168 lines
7.2 KiB
C
168 lines
7.2 KiB
C
/**************************************************************************/
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/* */
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/* Copyright (c) Microsoft Corporation. All rights reserved. */
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/* */
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/* This software is licensed under the Microsoft Software License */
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/* Terms for Microsoft Azure RTOS. Full text of the license can be */
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/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
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/* and in the root directory of this software. */
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/* */
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/**************************************************************************/
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/**************************************************************************/
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/**************************************************************************/
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/** */
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/** ThreadX Component */
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/** */
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/** Thread */
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/** */
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/**************************************************************************/
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/**************************************************************************/
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#define TX_SOURCE_CODE
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/* Include necessary system files. */
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#include "tx_api.h"
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#include "tx_thread.h"
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#include "tx_timer.h"
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/**************************************************************************/
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/* */
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/* FUNCTION RELEASE */
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/* */
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/* _tx_thread_timeout PORTABLE C */
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/* 6.1 */
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/* AUTHOR */
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/* */
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/* William E. Lamie, Microsoft Corporation */
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/* */
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/* DESCRIPTION */
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/* */
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/* This function handles thread timeout processing. Timeouts occur in */
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/* two flavors, namely the thread sleep timeout and all other service */
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/* call timeouts. Thread sleep timeouts are processed locally, while */
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/* the others are processed by the appropriate suspension clean-up */
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/* service. */
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/* */
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/* INPUT */
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/* */
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/* timeout_input Contains the thread pointer */
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/* */
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/* OUTPUT */
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/* */
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/* None */
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/* */
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/* CALLS */
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/* */
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/* Suspension Cleanup Functions */
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/* _tx_thread_system_resume Resume thread */
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/* _tx_thread_system_ni_resume Non-interruptable resume thread */
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/* */
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/* CALLED BY */
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/* */
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/* _tx_timer_expiration_process Timer expiration function */
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/* _tx_timer_thread_entry Timer thread function */
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/* */
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/* RELEASE HISTORY */
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/* */
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/* DATE NAME DESCRIPTION */
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/* */
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/* 05-19-2020 William E. Lamie Initial Version 6.0 */
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/* 09-30-2020 Yuxin Zhou Modified comment(s), */
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/* resulting in version 6.1 */
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/* */
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/**************************************************************************/
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VOID _tx_thread_timeout(ULONG timeout_input)
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{
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TX_INTERRUPT_SAVE_AREA
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TX_THREAD *thread_ptr;
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VOID (*suspend_cleanup)(struct TX_THREAD_STRUCT *suspend_thread_ptr, ULONG suspension_sequence);
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ULONG suspension_sequence;
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/* Pickup the thread pointer. */
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TX_THREAD_TIMEOUT_POINTER_SETUP(thread_ptr)
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/* Disable interrupts. */
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TX_DISABLE
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/* Determine how the thread is currently suspended. */
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if (thread_ptr -> tx_thread_state == TX_SLEEP)
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{
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#ifdef TX_NOT_INTERRUPTABLE
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/* Resume the thread! */
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_tx_thread_system_ni_resume(thread_ptr);
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/* Restore interrupts. */
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TX_RESTORE
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#else
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/* Increment the disable preemption flag. */
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_tx_thread_preempt_disable++;
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/* Restore interrupts. */
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TX_RESTORE
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/* Lift the suspension on the sleeping thread. */
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_tx_thread_system_resume(thread_ptr);
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#endif
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}
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else
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{
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/* Process all other suspension timeouts. */
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#ifdef TX_THREAD_ENABLE_PERFORMANCE_INFO
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/* Increment the total number of thread timeouts. */
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_tx_thread_performance_timeout_count++;
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/* Increment the number of timeouts for this thread. */
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thread_ptr -> tx_thread_performance_timeout_count++;
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#endif
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/* Pickup the cleanup routine address. */
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suspend_cleanup = thread_ptr -> tx_thread_suspend_cleanup;
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#ifndef TX_NOT_INTERRUPTABLE
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/* Pickup the suspension sequence number that is used later to verify that the
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cleanup is still necessary. */
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suspension_sequence = thread_ptr -> tx_thread_suspension_sequence;
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#else
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/* When not interruptable is selected, the suspension sequence is not used - just set to 0. */
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suspension_sequence = ((ULONG) 0);
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#endif
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#ifndef TX_NOT_INTERRUPTABLE
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/* Restore interrupts. */
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TX_RESTORE
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#endif
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/* Call any cleanup routines. */
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if (suspend_cleanup != TX_NULL)
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{
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/* Yes, there is a function to call. */
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(suspend_cleanup)(thread_ptr, suspension_sequence);
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}
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#ifdef TX_NOT_INTERRUPTABLE
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/* Restore interrupts. */
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TX_RESTORE
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#endif
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}
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}
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