comparison: libgaim/protocols/zephyr/ZWait4Not.c
libgaim/protocols/zephyr/ZWait4Not.c
- changeset 14254
- 77edc7a6191a
- parent 14253
- b63ebf84c42b
- child 20470
- 77693555855f
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| 14253:b63ebf84c42b | 14254:77edc7a6191a |
|---|---|
| 1 /* This file is part of the Project Athena Zephyr Notification System. | |
| 2 * It contains the ZCheckIfNotice/select loop used for waiting for | |
| 3 * a notice, with a timeout. | |
| 4 * | |
| 5 * Copyright (c) 1991 by the Massachusetts Institute of Technology. | |
| 6 * For copying and distribution information, see the file | |
| 7 * "mit-copyright.h". | |
| 8 */ | |
| 9 | |
| 10 #include "internal.h" | |
| 11 | |
| 12 #ifdef WIN32 | |
| 13 #include <winsock2.h> | |
| 14 | |
| 15 #ifndef ZEPHYR_USES_KERBEROS | |
| 16 static int gettimeofday(struct timeval* tv, struct timezone* tz){ | |
| 17 union { | |
| 18 long long ns100; /*time since 1 Jan 1601 in 100ns units */ | |
| 19 FILETIME ft; | |
| 20 } _now; | |
| 21 | |
| 22 GetSystemTimeAsFileTime( &(_now.ft) ); | |
| 23 tv->tv_usec=(long)((_now.ns100 / 10LL) % 1000000LL ); | |
| 24 tv->tv_sec= (long)((_now.ns100-(116444736000000000LL))/10000000LL); | |
| 25 return 0; | |
| 26 } | |
| 27 #endif | |
| 28 | |
| 29 #else | |
| 30 #include <sys/socket.h> | |
| 31 #endif | |
| 32 | |
| 33 Code_t Z_WaitForNotice (notice, pred, arg, timeout) | |
| 34 ZNotice_t *notice; | |
| 35 int (*pred) __P((ZNotice_t *, void *)); | |
| 36 void *arg; | |
| 37 int timeout; | |
| 38 { | |
| 39 Code_t retval; | |
| 40 struct timeval tv, t0; | |
| 41 fd_set fdmask; | |
| 42 int i, fd; | |
| 43 | |
| 44 retval = ZCheckIfNotice (notice, (struct sockaddr_in *) 0, pred, | |
| 45 (char *) arg); | |
| 46 if (retval == ZERR_NONE) | |
| 47 return ZERR_NONE; | |
| 48 if (retval != ZERR_NONOTICE) | |
| 49 return retval; | |
| 50 | |
| 51 fd = ZGetFD (); | |
| 52 FD_ZERO (&fdmask); | |
| 53 tv.tv_sec = timeout; | |
| 54 tv.tv_usec = 0; | |
| 55 gettimeofday (&t0, (struct timezone *)NULL); | |
| 56 t0.tv_sec += timeout; | |
| 57 while (1) { | |
| 58 FD_SET (fd, &fdmask); | |
| 59 i = select (fd + 1, &fdmask, (fd_set *) 0, (fd_set *) 0, &tv); | |
| 60 if (i == 0) | |
| 61 return ETIMEDOUT; | |
| 62 if (i < 0 && errno != EINTR) | |
| 63 return errno; | |
| 64 if (i > 0) { | |
| 65 retval = ZCheckIfNotice (notice, (struct sockaddr_in *) 0, pred, | |
| 66 (char *) arg); | |
| 67 if (retval != ZERR_NONOTICE) /* includes ZERR_NONE */ | |
| 68 return retval; | |
| 69 } | |
| 70 gettimeofday (&tv, (struct timezone *) NULL); | |
| 71 tv.tv_usec = t0.tv_usec - tv.tv_usec; | |
| 72 if (tv.tv_usec < 0) { | |
| 73 tv.tv_usec += 1000000; | |
| 74 tv.tv_sec = t0.tv_sec - tv.tv_sec - 1; | |
| 75 } | |
| 76 else | |
| 77 tv.tv_sec = t0.tv_sec - tv.tv_sec; | |
| 78 } | |
| 79 /*NOTREACHED*/ | |
| 80 } |
