313 lines
12 KiB
C
313 lines
12 KiB
C
/**************************************************************************/
|
|
/* */
|
|
/* Copyright (c) Microsoft Corporation. All rights reserved. */
|
|
/* */
|
|
/* This software is licensed under the Microsoft Software License */
|
|
/* Terms for Microsoft Azure RTOS. Full text of the license can be */
|
|
/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
|
|
/* and in the root directory of this software. */
|
|
/* */
|
|
/**************************************************************************/
|
|
|
|
|
|
/**************************************************************************/
|
|
/**************************************************************************/
|
|
/** */
|
|
/** ThreadX Component */
|
|
/** */
|
|
/** Thread */
|
|
/** */
|
|
/**************************************************************************/
|
|
/**************************************************************************/
|
|
|
|
#define TX_SOURCE_CODE
|
|
|
|
|
|
/* Include necessary system files. */
|
|
|
|
#include "tx_api.h"
|
|
#include "tx_trace.h"
|
|
#include "tx_thread.h"
|
|
#include "tx_timer.h"
|
|
|
|
|
|
/**************************************************************************/
|
|
/* */
|
|
/* FUNCTION RELEASE */
|
|
/* */
|
|
/* _tx_thread_terminate PORTABLE C */
|
|
/* 6.1 */
|
|
/* AUTHOR */
|
|
/* */
|
|
/* William E. Lamie, Microsoft Corporation */
|
|
/* */
|
|
/* DESCRIPTION */
|
|
/* */
|
|
/* This function handles application thread terminate requests. Once */
|
|
/* a thread is terminated, it cannot be executed again unless it is */
|
|
/* deleted and recreated. */
|
|
/* */
|
|
/* INPUT */
|
|
/* */
|
|
/* thread_ptr Pointer to thread to suspend */
|
|
/* */
|
|
/* OUTPUT */
|
|
/* */
|
|
/* status Return completion status */
|
|
/* */
|
|
/* CALLS */
|
|
/* */
|
|
/* _tx_timer_system_deactivate Timer deactivate function */
|
|
/* _tx_thread_system_suspend Actual thread suspension */
|
|
/* _tx_thread_system_ni_suspend Non-interruptable suspend */
|
|
/* thread */
|
|
/* _tx_thread_system_preempt_check Check for preemption */
|
|
/* Suspend Cleanup Routine Suspension cleanup function */
|
|
/* */
|
|
/* CALLED BY */
|
|
/* */
|
|
/* Application code */
|
|
/* */
|
|
/* RELEASE HISTORY */
|
|
/* */
|
|
/* DATE NAME DESCRIPTION */
|
|
/* */
|
|
/* 05-19-2020 William E. Lamie Initial Version 6.0 */
|
|
/* 09-30-2020 Yuxin Zhou Modified comment(s), */
|
|
/* resulting in version 6.1 */
|
|
/* */
|
|
/**************************************************************************/
|
|
UINT _tx_thread_terminate(TX_THREAD *thread_ptr)
|
|
{
|
|
|
|
TX_INTERRUPT_SAVE_AREA
|
|
|
|
VOID (*suspend_cleanup)(struct TX_THREAD_STRUCT *suspend_thread_ptr, ULONG suspension_sequence);
|
|
#ifndef TX_DISABLE_NOTIFY_CALLBACKS
|
|
VOID (*entry_exit_notify)(TX_THREAD *notify_thread_ptr, UINT id);
|
|
#endif
|
|
UINT status;
|
|
ULONG suspension_sequence;
|
|
|
|
|
|
/* Default to successful completion. */
|
|
status = TX_SUCCESS;
|
|
|
|
/* Lockout interrupts while the thread is being terminated. */
|
|
TX_DISABLE
|
|
|
|
/* Deactivate thread timer, if active. */
|
|
_tx_timer_system_deactivate(&thread_ptr -> tx_thread_timer);
|
|
|
|
/* If trace is enabled, insert this event into the trace buffer. */
|
|
TX_TRACE_IN_LINE_INSERT(TX_TRACE_THREAD_TERMINATE, thread_ptr, thread_ptr -> tx_thread_state, TX_POINTER_TO_ULONG_CONVERT(&suspend_cleanup), 0, TX_TRACE_THREAD_EVENTS)
|
|
|
|
/* Log this kernel call. */
|
|
TX_EL_THREAD_TERMINATE_INSERT
|
|
|
|
/* Is the thread already terminated? */
|
|
if (thread_ptr -> tx_thread_state == TX_TERMINATED)
|
|
{
|
|
|
|
/* Restore interrupts. */
|
|
TX_RESTORE
|
|
|
|
/* Return success since thread is already terminated. */
|
|
status = TX_SUCCESS;
|
|
}
|
|
|
|
/* Check the specified thread's current status. */
|
|
else if (thread_ptr -> tx_thread_state != TX_COMPLETED)
|
|
{
|
|
|
|
/* Disable preemption. */
|
|
_tx_thread_preempt_disable++;
|
|
|
|
#ifndef TX_DISABLE_NOTIFY_CALLBACKS
|
|
|
|
/* Pickup the entry/exit application callback routine. */
|
|
entry_exit_notify = thread_ptr -> tx_thread_entry_exit_notify;
|
|
#endif
|
|
|
|
/* Check to see if the thread is currently ready. */
|
|
if (thread_ptr -> tx_thread_state == TX_READY)
|
|
{
|
|
|
|
/* Set the state to terminated. */
|
|
thread_ptr -> tx_thread_state = TX_TERMINATED;
|
|
|
|
/* Thread state change. */
|
|
TX_THREAD_STATE_CHANGE(thread_ptr, TX_TERMINATED)
|
|
|
|
#ifdef TX_NOT_INTERRUPTABLE
|
|
|
|
#ifndef TX_DISABLE_NOTIFY_CALLBACKS
|
|
|
|
/* Determine if an application callback routine is specified. */
|
|
if (entry_exit_notify != TX_NULL)
|
|
{
|
|
|
|
/* Yes, notify application that this thread has exited! */
|
|
(entry_exit_notify)(thread_ptr, TX_THREAD_EXIT);
|
|
}
|
|
#endif
|
|
|
|
/* Call actual non-interruptable thread suspension routine. */
|
|
_tx_thread_system_ni_suspend(thread_ptr, ((ULONG) 0));
|
|
#else
|
|
|
|
/* Set the suspending flag. */
|
|
thread_ptr -> tx_thread_suspending = TX_TRUE;
|
|
|
|
/* Setup for no timeout period. */
|
|
thread_ptr -> tx_thread_timer.tx_timer_internal_remaining_ticks = ((ULONG) 0);
|
|
|
|
/* Disable preemption. */
|
|
_tx_thread_preempt_disable++;
|
|
|
|
/* Since the thread is currently ready, we don't need to
|
|
worry about calling the suspend cleanup routine! */
|
|
|
|
/* Restore interrupts. */
|
|
TX_RESTORE
|
|
|
|
/* Perform any additional activities for tool or user purpose. */
|
|
TX_THREAD_TERMINATED_EXTENSION(thread_ptr)
|
|
|
|
#ifndef TX_DISABLE_NOTIFY_CALLBACKS
|
|
|
|
/* Determine if an application callback routine is specified. */
|
|
if (entry_exit_notify != TX_NULL)
|
|
{
|
|
|
|
/* Yes, notify application that this thread has exited! */
|
|
(entry_exit_notify)(thread_ptr, TX_THREAD_EXIT);
|
|
}
|
|
#endif
|
|
|
|
/* Call actual thread suspension routine. */
|
|
_tx_thread_system_suspend(thread_ptr);
|
|
|
|
/* Disable interrupts. */
|
|
TX_DISABLE
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
|
|
/* Change the state to terminated. */
|
|
thread_ptr -> tx_thread_state = TX_TERMINATED;
|
|
|
|
/* Thread state change. */
|
|
TX_THREAD_STATE_CHANGE(thread_ptr, TX_TERMINATED)
|
|
|
|
/* Set the suspending flag. This prevents the thread from being
|
|
resumed before the cleanup routine is executed. */
|
|
thread_ptr -> tx_thread_suspending = TX_TRUE;
|
|
|
|
/* Pickup the cleanup routine address. */
|
|
suspend_cleanup = thread_ptr -> tx_thread_suspend_cleanup;
|
|
|
|
#ifndef TX_NOT_INTERRUPTABLE
|
|
|
|
/* Pickup the suspension sequence number that is used later to verify that the
|
|
cleanup is still necessary. */
|
|
suspension_sequence = thread_ptr -> tx_thread_suspension_sequence;
|
|
#else
|
|
|
|
/* When not interruptable is selected, the suspension sequence is not used - just set to 0. */
|
|
suspension_sequence = ((ULONG) 0);
|
|
#endif
|
|
|
|
#ifndef TX_NOT_INTERRUPTABLE
|
|
|
|
/* Restore interrupts. */
|
|
TX_RESTORE
|
|
#endif
|
|
|
|
/* Call any cleanup routines. */
|
|
if (suspend_cleanup != TX_NULL)
|
|
{
|
|
|
|
/* Yes, there is a function to call. */
|
|
(suspend_cleanup)(thread_ptr, suspension_sequence);
|
|
}
|
|
|
|
#ifndef TX_NOT_INTERRUPTABLE
|
|
|
|
/* Disable interrupts. */
|
|
TX_DISABLE
|
|
#endif
|
|
|
|
/* Clear the suspending flag. */
|
|
thread_ptr -> tx_thread_suspending = TX_FALSE;
|
|
|
|
#ifndef TX_NOT_INTERRUPTABLE
|
|
|
|
/* Restore interrupts. */
|
|
TX_RESTORE
|
|
#endif
|
|
|
|
/* Perform any additional activities for tool or user purpose. */
|
|
TX_THREAD_TERMINATED_EXTENSION(thread_ptr)
|
|
|
|
#ifndef TX_DISABLE_NOTIFY_CALLBACKS
|
|
|
|
/* Determine if an application callback routine is specified. */
|
|
if (entry_exit_notify != TX_NULL)
|
|
{
|
|
|
|
/* Yes, notify application that this thread has exited! */
|
|
(entry_exit_notify)(thread_ptr, TX_THREAD_EXIT);
|
|
}
|
|
#endif
|
|
|
|
#ifndef TX_NOT_INTERRUPTABLE
|
|
|
|
/* Disable interrupts. */
|
|
TX_DISABLE
|
|
#endif
|
|
}
|
|
|
|
#ifndef TX_NOT_INTERRUPTABLE
|
|
|
|
/* Restore interrupts. */
|
|
TX_RESTORE
|
|
#endif
|
|
|
|
/* Determine if the application is using mutexes. */
|
|
if (_tx_thread_mutex_release != TX_NULL)
|
|
{
|
|
|
|
/* Yes, call the mutex release function via a function pointer that
|
|
is setup during initialization. */
|
|
(_tx_thread_mutex_release)(thread_ptr);
|
|
}
|
|
|
|
#ifndef TX_NOT_INTERRUPTABLE
|
|
|
|
/* Disable interrupts. */
|
|
TX_DISABLE
|
|
#endif
|
|
|
|
/* Enable preemption. */
|
|
_tx_thread_preempt_disable--;
|
|
|
|
/* Restore interrupts. */
|
|
TX_RESTORE
|
|
}
|
|
else
|
|
{
|
|
|
|
/* Restore interrupts. */
|
|
TX_RESTORE
|
|
}
|
|
|
|
/* Check for preemption. */
|
|
_tx_thread_system_preempt_check();
|
|
|
|
/* Return completion status. */
|
|
return(status);
|
|
}
|
|
|