diff options
author | 2017-07-21 16:06:17 -0700 | |
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committer | 2017-07-21 16:06:17 -0700 | |
commit | 288076d9180ca3c9a4bcd377ef04aa98b45f7d3b (patch) | |
tree | 06b66cb1128a11fdccff305ebbba9011222a42b3 /src/core/lib/iomgr/tcp_server_uv.c | |
parent | c5fe5ccc695cd5f1aa040e62429f663b9795e327 (diff) | |
parent | 781fd6f6ea03645a520cd5c675da67ab61f87e4b (diff) |
Merge github.com:grpc/grpc into write_completion
Diffstat (limited to 'src/core/lib/iomgr/tcp_server_uv.c')
-rw-r--r-- | src/core/lib/iomgr/tcp_server_uv.c | 129 |
1 files changed, 91 insertions, 38 deletions
diff --git a/src/core/lib/iomgr/tcp_server_uv.c b/src/core/lib/iomgr/tcp_server_uv.c index 2ab836cc34..3b9332321f 100644 --- a/src/core/lib/iomgr/tcp_server_uv.c +++ b/src/core/lib/iomgr/tcp_server_uv.c @@ -20,6 +20,7 @@ #ifdef GRPC_UV +#include <assert.h> #include <string.h> #include <grpc/support/alloc.h> @@ -27,6 +28,7 @@ #include "src/core/lib/iomgr/error.h" #include "src/core/lib/iomgr/exec_ctx.h" +#include "src/core/lib/iomgr/iomgr_uv.h" #include "src/core/lib/iomgr/sockaddr.h" #include "src/core/lib/iomgr/sockaddr_utils.h" #include "src/core/lib/iomgr/tcp_server.h" @@ -43,6 +45,8 @@ struct grpc_tcp_listener { struct grpc_tcp_listener *next; bool closed; + + bool has_pending_connection; }; struct grpc_tcp_server { @@ -104,6 +108,7 @@ grpc_error *grpc_tcp_server_create(grpc_exec_ctx *exec_ctx, } grpc_tcp_server *grpc_tcp_server_ref(grpc_tcp_server *s) { + GRPC_UV_ASSERT_SAME_THREAD(); gpr_ref(&s->refs); return s; } @@ -168,6 +173,7 @@ static void tcp_server_destroy(grpc_exec_ctx *exec_ctx, grpc_tcp_server *s) { } void grpc_tcp_server_unref(grpc_exec_ctx *exec_ctx, grpc_tcp_server *s) { + GRPC_UV_ASSERT_SAME_THREAD(); if (gpr_unref(&s->refs)) { /* Complete shutdown_starting work before destroying. */ grpc_exec_ctx local_exec_ctx = GRPC_EXEC_CTX_INIT; @@ -183,18 +189,49 @@ void grpc_tcp_server_unref(grpc_exec_ctx *exec_ctx, grpc_tcp_server *s) { } } -static void accepted_connection_close_cb(uv_handle_t *handle) { - gpr_free(handle); -} - -static void on_connect(uv_stream_t *server, int status) { - grpc_tcp_listener *sp = (grpc_tcp_listener *)server->data; +static void finish_accept(grpc_exec_ctx *exec_ctx, grpc_tcp_listener *sp) { + grpc_tcp_server_acceptor *acceptor = gpr_malloc(sizeof(*acceptor)); uv_tcp_t *client; grpc_endpoint *ep = NULL; - grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; grpc_resolved_address peer_name; char *peer_name_string; int err; + uv_tcp_t *server = sp->handle; + + client = gpr_malloc(sizeof(uv_tcp_t)); + uv_tcp_init(uv_default_loop(), client); + // UV documentation says this is guaranteed to succeed + uv_accept((uv_stream_t *)server, (uv_stream_t *)client); + peer_name_string = NULL; + memset(&peer_name, 0, sizeof(grpc_resolved_address)); + peer_name.len = sizeof(struct sockaddr_storage); + err = uv_tcp_getpeername(client, (struct sockaddr *)&peer_name.addr, + (int *)&peer_name.len); + if (err == 0) { + peer_name_string = grpc_sockaddr_to_uri(&peer_name); + } else { + gpr_log(GPR_INFO, "uv_tcp_getpeername error: %s", uv_strerror(err)); + } + if (GRPC_TRACER_ON(grpc_tcp_trace)) { + if (peer_name_string) { + gpr_log(GPR_DEBUG, "SERVER_CONNECT: %p accepted connection: %s", + sp->server, peer_name_string); + } else { + gpr_log(GPR_DEBUG, "SERVER_CONNECT: %p accepted connection", sp->server); + } + } + ep = grpc_tcp_create(client, sp->server->resource_quota, peer_name_string); + acceptor->from_server = sp->server; + acceptor->port_index = sp->port_index; + acceptor->fd_index = 0; + sp->server->on_accept_cb(exec_ctx, sp->server->on_accept_cb_arg, ep, NULL, + acceptor); + gpr_free(peer_name_string); +} + +static void on_connect(uv_stream_t *server, int status) { + grpc_tcp_listener *sp = (grpc_tcp_listener *)server->data; + grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; if (status < 0) { switch (status) { @@ -207,35 +244,19 @@ static void on_connect(uv_stream_t *server, int status) { } } - client = gpr_malloc(sizeof(uv_tcp_t)); - uv_tcp_init(uv_default_loop(), client); - // UV documentation says this is guaranteed to succeed - uv_accept((uv_stream_t *)server, (uv_stream_t *)client); - // If the server has not been started, we discard incoming connections - if (sp->server->on_accept_cb == NULL) { - uv_close((uv_handle_t *)client, accepted_connection_close_cb); + GPR_ASSERT(!sp->has_pending_connection); + + if (GRPC_TRACER_ON(grpc_tcp_trace)) { + gpr_log(GPR_DEBUG, "SERVER_CONNECT: %p incoming connection", sp->server); + } + + // Create acceptor. + if (sp->server->on_accept_cb) { + finish_accept(&exec_ctx, sp); } else { - peer_name_string = NULL; - memset(&peer_name, 0, sizeof(grpc_resolved_address)); - peer_name.len = sizeof(struct sockaddr_storage); - err = uv_tcp_getpeername(client, (struct sockaddr *)&peer_name.addr, - (int *)&peer_name.len); - if (err == 0) { - peer_name_string = grpc_sockaddr_to_uri(&peer_name); - } else { - gpr_log(GPR_INFO, "uv_tcp_getpeername error: %s", uv_strerror(status)); - } - ep = grpc_tcp_create(client, sp->server->resource_quota, peer_name_string); - // Create acceptor. - grpc_tcp_server_acceptor *acceptor = gpr_malloc(sizeof(*acceptor)); - acceptor->from_server = sp->server; - acceptor->port_index = sp->port_index; - acceptor->fd_index = 0; - sp->server->on_accept_cb(&exec_ctx, sp->server->on_accept_cb_arg, ep, NULL, - acceptor); - grpc_exec_ctx_finish(&exec_ctx); - gpr_free(peer_name_string); + sp->has_pending_connection = true; } + grpc_exec_ctx_finish(&exec_ctx); } static grpc_error *add_socket_to_server(grpc_tcp_server *s, uv_tcp_t *handle, @@ -282,7 +303,7 @@ static grpc_error *add_socket_to_server(grpc_tcp_server *s, uv_tcp_t *handle, GPR_ASSERT(port >= 0); GPR_ASSERT(!s->on_accept_cb && "must add ports before starting server"); - sp = gpr_malloc(sizeof(grpc_tcp_listener)); + sp = gpr_zalloc(sizeof(grpc_tcp_listener)); sp->next = NULL; if (s->head == NULL) { s->head = sp; @@ -316,6 +337,9 @@ grpc_error *grpc_tcp_server_add_port(grpc_tcp_server *s, unsigned port_index = 0; int status; grpc_error *error = GRPC_ERROR_NONE; + int family; + + GRPC_UV_ASSERT_SAME_THREAD(); if (s->tail != NULL) { port_index = s->tail->port_index + 1; @@ -353,7 +377,18 @@ grpc_error *grpc_tcp_server_add_port(grpc_tcp_server *s, } handle = gpr_malloc(sizeof(uv_tcp_t)); - status = uv_tcp_init(uv_default_loop(), handle); + + family = grpc_sockaddr_get_family(addr); + status = uv_tcp_init_ex(uv_default_loop(), handle, (unsigned int)family); +#if defined(GPR_LINUX) && defined(SO_REUSEPORT) + if (family == AF_INET || family == AF_INET6) { + int fd; + uv_fileno((uv_handle_t *)handle, &fd); + int enable = 1; + setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &enable, sizeof(enable)); + } +#endif /* GPR_LINUX && SO_REUSEPORT */ + if (status == 0) { error = add_socket_to_server(s, handle, addr, port_index, &sp); } else { @@ -366,6 +401,18 @@ grpc_error *grpc_tcp_server_add_port(grpc_tcp_server *s, gpr_free(allocated_addr); + if (GRPC_TRACER_ON(grpc_tcp_trace)) { + char *port_string; + grpc_sockaddr_to_string(&port_string, addr, 0); + const char *str = grpc_error_string(error); + if (port_string) { + gpr_log(GPR_DEBUG, "SERVER %p add_port %s error=%s", s, port_string, str); + gpr_free(port_string); + } else { + gpr_log(GPR_DEBUG, "SERVER %p add_port error=%s", s, str); + } + } + if (error != GRPC_ERROR_NONE) { grpc_error *error_out = GRPC_ERROR_CREATE_REFERENCING_FROM_STATIC_STRING( "Failed to add port to server", &error, 1); @@ -385,13 +432,19 @@ void grpc_tcp_server_start(grpc_exec_ctx *exec_ctx, grpc_tcp_server *server, grpc_tcp_listener *sp; (void)pollsets; (void)pollset_count; + GRPC_UV_ASSERT_SAME_THREAD(); + if (GRPC_TRACER_ON(grpc_tcp_trace)) { + gpr_log(GPR_DEBUG, "SERVER_START %p", server); + } GPR_ASSERT(on_accept_cb); GPR_ASSERT(!server->on_accept_cb); server->on_accept_cb = on_accept_cb; server->on_accept_cb_arg = cb_arg; for (sp = server->head; sp; sp = sp->next) { - GPR_ASSERT(uv_listen((uv_stream_t *)sp->handle, SOMAXCONN, on_connect) == - 0); + if (sp->has_pending_connection) { + finish_accept(exec_ctx, sp); + sp->has_pending_connection = false; + } } } |