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[/] [or1k/] [trunk/] [newlib/] [newlib/] [libc/] [reent/] [timer.c] - Rev 1775
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/* Reentrant versions of times and gettimeofday system calls for the clock and time ANSI C routines. This implementation just calls the times/gettimeofday system calls. Gettimeofday may not be available on all targets. It's presence here is dubious. Consider it for internal use only. */ #include <reent.h> #include <time.h> #include <sys/times.h> #include <_syslist.h> /* Some targets provides their own versions of these functions. Those targets should define REENTRANT_SYSCALLS_PROVIDED in TARGET_CFLAGS. */ #ifdef _REENT_ONLY #ifndef REENTRANT_SYSCALLS_PROVIDED #define REENTRANT_SYSCALLS_PROVIDED #endif #endif #ifdef REENTRANT_SYSCALLS_PROVIDED int _dummy_time_syscalls = 1; #else /* We use the errno variable used by the system dependent layer. */ #undef errno extern int errno; /* FUNCTION <<_times_r>>---Reentrant version of times INDEX _times_r ANSI_SYNOPSIS #include <reent.h> #include <sys/times.h> clock_t _times_r(struct _reent *<[ptr]>, struct tms *<[ptms]>); TRAD_SYNOPSIS #include <reent.h> #include <sys/times.h> clock_t _times_r(<[ptr]>, <[ptms]>) struct _reent *<[ptr]>; struct tms *<[ptms]>; DESCRIPTION This is a reentrant version of <<times>>. It takes a pointer to the global data block, which holds <<errno>>. */ clock_t _times_r (ptr, ptms) struct _reent *ptr; struct tms *ptms; { clock_t ret; ret = _times (ptms); return ret; } /* FUNCTION <<_gettimeofday_r>>---Reentrant version of gettimeofday INDEX _gettimeofday_r ANSI_SYNOPSIS #include <reent.h> #include <time.h> int _gettimeofday_r(struct _reent *<[ptr]>, struct timeval *<[ptimeval]>, struct timezone *<[ptimezone]>); TRAD_SYNOPSIS #include <reent.h> #include <time.h> int _gettimeofday_r(<[ptr]>, <[ptimeval]>, <[ptimezone]>) struct _reent *<[ptr]>; struct timeval *<[ptimeval]>; struct timezone *<[ptimezone]>; DESCRIPTION This is a reentrant version of <<gettimeofday>>. It takes a pointer to the global data block, which holds <<errno>>. This function is only available for a few targets. Check libc.a to see if its available on yours. */ int _gettimeofday_r (ptr, ptimeval, ptimezone) struct _reent *ptr; struct timeval *ptimeval; struct timezone *ptimezone; { int ret; errno = 0; if ((ret = _gettimeofday (ptimeval, ptimezone)) == -1 && errno != 0) ptr->_errno = errno; return ret; } #endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */
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