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-rw-r--r--c/src/exec/score/src/threadqenqueuepriority.c221
1 files changed, 0 insertions, 221 deletions
diff --git a/c/src/exec/score/src/threadqenqueuepriority.c b/c/src/exec/score/src/threadqenqueuepriority.c
deleted file mode 100644
index a3a49cd7dc..0000000000
--- a/c/src/exec/score/src/threadqenqueuepriority.c
+++ /dev/null
@@ -1,221 +0,0 @@
-/*
- * 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.
- *
- * $Id$
- */
-
-#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_Enqueue_priority
- *
- * This routine blocks a thread, places it on a thread, and optionally
- * starts a timeout timer.
- *
- * Input parameters:
- * the_thread_queue - pointer to threadq
- * thread - thread to insert
- * timeout - timeout interval in ticks
- *
- * Output parameters: NONE
- *
- * INTERRUPT LATENCY:
- * forward less than
- * forward equal
- */
-
-void _Thread_queue_Enqueue_priority(
- Thread_queue_Control *the_thread_queue,
- Thread_Control *the_thread,
- Watchdog_Interval timeout
-)
-{
- Priority_Control search_priority;
- Thread_Control *search_thread;
- ISR_Level level;
- Chain_Control *header;
- unsigned32 header_index;
- Chain_Node *the_node;
- Chain_Node *next_node;
- Chain_Node *previous_node;
- Chain_Node *search_node;
- Priority_Control priority;
- States_Control block_state;
- Thread_queue_States sync_state;
-
- _Chain_Initialize_empty( &the_thread->Wait.Block2n );
-
- priority = the_thread->current_priority;
- header_index = _Thread_queue_Header_number( priority );
- header = &the_thread_queue->Queues.Priority[ header_index ];
- block_state = the_thread_queue->state;
-
- if ( _Thread_queue_Is_reverse_search( priority ) )
- goto restart_reverse_search;
-
-restart_forward_search:
- search_priority = PRIORITY_MINIMUM - 1;
- _ISR_Disable( level );
- search_thread = (Thread_Control *) header->first;
- while ( !_Chain_Is_tail( header, (Chain_Node *)search_thread ) ) {
- search_priority = search_thread->current_priority;
- if ( priority <= search_priority )
- break;
-
-#if ( CPU_UNROLL_ENQUEUE_PRIORITY == TRUE )
- search_thread = (Thread_Control *) search_thread->Object.Node.next;
- if ( _Chain_Is_tail( header, (Chain_Node *)search_thread ) )
- break;
- search_priority = search_thread->current_priority;
- if ( priority <= search_priority )
- break;
-#endif
- _ISR_Flash( level );
- if ( !_States_Are_set( search_thread->current_state, block_state) ) {
- _ISR_Enable( level );
- goto restart_forward_search;
- }
- search_thread =
- (Thread_Control *)search_thread->Object.Node.next;
- }
-
- if ( the_thread_queue->sync_state != THREAD_QUEUE_NOTHING_HAPPENED )
- goto synchronize;
-
- the_thread_queue->sync_state = THREAD_QUEUE_SYNCHRONIZED;
-
- if ( priority == search_priority )
- goto equal_priority;
-
- search_node = (Chain_Node *) search_thread;
- previous_node = search_node->previous;
- the_node = (Chain_Node *) the_thread;
-
- the_node->next = search_node;
- the_node->previous = previous_node;
- previous_node->next = the_node;
- search_node->previous = the_node;
- _ISR_Enable( level );
- return;
-
-restart_reverse_search:
- search_priority = PRIORITY_MAXIMUM + 1;
-
- _ISR_Disable( level );
- search_thread = (Thread_Control *) header->last;
- while ( !_Chain_Is_head( header, (Chain_Node *)search_thread ) ) {
- search_priority = search_thread->current_priority;
- if ( priority >= search_priority )
- break;
-#if ( CPU_UNROLL_ENQUEUE_PRIORITY == TRUE )
- search_thread = (Thread_Control *) search_thread->Object.Node.previous;
- if ( _Chain_Is_head( header, (Chain_Node *)search_thread ) )
- break;
- search_priority = search_thread->current_priority;
- if ( priority >= search_priority )
- break;
-#endif
- _ISR_Flash( level );
- if ( !_States_Are_set( search_thread->current_state, block_state) ) {
- _ISR_Enable( level );
- goto restart_reverse_search;
- }
- search_thread = (Thread_Control *)
- search_thread->Object.Node.previous;
- }
-
- if ( the_thread_queue->sync_state != THREAD_QUEUE_NOTHING_HAPPENED )
- goto synchronize;
-
- the_thread_queue->sync_state = THREAD_QUEUE_SYNCHRONIZED;
-
- if ( priority == search_priority )
- goto equal_priority;
-
- search_node = (Chain_Node *) search_thread;
- next_node = search_node->next;
- the_node = (Chain_Node *) the_thread;
-
- the_node->next = next_node;
- the_node->previous = search_node;
- search_node->next = the_node;
- next_node->previous = the_node;
- _ISR_Enable( level );
- return;
-
-equal_priority: /* add at end of priority group */
- search_node = _Chain_Tail( &search_thread->Wait.Block2n );
- previous_node = search_node->previous;
- the_node = (Chain_Node *) the_thread;
-
- the_node->next = search_node;
- the_node->previous = previous_node;
- previous_node->next = the_node;
- search_node->previous = the_node;
- _ISR_Enable( level );
- return;
-
-synchronize:
-
- sync_state = the_thread_queue->sync_state;
- the_thread_queue->sync_state = THREAD_QUEUE_SYNCHRONIZED;
-
- switch ( sync_state ) {
- case THREAD_QUEUE_SYNCHRONIZED:
- /*
- * This should never happen. It indicates that someone did not
- * enter a thread queue critical section.
- */
- break;
-
- case THREAD_QUEUE_NOTHING_HAPPENED:
- /*
- * This should never happen. All of this was dealt with above.
- */
- break;
-
- case THREAD_QUEUE_TIMEOUT:
- the_thread->Wait.return_code = the_thread->Wait.queue->timeout_status;
- _ISR_Enable( level );
- break;
-
- case THREAD_QUEUE_SATISFIED:
- if ( _Watchdog_Is_active( &the_thread->Timer ) ) {
- _Watchdog_Deactivate( &the_thread->Timer );
- _ISR_Enable( level );
- (void) _Watchdog_Remove( &the_thread->Timer );
- } else
- _ISR_Enable( level );
- break;
- }
-
- /*
- * Global objects with thread queue's should not be operated on from an
- * ISR. But the sync code still must allow short timeouts to be processed
- * correctly.
- */
-
- _Thread_Unblock( the_thread );
-
-#if defined(RTEMS_MULTIPROCESSING)
- if ( !_Objects_Is_local_id( the_thread->Object.id ) )
- _Thread_MP_Free_proxy( the_thread );
-#endif
-}
-
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