1 /* 2 * 3 * Copyright 2015 gRPC authors. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 */ 18 19 #include <grpc/support/port_platform.h> 20 21 #include "src/core/lib/iomgr/port.h" 22 23 #ifdef GRPC_CFSTREAM_IOMGR 24 25 #include "src/core/lib/debug/trace.h" 26 #include "src/core/lib/iomgr/ev_posix.h" 27 #include "src/core/lib/iomgr/iomgr_internal.h" 28 #include "src/core/lib/iomgr/iomgr_posix.h" 29 #include "src/core/lib/iomgr/resolve_address.h" 30 #include "src/core/lib/iomgr/tcp_client.h" 31 #include "src/core/lib/iomgr/tcp_posix.h" 32 #include "src/core/lib/iomgr/tcp_server.h" 33 #include "src/core/lib/iomgr/timer.h" 34 35 static const char* grpc_cfstream_env_var = "grpc_cfstream"; 36 37 extern grpc_tcp_server_vtable grpc_posix_tcp_server_vtable; 38 extern grpc_tcp_client_vtable grpc_posix_tcp_client_vtable; 39 extern grpc_tcp_client_vtable grpc_cfstream_client_vtable; 40 extern grpc_timer_vtable grpc_generic_timer_vtable; 41 extern grpc_pollset_vtable grpc_posix_pollset_vtable; 42 extern grpc_pollset_set_vtable grpc_posix_pollset_set_vtable; 43 extern grpc_address_resolver_vtable grpc_posix_resolver_vtable; 44 iomgr_platform_init(void)45static void iomgr_platform_init(void) { 46 grpc_wakeup_fd_global_init(); 47 grpc_event_engine_init(); 48 } 49 iomgr_platform_flush(void)50static void iomgr_platform_flush(void) {} 51 iomgr_platform_shutdown(void)52static void iomgr_platform_shutdown(void) { 53 grpc_event_engine_shutdown(); 54 grpc_wakeup_fd_global_destroy(); 55 } 56 57 static grpc_iomgr_platform_vtable vtable = { 58 iomgr_platform_init, iomgr_platform_flush, iomgr_platform_shutdown}; 59 grpc_set_default_iomgr_platform()60void grpc_set_default_iomgr_platform() { 61 char* enable_cfstream = getenv(grpc_cfstream_env_var); 62 grpc_tcp_client_vtable* client_vtable = &grpc_posix_tcp_client_vtable; 63 if (enable_cfstream != nullptr && enable_cfstream[0] == '1') { 64 client_vtable = &grpc_cfstream_client_vtable; 65 } 66 grpc_set_tcp_client_impl(client_vtable); 67 grpc_set_tcp_server_impl(&grpc_posix_tcp_server_vtable); 68 grpc_set_timer_impl(&grpc_generic_timer_vtable); 69 grpc_set_pollset_vtable(&grpc_posix_pollset_vtable); 70 grpc_set_pollset_set_vtable(&grpc_posix_pollset_set_vtable); 71 grpc_set_resolver_impl(&grpc_posix_resolver_vtable); 72 grpc_set_iomgr_platform_vtable(&vtable); 73 } 74 75 #endif /* GRPC_CFSTREAM_IOMGR */ 76