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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-07-22 15:03:04 +0200 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-07-22 16:57:26 +0200 |
commit | 43f97f1de96a55deceb474d414a2185fdb07c5ab (patch) | |
tree | 0fc9cd11c7eb94abc5e5d025e51b48ea340a62ac /cpukit/posix/src/ualarm.c | |
parent | posix: Protect alarm() (diff) | |
download | rtems-43f97f1de96a55deceb474d414a2185fdb07c5ab.tar.bz2 |
posix: Statically init _POSIX_signals_Ualarm_timer
Diffstat (limited to 'cpukit/posix/src/ualarm.c')
-rw-r--r-- | cpukit/posix/src/ualarm.c | 49 |
1 files changed, 24 insertions, 25 deletions
diff --git a/cpukit/posix/src/ualarm.c b/cpukit/posix/src/ualarm.c index 74bfe8f557..c893800d09 100644 --- a/cpukit/posix/src/ualarm.c +++ b/cpukit/posix/src/ualarm.c @@ -27,6 +27,14 @@ #include <rtems/posix/psignalimpl.h> #include <rtems/posix/time.h> +static void _POSIX_signals_Ualarm_TSR( Objects_Id id, void *argument ); + +static Watchdog_Control _POSIX_signals_Ualarm_timer = WATCHDOG_INITIALIZER( + _POSIX_signals_Ualarm_TSR, + 0, + NULL +); + /* * _POSIX_signals_Ualarm_TSR */ @@ -56,35 +64,26 @@ useconds_t ualarm( useconds_t remaining = 0; Watchdog_Control *the_timer; Watchdog_Interval ticks; + Watchdog_States state; struct timespec tp; the_timer = &_POSIX_signals_Ualarm_timer; - /* - * Initialize the timer used to implement alarm(). - */ - - if ( !the_timer->routine ) { - _Watchdog_Initialize( the_timer, _POSIX_signals_Ualarm_TSR, 0, NULL ); - } else { - Watchdog_States state; - - state = _Watchdog_Remove( the_timer ); - if ( (state == WATCHDOG_ACTIVE) || (state == WATCHDOG_REMOVE_IT) ) { - /* - * The stop_time and start_time fields are snapshots of ticks since - * boot. Since alarm() is dealing in seconds, we must account for - * this. - */ - - ticks = the_timer->initial; - ticks -= (the_timer->stop_time - the_timer->start_time); - /* remaining is now in ticks */ - - _Timespec_From_ticks( ticks, &tp ); - remaining = tp.tv_sec * TOD_MICROSECONDS_PER_SECOND; - remaining += tp.tv_nsec / 1000; - } + state = _Watchdog_Remove( the_timer ); + if ( (state == WATCHDOG_ACTIVE) || (state == WATCHDOG_REMOVE_IT) ) { + /* + * The stop_time and start_time fields are snapshots of ticks since + * boot. Since alarm() is dealing in seconds, we must account for + * this. + */ + + ticks = the_timer->initial; + ticks -= (the_timer->stop_time - the_timer->start_time); + /* remaining is now in ticks */ + + _Timespec_From_ticks( ticks, &tp ); + remaining = tp.tv_sec * TOD_MICROSECONDS_PER_SECOND; + remaining += tp.tv_nsec / 1000; } /* |