?? gettimeofday.c
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#ifndef LINTstatic const char rcsid[] = "$Id: gettimeofday.c,v 1.1.2.2 2002/07/12 00:49:51 marka Exp $";#endif#include "port_before.h"#include <stdio.h>#include <syslog.h>#include <sys/time.h>#include "port_after.h"#if !defined(NEED_GETTIMEOFDAY)/* * gettimeofday() occasionally returns invalid tv_usec on some platforms. */#define MILLION 1000000#undef gettimeofdayintisc__gettimeofday(struct timeval *tp, struct timezone *tzp) { int res; res = gettimeofday(tp, tzp); if (res < 0) return (res); if (tp == NULL) return (res); if (tp->tv_usec < 0) { do { tp->tv_usec += MILLION; tp->tv_sec--; } while (tp->tv_usec < 0); goto log; } else if (tp->tv_usec > MILLION) { do { tp->tv_usec -= MILLION; tp->tv_sec++; } while (tp->tv_usec > MILLION); goto log; } return (res); log: syslog(LOG_ERR, "gettimeofday: tv_usec out of range\n"); return (res);}#elseintgettimeofday(struct timeval *tvp, struct _TIMEZONE *tzp) { time_t clock, time(time_t *); if (time(&clock) == (time_t) -1) return (-1); if (tvp) { tvp->tv_sec = clock; tvp->tv_usec = 0; } if (tzp) { tzp->tz_minuteswest = 0; tzp->tz_dsttime = 0; } return (0);}#endif /*NEED_GETTIMEOFDAY*/?? 快捷鍵說明
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