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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 2001-2009 Oracle. All rights reserved.
*
* $Id$
*/
#include "db_config.h"
#include "db_int.h"
/*
* __os_gettime --
* Return the current time-of-day clock in seconds and nanoseconds.
*
* PUBLIC: void __os_gettime __P((ENV *, db_timespec *, int));
*/
void
__os_gettime(env, tp, monotonic)
ENV *env;
db_timespec *tp;
int monotonic;
{
const char *sc;
int ret;
#if defined(HAVE_CLOCK_GETTIME)
#if defined(HAVE_CLOCK_MONOTONIC)
if (monotonic)
RETRY_CHK((clock_gettime(
CLOCK_MONOTONIC, (struct timespec *)tp)), ret);
else
#endif
RETRY_CHK((clock_gettime(
CLOCK_REALTIME, (struct timespec *)tp)), ret);
RETRY_CHK((clock_gettime(CLOCK_REALTIME, (struct timespec *)tp)), ret);
if (ret != 0) {
sc = "clock_gettime";
goto err;
}
#elif defined(HAVE_GETTIMEOFDAY)
struct timeval v;
RETRY_CHK((gettimeofday(&v, NULL)), ret);
if (ret != 0) {
sc = "gettimeofday";
goto err;
}
tp->tv_sec = v.tv_sec;
tp->tv_nsec = v.tv_usec * NS_PER_US;
#elif defined(HAVE_TIME)
time_t now;
RETRY_CHK((time(&now) == (time_t)-1 ? 1 : 0), ret);
if (ret != 0) {
sc = "time";
goto err;
}
tp->tv_sec = now;
tp->tv_nsec = 0;
#else
NO AVAILABLE CLOCK IMPLEMENTATION
#endif
COMPQUIET(monotonic, 0);
return;
err: __db_syserr(env, ret, "%s", sc);
(void)__env_panic(env, __os_posix_err(ret));
}
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