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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [score/] [src/] [threadq.c] - Rev 227
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/* * Thread Queue Handler * * * COPYRIGHT (c) 1989-1999. * 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: threadq.c,v 1.2 2001-09-27 11:59:34 chris Exp $ */ #include <rtems/system.h> #include <rtems/score/chain.h> #include <rtems/score/isr.h> #include <rtems/score/object.h> #include <rtems/score/states.h> #include <rtems/score/thread.h> #include <rtems/score/threadq.h> #include <rtems/score/tqdata.h> /*PAGE * * _Thread_queue_Initialize * * This routine initializes the specified threadq. * * Input parameters: * the_thread_queue - pointer to a threadq header * the_class - class of the object to which this belongs * discipline - queueing discipline * state - state of waiting threads * proxy_extract_callout - MP specific callout * timeout_status - return on a timeout * * Output parameters: NONE */ void _Thread_queue_Initialize( Thread_queue_Control *the_thread_queue, Objects_Classes the_class, Thread_queue_Disciplines the_discipline, States_Control state, Thread_queue_Extract_callout proxy_extract_callout, unsigned32 timeout_status ) { unsigned32 index; _Thread_queue_Extract_table[ the_class ] = proxy_extract_callout; the_thread_queue->state = state; the_thread_queue->discipline = the_discipline; the_thread_queue->timeout_status = timeout_status; the_thread_queue->sync_state = THREAD_QUEUE_SYNCHRONIZED; switch ( the_discipline ) { case THREAD_QUEUE_DISCIPLINE_FIFO: _Chain_Initialize_empty( &the_thread_queue->Queues.Fifo ); break; case THREAD_QUEUE_DISCIPLINE_PRIORITY: for( index=0 ; index < TASK_QUEUE_DATA_NUMBER_OF_PRIORITY_HEADERS ; index++) _Chain_Initialize_empty( &the_thread_queue->Queues.Priority[index] ); break; } }
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