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author | Joel Sherrill <joel.sherrill@OARcorp.com> | 1999-05-17 23:03:07 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 1999-05-17 23:03:07 +0000 |
commit | 5f9b3db545887fd328d006e33f1dca295584bc6f (patch) | |
tree | 59757f3f5ba22cca792f054ca09f9fbfdd697cc6 /c/src/exec/rtems/src/ratemontimeout.c | |
parent | Split the Semaphore Manager into one routine per file. (diff) | |
download | rtems-5f9b3db545887fd328d006e33f1dca295584bc6f.tar.bz2 |
Split Rate Monotonic Manager into one routine per file.
Diffstat (limited to '')
-rw-r--r-- | c/src/exec/rtems/src/ratemontimeout.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/c/src/exec/rtems/src/ratemontimeout.c b/c/src/exec/rtems/src/ratemontimeout.c new file mode 100644 index 0000000000..6c8a1976f4 --- /dev/null +++ b/c/src/exec/rtems/src/ratemontimeout.c @@ -0,0 +1,77 @@ +/* + * Rate Monotonic Manager + * + * + * COPYRIGHT (c) 1989-1998. + * On-Line Applications Research Corporation (OAR). + * Copyright assigned to U.S. Government, 1994. + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.OARcorp.com/rtems/license.html. + * + * $Id$ + */ + +#include <rtems/system.h> +#include <rtems/rtems/status.h> +#include <rtems/rtems/support.h> +#include <rtems/score/isr.h> +#include <rtems/score/object.h> +#include <rtems/rtems/ratemon.h> +#include <rtems/score/thread.h> + +/*PAGE + * + * _Rate_monotonic_Timeout + * + * This routine processes a period ending. If the owning thread + * is waiting for the period, that thread is unblocked and the + * period reinitiated. Otherwise, the period is expired. + * This routine is called by the watchdog handler. + * + * Input parameters: + * id - period id + * + * Output parameters: NONE + */ + +void _Rate_monotonic_Timeout( + Objects_Id id, + void *ignored +) +{ + Rate_monotonic_Control *the_period; + Objects_Locations location; + Thread_Control *the_thread; + + the_period = _Rate_monotonic_Get( id, &location ); + switch ( location ) { + case OBJECTS_REMOTE: /* impossible */ + case OBJECTS_ERROR: + break; + + case OBJECTS_LOCAL: + the_thread = the_period->owner; + if ( _States_Is_waiting_for_period( the_thread->current_state ) && + the_thread->Wait.id == the_period->Object.id ) { + _Thread_Unblock( the_thread ); + the_period->owner_ticks_executed_at_period = + the_thread->ticks_executed; + + the_period->time_at_period = _Watchdog_Ticks_since_boot; + + _Watchdog_Reset( &the_period->Timer ); + } else if ( the_period->state == RATE_MONOTONIC_OWNER_IS_BLOCKING ) { + the_period->state = RATE_MONOTONIC_EXPIRED_WHILE_BLOCKING; + the_period->owner_ticks_executed_at_period = + the_thread->ticks_executed; + + the_period->time_at_period = _Watchdog_Ticks_since_boot; + _Watchdog_Reset( &the_period->Timer ); + } else + the_period->state = RATE_MONOTONIC_EXPIRED; + _Thread_Unnest_dispatch(); + break; + } +} |