diff options
Diffstat (limited to 'src/nxt_unit.c')
| -rw-r--r-- | src/nxt_unit.c | 126 |
1 files changed, 87 insertions, 39 deletions
diff --git a/src/nxt_unit.c b/src/nxt_unit.c index 564fd094..69cae8bb 100644 --- a/src/nxt_unit.c +++ b/src/nxt_unit.c @@ -147,6 +147,8 @@ nxt_inline void nxt_unit_port_use(nxt_unit_port_t *port); nxt_inline void nxt_unit_port_release(nxt_unit_port_t *port); static nxt_unit_port_t *nxt_unit_add_port(nxt_unit_ctx_t *ctx, nxt_unit_port_t *port, void *queue); +static void nxt_unit_process_awaiting_req(nxt_unit_ctx_t *ctx, + nxt_queue_t *awaiting_req); static void nxt_unit_remove_port(nxt_unit_impl_t *lib, nxt_unit_port_id_t *port_id); static nxt_unit_port_t *nxt_unit_remove_port_unsafe(nxt_unit_impl_t *lib, @@ -5340,14 +5342,12 @@ nxt_inline void nxt_unit_port_release(nxt_unit_port_t *port) static nxt_unit_port_t * nxt_unit_add_port(nxt_unit_ctx_t *ctx, nxt_unit_port_t *port, void *queue) { - int rc; - nxt_queue_t awaiting_req; - nxt_unit_impl_t *lib; - nxt_unit_port_t *old_port; - nxt_unit_process_t *process; - nxt_unit_ctx_impl_t *ctx_impl; - nxt_unit_port_impl_t *new_port, *old_port_impl; - nxt_unit_request_info_impl_t *req_impl; + int rc, ready; + nxt_queue_t awaiting_req; + nxt_unit_impl_t *lib; + nxt_unit_port_t *old_port; + nxt_unit_process_t *process; + nxt_unit_port_impl_t *new_port, *old_port_impl; lib = nxt_container_of(ctx->unit, nxt_unit_impl_t, unit); @@ -5396,46 +5396,45 @@ nxt_unit_add_port(nxt_unit_ctx_t *ctx, nxt_unit_port_t *port, void *queue) old_port_impl->queue = queue; } - if (!nxt_queue_is_empty(&old_port_impl->awaiting_req)) { - nxt_queue_add(&awaiting_req, &old_port_impl->awaiting_req); - nxt_queue_init(&old_port_impl->awaiting_req); - } - - old_port_impl->ready = (port->in_fd != -1 || port->out_fd != -1); + ready = (port->in_fd != -1 || port->out_fd != -1); - pthread_mutex_unlock(&lib->mutex); + /* + * Port can be market as 'ready' only after callbacks.add_port() call. + * Otherwise, request may try to use the port before callback. + */ + if (lib->callbacks.add_port == NULL && ready) { + old_port_impl->ready = ready; - if (lib->callbacks.add_port != NULL - && (port->in_fd != -1 || port->out_fd != -1)) - { - lib->callbacks.add_port(ctx, old_port); + if (!nxt_queue_is_empty(&old_port_impl->awaiting_req)) { + nxt_queue_add(&awaiting_req, &old_port_impl->awaiting_req); + nxt_queue_init(&old_port_impl->awaiting_req); + } } - nxt_queue_each(req_impl, &awaiting_req, - nxt_unit_request_info_impl_t, port_wait_link) - { - nxt_queue_remove(&req_impl->port_wait_link); - - ctx_impl = nxt_container_of(req_impl->req.ctx, nxt_unit_ctx_impl_t, - ctx); + pthread_mutex_unlock(&lib->mutex); - pthread_mutex_lock(&ctx_impl->mutex); + if (lib->callbacks.add_port != NULL && ready) { + lib->callbacks.add_port(ctx, old_port); - nxt_queue_insert_tail(&ctx_impl->ready_req, - &req_impl->port_wait_link); + pthread_mutex_lock(&lib->mutex); - pthread_mutex_unlock(&ctx_impl->mutex); + old_port_impl->ready = ready; - nxt_atomic_fetch_add(&ctx_impl->wait_items, -1); + if (!nxt_queue_is_empty(&old_port_impl->awaiting_req)) { + nxt_queue_add(&awaiting_req, &old_port_impl->awaiting_req); + nxt_queue_init(&old_port_impl->awaiting_req); + } - nxt_unit_awake_ctx(ctx, ctx_impl); + pthread_mutex_unlock(&lib->mutex); + } - } nxt_queue_loop; + nxt_unit_process_awaiting_req(ctx, &awaiting_req); return old_port; } new_port = NULL; + ready = 0; nxt_unit_debug(ctx, "add_port: port{%d,%d} in_fd %d out_fd %d queue %p", port->id.pid, port->id.id, @@ -5478,13 +5477,21 @@ nxt_unit_add_port(nxt_unit_ctx_t *ctx, nxt_unit_port_t *port, void *queue) new_port->use_count = 2; new_port->process = process; - new_port->ready = (port->in_fd != -1 || port->out_fd != -1); new_port->queue = queue; new_port->from_socket = 0; new_port->socket_rbuf = NULL; nxt_queue_init(&new_port->awaiting_req); + ready = (port->in_fd != -1 || port->out_fd != -1); + + if (lib->callbacks.add_port == NULL) { + new_port->ready = ready; + + } else { + new_port->ready = 0; + } + process = NULL; unlock: @@ -5495,14 +5502,55 @@ unlock: nxt_unit_process_release(process); } - if (lib->callbacks.add_port != NULL - && new_port != NULL - && (port->in_fd != -1 || port->out_fd != -1)) - { + if (lib->callbacks.add_port != NULL && new_port != NULL && ready) { lib->callbacks.add_port(ctx, &new_port->port); + + nxt_queue_init(&awaiting_req); + + pthread_mutex_lock(&lib->mutex); + + new_port->ready = 1; + + if (!nxt_queue_is_empty(&new_port->awaiting_req)) { + nxt_queue_add(&awaiting_req, &new_port->awaiting_req); + nxt_queue_init(&new_port->awaiting_req); + } + + pthread_mutex_unlock(&lib->mutex); + + nxt_unit_process_awaiting_req(ctx, &awaiting_req); } - return &new_port->port; + return (new_port == NULL) ? NULL : &new_port->port; +} + + +static void +nxt_unit_process_awaiting_req(nxt_unit_ctx_t *ctx, nxt_queue_t *awaiting_req) +{ + nxt_unit_ctx_impl_t *ctx_impl; + nxt_unit_request_info_impl_t *req_impl; + + nxt_queue_each(req_impl, awaiting_req, + nxt_unit_request_info_impl_t, port_wait_link) + { + nxt_queue_remove(&req_impl->port_wait_link); + + ctx_impl = nxt_container_of(req_impl->req.ctx, nxt_unit_ctx_impl_t, + ctx); + + pthread_mutex_lock(&ctx_impl->mutex); + + nxt_queue_insert_tail(&ctx_impl->ready_req, + &req_impl->port_wait_link); + + pthread_mutex_unlock(&ctx_impl->mutex); + + nxt_atomic_fetch_add(&ctx_impl->wait_items, -1); + + nxt_unit_awake_ctx(ctx, ctx_impl); + + } nxt_queue_loop; } |