rep; - - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_rep0_open(&rep)); - NUTS_PASS(nng_socket_get_int(req, NNG_OPT_SENDFD, &fd)); - NUTS_TRUE(fd >= 0); - - // Not writable before connect. - NUTS_TRUE(nuts_poll_fd(fd) == false); - - NUTS_MARRY(req, rep); - - // It should be writable now. - NUTS_TRUE(nuts_poll_fd(fd)); - - // Submit a bunch of jobs. Note that we have to stall a bit - // between each message to let it queue up. - for (int i = 0; i < 10; i++) { - int rv = nng_send(req, "", 0, NNG_FLAG_NONBLOCK); - if (rv == NNG_EAGAIN) { - break; - } - NUTS_PASS(rv); - NUTS_SLEEP(50); - } - NUTS_TRUE(nuts_poll_fd(fd) == false); - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -void -test_req_poll_contention(void) -{ - int fd; - nng_socket req; - nng_socket rep; - nng_aio * aio; - nng_ctx ctx[5]; - nng_aio * ctx_aio[5]; - nng_msg * ctx_msg[5]; - nng_msg * msg; - - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_rep0_open(&rep)); - NUTS_PASS(nng_socket_set_int(req, NNG_OPT_SENDBUF, 1)); - NUTS_PASS(nng_socket_set_int(rep, NNG_OPT_RECVBUF, 1)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, 1000)); - - for (int i = 0; i < 5; i++) { - NUTS_PASS(nng_ctx_open(&ctx[i], req)); - NUTS_PASS(nng_aio_alloc(&ctx_aio[i], NULL, NULL)); - NUTS_PASS(nng_msg_alloc(&ctx_msg[i], 0)); - } - NUTS_PASS(nng_aio_alloc(&aio, NULL, NULL)); - NUTS_PASS(nng_msg_alloc(&msg, 0)); - - NUTS_PASS(nng_socket_get_int(req, NNG_OPT_SENDFD, &fd)); - NUTS_TRUE(fd >= 0); - - // Not writable before connect. - NUTS_TRUE(nuts_poll_fd(fd) == false); - - nng_aio_set_msg(aio, msg); - nng_send_aio(req, aio); - for (int i = 0; i < 5; i++) { - nng_aio_set_msg(ctx_aio[i], ctx_msg[i]); - nng_ctx_send(ctx[i], ctx_aio[i]); - } - NUTS_SLEEP(50); // so everything is queued steady state - - NUTS_MARRY(req, rep); - - // It should not be writable now. - NUTS_TRUE(nuts_poll_fd(fd) == false); - - NUTS_PASS(nng_recvmsg(rep, &msg, 0)); - nng_msg_free(msg); - - // Still not writeable... - NUTS_TRUE(nuts_poll_fd(fd) == false); - for (int i = 0; i < 5; i++) { - NUTS_PASS(nng_recvmsg(rep, &msg, 0)); - nng_msg_free(msg); - } - // It can take a little bit of time for the eased back-pressure - // to reflect across the network. - NUTS_SLEEP(100); - - // Should be come writeable now... - NUTS_TRUE(nuts_poll_fd(fd) == true); - - for (int i = 0; i < 5; i++) { - nng_aio_free(ctx_aio[i]); - } - nng_aio_free(aio); - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -void -test_req_poll_multi_pipe(void) -{ - int fd; - nng_socket req; - nng_socket rep1; - nng_socket rep2; - - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_rep0_open(&rep1)); - NUTS_PASS(nng_rep0_open(&rep2)); - NUTS_PASS(nng_socket_set_int(req, NNG_OPT_SENDBUF, 1)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - - NUTS_PASS(nng_socket_get_int(req, NNG_OPT_SENDFD, &fd)); - NUTS_TRUE(fd >= 0); - - // Not writable before connect. - NUTS_TRUE(nuts_poll_fd(fd) == false); - - NUTS_MARRY(req, rep1); - NUTS_MARRY(req, rep2); - - NUTS_TRUE(nuts_poll_fd(fd) == true); - NUTS_SEND(req, "ONE"); - NUTS_TRUE(nuts_poll_fd(fd) == true); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep1); - NUTS_CLOSE(rep2); -} - -void -test_req_poll_readable(void) -{ - int fd; - nng_socket req; - nng_socket rep; - nng_msg * msg; - - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_rep0_open(&rep)); - NUTS_PASS(nng_socket_get_int(req, NNG_OPT_RECVFD, &fd)); - NUTS_TRUE(fd >= 0); - - // Not readable if not connected! - NUTS_TRUE(nuts_poll_fd(fd) == false); - - // Even after connect (no message yet) - NUTS_MARRY(req, rep); - NUTS_TRUE(nuts_poll_fd(fd) == false); - - // But once we send messages, it is. - // We have to send a request, in order to send a reply. - - NUTS_PASS(nng_msg_alloc(&msg, 0)); - NUTS_PASS(nng_msg_append(msg, "xyz", 3)); - NUTS_PASS(nng_sendmsg(req, msg, 0)); - NUTS_PASS(nng_recvmsg(rep, &msg, 0)); // recv on rep - NUTS_PASS(nng_sendmsg(rep, msg, 0)); // echo it back - NUTS_SLEEP(200); // give time for message to arrive - - NUTS_TRUE(nuts_poll_fd(fd) == true); - - // and receiving makes it no longer ready - NUTS_PASS(nng_recvmsg(req, &msg, 0)); - nng_msg_free(msg); - NUTS_TRUE(nuts_poll_fd(fd) == false); - - // TODO verify unsolicited response - - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -static void -test_req_ctx_no_poll(void) -{ - int fd; - nng_socket req; - nng_ctx ctx; - - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_ctx_open(&ctx, req)); - NUTS_FAIL(nng_ctx_getopt_int(ctx, NNG_OPT_SENDFD, &fd), NNG_ENOTSUP); - NUTS_FAIL(nng_ctx_getopt_int(ctx, NNG_OPT_RECVFD, &fd), NNG_ENOTSUP); - NUTS_PASS(nng_ctx_close(ctx)); - NUTS_CLOSE(req); -} - -static void -test_req_ctx_send_queued(void) -{ - nng_socket req; - nng_socket rep; - nng_ctx ctx[3]; - nng_aio * aio[3]; - nng_msg * msg[3]; - - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_rep0_open(&rep)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, 100)); - - for (int i = 0; i < 3; i++) { - NUTS_PASS(nng_ctx_open(&ctx[i], req)); - NUTS_PASS(nng_aio_alloc(&aio[i], NULL, NULL)); - NUTS_PASS(nng_msg_alloc(&msg[i], 0)); - } - - for (int i = 0; i < 3; i++) { - nng_aio_set_msg(aio[i], msg[i]); - nng_ctx_send(ctx[i], aio[i]); - } - - NUTS_MARRY(req, rep); - - NUTS_SLEEP(50); // Only to ensure stuff queues up - for (int i = 0; i < 3; i++) { - nng_msg *m; - NUTS_PASS(nng_recvmsg(rep, &m, 0)); - nng_msg_free(m); - } - - NUTS_CLOSE(req); - NUTS_CLOSE(rep); - for (int i = 0; i < 3; i++) { - nng_aio_wait(aio[i]); - NUTS_PASS(nng_aio_result(aio[i])); - nng_aio_free(aio[i]); - } -} - -static void -test_req_ctx_send_close(void) -{ - nng_socket req; - nng_ctx ctx[3]; - nng_aio * aio[3]; - nng_msg * msg[3]; - - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - - for (int i = 0; i < 3; i++) { - NUTS_PASS(nng_ctx_open(&ctx[i], req)); - NUTS_PASS(nng_aio_alloc(&aio[i], NULL, NULL)); - NUTS_PASS(nng_msg_alloc(&msg[i], 0)); - } - - for (int i = 0; i < 3; i++) { - nng_aio_set_msg(aio[i], msg[i]); - nng_ctx_send(ctx[i], aio[i]); - } - - for (int i = 0; i < 3; i++) { - nng_ctx_close(ctx[i]); - } - - for (int i = 0; i < 3; i++) { - nng_aio_wait(aio[i]); - NUTS_FAIL(nng_aio_result(aio[i]), NNG_ECLOSED); - nng_aio_free(aio[i]); - nng_msg_free(msg[i]); - } - NUTS_CLOSE(req); -} - -static void -test_req_ctx_send_abort(void) -{ - nng_socket req; - nng_ctx ctx[3]; - nng_aio * aio[3]; - nng_msg * msg[3]; - - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - - for (int i = 0; i < 3; i++) { - NUTS_PASS(nng_ctx_open(&ctx[i], req)); - NUTS_PASS(nng_aio_alloc(&aio[i], NULL, NULL)); - NUTS_PASS(nng_msg_alloc(&msg[i], 0)); - } - - for (int i = 0; i < 3; i++) { - nng_aio_set_msg(aio[i], msg[i]); - nng_ctx_send(ctx[i], aio[i]); - } - - for (int i = 0; i < 3; i++) { - nng_aio_abort(aio[i], NNG_ECANCELED); - } - - for (int i = 0; i < 3; i++) { - nng_aio_wait(aio[i]); - NUTS_FAIL(nng_aio_result(aio[i]), NNG_ECANCELED); - nng_aio_free(aio[i]); - nng_msg_free(msg[i]); - } - NUTS_CLOSE(req); -} - -static void -test_req_ctx_send_twice(void) -{ - nng_socket req; - nng_ctx ctx; - nng_aio * aio[2]; - nng_msg * msg[2]; - - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_ctx_open(&ctx, req)); - - for (int i = 0; i < 2; i++) { - NUTS_PASS(nng_aio_alloc(&aio[i], NULL, NULL)); - NUTS_PASS(nng_msg_alloc(&msg[i], 0)); - } - - for (int i = 0; i < 2; i++) { - nng_aio_set_msg(aio[i], msg[i]); - nng_ctx_send(ctx, aio[i]); - NUTS_SLEEP(50); - } - - NUTS_CLOSE(req); - nng_aio_wait(aio[0]); - nng_aio_wait(aio[1]); - NUTS_FAIL(nng_aio_result(aio[0]), NNG_ECANCELED); - NUTS_FAIL(nng_aio_result(aio[1]), NNG_ECLOSED); - - for (int i = 0; i < 2; i++) { - nng_aio_free(aio[i]); - nng_msg_free(msg[i]); - } -} - -static void -test_req_ctx_recv_nonblock(void) -{ - nng_socket req; - nng_socket rep; - nng_ctx ctx; - nng_aio * aio; - nng_msg * msg; - - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_rep0_open(&rep)); - NUTS_PASS(nng_ctx_open(&ctx, req)); - NUTS_PASS(nng_aio_alloc(&aio, NULL, NULL)); - NUTS_PASS(nng_msg_alloc(&msg, 0)); - - NUTS_MARRY(req, rep); - - nng_aio_set_msg(aio, msg); - nng_ctx_send(ctx, aio); - nng_aio_wait(aio); - NUTS_PASS(nng_aio_result(aio)); - nng_aio_set_timeout(aio, 0); // Instant timeout - nng_ctx_recv(ctx, aio); - - nng_aio_wait(aio); - NUTS_FAIL(nng_aio_result(aio), NNG_ETIMEDOUT); - NUTS_CLOSE(req); - NUTS_CLOSE(rep); - nng_aio_free(aio); -} - -static void -test_req_ctx_send_nonblock(void) -{ - nng_socket req; - nng_ctx ctx; - nng_aio * aio; - nng_msg * msg; - - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_ctx_open(&ctx, req)); - NUTS_PASS(nng_aio_alloc(&aio, NULL, NULL)); - NUTS_PASS(nng_msg_alloc(&msg, 0)); - - nng_aio_set_msg(aio, msg); - nng_aio_set_timeout(aio, 0); // Instant timeout - nng_ctx_send(ctx, aio); - nng_aio_wait(aio); - NUTS_FAIL(nng_aio_result(aio), NNG_ETIMEDOUT); - NUTS_CLOSE(req); - nng_aio_free(aio); - nng_msg_free(msg); -} - -static void -test_req_ctx_recv_close_socket(void) -{ - nng_socket req; - nng_socket rep; - nng_ctx ctx; - nng_aio * aio; - nng_msg * m; - - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_rep0_open(&rep)); - NUTS_PASS(nng_ctx_open(&ctx, req)); - NUTS_PASS(nng_aio_alloc(&aio, NULL, NULL)); - NUTS_MARRY(req, rep); - NUTS_PASS(nng_msg_alloc(&m, 0)); - nng_aio_set_msg(aio, m); - nng_ctx_send(ctx, aio); - nng_aio_wait(aio); - NUTS_PASS(nng_aio_result(aio)); - - nng_ctx_recv(ctx, aio); - nng_close(req); - - NUTS_FAIL(nng_aio_result(aio), NNG_ECLOSED); - nng_aio_free(aio); - NUTS_CLOSE(rep); -} - -static void -test_req_validate_peer(void) -{ - nng_socket s1, s2; - nng_stat * stats; - nng_stat * reject; - char * addr; - - NUTS_ADDR(addr, "inproc"); - - NUTS_PASS(nng_req0_open(&s1)); - NUTS_PASS(nng_req0_open(&s2)); - - NUTS_PASS(nng_listen(s1, addr, NULL, 0)); - NUTS_PASS(nng_dial(s2, addr, NULL, NNG_FLAG_NONBLOCK)); - - NUTS_SLEEP(100); - NUTS_PASS(nng_stats_get(&stats)); - - NUTS_TRUE(stats != NULL); - NUTS_TRUE((reject = nng_stat_find_socket(stats, s1)) != NULL); - NUTS_TRUE((reject = nng_stat_find(reject, "reject")) != NULL); - - NUTS_TRUE(nng_stat_type(reject) == NNG_STAT_COUNTER); - NUTS_TRUE(nng_stat_value(reject) > 0); - - NUTS_CLOSE(s1); - NUTS_CLOSE(s2); - nng_stats_free(stats); -} - -NUTS_TESTS = { - { "req identity", test_req_identity }, - { "req ttl option", test_req_ttl_option }, - { "req resend option", test_req_resend_option }, - { "req recv bad state", test_req_recv_bad_state }, - { "req recv garbage", test_req_recv_garbage }, - { "req rep exchange", test_req_rep_exchange }, - { "req resend", test_req_resend }, - { "req resend disconnect", test_req_resend_disconnect }, - { "req disconnect no retry", test_req_disconnect_no_retry }, - { "req disconnect abort", test_req_disconnect_abort }, - { "req resend reconnect", test_req_resend_reconnect }, - { "req cancel", test_req_cancel }, - { "req cancel abort recv", test_req_cancel_abort_recv }, - { "req cancel post recv", test_req_cancel_post_recv }, - { "req poll writable", test_req_poll_writeable }, - { "req poll contention", test_req_poll_contention }, - { "req poll multi pipe", test_req_poll_multi_pipe }, - { "req poll readable", test_req_poll_readable }, - { "req context send queued", test_req_ctx_send_queued }, - { "req context send close", test_req_ctx_send_close }, - { "req context send abort", test_req_ctx_send_abort }, - { "req context send twice", test_req_ctx_send_twice }, - { "req context does not poll", test_req_ctx_no_poll }, - { "req context recv close socket", test_req_ctx_recv_close_socket }, - { "req context recv nonblock", test_req_ctx_recv_nonblock }, - { "req context send nonblock", test_req_ctx_send_nonblock }, - { "req validate peer", test_req_validate_peer }, - { NULL, NULL }, -}; diff --git a/src/protocol/reqrep0/xrep.c b/src/protocol/reqrep0/xrep.c deleted file mode 100644 index 9737c600..00000000 --- a/src/protocol/reqrep0/xrep.c +++ /dev/null @@ -1,432 +0,0 @@ -// -// Copyright 2020 Staysail Systems, Inc. <info@staysail.tech> -// Copyright 2018 Capitar IT Group BV <info@capitar.com> -// -// This software is supplied under the terms of the MIT License, a -// copy of which should be located in the distribution where this -// file was obtained (LICENSE.txt). A copy of the license may also be -// found online at https://opensource.org/licenses/MIT. -// - -#include <string.h> - -#include "core/nng_impl.h" -#include "nng/protocol/reqrep0/rep.h" - -// Response protocol in raw mode. The REP protocol is the "reply" side of a -// request-reply pair. This is useful for building RPC servers, for -// example. - -typedef struct xrep0_pipe xrep0_pipe; -typedef struct xrep0_sock xrep0_sock; - -static void xrep0_sock_getq_cb(void *); -static void xrep0_pipe_getq_cb(void *); -static void xrep0_pipe_putq_cb(void *); -static void xrep0_pipe_send_cb(void *); -static void xrep0_pipe_recv_cb(void *); -static void xrep0_pipe_fini(void *); - -// xrep0_sock is our per-socket protocol private structure. -struct xrep0_sock { - nni_msgq * uwq; - nni_msgq * urq; - nni_mtx lk; - nni_atomic_int ttl; - nni_id_map pipes; - nni_aio aio_getq; -}; - -// xrep0_pipe is our per-pipe protocol private structure. -struct xrep0_pipe { - nni_pipe * pipe; - xrep0_sock *rep; - nni_msgq * sendq; - nni_aio aio_getq; - nni_aio aio_send; - nni_aio aio_recv; - nni_aio aio_putq; -}; - -static void -xrep0_sock_fini(void *arg) -{ - xrep0_sock *s = arg; - - nni_aio_fini(&s->aio_getq); - nni_id_map_fini(&s->pipes); - nni_mtx_fini(&s->lk); -} - -static int -xrep0_sock_init(void *arg, nni_sock *sock) -{ - xrep0_sock *s = arg; - - nni_mtx_init(&s->lk); - nni_aio_init(&s->aio_getq, xrep0_sock_getq_cb, s); - nni_atomic_init(&s->ttl); - nni_atomic_set(&s->ttl, 8); // Per RFC - s->uwq = nni_sock_sendq(sock); - s->urq = nni_sock_recvq(sock); - - nni_id_map_init(&s->pipes, 0, 0, false); - return (0); -} - -static void -xrep0_sock_open(void *arg) -{ - xrep0_sock *s = arg; - - // This starts us retrieving message from the upper write q. - nni_msgq_aio_get(s->uwq, &s->aio_getq); -} - -static void -xrep0_sock_close(void *arg) -{ - xrep0_sock *s = arg; - - nni_aio_close(&s->aio_getq); -} - -static void -xrep0_pipe_stop(void *arg) -{ - xrep0_pipe *p = arg; - - nni_aio_stop(&p->aio_getq); - nni_aio_stop(&p->aio_send); - nni_aio_stop(&p->aio_recv); - nni_aio_stop(&p->aio_putq); -} - -static void -xrep0_pipe_fini(void *arg) -{ - xrep0_pipe *p = arg; - - nni_aio_fini(&p->aio_getq); - nni_aio_fini(&p->aio_send); - nni_aio_fini(&p->aio_recv); - nni_aio_fini(&p->aio_putq); - nni_msgq_fini(p->sendq); -} - -static int -xrep0_pipe_init(void *arg, nni_pipe *pipe, void *s) -{ - xrep0_pipe *p = arg; - int rv; - - nni_aio_init(&p->aio_getq, xrep0_pipe_getq_cb, p); - nni_aio_init(&p->aio_send, xrep0_pipe_send_cb, p); - nni_aio_init(&p->aio_recv, xrep0_pipe_recv_cb, p); - nni_aio_init(&p->aio_putq, xrep0_pipe_putq_cb, p); - - p->pipe = pipe; - p->rep = s; - - // We want a pretty deep send queue on pipes. The rationale here is - // that the send rate will be mitigated by the receive rate. - // If a slow pipe (req pipe not reading its own responses!?) - // comes up, then we will start discarding its replies eventually, - // but it takes some time. It would be poor form for a peer to - // smash us with requests, but be unable to handle replies faster - // than we can forward them. If they do that, their replies get - // dropped. (From a DDoS perspective, it might be nice in the - // future if we had a way to exert back pressure to the send side -- - // essentially don't let peers send requests faster than they are - // willing to receive replies. Something to think about for the - // future.) - if ((rv = nni_msgq_init(&p->sendq, 64)) != 0) { - xrep0_pipe_fini(p); - return (rv); - } - return (0); -} - -static int -xrep0_pipe_start(void *arg) -{ - xrep0_pipe *p = arg; - xrep0_sock *s = p->rep; - int rv; - - if (nni_pipe_peer(p->pipe) != NNG_REP0_PEER) { - // Peer protocol mismatch. - return (NNG_EPROTO); - } - - nni_mtx_lock(&s->lk); - rv = nni_id_set(&s->pipes, nni_pipe_id(p->pipe), p); - nni_mtx_unlock(&s->lk); - if (rv != 0) { - return (rv); - } - - nni_msgq_aio_get(p->sendq, &p->aio_getq); - nni_pipe_recv(p->pipe, &p->aio_recv); - return (0); -} - -static void -xrep0_pipe_close(void *arg) -{ - xrep0_pipe *p = arg; - xrep0_sock *s = p->rep; - - nni_aio_close(&p->aio_getq); - nni_aio_close(&p->aio_send); - nni_aio_close(&p->aio_recv); - nni_aio_close(&p->aio_putq); - nni_msgq_close(p->sendq); - - nni_mtx_lock(&s->lk); - nni_id_remove(&s->pipes, nni_pipe_id(p->pipe)); - nni_mtx_unlock(&s->lk); -} - -static void -xrep0_sock_getq_cb(void *arg) -{ - xrep0_sock *s = arg; - nni_msgq * uwq = s->uwq; - nni_msg * msg; - uint32_t id; - xrep0_pipe *p; - - // This watches for messages from the upper write queue, - // extracts the destination pipe, and forwards it to the appropriate - // destination pipe via a separate queue. This prevents a single bad - // or slow pipe from gumming up the works for the entire socket. - - if (nni_aio_result(&s->aio_getq) != 0) { - // Closed socket? - return; - } - - msg = nni_aio_get_msg(&s->aio_getq); - nni_aio_set_msg(&s->aio_getq, NULL); - - // We yank the outgoing pipe id from the header - if (nni_msg_header_len(msg) < 4) { - nni_msg_free(msg); - - // Look for another message on the upper write queue. - nni_msgq_aio_get(uwq, &s->aio_getq); - return; - } - - id = nni_msg_header_trim_u32(msg); - - // Look for the pipe, and attempt to put the message there - // (non-blocking) if we can. If we can't for any reason, then we - // free the message. - nni_mtx_lock(&s->lk); - if (((p = nni_id_get(&s->pipes, id)) == NULL) || - (nni_msgq_tryput(p->sendq, msg) != 0)) { - nni_msg_free(msg); - } - nni_mtx_unlock(&s->lk); - - // Now look for another message on the upper write queue. - nni_msgq_aio_get(uwq, &s->aio_getq); -} - -static void -xrep0_pipe_getq_cb(void *arg) -{ - xrep0_pipe *p = arg; - - if (nni_aio_result(&p->aio_getq) != 0) { - nni_pipe_close(p->pipe); - return; - } - - nni_aio_set_msg(&p->aio_send, nni_aio_get_msg(&p->aio_getq)); - nni_aio_set_msg(&p->aio_getq, NULL); - - nni_pipe_send(p->pipe, &p->aio_send); -} - -static void -xrep0_pipe_send_cb(void *arg) -{ - xrep0_pipe *p = arg; - - if (nni_aio_result(&p->aio_send) != 0) { - nni_msg_free(nni_aio_get_msg(&p->aio_send)); - nni_aio_set_msg(&p->aio_send, NULL); - nni_pipe_close(p->pipe); - return; - } - - nni_msgq_aio_get(p->sendq, &p->aio_getq); -} - -static void -xrep0_pipe_recv_cb(void *arg) -{ - xrep0_pipe *p = arg; - xrep0_sock *s = p->rep; - nni_msg * msg; - int hops; - int ttl; - - if (nni_aio_result(&p->aio_recv) != 0) { - nni_pipe_close(p->pipe); - return; - } - - ttl = nni_atomic_get(&s->ttl); - - msg = nni_aio_get_msg(&p->aio_recv); - nni_aio_set_msg(&p->aio_recv, NULL); - - nni_msg_set_pipe(msg, nni_pipe_id(p->pipe)); - - // Store the pipe id in the header, first thing. - nni_msg_header_append_u32(msg, nni_pipe_id(p->pipe)); - - // Move backtrace from body to header - hops = 1; - for (;;) { - bool end; - uint8_t *body; - if (hops > ttl) { - // This isn't malformed, but it has gone through - // too many hops. Do not disconnect, because we - // can legitimately receive messages with too many - // hops from devices, etc. - goto drop; - } - hops++; - if (nni_msg_len(msg) < 4) { - // Peer is speaking garbage. Kick it. - nni_msg_free(msg); - nni_pipe_close(p->pipe); - return; - } - body = nni_msg_body(msg); - end = ((body[0] & 0x80u) != 0); - if (nni_msg_header_append(msg, body, 4) != 0) { - // Out of memory most likely, but keep going to - // avoid breaking things. - goto drop; - } - nni_msg_trim(msg, 4); - if (end) { - break; - } - } - - // Go ahead and send it up. - nni_aio_set_msg(&p->aio_putq, msg); - nni_msgq_aio_put(s->urq, &p->aio_putq); - return; - -drop: - nni_msg_free(msg); - nni_pipe_recv(p->pipe, &p->aio_recv); -} - -static void -xrep0_pipe_putq_cb(void *arg) -{ - xrep0_pipe *p = arg; - - if (nni_aio_result(&p->aio_putq) != 0) { - nni_msg_free(nni_aio_get_msg(&p->aio_putq)); - nni_aio_set_msg(&p->aio_putq, NULL); - nni_pipe_close(p->pipe); - return; - } - - nni_pipe_recv(p->pipe, &p->aio_recv); -} - -static int -xrep0_sock_set_maxttl(void *arg, const void *buf, size_t sz, nni_opt_type t) -{ - xrep0_sock *s = arg; - int ttl; - int rv; - if ((rv = nni_copyin_int(&ttl, buf, sz, 1, NNI_MAX_MAX_TTL, t)) == 0) { - nni_atomic_set(&s->ttl, ttl); - } - return (rv); -} - -static int -xrep0_sock_get_maxttl(void *arg, void *buf, size_t *szp, nni_opt_type t) -{ - xrep0_sock *s = arg; - return (nni_copyout_int(nni_atomic_get(&s->ttl), buf, szp, t)); -} - -static void -xrep0_sock_send(void *arg, nni_aio *aio) -{ - xrep0_sock *s = arg; - - nni_msgq_aio_put(s->uwq, aio); -} - -static void -xrep0_sock_recv(void *arg, nni_aio *aio) -{ - xrep0_sock *s = arg; - - nni_msgq_aio_get(s->urq, aio); -} - -// This is the global protocol structure -- our linkage to the core. -// This should be the only global non-static symbol in this file. -static nni_proto_pipe_ops xrep0_pipe_ops = { - .pipe_size = sizeof(xrep0_pipe), - .pipe_init = xrep0_pipe_init, - .pipe_fini = xrep0_pipe_fini, - .pipe_start = xrep0_pipe_start, - .pipe_close = xrep0_pipe_close, - .pipe_stop = xrep0_pipe_stop, -}; - -static nni_option xrep0_sock_options[] = { - { - .o_name = NNG_OPT_MAXTTL, - .o_get = xrep0_sock_get_maxttl, - .o_set = xrep0_sock_set_maxttl, - }, - // terminate list - { - .o_name = NULL, - }, -}; - -static nni_proto_sock_ops xrep0_sock_ops = { - .sock_size = sizeof(xrep0_sock), - .sock_init = xrep0_sock_init, - .sock_fini = xrep0_sock_fini, - .sock_open = xrep0_sock_open, - .sock_close = xrep0_sock_close, - .sock_options = xrep0_sock_options, - .sock_send = xrep0_sock_send, - .sock_recv = xrep0_sock_recv, -}; - -static nni_proto xrep0_proto = { - .proto_version = NNI_PROTOCOL_VERSION, - .proto_self = { NNG_REP0_SELF, NNG_REP0_SELF_NAME }, - .proto_peer = { NNG_REP0_PEER, NNG_REP0_PEER_NAME }, - .proto_flags = NNI_PROTO_FLAG_SNDRCV | NNI_PROTO_FLAG_RAW, - .proto_sock_ops = &xrep0_sock_ops, - .proto_pipe_ops = &xrep0_pipe_ops, -}; - -int -nng_rep0_open_raw(nng_socket *sidp) -{ - return (nni_proto_open(sidp, &xrep0_proto)); -} diff --git a/src/protocol/reqrep0/xrep_test.c b/src/protocol/reqrep0/xrep_test.c deleted file mode 100644 index 6f1564eb..00000000 --- a/src/protocol/reqrep0/xrep_test.c +++ /dev/null @@ -1,434 +0,0 @@ -// -// Copyright 2020 Staysail Systems, Inc. <info@staysail.tech> -// -// This software is supplied under the terms of the MIT License, a -// copy of which should be located in the distribution where this -// file was obtained (LICENSE.txt). A copy of the license may also be -// found online at https://opensource.org/licenses/MIT. -// - -#include <nuts.h> - -static void -test_xrep_identity(void) -{ - nng_socket s; - int p1, p2; - char * n1; - char * n2; - - NUTS_PASS(nng_rep0_open_raw(&s)); - NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PROTO, &p1)); - NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PEER, &p2)); - NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PROTONAME, &n1)); - NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PEERNAME, &n2)); - NUTS_CLOSE(s); - NUTS_TRUE(p1 == NNG_REP0_SELF); - NUTS_TRUE(p2 == NNG_REP0_PEER); - NUTS_MATCH(n1, NNG_REP0_SELF_NAME); - NUTS_MATCH(n2, NNG_REP0_PEER_NAME); - nng_strfree(n1); - nng_strfree(n2); -} - -static void -test_xrep_raw(void) -{ - nng_socket s; - bool b; - - NUTS_PASS(nng_rep0_open_raw(&s)); - NUTS_PASS(nng_socket_get_bool(s, NNG_OPT_RAW, &b)); - NUTS_TRUE(b); - NUTS_CLOSE(s); -} - -static void -test_xrep_no_context(void) -{ - nng_socket s; - nng_ctx ctx; - - NUTS_PASS(nng_rep0_open_raw(&s)); - NUTS_FAIL(nng_ctx_open(&ctx, s), NNG_ENOTSUP); - NUTS_CLOSE(s); -} - -static void -test_xrep_poll_writeable(void) -{ - int fd; - nng_socket req; - nng_socket rep; - - NUTS_PASS(nng_rep0_open_raw(&rep)); - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_socket_get_int(rep, NNG_OPT_SENDFD, &fd)); - NUTS_TRUE(fd >= 0); - - // We are always writeable, even before connect. This is so that - // back-pressure from a bad peer can't trash others. We assume - // that peers won't send us requests faster than they can consume - // the answers. If they do, they will lose their answers. - NUTS_TRUE(nuts_poll_fd(fd) == true); - - NUTS_MARRY(req, rep); - - // Now it's writable. - NUTS_TRUE(nuts_poll_fd(fd) == true); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -static void -test_xrep_poll_readable(void) -{ - int fd; - nng_socket req; - nng_socket rep; - nng_msg * msg; - - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_rep0_open_raw(&rep)); - NUTS_PASS(nng_socket_get_int(rep, NNG_OPT_RECVFD, &fd)); - NUTS_TRUE(fd >= 0); - - // Not readable if not connected! - NUTS_TRUE(nuts_poll_fd(fd) == false); - - // Even after connect (no message yet) - NUTS_MARRY(req, rep); - NUTS_TRUE(nuts_poll_fd(fd) == false); - - // But once we send messages, it is. - // We have to send a request, in order to send a reply. - NUTS_SEND(req, "abc"); - NUTS_SLEEP(100); - - NUTS_TRUE(nuts_poll_fd(fd) == true); - - // and receiving makes it no longer ready - NUTS_PASS(nng_recvmsg(rep, &msg, 0)); - nng_msg_free(msg); - NUTS_TRUE(nuts_poll_fd(fd) == false); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -static void -test_xrep_validate_peer(void) -{ - nng_socket s1, s2; - nng_stat * stats; - nng_stat * reject; - char *addr; - - NUTS_ADDR(addr, "inproc"); - - NUTS_PASS(nng_rep0_open_raw(&s1)); - NUTS_PASS(nng_rep0_open(&s2)); - - NUTS_PASS(nng_listen(s1, addr, NULL, 0)); - NUTS_PASS(nng_dial(s2, addr, NULL, NNG_FLAG_NONBLOCK)); - - NUTS_SLEEP(100); - NUTS_PASS(nng_stats_get(&stats)); - - NUTS_TRUE(stats != NULL); - NUTS_TRUE((reject = nng_stat_find_socket(stats, s1)) != NULL); - NUTS_TRUE((reject = nng_stat_find(reject, "reject")) != NULL); - - NUTS_TRUE(nng_stat_type(reject) == NNG_STAT_COUNTER); - NUTS_TRUE(nng_stat_value(reject) > 0); - - NUTS_PASS(nng_close(s1)); - NUTS_PASS(nng_close(s2)); - nng_stats_free(stats); -} - -static void -test_xrep_close_pipe_before_send(void) -{ - nng_socket rep; - nng_socket req; - nng_pipe p; - nng_aio * aio1; - nng_msg * m; - - NUTS_PASS(nng_rep0_open_raw(&rep)); - NUTS_PASS(nng_req0_open(&req)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_aio_alloc(&aio1, NULL, NULL)); - - NUTS_MARRY(req, rep); - NUTS_SEND(req, "test"); - - nng_recv_aio(rep, aio1); - nng_aio_wait(aio1); - NUTS_PASS(nng_aio_result(aio1)); - NUTS_TRUE((m = nng_aio_get_msg(aio1)) != NULL); - p = nng_msg_get_pipe(m); - NUTS_PASS(nng_pipe_close(p)); - NUTS_PASS(nng_sendmsg(rep, m, 0)); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep); - nng_aio_free(aio1); -} - -static void -test_xrep_close_pipe_during_send(void) -{ - nng_socket rep; - nng_socket req; - nng_pipe p; - nng_msg * m; - - NUTS_PASS(nng_rep0_open_raw(&rep)); - NUTS_PASS(nng_req0_open_raw(&req)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 200)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_int(rep, NNG_OPT_SENDBUF, 20)); - NUTS_PASS(nng_socket_set_int(rep, NNG_OPT_RECVBUF, 20)); - NUTS_PASS(nng_socket_set_int(req, NNG_OPT_SENDBUF, 20)); - NUTS_PASS(nng_socket_set_int(req, NNG_OPT_RECVBUF, 1)); - - NUTS_MARRY(req, rep); - - NUTS_PASS(nng_msg_alloc(&m, 4)); - NUTS_PASS(nng_msg_append_u32(m, (unsigned) 0x81000000u)); - NUTS_PASS(nng_sendmsg(req, m, 0)); - NUTS_PASS(nng_recvmsg(rep, &m, 0)); - p = nng_msg_get_pipe(m); - nng_msg_free(m); - - for (int i = 0; i < 100; i++) { - NUTS_PASS(nng_msg_alloc(&m, 4)); - NUTS_PASS(nng_msg_header_append_u32(m, nng_pipe_id(p))); - NUTS_PASS( - nng_msg_header_append_u32(m, (unsigned) i | 0x80000000u)); - // xrep does not exert back-pressure - NUTS_PASS(nng_sendmsg(rep, m, 0)); - } - NUTS_PASS(nng_pipe_close(p)); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -static void -test_xrep_close_during_recv(void) -{ - nng_socket rep; - nng_socket req; - nng_msg * m; - - NUTS_PASS(nng_rep0_open_raw(&rep)); - NUTS_PASS(nng_req0_open_raw(&req)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 100)); - NUTS_PASS(nng_socket_set_int(rep, NNG_OPT_RECVBUF, 5)); - NUTS_PASS(nng_socket_set_int(req, NNG_OPT_SENDBUF, 20)); - - NUTS_MARRY(req, rep); - - for (unsigned i = 0; i < 100; i++) { - int rv; - NUTS_PASS(nng_msg_alloc(&m, 4)); - NUTS_PASS(nng_msg_header_append_u32(m, i | 0x80000000u)); - rv = nng_sendmsg(req, m, 0); - if (rv == NNG_ETIMEDOUT) { - nng_msg_free(m); - break; - } - } - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -static void -test_xrep_recv_aio_stopped(void) -{ - nng_socket rep; - nng_aio * aio; - - NUTS_PASS(nng_rep0_open_raw(&rep)); - NUTS_PASS(nng_aio_alloc(&aio, NULL, NULL)); - - nng_aio_stop(aio); - nng_recv_aio(rep, aio); - nng_aio_wait(aio); - NUTS_FAIL(nng_aio_result(aio), NNG_ECANCELED); - NUTS_CLOSE(rep); - nng_aio_free(aio); -} - -static void -test_xrep_send_no_header(void) -{ - nng_socket rep; - nng_socket req; - nng_msg * m; - - NUTS_PASS(nng_req0_open_raw(&req)); - NUTS_PASS(nng_rep0_open_raw(&rep)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, 100)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_RECVTIMEO, 100)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - - NUTS_MARRY(req, rep); - - NUTS_PASS(nng_msg_alloc(&m, 4)); - NUTS_PASS(nng_sendmsg(rep, m, 0)); - NUTS_FAIL(nng_recvmsg(rep, &m, 0), NNG_ETIMEDOUT); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -static void -test_xrep_recv_garbage(void) -{ - nng_socket rep; - nng_socket req; - nng_msg * m; - - NUTS_PASS(nng_rep0_open_raw(&rep)); - NUTS_PASS(nng_req0_open_raw(&req)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, 100)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 100)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - - NUTS_MARRY(req, rep); - - NUTS_PASS(nng_msg_alloc(&m, 4)); - NUTS_PASS(nng_msg_append_u32(m, 1u)); - NUTS_PASS(nng_sendmsg(req, m, 0)); - NUTS_FAIL(nng_recvmsg(rep, &m, 0), NNG_ETIMEDOUT); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -static void -test_xrep_ttl_option(void) -{ - nng_socket rep; - int v; - bool b; - size_t sz; - const char *opt = NNG_OPT_MAXTTL; - - NUTS_PASS(nng_rep0_open_raw(&rep)); - - NUTS_PASS(nng_socket_set_int(rep, opt, 1)); - NUTS_FAIL(nng_socket_set_int(rep, opt, 0), NNG_EINVAL); - NUTS_FAIL(nng_socket_set_int(rep, opt, -1), NNG_EINVAL); - NUTS_FAIL(nng_socket_set_int(rep, opt, 16), NNG_EINVAL); - NUTS_FAIL(nng_socket_set_int(rep, opt, 256), NNG_EINVAL); - NUTS_PASS(nng_socket_set_int(rep, opt, 3)); - NUTS_PASS(nng_socket_get_int(rep, opt, &v)); - NUTS_TRUE(v == 3); - v = 0; - sz = sizeof(v); - NUTS_PASS(nng_socket_get(rep, opt, &v, &sz)); - NUTS_TRUE(v == 3); - NUTS_TRUE(sz == sizeof(v)); - - NUTS_TRUE(nng_socket_set(rep, opt, "", 1) == NNG_EINVAL); - sz = 1; - NUTS_TRUE(nng_socket_get(rep, opt, &v, &sz) == NNG_EINVAL); - NUTS_TRUE(nng_socket_set_bool(rep, opt, true) == NNG_EBADTYPE); - NUTS_TRUE(nng_socket_get_bool(rep, opt, &b) == NNG_EBADTYPE); - - NUTS_TRUE(nng_close(rep) == 0); -} - -static void -test_xrep_ttl_drop(void) -{ - nng_socket rep; - nng_socket req; - nng_msg * m; - - NUTS_PASS(nng_rep0_open_raw(&rep)); - NUTS_PASS(nng_req0_open_raw(&req)); - NUTS_PASS(nng_socket_set_int(rep, NNG_OPT_MAXTTL, 3)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, 200)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - - NUTS_MARRY(req, rep); - - // Send messages. Note that xrep implicitly adds a hop on receive. - - NUTS_PASS(nng_msg_alloc(&m, 0)); - NUTS_PASS(nng_msg_append_u32(m, 1u)); // 2 hops - NUTS_PASS(nng_msg_append_u32(m, 0x80000001u)); - NUTS_PASS(nng_msg_append(m, "PASS1", 6)); - NUTS_PASS(nng_sendmsg(req, m, 0)); - - NUTS_PASS(nng_msg_alloc(&m, 0)); - NUTS_PASS(nng_msg_append_u32(m, 1u)); // 4 hops -- discard! - NUTS_PASS(nng_msg_append_u32(m, 2u)); - NUTS_PASS(nng_msg_append_u32(m, 3u)); - NUTS_PASS(nng_msg_append_u32(m, 0x80000002u)); - NUTS_PASS(nng_msg_append(m, "FAIL2", 6)); - NUTS_PASS(nng_sendmsg(req, m, 0)); - - NUTS_PASS(nng_msg_alloc(&m, 0)); - NUTS_PASS(nng_msg_append_u32(m, 1u)); // 3 hops - passes - NUTS_PASS(nng_msg_append_u32(m, 2u)); - NUTS_PASS(nng_msg_append_u32(m, 0x80000003u)); - NUTS_PASS(nng_msg_append(m, "PASS3", 6)); - NUTS_PASS(nng_sendmsg(req, m, 0)); - - NUTS_PASS(nng_msg_alloc(&m, 0)); - NUTS_PASS(nng_msg_append_u32(m, 1u)); // 4 hops -- discard! - NUTS_PASS(nng_msg_append_u32(m, 2u)); - NUTS_PASS(nng_msg_append_u32(m, 3u)); - NUTS_PASS(nng_msg_append_u32(m, 0x80000003u)); - NUTS_PASS(nng_msg_append(m, "FAIL4", 6)); - NUTS_PASS(nng_sendmsg(req, m, 0)); - - // So on receive we should see 80000001 and 80000003. - NUTS_PASS(nng_recvmsg(rep, &m, 0)); - NUTS_TRUE(nng_msg_header_len(m) == 12); - NUTS_TRUE(nng_msg_len(m) == 6); - NUTS_TRUE(strcmp(nng_msg_body(m), "PASS1") == 0); - nng_msg_free(m); - - NUTS_PASS(nng_recvmsg(rep, &m, 0)); - NUTS_TRUE(nng_msg_header_len(m) == 16); // 3 hops + ID - NUTS_TRUE(nng_msg_len(m) == 6); - NUTS_TRUE(strcmp(nng_msg_body(m), "PASS3") == 0); - nng_msg_free(m); - - NUTS_FAIL(nng_recvmsg(rep, &m, 0), NNG_ETIMEDOUT); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -NUTS_TESTS = { - { "xrep identity", test_xrep_identity }, - { "xrep raw", test_xrep_raw }, - { "xrep no context", test_xrep_no_context }, - { "xrep poll readable", test_xrep_poll_readable }, - { "xrep poll writable", test_xrep_poll_writeable }, - { "xrep validate peer", test_xrep_validate_peer }, - { "xrep close pipe before send", test_xrep_close_pipe_before_send }, - { "xrep close pipe during send", test_xrep_close_pipe_during_send }, - { "xrep close during recv", test_xrep_close_during_recv }, - { "xrep recv aio stopped", test_xrep_recv_aio_stopped }, - { "xrep send no header", test_xrep_send_no_header }, - { "xrep recv garbage", test_xrep_recv_garbage }, - { "xrep ttl option", test_xrep_ttl_option }, - { "xrep ttl drop", test_xrep_ttl_drop }, - { NULL, NULL }, -}; diff --git a/src/protocol/reqrep0/xreq.c b/src/protocol/reqrep0/xreq.c deleted file mode 100644 index bcb218bf..00000000 --- a/src/protocol/reqrep0/xreq.c +++ /dev/null @@ -1,319 +0,0 @@ -// -// Copyright 2020 Staysail Systems, Inc. <info@staysail.tech> -// Copyright 2018 Capitar IT Group BV <info@capitar.com> -// -// This software is supplied under the terms of the MIT License, a -// copy of which should be located in the distribution where this -// file was obtained (LICENSE.txt). A copy of the license may also be -// found online at https://opensource.org/licenses/MIT. -// - -#include <stdio.h> - -#include "core/nng_impl.h" -#include "nng/protocol/reqrep0/req.h" - -// Request protocol. The REQ protocol is the "request" side of a -// request-reply pair. This is useful for building RPC clients, for example. - -typedef struct xreq0_pipe xreq0_pipe; -typedef struct xreq0_sock xreq0_sock; - -// An xreq0_sock is our per-socket protocol private structure. -struct xreq0_sock { - nni_msgq * uwq; - nni_msgq * urq; - nni_atomic_int ttl; -}; - -// A req0_pipe is our per-pipe protocol private structure. -struct xreq0_pipe { - nni_pipe * pipe; - xreq0_sock *req; - nni_aio aio_getq; - nni_aio aio_send; - nni_aio aio_recv; - nni_aio aio_putq; -}; - -static void xreq0_sock_fini(void *); -static void xreq0_getq_cb(void *); -static void xreq0_send_cb(void *); -static void xreq0_recv_cb(void *); -static void xreq0_putq_cb(void *); - -static int -xreq0_sock_init(void *arg, nni_sock *sock) -{ - xreq0_sock *s = arg; - - nni_atomic_init(&s->ttl); - nni_atomic_set(&s->ttl, 8); - s->uwq = nni_sock_sendq(sock); - s->urq = nni_sock_recvq(sock); - - return (0); -} - -static void -xreq0_sock_open(void *arg) -{ - NNI_ARG_UNUSED(arg); -} - -static void -xreq0_sock_close(void *arg) -{ - NNI_ARG_UNUSED(arg); -} - -static void -xreq0_sock_fini(void *arg) -{ - NNI_ARG_UNUSED(arg); -} - -static void -xreq0_pipe_stop(void *arg) -{ - xreq0_pipe *p = arg; - - nni_aio_stop(&p->aio_getq); - nni_aio_stop(&p->aio_putq); - nni_aio_stop(&p->aio_recv); - nni_aio_stop(&p->aio_send); -} - -static void -xreq0_pipe_fini(void *arg) -{ - xreq0_pipe *p = arg; - - nni_aio_fini(&p->aio_getq); - nni_aio_fini(&p->aio_putq); - nni_aio_fini(&p->aio_recv); - nni_aio_fini(&p->aio_send); -} - -static int -xreq0_pipe_init(void *arg, nni_pipe *pipe, void *s) -{ - xreq0_pipe *p = arg; - - nni_aio_init(&p->aio_getq, xreq0_getq_cb, p); - nni_aio_init(&p->aio_putq, xreq0_putq_cb, p); - nni_aio_init(&p->aio_recv, xreq0_recv_cb, p); - nni_aio_init(&p->aio_send, xreq0_send_cb, p); - - p->pipe = pipe; - p->req = s; - return (0); -} - -static int -xreq0_pipe_start(void *arg) -{ - xreq0_pipe *p = arg; - xreq0_sock *s = p->req; - - if (nni_pipe_peer(p->pipe) != NNG_REQ0_PEER) { - return (NNG_EPROTO); - } - - nni_msgq_aio_get(s->uwq, &p->aio_getq); - nni_pipe_recv(p->pipe, &p->aio_recv); - return (0); -} - -static void -xreq0_pipe_close(void *arg) -{ - xreq0_pipe *p = arg; - - nni_aio_close(&p->aio_getq); - nni_aio_close(&p->aio_putq); - nni_aio_close(&p->aio_recv); - nni_aio_close(&p->aio_send); -} - -// For raw mode we can just let the pipes "contend" via get queue to get a -// message from the upper write queue. The msg queue implementation -// actually provides ordering, so load will be spread automatically. -// (NB: We may have to revise this in the future if we want to provide some -// kind of priority.) - -static void -xreq0_getq_cb(void *arg) -{ - xreq0_pipe *p = arg; - - if (nni_aio_result(&p->aio_getq) != 0) { - nni_pipe_close(p->pipe); - return; - } - - nni_aio_set_msg(&p->aio_send, nni_aio_get_msg(&p->aio_getq)); - nni_aio_set_msg(&p->aio_getq, NULL); - - nni_pipe_send(p->pipe, &p->aio_send); -} - -static void -xreq0_send_cb(void *arg) -{ - xreq0_pipe *p = arg; - - if (nni_aio_result(&p->aio_send) != 0) { - nni_msg_free(nni_aio_get_msg(&p->aio_send)); - nni_aio_set_msg(&p->aio_send, NULL); - nni_pipe_close(p->pipe); - return; - } - - // Sent a message so we just need to look for another one. - nni_msgq_aio_get(p->req->uwq, &p->aio_getq); -} - -static void -xreq0_putq_cb(void *arg) -{ - xreq0_pipe *p = arg; - - if (nni_aio_result(&p->aio_putq) != 0) { - nni_msg_free(nni_aio_get_msg(&p->aio_putq)); - nni_aio_set_msg(&p->aio_putq, NULL); - nni_pipe_close(p->pipe); - return; - } - nni_aio_set_msg(&p->aio_putq, NULL); - - nni_pipe_recv(p->pipe, &p->aio_recv); -} - -static void -xreq0_recv_cb(void *arg) -{ - xreq0_pipe *p = arg; - xreq0_sock *sock = p->req; - nni_msg * msg; - bool end; - - if (nni_aio_result(&p->aio_recv) != 0) { - nni_pipe_close(p->pipe); - return; - } - - msg = nni_aio_get_msg(&p->aio_recv); - nni_aio_set_msg(&p->aio_recv, NULL); - nni_msg_set_pipe(msg, nni_pipe_id(p->pipe)); - end = false; - - while (!end) { - uint8_t *body; - - if (nni_msg_len(msg) < 4) { - // Peer gave us garbage, so kick it. - nni_msg_free(msg); - nni_pipe_close(p->pipe); - return; - } - body = nni_msg_body(msg); - end = ((body[0] & 0x80u) != 0); - - if (nng_msg_header_append(msg, body, sizeof (uint32_t)) != 0) { - // TODO: bump a no-memory stat - nni_msg_free(msg); - // Closing the pipe may release some memory. - // It at least gives an indication to the peer - // that we've lost the message. - nni_pipe_close(p->pipe); - return; - } - nni_msg_trim(msg, sizeof (uint32_t)); - } - nni_aio_set_msg(&p->aio_putq, msg); - nni_msgq_aio_put(sock->urq, &p->aio_putq); -} - -static void -xreq0_sock_send(void *arg, nni_aio *aio) -{ - xreq0_sock *s = arg; - - nni_msgq_aio_put(s->uwq, aio); -} - -static void -xreq0_sock_recv(void *arg, nni_aio *aio) -{ - xreq0_sock *s = arg; - - nni_msgq_aio_get(s->urq, aio); -} - -static int -xreq0_sock_set_max_ttl(void *arg, const void *buf, size_t sz, nni_opt_type t) -{ - xreq0_sock *s = arg; - int ttl; - int rv; - if ((rv = nni_copyin_int(&ttl, buf, sz, 1, NNI_MAX_MAX_TTL, t)) == 0) { - nni_atomic_set(&s->ttl, ttl); - } - return (rv); -} - -static int -xreq0_sock_get_max_ttl(void *arg, void *buf, size_t *szp, nni_opt_type t) -{ - xreq0_sock *s = arg; - return (nni_copyout_int(nni_atomic_get(&s->ttl), buf, szp, t)); -} - -static nni_proto_pipe_ops xreq0_pipe_ops = { - .pipe_size = sizeof(xreq0_pipe), - .pipe_init = xreq0_pipe_init, - .pipe_fini = xreq0_pipe_fini, - .pipe_start = xreq0_pipe_start, - .pipe_close = xreq0_pipe_close, - .pipe_stop = xreq0_pipe_stop, -}; - -static nni_option xreq0_sock_options[] = { - { - .o_name = NNG_OPT_MAXTTL, - .o_get = xreq0_sock_get_max_ttl, - .o_set = xreq0_sock_set_max_ttl, - }, - // terminate list - { - .o_name = NULL, - }, -}; - -static nni_proto_sock_ops xreq0_sock_ops = { - .sock_size = sizeof(xreq0_sock), - .sock_init = xreq0_sock_init, - .sock_fini = xreq0_sock_fini, - .sock_open = xreq0_sock_open, - .sock_close = xreq0_sock_close, - .sock_options = xreq0_sock_options, - .sock_send = xreq0_sock_send, - .sock_recv = xreq0_sock_recv, -}; - -static nni_proto xreq0_proto = { - .proto_version = NNI_PROTOCOL_VERSION, - .proto_self = { NNG_REQ0_SELF, NNG_REQ0_SELF_NAME }, - .proto_peer = { NNG_REQ0_PEER, NNG_REQ0_PEER_NAME }, - .proto_flags = NNI_PROTO_FLAG_SNDRCV | NNI_PROTO_FLAG_RAW, - .proto_sock_ops = &xreq0_sock_ops, - .proto_pipe_ops = &xreq0_pipe_ops, - .proto_ctx_ops = NULL, // raw mode does not support contexts -}; - -int -nng_req0_open_raw(nng_socket *sock) -{ - return (nni_proto_open(sock, &xreq0_proto)); -} diff --git a/src/protocol/reqrep0/xreq_test.c b/src/protocol/reqrep0/xreq_test.c deleted file mode 100644 index 8c850cba..00000000 --- a/src/protocol/reqrep0/xreq_test.c +++ /dev/null @@ -1,367 +0,0 @@ -// -// Copyright 2020 Staysail Systems, Inc. <info@staysail.tech> -// -// This software is supplied under the terms of the MIT License, a -// copy of which should be located in the distribution where this -// file was obtained (LICENSE.txt). A copy of the license may also be -// found online at https://opensource.org/licenses/MIT. -// - -#include <nuts.h> - -static void -test_xreq_identity(void) -{ - nng_socket s; - int p1, p2; - char * n1; - char * n2; - - NUTS_PASS(nng_req0_open_raw(&s)); - NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PROTO, &p1)); - NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PEER, &p2)); - NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PROTONAME, &n1)); - NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PEERNAME, &n2)); - NUTS_CLOSE(s); - NUTS_TRUE(p1 == NNG_REQ0_SELF); - NUTS_TRUE(p2 == NNG_REQ0_PEER); - NUTS_MATCH(n1, NNG_REQ0_SELF_NAME); - NUTS_MATCH(n2, NNG_REQ0_PEER_NAME); - nng_strfree(n1); - nng_strfree(n2); -} - -static void -test_xreq_raw(void) -{ - nng_socket s; - bool b; - - NUTS_PASS(nng_req0_open_raw(&s)); - NUTS_PASS(nng_socket_get_bool(s, NNG_OPT_RAW, &b)); - NUTS_TRUE(b); - NUTS_CLOSE(s); -} - -static void -test_xreq_no_context(void) -{ - nng_socket s; - nng_ctx ctx; - - NUTS_PASS(nng_req0_open_raw(&s)); - NUTS_FAIL(nng_ctx_open(&ctx, s), NNG_ENOTSUP); - NUTS_CLOSE(s); -} - -static void -test_xreq_poll_writeable(void) -{ - int fd; - nng_socket req; - nng_socket rep; - - NUTS_PASS(nng_req0_open_raw(&req)); - NUTS_PASS(nng_rep0_open(&rep)); - NUTS_PASS(nng_socket_get_int(req, NNG_OPT_SENDFD, &fd)); - NUTS_TRUE(fd >= 0); - - // We can't write until we have a connection. - NUTS_TRUE(nuts_poll_fd(fd) == false); - - NUTS_MARRY(req, rep); - - // Now it's writable. - NUTS_TRUE(nuts_poll_fd(fd) == true); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -static void -test_xreq_poll_readable(void) -{ - int fd; - nng_socket req; - nng_socket rep; - nng_msg * msg; - - NUTS_PASS(nng_req0_open_raw(&req)); - NUTS_PASS(nng_rep0_open(&rep)); - NUTS_PASS(nng_socket_get_int(req, NNG_OPT_RECVFD, &fd)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_RECVTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - - NUTS_TRUE(fd >= 0); - - // Not readable if not connected! - NUTS_TRUE(nuts_poll_fd(fd) == false); - - // Even after connect (no message yet) - NUTS_MARRY(req, rep); - NUTS_TRUE(nuts_poll_fd(fd) == false); - - // But once we send messages, it is. - // We have to send a request, in order to send a reply. - NUTS_PASS(nng_msg_alloc(&msg, 0)); - // Request ID - NUTS_PASS(nng_msg_append_u32(msg, 0x80000000)); - NUTS_PASS(nng_sendmsg(req, msg, 0)); - - NUTS_PASS(nng_recvmsg(rep, &msg, 0)); - NUTS_PASS(nng_sendmsg(rep, msg, 0)); - - NUTS_SLEEP(100); - - NUTS_TRUE(nuts_poll_fd(fd) == true); - - // and receiving makes it no longer ready - NUTS_PASS(nng_recvmsg(req, &msg, 0)); - nng_msg_free(msg); - NUTS_TRUE(nuts_poll_fd(fd) == false); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -static void -test_xreq_validate_peer(void) -{ - nng_socket s1, s2; - nng_stat * stats; - nng_stat * reject; - char * addr; - - NUTS_ADDR(addr, "inproc"); - - NUTS_PASS(nng_req0_open_raw(&s1)); - NUTS_PASS(nng_req0_open(&s2)); - - NUTS_PASS(nng_listen(s1, addr, NULL, 0)); - NUTS_PASS(nng_dial(s2, addr, NULL, NNG_FLAG_NONBLOCK)); - - NUTS_SLEEP(100); - NUTS_PASS(nng_stats_get(&stats)); - - NUTS_TRUE(stats != NULL); - NUTS_TRUE((reject = nng_stat_find_socket(stats, s1)) != NULL); - NUTS_TRUE((reject = nng_stat_find(reject, "reject")) != NULL); - - NUTS_TRUE(nng_stat_type(reject) == NNG_STAT_COUNTER); - NUTS_TRUE(nng_stat_value(reject) > 0); - - NUTS_CLOSE(s1); - NUTS_CLOSE(s2); - nng_stats_free(stats); -} - -static void -test_xreq_recv_aio_stopped(void) -{ - nng_socket req; - nng_aio * aio; - - NUTS_PASS(nng_req0_open_raw(&req)); - NUTS_PASS(nng_aio_alloc(&aio, NULL, NULL)); - - nng_aio_stop(aio); - nng_recv_aio(req, aio); - nng_aio_wait(aio); - NUTS_FAIL(nng_aio_result(aio), NNG_ECANCELED); - NUTS_CLOSE(req); - nng_aio_free(aio); -} - -static void -test_xreq_recv_garbage(void) -{ - nng_socket rep; - nng_socket req; - nng_msg * m; - uint32_t req_id; - - NUTS_PASS(nng_rep0_open_raw(&rep)); - NUTS_PASS(nng_req0_open_raw(&req)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_RECVTIMEO, 100)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 1000)); - - NUTS_MARRY(req, rep); - - NUTS_PASS(nng_msg_alloc(&m, 0)); - NUTS_PASS(nng_msg_append_u32(m, 0x80000000)); - NUTS_PASS(nng_sendmsg(req, m, 0)); - - NUTS_PASS(nng_recvmsg(rep, &m, 0)); - - // The message will have a header that contains the 32-bit pipe ID, - // followed by the 32-bit request ID. We will discard the request - // ID before sending it out. - NUTS_TRUE(nng_msg_header_len(m) == 8); - NUTS_PASS(nng_msg_header_chop_u32(m, &req_id)); - NUTS_TRUE(req_id == 0x80000000); - - NUTS_PASS(nng_sendmsg(rep, m, 0)); - NUTS_FAIL(nng_recvmsg(req, &m, 0), NNG_ETIMEDOUT); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -static void -test_xreq_recv_header(void) -{ - nng_socket rep; - nng_socket req; - nng_msg * m; - nng_pipe p1, p2; - uint32_t id; - - NUTS_PASS(nng_rep0_open_raw(&rep)); - NUTS_PASS(nng_req0_open_raw(&req)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_RECVTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_SENDTIMEO, 1000)); - - NUTS_MARRY_EX(req, rep, NULL, &p1, &p2); - - // Simulate a few hops. - NUTS_PASS(nng_msg_alloc(&m, 0)); - NUTS_PASS(nng_msg_header_append_u32(m, nng_pipe_id(p2))); - NUTS_PASS(nng_msg_header_append_u32(m, 0x2)); - NUTS_PASS(nng_msg_header_append_u32(m, 0x1)); - NUTS_PASS(nng_msg_header_append_u32(m, 0x80000123u)); - - NUTS_PASS(nng_sendmsg(rep, m, 0)); - - NUTS_PASS(nng_recvmsg(req, &m, 0)); - NUTS_TRUE(nng_msg_header_len(m) == 12); - NUTS_PASS(nng_msg_header_trim_u32(m, &id)); - NUTS_TRUE(id == 0x2); - NUTS_PASS(nng_msg_header_trim_u32(m, &id)); - NUTS_TRUE(id == 0x1); - NUTS_PASS(nng_msg_header_trim_u32(m, &id)); - NUTS_TRUE(id == 0x80000123u); - - nng_msg_free(m); - - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -static void -test_xreq_close_during_recv(void) -{ - nng_socket rep; - nng_socket req; - nng_msg * m; - nng_pipe p1; - nng_pipe p2; - - NUTS_PASS(nng_rep0_open_raw(&rep)); - NUTS_PASS(nng_req0_open_raw(&req)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 100)); - NUTS_PASS(nng_socket_set_int(req, NNG_OPT_RECVBUF, 5)); - NUTS_PASS(nng_socket_set_int(rep, NNG_OPT_SENDBUF, 20)); - - NUTS_MARRY_EX(req, rep, NULL, &p1, &p2); - NUTS_TRUE(nng_pipe_id(p1) > 0); - NUTS_TRUE(nng_pipe_id(p2) > 0); - - for (unsigned i = 0; i < 20; i++) { - NUTS_PASS(nng_msg_alloc(&m, 4)); - NUTS_PASS(nng_msg_header_append_u32(m, nng_pipe_id(p2))); - NUTS_PASS(nng_msg_header_append_u32(m, i | 0x80000000u)); - NUTS_SLEEP(10); - NUTS_PASS(nng_sendmsg(rep, m, 0)); - } - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -static void -test_xreq_close_pipe_during_send(void) -{ - nng_socket rep; - nng_socket req; - nng_msg * m; - nng_pipe p1; - nng_pipe p2; - - NUTS_PASS(nng_rep0_open_raw(&rep)); - NUTS_PASS(nng_req0_open_raw(&req)); - NUTS_PASS(nng_socket_set_ms(rep, NNG_OPT_RECVTIMEO, 1000)); - NUTS_PASS(nng_socket_set_ms(req, NNG_OPT_SENDTIMEO, 100)); - NUTS_PASS(nng_socket_set_int(rep, NNG_OPT_RECVBUF, 5)); - NUTS_PASS(nng_socket_set_int(req, NNG_OPT_SENDBUF, 20)); - - NUTS_MARRY_EX(req, rep, NULL, &p1, &p2); - NUTS_TRUE(nng_pipe_id(p1) > 0); - NUTS_TRUE(nng_pipe_id(p2) > 0); - - for (unsigned i = 0; i < 20; i++) { - NUTS_PASS(nng_msg_alloc(&m, 4)); - NUTS_PASS(nng_msg_header_append_u32(m, i | 0x80000000u)); - NUTS_SLEEP(10); - NUTS_PASS(nng_sendmsg(req, m, 0)); - } - - NUTS_PASS(nng_pipe_close(p1)); - NUTS_CLOSE(req); - NUTS_CLOSE(rep); -} - -static void -test_xreq_ttl_option(void) -{ - nng_socket rep; - int v; - bool b; - size_t sz; - const char *opt = NNG_OPT_MAXTTL; - - NUTS_PASS(nng_req0_open_raw(&rep)); - - NUTS_PASS(nng_socket_set_int(rep, opt, 1)); - NUTS_FAIL(nng_socket_set_int(rep, opt, 0), NNG_EINVAL); - NUTS_FAIL(nng_socket_set_int(rep, opt, -1), NNG_EINVAL); - NUTS_FAIL(nng_socket_set_int(rep, opt, 16), NNG_EINVAL); - NUTS_FAIL(nng_socket_set_int(rep, opt, 256), NNG_EINVAL); - NUTS_PASS(nng_socket_set_int(rep, opt, 3)); - NUTS_PASS(nng_socket_get_int(rep, opt, &v)); - NUTS_TRUE(v == 3); - v = 0; - sz = sizeof(v); - NUTS_PASS(nng_socket_get(rep, opt, &v, &sz)); - NUTS_TRUE(v == 3); - NUTS_TRUE(sz == sizeof(v)); - - NUTS_TRUE(nng_socket_set(rep, opt, "", 1) == NNG_EINVAL); - sz = 1; - NUTS_TRUE(nng_socket_get(rep, opt, &v, &sz) == NNG_EINVAL); - NUTS_TRUE(nng_socket_set_bool(rep, opt, true) == NNG_EBADTYPE); - NUTS_TRUE(nng_socket_get_bool(rep, opt, &b) == NNG_EBADTYPE); - - NUTS_TRUE(nng_close(rep) == 0); -} - -NUTS_TESTS = { - { "xreq identity", test_xreq_identity }, - { "xreq raw", test_xreq_raw }, - { "xreq no context", test_xreq_no_context }, - { "xreq poll readable", test_xreq_poll_readable }, - { "xreq poll writable", test_xreq_poll_writeable }, - { "xreq validate peer", test_xreq_validate_peer }, - { "xreq recv aio stopped", test_xreq_recv_aio_stopped }, - { "xreq recv garbage", test_xreq_recv_garbage }, - { "xreq recv header", test_xreq_recv_header }, - { "xreq close during recv", test_xreq_close_during_recv }, - { "xreq close pipe during send", test_xreq_close_pipe_during_send }, - { "xreq ttl option", test_xreq_ttl_option }, - { NULL, NULL }, -}; |