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/*-
* Copyright (c) 2014-2016 MongoDB, Inc.
* Copyright (c) 2008-2014 WiredTiger, Inc.
* All rights reserved.
*
* See the file LICENSE for redistribution information.
*/
#include "wt_internal.h"
/*
* __wt_epoch --
* Return the time since the Epoch.
*/
void
__wt_epoch(WT_SESSION_IMPL *session, struct timespec *tsp)
WT_GCC_FUNC_ATTRIBUTE((visibility("default")))
{
WT_DECL_RET;
/*
* This function doesn't return an error, but panics on failure (which
* should never happen, it's done this way to simplify error handling
* in the caller). However, some compilers complain about using garbage
* values. Initializing the values avoids the complaint.
*/
tsp->tv_sec = 0;
tsp->tv_nsec = 0;
#if defined(HAVE_CLOCK_GETTIME)
WT_SYSCALL_RETRY(clock_gettime(CLOCK_REALTIME, tsp), ret);
if (ret == 0)
return;
WT_PANIC_MSG(session, ret, "clock_gettime");
#elif defined(HAVE_GETTIMEOFDAY)
struct timeval v;
WT_SYSCALL_RETRY(gettimeofday(&v, NULL), ret);
if (ret == 0) {
tsp->tv_sec = v.tv_sec;
tsp->tv_nsec = v.tv_usec * WT_THOUSAND;
return;
}
WT_PANIC_MSG(session, ret, "gettimeofday");
#else
NO TIME-OF-DAY IMPLEMENTATION: see src/os_posix/os_time.c
#endif
}
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