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Diffstat (limited to 'cpukit/posix/src/clockgettime.c')
-rw-r--r-- | cpukit/posix/src/clockgettime.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/cpukit/posix/src/clockgettime.c b/cpukit/posix/src/clockgettime.c new file mode 100644 index 0000000000..852ac8e039 --- /dev/null +++ b/cpukit/posix/src/clockgettime.c @@ -0,0 +1,65 @@ +/* + * COPYRIGHT (c) 1989-2007. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.com/license/LICENSE. + * + * $Id$ + */ + +#if HAVE_CONFIG_H +#include "config.h" +#endif + +#include <time.h> +#include <errno.h> + +#include <rtems/system.h> +#include <rtems/score/isr.h> +#include <rtems/score/thread.h> +#include <rtems/score/tod.h> + +#include <rtems/seterr.h> + +/*PAGE + * + * 14.2.1 Clocks, P1003.1b-1993, p. 263 + */ + +int clock_gettime( + clockid_t clock_id, + struct timespec *tp +) +{ + if ( !tp ) + rtems_set_errno_and_return_minus_one( EINVAL ); + + if ( clock_id == CLOCK_REALTIME ) { + _TOD_Get(tp); + return 0; + } +#ifdef CLOCK_MONOTONIC + if ( clock_id == CLOCK_MONOTONIC ) { + _TOD_Get_uptime_as_timespec( tp ); + return 0; + } +#endif + +#ifdef _POSIX_CPUTIME + if ( clock_id == CLOCK_PROCESS_CPUTIME ) { + _TOD_Get_uptime_as_timespec( tp ); + return 0; + } +#endif + +#ifdef _POSIX_THREAD_CPUTIME + if ( clock_id == CLOCK_THREAD_CPUTIME ) + rtems_set_errno_and_return_minus_one( ENOSYS ); +#endif + + rtems_set_errno_and_return_minus_one( EINVAL ); + + return 0; +} |