1 #include "private-libwebsockets.h"
6 #define DELTA_EPOCH_IN_MICROSECS 11644473600000000ULL
8 ULARGE_INTEGER datetime;
11 GetCurrentFT(&filetime);
13 GetSystemTimeAsFileTime(&filetime);
17 * As per Windows documentation for FILETIME, copy the resulting FILETIME structure to a
18 * ULARGE_INTEGER structure using memcpy (using memcpy instead of direct assignment can
19 * prevent alignment faults on 64-bit Windows).
21 memcpy(&datetime, &filetime, sizeof(datetime));
23 /* Windows file times are in 100s of nanoseconds. */
24 return (datetime.QuadPart - DELTA_EPOCH_IN_MICROSECS) / 10;
28 time_t time(time_t *t)
30 time_t ret = time_in_microseconds() / 1000000;
36 LWS_VISIBLE int libwebsockets_get_random(struct libwebsocket_context *context,
40 char *p = (char *)buf;
42 for (n = 0; n < len; n++)
43 p[n] = (unsigned char)rand();
48 LWS_VISIBLE int lws_send_pipe_choked(struct libwebsocket *wsi)
50 return wsi->sock_send_blocking;
53 LWS_VISIBLE int lws_poll_listen_fd(struct libwebsocket_pollfd *fd)
56 struct timeval tv = { 0, 0 };
58 assert(fd->events == LWS_POLLIN);
61 FD_SET(fd->fd, &readfds);
63 return select(fd->fd + 1, &readfds, NULL, NULL, &tv);
67 * libwebsocket_cancel_service() - Cancel servicing of pending websocket activity
68 * @context: Websocket context
70 * This function let a call to libwebsocket_service() waiting for a timeout
74 libwebsocket_cancel_service(struct libwebsocket_context *context)
76 WSASetEvent(context->events[0]);
79 LWS_VISIBLE void lwsl_emit_syslog(int level, const char *line)
81 lwsl_emit_stderr(level, line);
85 lws_plat_service(struct libwebsocket_context *context, int timeout_ms)
90 WSANETWORKEVENTS networkevents;
91 struct libwebsocket_pollfd *pfd;
93 /* stay dead once we are dead */
98 context->service_tid = context->protocols[0].callback(context, NULL,
99 LWS_CALLBACK_GET_THREAD_ID, NULL, NULL, 0);
101 for (i = 0; i < context->fds_count; ++i) {
102 pfd = &context->fds[i];
103 if (pfd->fd == context->listen_service_fd)
106 if (pfd->events & LWS_POLLOUT) {
107 if (context->lws_lookup[pfd->fd]->sock_send_blocking)
109 pfd->revents = LWS_POLLOUT;
110 n = libwebsocket_service_fd(context, pfd);
116 ev = WSAWaitForMultipleEvents(context->fds_count + 1,
117 context->events, FALSE, timeout_ms, FALSE);
118 context->service_tid = 0;
120 if (ev == WSA_WAIT_TIMEOUT) {
121 libwebsocket_service_fd(context, NULL);
125 if (ev == WSA_WAIT_EVENT_0) {
126 WSAResetEvent(context->events[0]);
130 if (ev < WSA_WAIT_EVENT_0 || ev > WSA_WAIT_EVENT_0 + context->fds_count)
133 pfd = &context->fds[ev - WSA_WAIT_EVENT_0 - 1];
135 if (WSAEnumNetworkEvents(pfd->fd,
136 context->events[ev - WSA_WAIT_EVENT_0],
137 &networkevents) == SOCKET_ERROR) {
138 lwsl_err("WSAEnumNetworkEvents() failed with error %d\n",
143 pfd->revents = networkevents.lNetworkEvents;
145 if (pfd->revents & LWS_POLLOUT)
146 context->lws_lookup[pfd->fd]->sock_send_blocking = FALSE;
148 return libwebsocket_service_fd(context, pfd);
152 lws_plat_set_socket_options(struct libwebsocket_context *context, int fd)
155 int optlen = sizeof(optval);
158 struct tcp_keepalive alive;
159 struct protoent *tcp_proto;
161 if (context->ka_time) {
162 /* enable keepalive on this socket */
164 if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE,
165 (const char *)&optval, optlen) < 0)
169 alive.keepalivetime = context->ka_time;
170 alive.keepaliveinterval = context->ka_interval;
172 if (WSAIoctl(fd, SIO_KEEPALIVE_VALS, &alive, sizeof(alive),
173 NULL, 0, &dwBytesRet, NULL, NULL))
179 tcp_proto = getprotobyname("TCP");
180 setsockopt(fd, tcp_proto->p_proto, TCP_NODELAY, (const char *)&optval, optlen);
182 /* We are nonblocking... */
183 ioctlsocket(fd, FIONBIO, &optl);
189 lws_plat_drop_app_privileges(struct lws_context_creation_info *info)
194 lws_plat_init_fd_tables(struct libwebsocket_context *context)
196 context->events = (WSAEVENT *)malloc(sizeof(WSAEVENT) *
197 (context->max_fds + 1));
198 if (context->events == NULL) {
199 lwsl_err("Unable to allocate events array for %d connections\n",
204 context->fds_count = 0;
205 context->events[0] = WSACreateEvent();
207 context->fd_random = 0;
213 lws_plat_context_early_init(void)
215 WORD wVersionRequested;
219 /* Use the MAKEWORD(lowbyte, highbyte) macro from Windef.h */
220 wVersionRequested = MAKEWORD(2, 2);
222 err = WSAStartup(wVersionRequested, &wsaData);
226 * Tell the user that we could not find a usable
229 lwsl_err("WSAStartup failed with error: %d\n", err);
235 lws_plat_context_early_destroy(struct libwebsocket_context *context)
237 if (context->events) {
238 WSACloseEvent(context->events[0]);
239 free(context->events);
244 lws_plat_context_late_destroy(struct libwebsocket_context *context)
250 interface_to_sa(struct libwebsocket_context *context,
251 const char *ifname, struct sockaddr_in *addr, size_t addrlen)
257 lws_plat_insert_socket_into_fds(struct libwebsocket_context *context,
258 struct libwebsocket *wsi)
260 context->fds[context->fds_count++].revents = 0;
261 context->events[context->fds_count] = WSACreateEvent();
262 WSAEventSelect(wsi->sock, context->events[context->fds_count], LWS_POLLIN);
266 lws_plat_delete_socket_from_fds(struct libwebsocket_context *context,
267 struct libwebsocket *wsi, int m)
269 WSACloseEvent(context->events[m + 1]);
270 context->events[m + 1] = context->events[context->fds_count + 1];
274 lws_plat_service_periodic(struct libwebsocket_context *context)
279 lws_plat_change_pollfd(struct libwebsocket_context *context,
280 struct libwebsocket *wsi, struct libwebsocket_pollfd *pfd)
282 long networkevents = LWS_POLLOUT | LWS_POLLHUP;
284 if ((pfd->events & LWS_POLLIN))
285 networkevents |= LWS_POLLIN;
287 if (WSAEventSelect(wsi->sock,
288 context->events[wsi->position_in_fds_table + 1],
289 networkevents) != SOCKET_ERROR)
292 lwsl_err("WSAEventSelect() failed with error %d\n", LWS_ERRNO);
298 lws_plat_open_file(const char* filename, unsigned long* filelen)
301 WCHAR buffer[MAX_PATH];
303 MultiByteToWideChar(CP_UTF8, 0, filename, -1, buffer,
304 sizeof(buffer) / sizeof(buffer[0]));
305 ret = CreateFileW(buffer, GENERIC_READ, FILE_SHARE_READ,
306 NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
308 if (ret != LWS_INVALID_FILE)
309 *filelen = GetFileSize(ret, NULL);
314 LWS_VISIBLE const char *
315 lws_plat_inet_ntop(int af, const void *src, char *dst, int cnt)
318 DWORD bufferlen = cnt;
321 buffer = malloc(bufferlen);
323 lwsl_err("Out of memory\n");
328 struct sockaddr_in srcaddr;
329 bzero(&srcaddr, sizeof(srcaddr));
330 srcaddr.sin_family = AF_INET;
331 memcpy(&(srcaddr.sin_addr), src, sizeof(srcaddr.sin_addr));
333 if (!WSAAddressToStringW((struct sockaddr*)&srcaddr, sizeof(srcaddr), 0, buffer, &bufferlen))
336 } else if (af == AF_INET6) {
337 struct sockaddr_in6 srcaddr;
338 bzero(&srcaddr, sizeof(srcaddr));
339 srcaddr.sin6_family = AF_INET6;
340 memcpy(&(srcaddr.sin6_addr), src, sizeof(srcaddr.sin6_addr));
342 if (!WSAAddressToStringW((struct sockaddr*)&srcaddr, sizeof(srcaddr), 0, buffer, &bufferlen))
346 lwsl_err("Unsupported type\n");
349 int rv = WSAGetLastError();
350 lwsl_err("WSAAddressToString() : %d\n", rv);
352 if (WideCharToMultiByte(CP_ACP, 0, buffer, bufferlen, dst, cnt, 0, NULL) <= 0)
357 return ok ? dst : NULL;