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_WINSOCK_SOCKET
24
25 #include <grpc/support/log.h>
26
27 #include "src/core/lib/experiments/experiments.h"
28 #include "src/core/lib/gprpp/crash.h"
29 #include "src/core/lib/iomgr/iocp_windows.h"
30 #include "src/core/lib/iomgr/iomgr.h"
31 #include "src/core/lib/iomgr/pollset_windows.h"
32 #include "src/core/lib/iomgr/resolve_address.h"
33 #include "src/core/lib/iomgr/resolve_address_windows.h"
34 #include "src/core/lib/iomgr/sockaddr_windows.h"
35 #include "src/core/lib/iomgr/socket_windows.h"
36 #include "src/core/lib/iomgr/tcp_client.h"
37 #include "src/core/lib/iomgr/tcp_server.h"
38 #include "src/core/lib/iomgr/timer.h"
39
40 extern grpc_tcp_server_vtable grpc_windows_tcp_server_vtable;
41 extern grpc_tcp_server_vtable grpc_windows_event_engine_tcp_server_vtable;
42 extern grpc_tcp_client_vtable grpc_windows_tcp_client_vtable;
43 extern grpc_timer_vtable grpc_generic_timer_vtable;
44 extern grpc_pollset_vtable grpc_windows_pollset_vtable;
45 extern grpc_pollset_set_vtable grpc_windows_pollset_set_vtable;
46
47 // Windows' io manager is going to be fully designed using IO completion
48 // ports. All of what we're doing here is basically make sure that
49 // Windows sockets are initialized in and out.
50
winsock_init(void)51 static void winsock_init(void) {
52 WSADATA wsaData;
53 int status = WSAStartup(MAKEWORD(2, 0), &wsaData);
54 GPR_ASSERT(status == 0);
55 }
56
winsock_shutdown(void)57 static void winsock_shutdown(void) {
58 int status = WSACleanup();
59 GPR_ASSERT(status == 0);
60 }
61
iomgr_platform_init(void)62 static void iomgr_platform_init(void) {
63 winsock_init();
64 grpc_iocp_init();
65 grpc_pollset_global_init();
66 grpc_wsa_socket_flags_init();
67 grpc_core::ResetDNSResolver(std::make_unique<grpc_core::NativeDNSResolver>());
68 }
69
iomgr_platform_flush(void)70 static void iomgr_platform_flush(void) { grpc_iocp_flush(); }
71
iomgr_platform_shutdown(void)72 static void iomgr_platform_shutdown(void) {
73 grpc_pollset_global_shutdown();
74 grpc_iocp_shutdown();
75 winsock_shutdown();
76 grpc_core::ResetDNSResolver(nullptr); // delete the resolver
77 }
78
iomgr_platform_shutdown_background_closure(void)79 static void iomgr_platform_shutdown_background_closure(void) {}
80
iomgr_platform_is_any_background_poller_thread(void)81 static bool iomgr_platform_is_any_background_poller_thread(void) {
82 return false;
83 }
84
iomgr_platform_add_closure_to_background_poller(grpc_closure *,grpc_error_handle)85 static bool iomgr_platform_add_closure_to_background_poller(
86 grpc_closure* /* closure */, grpc_error_handle /* error */) {
87 return false;
88 }
89
90 static grpc_iomgr_platform_vtable vtable = {
91 iomgr_platform_init,
92 iomgr_platform_flush,
93 iomgr_platform_shutdown,
94 iomgr_platform_shutdown_background_closure,
95 iomgr_platform_is_any_background_poller_thread,
96 iomgr_platform_add_closure_to_background_poller};
97
grpc_set_default_iomgr_platform()98 void grpc_set_default_iomgr_platform() {
99 grpc_set_tcp_client_impl(&grpc_windows_tcp_client_vtable);
100 if (grpc_core::IsEventEngineListenerEnabled()) {
101 grpc_set_tcp_server_impl(&grpc_windows_event_engine_tcp_server_vtable);
102 } else {
103 grpc_set_tcp_server_impl(&grpc_windows_tcp_server_vtable);
104 }
105 grpc_set_timer_impl(&grpc_generic_timer_vtable);
106 grpc_set_pollset_vtable(&grpc_windows_pollset_vtable);
107 grpc_set_pollset_set_vtable(&grpc_windows_pollset_set_vtable);
108 grpc_set_iomgr_platform_vtable(&vtable);
109 }
110
grpc_iomgr_run_in_background()111 bool grpc_iomgr_run_in_background() { return false; }
112
113 #endif // GRPC_WINSOCK_SOCKET
114