/*
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/*
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* RTEMS Task Manager
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* RTEMS Task Manager
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*
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*
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*
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*
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* COPYRIGHT (c) 1989-1999.
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* COPYRIGHT (c) 1989-1999.
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* On-Line Applications Research Corporation (OAR).
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* On-Line Applications Research Corporation (OAR).
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*
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*
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* The license and distribution terms for this file may be
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* found in the file LICENSE in this distribution or at
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* http://www.OARcorp.com/rtems/license.html.
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* http://www.OARcorp.com/rtems/license.html.
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*
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*
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* tasksuspend.c,v 1.3 1999/11/17 17:50:28 joel Exp
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* tasksuspend.c,v 1.3 1999/11/17 17:50:28 joel Exp
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*/
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*/
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#include <rtems/system.h>
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#include <rtems/system.h>
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#include <rtems/rtems/status.h>
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#include <rtems/rtems/status.h>
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#include <rtems/rtems/support.h>
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#include <rtems/rtems/support.h>
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#include <rtems/rtems/modes.h>
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#include <rtems/rtems/modes.h>
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#include <rtems/score/object.h>
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#include <rtems/score/object.h>
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#include <rtems/score/stack.h>
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#include <rtems/score/stack.h>
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#include <rtems/score/states.h>
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#include <rtems/score/states.h>
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#include <rtems/rtems/tasks.h>
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#include <rtems/rtems/tasks.h>
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#include <rtems/score/thread.h>
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#include <rtems/score/thread.h>
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#include <rtems/score/threadq.h>
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#include <rtems/score/threadq.h>
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#include <rtems/score/tod.h>
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#include <rtems/score/tod.h>
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#include <rtems/score/userext.h>
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#include <rtems/score/userext.h>
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#include <rtems/score/wkspace.h>
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#include <rtems/score/wkspace.h>
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#include <rtems/score/apiext.h>
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#include <rtems/score/apiext.h>
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#include <rtems/score/sysstate.h>
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#include <rtems/score/sysstate.h>
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/*PAGE
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/*PAGE
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*
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*
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* rtems_task_suspend
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* rtems_task_suspend
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*
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*
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* This directive will place the specified thread in the "suspended"
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* This directive will place the specified thread in the "suspended"
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* state. Note that the suspended state can be in addition to
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* state. Note that the suspended state can be in addition to
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* other waiting states.
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* other waiting states.
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*
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*
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* Input parameters:
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* Input parameters:
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* id - thread id
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* id - thread id
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*
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*
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* Output parameters:
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* Output parameters:
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* RTEMS_SUCCESSFUL - if successful
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* RTEMS_SUCCESSFUL - if successful
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* error code - if unsuccessful
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* error code - if unsuccessful
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*/
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*/
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rtems_status_code rtems_task_suspend(
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rtems_status_code rtems_task_suspend(
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Objects_Id id
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Objects_Id id
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)
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)
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{
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{
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register Thread_Control *the_thread;
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register Thread_Control *the_thread;
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Objects_Locations location;
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Objects_Locations location;
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the_thread = _Thread_Get( id, &location );
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the_thread = _Thread_Get( id, &location );
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switch ( location ) {
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switch ( location ) {
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case OBJECTS_REMOTE:
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case OBJECTS_REMOTE:
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#if defined(RTEMS_MULTIPROCESSING)
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#if defined(RTEMS_MULTIPROCESSING)
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return _RTEMS_tasks_MP_Send_request_packet(
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return _RTEMS_tasks_MP_Send_request_packet(
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RTEMS_TASKS_MP_SUSPEND_REQUEST,
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RTEMS_TASKS_MP_SUSPEND_REQUEST,
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id,
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id,
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0, /* Not used */
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0, /* Not used */
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0, /* Not used */
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0, /* Not used */
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0 /* Not used */
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0 /* Not used */
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);
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);
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#endif
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#endif
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case OBJECTS_ERROR:
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case OBJECTS_ERROR:
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return RTEMS_INVALID_ID;
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return RTEMS_INVALID_ID;
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case OBJECTS_LOCAL:
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case OBJECTS_LOCAL:
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if ( !_States_Is_suspended( the_thread->current_state ) ) {
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if ( !_States_Is_suspended( the_thread->current_state ) ) {
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_Thread_Suspend( the_thread );
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_Thread_Suspend( the_thread );
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_Thread_Enable_dispatch();
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_Thread_Enable_dispatch();
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return RTEMS_SUCCESSFUL;
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return RTEMS_SUCCESSFUL;
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}
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}
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_Thread_Enable_dispatch();
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_Thread_Enable_dispatch();
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return RTEMS_ALREADY_SUSPENDED;
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return RTEMS_ALREADY_SUSPENDED;
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}
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}
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return RTEMS_INTERNAL_ERROR; /* unreached - only to remove warnings */
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return RTEMS_INTERNAL_ERROR; /* unreached - only to remove warnings */
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}
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}
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