diff options
Diffstat (limited to 'src/protocol/pipeline/pull.c')
| -rw-r--r-- | src/protocol/pipeline/pull.c | 242 |
1 files changed, 0 insertions, 242 deletions
diff --git a/src/protocol/pipeline/pull.c b/src/protocol/pipeline/pull.c deleted file mode 100644 index 9685f0a1..00000000 --- a/src/protocol/pipeline/pull.c +++ /dev/null @@ -1,242 +0,0 @@ -// -// Copyright 2017 Garrett D'Amore <garrett@damore.org> -// Copyright 2017 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 <stdlib.h> -#include <string.h> - -#include "core/nng_impl.h" - -// Pull protocol. The PULL protocol is the "read" side of a pipeline. - -typedef struct pull_pipe pull_pipe; -typedef struct pull_sock pull_sock; - -static void pull_putq_cb(void *); -static void pull_recv_cb(void *); -static void pull_putq(pull_pipe *, nni_msg *); - -// A pull_sock is our per-socket protocol private structure. -struct pull_sock { - nni_msgq *urq; - int raw; -}; - -// A pull_pipe is our per-pipe protocol private structure. -struct pull_pipe { - nni_pipe * pipe; - pull_sock *pull; - nni_aio * putq_aio; - nni_aio * recv_aio; -}; - -static int -pull_sock_init(void **sp, nni_sock *sock) -{ - pull_sock *s; - - if ((s = NNI_ALLOC_STRUCT(s)) == NULL) { - return (NNG_ENOMEM); - } - s->raw = 0; - s->urq = nni_sock_recvq(sock); - - *sp = s; - return (0); -} - -static void -pull_sock_fini(void *arg) -{ - pull_sock *s = arg; - - NNI_FREE_STRUCT(s); -} - -static void -pull_pipe_fini(void *arg) -{ - pull_pipe *p = arg; - - nni_aio_fini(p->putq_aio); - nni_aio_fini(p->recv_aio); - NNI_FREE_STRUCT(p); -} - -static int -pull_pipe_init(void **pp, nni_pipe *pipe, void *s) -{ - pull_pipe *p; - int rv; - - if ((p = NNI_ALLOC_STRUCT(p)) == NULL) { - return (NNG_ENOMEM); - } - if (((rv = nni_aio_init(&p->putq_aio, pull_putq_cb, p)) != 0) || - ((rv = nni_aio_init(&p->recv_aio, pull_recv_cb, p)) != 0)) { - pull_pipe_fini(p); - return (rv); - } - - p->pipe = pipe; - p->pull = s; - *pp = p; - return (0); -} - -static int -pull_pipe_start(void *arg) -{ - pull_pipe *p = arg; - - // Start the pending pull... - nni_pipe_recv(p->pipe, p->recv_aio); - - return (0); -} - -static void -pull_pipe_stop(void *arg) -{ - pull_pipe *p = arg; - - nni_aio_stop(p->putq_aio); - nni_aio_stop(p->recv_aio); -} - -static void -pull_recv_cb(void *arg) -{ - pull_pipe *p = arg; - nni_aio * aio = p->recv_aio; - nni_msg * msg; - - if (nni_aio_result(aio) != 0) { - // Failed to get a message, probably the pipe is closed. - nni_pipe_stop(p->pipe); - return; - } - - // Got a message... start the put to send it up to the application. - msg = nni_aio_get_msg(aio); - nni_msg_set_pipe(msg, nni_pipe_id(p->pipe)); - nni_aio_set_msg(aio, NULL); - pull_putq(p, msg); -} - -static void -pull_putq_cb(void *arg) -{ - pull_pipe *p = arg; - nni_aio * aio = p->putq_aio; - - if (nni_aio_result(aio) != 0) { - // If we failed to put, probably NNG_ECLOSED, nothing else - // we can do. Just close the pipe. - nni_msg_free(nni_aio_get_msg(aio)); - nni_aio_set_msg(aio, NULL); - nni_pipe_stop(p->pipe); - return; - } - - nni_pipe_recv(p->pipe, p->recv_aio); -} - -// nni_pull_putq schedules a put operation to the user socket (sendup). -static void -pull_putq(pull_pipe *p, nni_msg *msg) -{ - pull_sock *s = p->pull; - - nni_aio_set_msg(p->putq_aio, msg); - - nni_msgq_aio_put(s->urq, p->putq_aio); -} - -static void -pull_sock_open(void *arg) -{ - NNI_ARG_UNUSED(arg); -} - -static void -pull_sock_close(void *arg) -{ - NNI_ARG_UNUSED(arg); -} - -static int -pull_sock_setopt_raw(void *arg, const void *buf, size_t sz) -{ - pull_sock *s = arg; - return (nni_setopt_int(&s->raw, buf, sz, 0, 1)); -} - -static int -pull_sock_getopt_raw(void *arg, void *buf, size_t *szp) -{ - pull_sock *s = arg; - return (nni_getopt_int(s->raw, buf, szp)); -} - -static void -pull_sock_send(void *arg, nni_aio *aio) -{ - nni_aio_finish_error(aio, NNG_ENOTSUP); -} - -static void -pull_sock_recv(void *arg, nni_aio *aio) -{ - pull_sock *s = arg; - - nni_msgq_aio_get(s->urq, aio); -} - -static nni_proto_pipe_ops pull_pipe_ops = { - .pipe_init = pull_pipe_init, - .pipe_fini = pull_pipe_fini, - .pipe_start = pull_pipe_start, - .pipe_stop = pull_pipe_stop, -}; - -static nni_proto_sock_option pull_sock_options[] = { - { - .pso_name = NNG_OPT_RAW, - .pso_getopt = pull_sock_getopt_raw, - .pso_setopt = pull_sock_setopt_raw, - }, - // terminate list - { NULL, NULL, NULL }, -}; - -static nni_proto_sock_ops pull_sock_ops = { - .sock_init = pull_sock_init, - .sock_fini = pull_sock_fini, - .sock_open = pull_sock_open, - .sock_close = pull_sock_close, - .sock_send = pull_sock_send, - .sock_recv = pull_sock_recv, - .sock_options = pull_sock_options, -}; - -static nni_proto pull_proto = { - .proto_version = NNI_PROTOCOL_VERSION, - .proto_self = { NNI_PROTO_PULL_V0, "pull" }, - .proto_peer = { NNI_PROTO_PUSH_V0, "push" }, - .proto_flags = NNI_PROTO_FLAG_RCV, - .proto_pipe_ops = &pull_pipe_ops, - .proto_sock_ops = &pull_sock_ops, -}; - -int -nng_pull0_open(nng_socket *sidp) -{ - return (nni_proto_open(sidp, &pull_proto)); -} |