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comparison: ipc/chromium/src/third_party/libevent/sample/time-test.c
ipc/chromium/src/third_party/libevent/sample/time-test.c
- branch
- TOR_BUG_3246
- changeset 6
- 8bccb770b82d
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| -1:000000000000 | 0:0a2d97d1128e |
|---|---|
| 1 /* | |
| 2 * XXX This sample code was once meant to show how to use the basic Libevent | |
| 3 * interfaces, but it never worked on non-Unix platforms, and some of the | |
| 4 * interfaces have changed since it was first written. It should probably | |
| 5 * be removed or replaced with something better. | |
| 6 * | |
| 7 * Compile with: | |
| 8 * cc -I/usr/local/include -o time-test time-test.c -L/usr/local/lib -levent | |
| 9 */ | |
| 10 | |
| 11 #include <sys/types.h> | |
| 12 | |
| 13 #include <event2/event-config.h> | |
| 14 | |
| 15 #include <sys/stat.h> | |
| 16 #ifndef WIN32 | |
| 17 #include <sys/queue.h> | |
| 18 #include <unistd.h> | |
| 19 #endif | |
| 20 #include <time.h> | |
| 21 #ifdef _EVENT_HAVE_SYS_TIME_H | |
| 22 #include <sys/time.h> | |
| 23 #endif | |
| 24 #include <fcntl.h> | |
| 25 #include <stdlib.h> | |
| 26 #include <stdio.h> | |
| 27 #include <string.h> | |
| 28 #include <errno.h> | |
| 29 | |
| 30 #include <event2/event.h> | |
| 31 #include <event2/event_struct.h> | |
| 32 #include <event2/util.h> | |
| 33 | |
| 34 #ifdef WIN32 | |
| 35 #include <winsock2.h> | |
| 36 #endif | |
| 37 | |
| 38 struct timeval lasttime; | |
| 39 | |
| 40 int event_is_persistent; | |
| 41 | |
| 42 static void | |
| 43 timeout_cb(evutil_socket_t fd, short event, void *arg) | |
| 44 { | |
| 45 struct timeval newtime, difference; | |
| 46 struct event *timeout = arg; | |
| 47 double elapsed; | |
| 48 | |
| 49 evutil_gettimeofday(&newtime, NULL); | |
| 50 evutil_timersub(&newtime, &lasttime, &difference); | |
| 51 elapsed = difference.tv_sec + | |
| 52 (difference.tv_usec / 1.0e6); | |
| 53 | |
| 54 printf("timeout_cb called at %d: %.3f seconds elapsed.\n", | |
| 55 (int)newtime.tv_sec, elapsed); | |
| 56 lasttime = newtime; | |
| 57 | |
| 58 if (! event_is_persistent) { | |
| 59 struct timeval tv; | |
| 60 evutil_timerclear(&tv); | |
| 61 tv.tv_sec = 2; | |
| 62 event_add(timeout, &tv); | |
| 63 } | |
| 64 } | |
| 65 | |
| 66 int | |
| 67 main(int argc, char **argv) | |
| 68 { | |
| 69 struct event timeout; | |
| 70 struct timeval tv; | |
| 71 struct event_base *base; | |
| 72 int flags; | |
| 73 | |
| 74 #ifdef WIN32 | |
| 75 WORD wVersionRequested; | |
| 76 WSADATA wsaData; | |
| 77 | |
| 78 wVersionRequested = MAKEWORD(2, 2); | |
| 79 | |
| 80 (void)WSAStartup(wVersionRequested, &wsaData); | |
| 81 #endif | |
| 82 | |
| 83 if (argc == 2 && !strcmp(argv[1], "-p")) { | |
| 84 event_is_persistent = 1; | |
| 85 flags = EV_PERSIST; | |
| 86 } else { | |
| 87 event_is_persistent = 0; | |
| 88 flags = 0; | |
| 89 } | |
| 90 | |
| 91 /* Initalize the event library */ | |
| 92 base = event_base_new(); | |
| 93 | |
| 94 /* Initalize one event */ | |
| 95 event_assign(&timeout, base, -1, flags, timeout_cb, (void*) &timeout); | |
| 96 | |
| 97 evutil_timerclear(&tv); | |
| 98 tv.tv_sec = 2; | |
| 99 event_add(&timeout, &tv); | |
| 100 | |
| 101 evutil_gettimeofday(&lasttime, NULL); | |
| 102 | |
| 103 event_base_dispatch(base); | |
| 104 | |
| 105 return (0); | |
| 106 } | |
| 107 |
