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Diffstat (limited to 'src/core/lib/iomgr/tcp_server_uv.cc')
-rw-r--r--src/core/lib/iomgr/tcp_server_uv.cc473
1 files changed, 0 insertions, 473 deletions
diff --git a/src/core/lib/iomgr/tcp_server_uv.cc b/src/core/lib/iomgr/tcp_server_uv.cc
deleted file mode 100644
index aa423766c7..0000000000
--- a/src/core/lib/iomgr/tcp_server_uv.cc
+++ /dev/null
@@ -1,473 +0,0 @@
-/*
- *
- * Copyright 2015 gRPC authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- */
-
-#include <grpc/support/port_platform.h>
-
-#include "src/core/lib/iomgr/port.h"
-
-#ifdef GRPC_UV
-
-#include <assert.h>
-#include <string.h>
-
-#include <grpc/support/alloc.h>
-#include <grpc/support/log.h>
-
-#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"
-#include "src/core/lib/iomgr/tcp_uv.h"
-
-/* one listening port */
-typedef struct grpc_tcp_listener grpc_tcp_listener;
-struct grpc_tcp_listener {
- uv_tcp_t* handle;
- grpc_tcp_server* server;
- unsigned port_index;
- int port;
- /* linked list */
- struct grpc_tcp_listener* next;
-
- bool closed;
-
- bool has_pending_connection;
-};
-
-struct grpc_tcp_server {
- gpr_refcount refs;
-
- /* Called whenever accept() succeeds on a server port. */
- grpc_tcp_server_cb on_accept_cb;
- void* on_accept_cb_arg;
-
- int open_ports;
-
- /* linked list of server ports */
- grpc_tcp_listener* head;
- grpc_tcp_listener* tail;
-
- /* List of closures passed to shutdown_starting_add(). */
- grpc_closure_list shutdown_starting;
-
- /* shutdown callback */
- grpc_closure* shutdown_complete;
-
- bool shutdown;
-
- grpc_resource_quota* resource_quota;
-};
-
-grpc_error* grpc_tcp_server_create(grpc_closure* shutdown_complete,
- const grpc_channel_args* args,
- grpc_tcp_server** server) {
- grpc_tcp_server* s = (grpc_tcp_server*)gpr_malloc(sizeof(grpc_tcp_server));
- s->resource_quota = grpc_resource_quota_create(NULL);
- for (size_t i = 0; i < (args == NULL ? 0 : args->num_args); i++) {
- if (0 == strcmp(GRPC_ARG_RESOURCE_QUOTA, args->args[i].key)) {
- if (args->args[i].type == GRPC_ARG_POINTER) {
- grpc_resource_quota_unref_internal(s->resource_quota);
- s->resource_quota = grpc_resource_quota_ref_internal(
- (grpc_resource_quota*)args->args[i].value.pointer.p);
- } else {
- grpc_resource_quota_unref_internal(s->resource_quota);
- gpr_free(s);
- return GRPC_ERROR_CREATE_FROM_STATIC_STRING(
- GRPC_ARG_RESOURCE_QUOTA " must be a pointer to a buffer pool");
- }
- }
- }
- gpr_ref_init(&s->refs, 1);
- s->on_accept_cb = NULL;
- s->on_accept_cb_arg = NULL;
- s->open_ports = 0;
- s->head = NULL;
- s->tail = NULL;
- s->shutdown_starting.head = NULL;
- s->shutdown_starting.tail = NULL;
- s->shutdown_complete = shutdown_complete;
- s->shutdown = false;
- *server = s;
- return GRPC_ERROR_NONE;
-}
-
-grpc_tcp_server* grpc_tcp_server_ref(grpc_tcp_server* s) {
- GRPC_UV_ASSERT_SAME_THREAD();
- gpr_ref(&s->refs);
- return s;
-}
-
-void grpc_tcp_server_shutdown_starting_add(grpc_tcp_server* s,
- grpc_closure* shutdown_starting) {
- grpc_closure_list_append(&s->shutdown_starting, shutdown_starting,
- GRPC_ERROR_NONE);
-}
-
-static void finish_shutdown(grpc_tcp_server* s) {
- GPR_ASSERT(s->shutdown);
- if (s->shutdown_complete != NULL) {
- GRPC_CLOSURE_SCHED(s->shutdown_complete, GRPC_ERROR_NONE);
- }
-
- while (s->head) {
- grpc_tcp_listener* sp = s->head;
- s->head = sp->next;
- sp->next = NULL;
- gpr_free(sp->handle);
- gpr_free(sp);
- }
- grpc_resource_quota_unref_internal(s->resource_quota);
- gpr_free(s);
-}
-
-static void handle_close_callback(uv_handle_t* handle) {
- grpc_tcp_listener* sp = (grpc_tcp_listener*)handle->data;
- grpc_core::ExecCtx exec_ctx;
- sp->server->open_ports--;
- if (sp->server->open_ports == 0 && sp->server->shutdown) {
- finish_shutdown(sp->server);
- }
-}
-
-static void close_listener(grpc_tcp_listener* sp) {
- if (!sp->closed) {
- sp->closed = true;
- uv_close((uv_handle_t*)sp->handle, handle_close_callback);
- }
-}
-
-static void tcp_server_destroy(grpc_tcp_server* s) {
- int immediately_done = 0;
- grpc_tcp_listener* sp;
-
- GPR_ASSERT(!s->shutdown);
- s->shutdown = true;
-
- if (s->open_ports == 0) {
- immediately_done = 1;
- }
- for (sp = s->head; sp; sp = sp->next) {
- close_listener(sp);
- }
-
- if (immediately_done) {
- finish_shutdown(s);
- }
-}
-
-void grpc_tcp_server_unref(grpc_tcp_server* s) {
- GRPC_UV_ASSERT_SAME_THREAD();
- if (gpr_unref(&s->refs)) {
- /* Complete shutdown_starting work before destroying. */
- grpc_core::ExecCtx exec_ctx;
- GRPC_CLOSURE_LIST_SCHED(&s->shutdown_starting);
- grpc_core::ExecCtx::Get()->Flush();
- tcp_server_destroy(s);
- }
-}
-
-static void finish_accept(grpc_tcp_listener* sp) {
- grpc_tcp_server_acceptor* acceptor =
- (grpc_tcp_server_acceptor*)gpr_malloc(sizeof(*acceptor));
- uv_tcp_t* client = NULL;
- grpc_endpoint* ep = NULL;
- grpc_resolved_address peer_name;
- char* peer_name_string;
- int err;
- uv_tcp_t* server = sp->handle;
-
- client = (uv_tcp_t*)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_tcp_trace.enabled()) {
- 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(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_core::ExecCtx exec_ctx;
-
- if (status < 0) {
- switch (status) {
- case UV_EINTR:
- case UV_EAGAIN:
- return;
- default:
- close_listener(sp);
- return;
- }
- }
-
- GPR_ASSERT(!sp->has_pending_connection);
-
- if (grpc_tcp_trace.enabled()) {
- gpr_log(GPR_DEBUG, "SERVER_CONNECT: %p incoming connection", sp->server);
- }
-
- // Create acceptor.
- if (sp->server->on_accept_cb) {
- finish_accept(sp);
- } else {
- sp->has_pending_connection = true;
- }
-}
-
-static grpc_error* add_addr_to_server(grpc_tcp_server* s,
- const grpc_resolved_address* addr,
- unsigned port_index,
- grpc_tcp_listener** listener) {
- grpc_tcp_listener* sp = NULL;
- int port = -1;
- int status;
- grpc_error* error;
- grpc_resolved_address sockname_temp;
- uv_tcp_t* handle = (uv_tcp_t*)gpr_malloc(sizeof(uv_tcp_t));
- int 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 = GRPC_ERROR_CREATE_FROM_STATIC_STRING(
- "Failed to initialize UV tcp handle");
- error =
- grpc_error_set_str(error, GRPC_ERROR_STR_OS_ERROR,
- grpc_slice_from_static_string(uv_strerror(status)));
- return error;
- }
-
- // The last argument to uv_tcp_bind is flags
- status = uv_tcp_bind(handle, (struct sockaddr*)addr->addr, 0);
- if (status != 0) {
- error = GRPC_ERROR_CREATE_FROM_STATIC_STRING("Failed to bind to port");
- error =
- grpc_error_set_str(error, GRPC_ERROR_STR_OS_ERROR,
- grpc_slice_from_static_string(uv_strerror(status)));
- return error;
- }
-
- status = uv_listen((uv_stream_t*)handle, SOMAXCONN, on_connect);
- if (status != 0) {
- error = GRPC_ERROR_CREATE_FROM_STATIC_STRING("Failed to listen to port");
- error =
- grpc_error_set_str(error, GRPC_ERROR_STR_OS_ERROR,
- grpc_slice_from_static_string(uv_strerror(status)));
- return error;
- }
-
- sockname_temp.len = (int)sizeof(struct sockaddr_storage);
- status = uv_tcp_getsockname(handle, (struct sockaddr*)&sockname_temp.addr,
- (int*)&sockname_temp.len);
- if (status != 0) {
- error = GRPC_ERROR_CREATE_FROM_STATIC_STRING("getsockname failed");
- error =
- grpc_error_set_str(error, GRPC_ERROR_STR_OS_ERROR,
- grpc_slice_from_static_string(uv_strerror(status)));
- return error;
- }
-
- port = grpc_sockaddr_get_port(&sockname_temp);
-
- GPR_ASSERT(port >= 0);
- GPR_ASSERT(!s->on_accept_cb && "must add ports before starting server");
- sp = (grpc_tcp_listener*)gpr_zalloc(sizeof(grpc_tcp_listener));
- sp->next = NULL;
- if (s->head == NULL) {
- s->head = sp;
- } else {
- s->tail->next = sp;
- }
- s->tail = sp;
- sp->server = s;
- sp->handle = handle;
- sp->port = port;
- sp->port_index = port_index;
- sp->closed = false;
- handle->data = sp;
- s->open_ports++;
- GPR_ASSERT(sp->handle);
- *listener = sp;
-
- return GRPC_ERROR_NONE;
-}
-
-static grpc_error* add_wildcard_addrs_to_server(grpc_tcp_server* s,
- unsigned port_index,
- int requested_port,
- grpc_tcp_listener** listener) {
- grpc_resolved_address wild4;
- grpc_resolved_address wild6;
- grpc_tcp_listener* sp = nullptr;
- grpc_tcp_listener* sp2 = nullptr;
- grpc_error* v6_err = GRPC_ERROR_NONE;
- grpc_error* v4_err = GRPC_ERROR_NONE;
-
- grpc_sockaddr_make_wildcards(requested_port, &wild4, &wild6);
- /* Try listening on IPv6 first. */
- if ((v6_err = add_addr_to_server(s, &wild6, port_index, &sp)) ==
- GRPC_ERROR_NONE) {
- *listener = sp;
- return GRPC_ERROR_NONE;
- }
-
- if ((v4_err = add_addr_to_server(s, &wild4, port_index, &sp2)) ==
- GRPC_ERROR_NONE) {
- *listener = sp2;
- return GRPC_ERROR_NONE;
- }
-
- grpc_error* root_err = GRPC_ERROR_CREATE_FROM_STATIC_STRING(
- "Failed to add any wildcard listeners");
- root_err = grpc_error_add_child(root_err, v6_err);
- root_err = grpc_error_add_child(root_err, v4_err);
- return root_err;
-}
-
-grpc_error* grpc_tcp_server_add_port(grpc_tcp_server* s,
- const grpc_resolved_address* addr,
- int* port) {
- // This function is mostly copied from tcp_server_windows.c
- grpc_tcp_listener* sp = NULL;
- grpc_resolved_address addr6_v4mapped;
- grpc_resolved_address* allocated_addr = NULL;
- grpc_resolved_address sockname_temp;
- unsigned port_index = 0;
- grpc_error* error = GRPC_ERROR_NONE;
-
- GRPC_UV_ASSERT_SAME_THREAD();
-
- if (s->tail != NULL) {
- port_index = s->tail->port_index + 1;
- }
-
- /* Check if this is a wildcard port, and if so, try to keep the port the same
- as some previously created listener. */
- if (grpc_sockaddr_get_port(addr) == 0) {
- for (sp = s->head; sp; sp = sp->next) {
- sockname_temp.len = sizeof(struct sockaddr_storage);
- if (0 == uv_tcp_getsockname(sp->handle,
- (struct sockaddr*)&sockname_temp.addr,
- (int*)&sockname_temp.len)) {
- *port = grpc_sockaddr_get_port(&sockname_temp);
- if (*port > 0) {
- allocated_addr =
- (grpc_resolved_address*)gpr_malloc(sizeof(grpc_resolved_address));
- memcpy(allocated_addr, addr, sizeof(grpc_resolved_address));
- grpc_sockaddr_set_port(allocated_addr, *port);
- addr = allocated_addr;
- break;
- }
- }
- }
- }
-
- /* Treat :: or 0.0.0.0 as a family-agnostic wildcard. */
- if (grpc_sockaddr_is_wildcard(addr, port)) {
- error = add_wildcard_addrs_to_server(s, port_index, *port, &sp);
- } else {
- if (grpc_sockaddr_to_v4mapped(addr, &addr6_v4mapped)) {
- addr = &addr6_v4mapped;
- }
-
- error = add_addr_to_server(s, addr, port_index, &sp);
- }
-
- gpr_free(allocated_addr);
-
- if (grpc_tcp_trace.enabled()) {
- 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);
- GRPC_ERROR_UNREF(error);
- error = error_out;
- *port = -1;
- } else {
- GPR_ASSERT(sp != NULL);
- *port = sp->port;
- }
- return error;
-}
-
-void grpc_tcp_server_start(grpc_tcp_server* server, grpc_pollset** pollsets,
- size_t pollset_count,
- grpc_tcp_server_cb on_accept_cb, void* cb_arg) {
- grpc_tcp_listener* sp;
- (void)pollsets;
- (void)pollset_count;
- GRPC_UV_ASSERT_SAME_THREAD();
- if (grpc_tcp_trace.enabled()) {
- 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) {
- if (sp->has_pending_connection) {
- finish_accept(sp);
- sp->has_pending_connection = false;
- }
- }
-}
-
-void grpc_tcp_server_shutdown_listeners(grpc_tcp_server* s) {}
-
-#endif /* GRPC_UV */
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