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authorJoel Sherrill <joel.sherrill@OARcorp.com>2002-01-16 22:54:23 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2002-01-16 22:54:23 +0000
commit36a63d785977ae733489fca7d77f4fb213336529 (patch)
tree54822473ad91c9f1e0d5a4213b83a2b35af86260 /c/src/exec/rtems/src/timerserverfireafter.c
parent64b1f8105264bdc4a38a618ff9c24050f7b537bf (diff)
downloadrtems-36a63d785977ae733489fca7d77f4fb213336529.tar.bz2
2001-01-16 Joel Sherrill <joel@OARcorp.com>
* Added task-based timers to the Timer Manager. This added three new directives: - rtems_timer_initiate_server - rtems_timer_server_fire_after - rtems_timer_server_fire_when In the process of doing this, a number of cleanups were made. * src/timerserver.c, src/timerserverfireafter.c, src/timerserverfirewhen.c: New files. * include/timer/timer.h: Added new prototypes and supporting types. * inline/rtems/rtems/timer.h, macros/rtems/rtems/timer.h: Enhanced _Timer_Is_interval_class() to cover the class TIMER_INTERVAL_ON_TASK. * src/Makefile.am: Accounted for new files. * src/rtemstimer.c: Added initialization of _Timer_Server variable. * src/timercancel.c, src/timerreset.c: Account for addition of timer classes. Also corrected the headers. * src/timercreate.c, src/timerdelete.c, src/timerfireafter.c, src/timerfireafter.c, src/timerident.c: Corrected header.
Diffstat (limited to 'c/src/exec/rtems/src/timerserverfireafter.c')
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diff --git a/c/src/exec/rtems/src/timerserverfireafter.c b/c/src/exec/rtems/src/timerserverfireafter.c
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+/*
+ * Timer Manager - rtems_timer_server fire_after directive
+ *
+ *
+ * COPYRIGHT (c) 1989-2002.
+ * 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.OARcorp.com/rtems/license.html.
+ *
+ * $Id$
+ */
+
+#include <rtems/system.h>
+#include <rtems/rtems/status.h>
+#include <rtems/rtems/support.h>
+#include <rtems/score/object.h>
+#include <rtems/score/thread.h>
+#include <rtems/rtems/timer.h>
+#include <rtems/score/tod.h>
+#include <rtems/score/watchdog.h>
+
+/*PAGE
+ *
+ * rtems_timer_server_fire_after
+ *
+ * This directive allows a thread to start a timer which will by
+ * executed by the Timer Server when it fires.
+ *
+ * Input parameters:
+ * id - timer id
+ * ticks - interval until routine is fired
+ * routine - routine to schedule
+ * user_data - passed as argument to routine when it is fired
+ *
+ * Output parameters:
+ * RTEMS_SUCCESSFUL - if successful
+ * error code - if unsuccessful
+ */
+
+rtems_status_code rtems_timer_server_fire_after(
+ Objects_Id id,
+ rtems_interval ticks,
+ rtems_timer_service_routine_entry routine,
+ void *user_data
+)
+{
+ Timer_Control *the_timer;
+ Objects_Locations location;
+ extern Chain_Control _Timer_Ticks_chain;
+
+ if ( !_Timer_Server )
+ return RTEMS_INCORRECT_STATE;
+
+ if ( ticks == 0 )
+ return RTEMS_INVALID_NUMBER;
+
+ the_timer = _Timer_Get( id, &location );
+ switch ( location ) {
+ case OBJECTS_REMOTE: /* should never return this */
+ return RTEMS_INTERNAL_ERROR;
+
+ case OBJECTS_ERROR:
+ return RTEMS_INVALID_ID;
+
+ case OBJECTS_LOCAL:
+ (void) _Watchdog_Remove( &the_timer->Ticker );
+ the_timer->the_class = TIMER_INTERVAL_ON_TASK;
+ _Watchdog_Initialize( &the_timer->Ticker, routine, id, user_data );
+ the_timer->Ticker.initial = ticks;
+ _Watchdog_Insert( &_Timer_Ticks_chain, &the_timer->Ticker );
+ _Timer_Server_reset( TIMER_SERVER_RESET_TICKS );
+ _Thread_Enable_dispatch();
+ return RTEMS_SUCCESSFUL;
+ }
+
+ return RTEMS_INTERNAL_ERROR; /* unreached - only to remove warnings */
+}