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68 lines
1.5 KiB
C
68 lines
1.5 KiB
C
/* Reentrant version of gettimeofday system call
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This implementation just calls the times/gettimeofday system calls.
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Gettimeofday may not be available on all targets. It's presence
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here is dubious. Consider it for internal use only. */
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#include <reent.h>
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#include <time.h>
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#include <sys/time.h>
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#include <sys/times.h>
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#include <_syslist.h>
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/* Some targets provides their own versions of these functions. Those
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targets should define REENTRANT_SYSCALLS_PROVIDED in TARGET_CFLAGS. */
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#ifdef _REENT_ONLY
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#ifndef REENTRANT_SYSCALLS_PROVIDED
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#define REENTRANT_SYSCALLS_PROVIDED
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#endif
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#endif
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#ifdef REENTRANT_SYSCALLS_PROVIDED
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int _dummy_gettimeofday_syscalls = 1;
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#else
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/* We use the errno variable used by the system dependent layer. */
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#undef errno
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extern int errno;
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/*
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FUNCTION
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<<_gettimeofday_r>>---Reentrant version of gettimeofday
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INDEX
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_gettimeofday_r
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SYNOPSIS
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#include <reent.h>
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#include <time.h>
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int _gettimeofday_r(struct _reent *<[ptr]>,
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struct timeval *<[ptimeval]>,
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void *<[ptimezone]>);
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DESCRIPTION
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This is a reentrant version of <<gettimeofday>>. It
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takes a pointer to the global data block, which holds
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<<errno>>.
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This function is only available for a few targets.
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Check libc.a to see if its available on yours.
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*/
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int
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_gettimeofday_r (struct _reent *ptr,
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struct timeval *ptimeval,
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void *ptimezone)
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{
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int ret;
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errno = 0;
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if ((ret = _gettimeofday (ptimeval, ptimezone)) == -1 && errno != 0)
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ptr->_errno = errno;
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return ret;
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}
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#endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */
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