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-rw-r--r--src/protocol/reqrep0/req.c869
1 files changed, 0 insertions, 869 deletions
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));
-}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2026-01-18 17:27:42 +0000