| /* |
| * |
| * Copyright 2017 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 "src/core/lib/iomgr/port.h" |
| |
| // This test won't work except with libuv |
| #ifdef GRPC_UV |
| |
| #include <uv.h> |
| |
| #include "src/core/lib/iomgr/tcp_server.h" |
| |
| #include <string.h> |
| |
| #include <grpc/grpc.h> |
| #include <grpc/support/alloc.h> |
| #include <grpc/support/log.h> |
| #include <grpc/support/sync.h> |
| #include <grpc/support/time.h> |
| |
| #include "src/core/lib/iomgr/iomgr.h" |
| #include "src/core/lib/iomgr/resolve_address.h" |
| #include "src/core/lib/iomgr/sockaddr_utils.h" |
| #include "test/core/util/port.h" |
| #include "test/core/util/test_config.h" |
| |
| #define LOG_TEST(x) gpr_log(GPR_INFO, "%s", #x) |
| |
| static gpr_mu* g_mu; |
| static grpc_pollset* g_pollset; |
| static int g_nconnects = 0; |
| |
| typedef struct on_connect_result { |
| /* Owns a ref to server. */ |
| grpc_tcp_server* server; |
| unsigned port_index; |
| unsigned fd_index; |
| } on_connect_result; |
| |
| typedef struct server_weak_ref { |
| grpc_tcp_server* server; |
| |
| /* arg is this server_weak_ref. */ |
| grpc_closure server_shutdown; |
| } server_weak_ref; |
| |
| static on_connect_result g_result = {NULL, 0, 0}; |
| |
| static void on_connect_result_init(on_connect_result* result) { |
| result->server = NULL; |
| result->port_index = 0; |
| result->fd_index = 0; |
| } |
| |
| static void on_connect_result_set(on_connect_result* result, |
| const grpc_tcp_server_acceptor* acceptor) { |
| result->server = grpc_tcp_server_ref(acceptor->from_server); |
| result->port_index = acceptor->port_index; |
| result->fd_index = acceptor->fd_index; |
| } |
| |
| static void server_weak_ref_shutdown(grpc_exec_ctx* exec_ctx, void* arg, |
| grpc_error* error) { |
| server_weak_ref* weak_ref = static_cast<server_weak_ref*>(arg); |
| weak_ref->server = NULL; |
| } |
| |
| static void server_weak_ref_init(server_weak_ref* weak_ref) { |
| weak_ref->server = NULL; |
| GRPC_CLOSURE_INIT(&weak_ref->server_shutdown, server_weak_ref_shutdown, |
| weak_ref, grpc_schedule_on_exec_ctx); |
| } |
| |
| /* Make weak_ref->server_shutdown a shutdown_starting cb on server. |
| grpc_tcp_server promises that the server object will live until |
| weak_ref->server_shutdown has returned. A strong ref on grpc_tcp_server |
| should be held until server_weak_ref_set() returns to avoid a race where the |
| server is deleted before the shutdown_starting cb is added. */ |
| static void server_weak_ref_set(server_weak_ref* weak_ref, |
| grpc_tcp_server* server) { |
| grpc_tcp_server_shutdown_starting_add(server, &weak_ref->server_shutdown); |
| weak_ref->server = server; |
| } |
| |
| static void on_connect(grpc_exec_ctx* exec_ctx, void* arg, grpc_endpoint* tcp, |
| grpc_pollset* pollset, |
| grpc_tcp_server_acceptor* acceptor) { |
| grpc_endpoint_shutdown(exec_ctx, tcp, |
| GRPC_ERROR_CREATE_FROM_STATIC_STRING("Connected")); |
| grpc_endpoint_destroy(exec_ctx, tcp); |
| |
| on_connect_result temp_result; |
| on_connect_result_set(&temp_result, acceptor); |
| gpr_free(acceptor); |
| |
| gpr_mu_lock(g_mu); |
| g_result = temp_result; |
| g_nconnects++; |
| GPR_ASSERT(GRPC_LOG_IF_ERROR("pollset_kick", |
| grpc_pollset_kick(exec_ctx, g_pollset, NULL))); |
| gpr_mu_unlock(g_mu); |
| } |
| |
| static void test_no_op(void) { |
| grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
| grpc_tcp_server* s; |
| GPR_ASSERT(GRPC_ERROR_NONE == |
| grpc_tcp_server_create(&exec_ctx, NULL, NULL, &s)); |
| grpc_tcp_server_unref(&exec_ctx, s); |
| grpc_exec_ctx_finish(&exec_ctx); |
| } |
| |
| static void test_no_op_with_start(void) { |
| grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
| grpc_tcp_server* s; |
| GPR_ASSERT(GRPC_ERROR_NONE == |
| grpc_tcp_server_create(&exec_ctx, NULL, NULL, &s)); |
| LOG_TEST("test_no_op_with_start"); |
| grpc_tcp_server_start(&exec_ctx, s, NULL, 0, on_connect, NULL); |
| grpc_tcp_server_unref(&exec_ctx, s); |
| grpc_exec_ctx_finish(&exec_ctx); |
| } |
| |
| static void test_no_op_with_port(void) { |
| grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
| grpc_resolved_address resolved_addr; |
| struct sockaddr_in* addr = (struct sockaddr_in*)resolved_addr.addr; |
| grpc_tcp_server* s; |
| GPR_ASSERT(GRPC_ERROR_NONE == |
| grpc_tcp_server_create(&exec_ctx, NULL, NULL, &s)); |
| LOG_TEST("test_no_op_with_port"); |
| |
| memset(&resolved_addr, 0, sizeof(resolved_addr)); |
| resolved_addr.len = sizeof(struct sockaddr_in); |
| addr->sin_family = AF_INET; |
| int port; |
| GPR_ASSERT(grpc_tcp_server_add_port(s, &resolved_addr, &port) == |
| GRPC_ERROR_NONE && |
| port > 0); |
| |
| grpc_tcp_server_unref(&exec_ctx, s); |
| grpc_exec_ctx_finish(&exec_ctx); |
| } |
| |
| static void test_no_op_with_port_and_start(void) { |
| grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
| grpc_resolved_address resolved_addr; |
| struct sockaddr_in* addr = (struct sockaddr_in*)resolved_addr.addr; |
| grpc_tcp_server* s; |
| GPR_ASSERT(GRPC_ERROR_NONE == |
| grpc_tcp_server_create(&exec_ctx, NULL, NULL, &s)); |
| LOG_TEST("test_no_op_with_port_and_start"); |
| int port; |
| |
| memset(&resolved_addr, 0, sizeof(resolved_addr)); |
| resolved_addr.len = sizeof(struct sockaddr_in); |
| addr->sin_family = AF_INET; |
| GPR_ASSERT(grpc_tcp_server_add_port(s, &resolved_addr, &port) == |
| GRPC_ERROR_NONE && |
| port > 0); |
| |
| grpc_tcp_server_start(&exec_ctx, s, NULL, 0, on_connect, NULL); |
| |
| grpc_tcp_server_unref(&exec_ctx, s); |
| grpc_exec_ctx_finish(&exec_ctx); |
| } |
| |
| static void connect_cb(uv_connect_t* req, int status) { |
| GPR_ASSERT(status == 0); |
| gpr_free(req); |
| } |
| |
| static void close_cb(uv_handle_t* handle) { gpr_free(handle); } |
| |
| static void tcp_connect(grpc_exec_ctx* exec_ctx, const struct sockaddr* remote, |
| socklen_t remote_len, on_connect_result* result) { |
| gpr_timespec deadline = grpc_timeout_seconds_to_deadline(10); |
| uv_tcp_t* client_handle = |
| static_cast<uv_tcp_t*>(gpr_malloc(sizeof(uv_tcp_t))); |
| uv_connect_t* req = |
| static_cast<uv_connect_t*>(gpr_malloc(sizeof(uv_connect_t))); |
| int nconnects_before; |
| |
| gpr_mu_lock(g_mu); |
| nconnects_before = g_nconnects; |
| on_connect_result_init(&g_result); |
| GPR_ASSERT(uv_tcp_init(uv_default_loop(), client_handle) == 0); |
| gpr_log(GPR_DEBUG, "start connect"); |
| GPR_ASSERT(uv_tcp_connect(req, client_handle, remote, connect_cb) == 0); |
| gpr_log(GPR_DEBUG, "wait"); |
| while (g_nconnects == nconnects_before && |
| gpr_time_cmp(deadline, gpr_now(deadline.clock_type)) > 0) { |
| grpc_pollset_worker* worker = NULL; |
| GPR_ASSERT(GRPC_LOG_IF_ERROR( |
| "pollset_work", |
| grpc_pollset_work(exec_ctx, g_pollset, &worker, |
| grpc_timespec_to_millis_round_up(deadline)))); |
| gpr_mu_unlock(g_mu); |
| grpc_exec_ctx_finish(exec_ctx); |
| gpr_mu_lock(g_mu); |
| } |
| gpr_log(GPR_DEBUG, "wait done"); |
| GPR_ASSERT(g_nconnects == nconnects_before + 1); |
| uv_close((uv_handle_t*)client_handle, close_cb); |
| *result = g_result; |
| |
| gpr_mu_unlock(g_mu); |
| } |
| |
| /* Tests a tcp server with multiple ports. */ |
| static void test_connect(unsigned n) { |
| grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
| grpc_resolved_address resolved_addr; |
| grpc_resolved_address resolved_addr1; |
| struct sockaddr_storage* addr = (struct sockaddr_storage*)resolved_addr.addr; |
| struct sockaddr_storage* addr1 = |
| (struct sockaddr_storage*)resolved_addr1.addr; |
| int svr_port; |
| int svr1_port; |
| grpc_tcp_server* s; |
| GPR_ASSERT(GRPC_ERROR_NONE == |
| grpc_tcp_server_create(&exec_ctx, NULL, NULL, &s)); |
| unsigned i; |
| server_weak_ref weak_ref; |
| server_weak_ref_init(&weak_ref); |
| LOG_TEST("test_connect"); |
| gpr_log(GPR_INFO, "clients=%d", n); |
| memset(&resolved_addr, 0, sizeof(resolved_addr)); |
| memset(&resolved_addr1, 0, sizeof(resolved_addr1)); |
| resolved_addr.len = sizeof(struct sockaddr_storage); |
| resolved_addr1.len = sizeof(struct sockaddr_storage); |
| addr->ss_family = addr1->ss_family = AF_INET; |
| GPR_ASSERT(GRPC_ERROR_NONE == |
| grpc_tcp_server_add_port(s, &resolved_addr, &svr_port)); |
| GPR_ASSERT(svr_port > 0); |
| GPR_ASSERT((uv_ip6_addr("::", svr_port, (struct sockaddr_in6*)addr)) == 0); |
| /* Cannot use wildcard (port==0), because add_port() will try to reuse the |
| same port as a previous add_port(). */ |
| svr1_port = grpc_pick_unused_port_or_die(); |
| grpc_sockaddr_set_port(&resolved_addr1, svr1_port); |
| GPR_ASSERT(grpc_tcp_server_add_port(s, &resolved_addr1, &svr_port) == |
| GRPC_ERROR_NONE && |
| svr_port == svr1_port); |
| |
| grpc_tcp_server_start(&exec_ctx, s, &g_pollset, 1, on_connect, NULL); |
| |
| GPR_ASSERT(uv_ip6_addr("::", svr_port, (struct sockaddr_in6*)addr1) == 0); |
| |
| for (i = 0; i < n; i++) { |
| on_connect_result result; |
| on_connect_result_init(&result); |
| tcp_connect(&exec_ctx, (struct sockaddr*)addr, (socklen_t)resolved_addr.len, |
| &result); |
| GPR_ASSERT(result.port_index == 0); |
| GPR_ASSERT(result.server == s); |
| if (weak_ref.server == NULL) { |
| server_weak_ref_set(&weak_ref, result.server); |
| } |
| grpc_tcp_server_unref(&exec_ctx, result.server); |
| |
| on_connect_result_init(&result); |
| tcp_connect(&exec_ctx, (struct sockaddr*)addr1, |
| (socklen_t)resolved_addr1.len, &result); |
| GPR_ASSERT(result.port_index == 1); |
| GPR_ASSERT(result.server == s); |
| grpc_tcp_server_unref(&exec_ctx, result.server); |
| } |
| |
| /* Weak ref to server valid until final unref. */ |
| GPR_ASSERT(weak_ref.server != NULL); |
| |
| grpc_tcp_server_unref(&exec_ctx, s); |
| grpc_exec_ctx_finish(&exec_ctx); |
| |
| /* Weak ref lost. */ |
| GPR_ASSERT(weak_ref.server == NULL); |
| } |
| |
| static void destroy_pollset(grpc_exec_ctx* exec_ctx, void* p, |
| grpc_error* error) { |
| grpc_pollset_destroy(exec_ctx, static_cast<grpc_pollset*>(p)); |
| } |
| |
| int main(int argc, char** argv) { |
| grpc_closure destroyed; |
| grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
| grpc_test_init(argc, argv); |
| grpc_init(); |
| g_pollset = static_cast<grpc_pollset*>(gpr_malloc(grpc_pollset_size())); |
| grpc_pollset_init(g_pollset, &g_mu); |
| |
| test_no_op(); |
| test_no_op_with_start(); |
| test_no_op_with_port(); |
| test_no_op_with_port_and_start(); |
| test_connect(1); |
| test_connect(10); |
| |
| GRPC_CLOSURE_INIT(&destroyed, destroy_pollset, g_pollset, |
| grpc_schedule_on_exec_ctx); |
| grpc_pollset_shutdown(&exec_ctx, g_pollset, &destroyed); |
| grpc_exec_ctx_finish(&exec_ctx); |
| grpc_shutdown(); |
| gpr_free(g_pollset); |
| return 0; |
| } |
| |
| #else /* GRPC_UV */ |
| |
| int main(int argc, char** argv) { return 1; } |
| |
| #endif /* GRPC_UV */ |