diff options
Diffstat (limited to 'cpukit/score/src/threadqprocesstimeout.c')
| -rw-r--r-- | cpukit/score/src/threadqprocesstimeout.c | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/cpukit/score/src/threadqprocesstimeout.c b/cpukit/score/src/threadqprocesstimeout.c deleted file mode 100644 index dbb8f5ce45..0000000000 --- a/cpukit/score/src/threadqprocesstimeout.c +++ /dev/null @@ -1,80 +0,0 @@ -/** - * @file - * - * @brief Thread Queue Handler Process Timeout Handler - * @ingroup ScoreThreadQ - */ - -/* - * COPYRIGHT (c) 1989-2008. - * 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.rtems.org/license/LICENSE. - */ - -#if HAVE_CONFIG_H -#include "config.h" -#endif - -#include <rtems/score/threadqimpl.h> -#include <rtems/score/threadimpl.h> - -void _Thread_queue_Process_timeout( - Thread_Control *the_thread -) -{ - Thread_queue_Control *the_thread_queue; - ISR_Level level; - - /* - * If the_thread_queue is not synchronized, then it is either - * "nothing happened", "timeout", or "satisfied". If the_thread - * is the executing thread, then it is in the process of blocking - * and it is the thread which is responsible for the synchronization - * process. - * - * If it is not satisfied, then it is "nothing happened" and - * this is the "timeout" transition. After a request is satisfied, - * a timeout is not allowed to occur. - */ - - _ISR_Disable( level ); - the_thread_queue = the_thread->Wait.queue; - if ( the_thread_queue != NULL ) { - if ( the_thread_queue->sync_state != THREAD_BLOCKING_OPERATION_SYNCHRONIZED && - _Thread_Is_executing( the_thread ) ) { - if ( the_thread_queue->sync_state != THREAD_BLOCKING_OPERATION_SATISFIED ) { - the_thread->Wait.return_code = the_thread_queue->timeout_status; - the_thread_queue->sync_state = THREAD_BLOCKING_OPERATION_TIMEOUT; - } - _ISR_Enable( level ); - } else { - _ISR_Enable( level ); - - /* - * After we enable interrupts here, a lot may happen in the meantime, - * e.g. nested interrupts may release the resource that times out here. - * So we enter _Thread_queue_Extract() speculatively. Inside this - * function we check the actual status under ISR disable protection. - * This ensures that exactly one executing context performs the extract - * operation (other parties may call _Thread_queue_Dequeue()). If this - * context won, then we have a timeout. - * - * We can use the_thread_queue pointer here even if - * the_thread->Wait.queue is already set to NULL since the extract - * operation will only use the thread queue discipline to select the - * right extract operation. The timeout status is set during thread - * queue initialization. - */ - _Thread_queue_Extract_with_return_code( - the_thread, - the_thread_queue->timeout_status - ); - } - } else { - _ISR_Enable( level ); - } -} - |