len0rd/FreeRTOS-Kernel
1
0
Fork 0
mirror of https://github.com/FreeRTOS/FreeRTOS-Kernel.git synced 2025-08-20 10:08:33 -04:00
Code Issues Projects Releases Packages Wiki Activity

CI-CD Updates (#768)

Browse source 
* Use new version of CI-CD Actions
* Use cSpell spell check, and use ubuntu-20.04 for formatting check
* Format and spell check all files in the portable directory
* Remove the https:// from #errors and #warnings as uncrustify attempts to change it to /*
* Use checkout@v3 instead of checkout@v2 on all jobs
---------
This commit is contained in:
Soren Ptak 2023-09-05 17:24:04 -04:00 • committed by GitHub
parent d6bccb1f4c
commit 5fb9b50da8
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
485 changed files with 108790 additions and 107581 deletions
Download patch file Download diff file Expand all files Collapse all files

347
portable/MSVC-MingW/port.c
View file

@ -39,14 +39,14 @@
#pragma comment(lib, "winmm.lib")
#endif
#define portMAX_INTERRUPTS ( ( uint32_t ) sizeof( uint32_t ) * 8UL ) /* The number of bits in an uint32_t. */
#define portNO_CRITICAL_NESTING ( ( uint32_t ) 0 )
#define portMAX_INTERRUPTS ( ( uint32_t ) sizeof( uint32_t ) * 8UL ) /* The number of bits in an uint32_t. */
#define portNO_CRITICAL_NESTING ( ( uint32_t ) 0 )
/* The priorities at which the various components of the simulation execute. */
#define portDELETE_SELF_THREAD_PRIORITY THREAD_PRIORITY_TIME_CRITICAL /* Must be highest. */
#define portSIMULATED_INTERRUPTS_THREAD_PRIORITY THREAD_PRIORITY_TIME_CRITICAL
#define portSIMULATED_TIMER_THREAD_PRIORITY THREAD_PRIORITY_HIGHEST
#define portTASK_THREAD_PRIORITY THREAD_PRIORITY_ABOVE_NORMAL
#define portDELETE_SELF_THREAD_PRIORITY THREAD_PRIORITY_TIME_CRITICAL /* Must be highest. */
#define portSIMULATED_INTERRUPTS_THREAD_PRIORITY THREAD_PRIORITY_TIME_CRITICAL
#define portSIMULATED_TIMER_THREAD_PRIORITY THREAD_PRIORITY_HIGHEST
#define portTASK_THREAD_PRIORITY THREAD_PRIORITY_ABOVE_NORMAL
/*
* Created as a high priority thread, this function uses a timer to simulate
@ -87,47 +87,47 @@ static BOOL WINAPI prvEndProcess( DWORD dwCtrlType );
/*-----------------------------------------------------------*/
/* The WIN32 simulator runs each task in a thread. The context switching is
managed by the threads, so the task stack does not have to be managed directly,
although the task stack is still used to hold an xThreadState structure this is
the only thing it will ever hold. The structure indirectly maps the task handle
to a thread handle. */
* managed by the threads, so the task stack does not have to be managed directly,
* although the task stack is still used to hold an xThreadState structure this is
* the only thing it will ever hold. The structure indirectly maps the task handle
* to a thread handle. */
typedef struct
{
/* Handle of the thread that executes the task. */
void *pvThread;
void * pvThread;
/* Event used to make sure the thread does not execute past a yield point
between the call to SuspendThread() to suspend the thread and the
asynchronous SuspendThread() operation actually being performed. */
void *pvYieldEvent;
* between the call to SuspendThread() to suspend the thread and the
* asynchronous SuspendThread() operation actually being performed. */
void * pvYieldEvent;
} ThreadState_t;
/* Simulated interrupts waiting to be processed. This is a bit mask where each
bit represents one interrupt, so a maximum of 32 interrupts can be simulated. */
* bit represents one interrupt, so a maximum of 32 interrupts can be simulated. */
static volatile uint32_t ulPendingInterrupts = 0UL;
/* An event used to inform the simulated interrupt processing thread (a high
priority thread that simulated interrupt processing) that an interrupt is
pending. */
static void *pvInterruptEvent = NULL;
* priority thread that simulated interrupt processing) that an interrupt is
* pending. */
static void * pvInterruptEvent = NULL;
/* Mutex used to protect all the simulated interrupt variables that are accessed
by multiple threads. */
static void *pvInterruptEventMutex = NULL;
* by multiple threads. */
static void * pvInterruptEventMutex = NULL;
/* The critical nesting count for the currently executing task. This is
initialised to a non-zero value so interrupts do not become enabled during
the initialisation phase. As each task has its own critical nesting value
ulCriticalNesting will get set to zero when the first task runs. This
initialisation is probably not critical in this simulated environment as the
simulated interrupt handlers do not get created until the FreeRTOS scheduler is
started anyway. */
* initialised to a non-zero value so interrupts do not become enabled during
* the initialisation phase. As each task has its own critical nesting value
* ulCriticalNesting will get set to zero when the first task runs. This
* initialisation is probably not critical in this simulated environment as the
* simulated interrupt handlers do not get created until the FreeRTOS scheduler is
* started anyway. */
static volatile uint32_t ulCriticalNesting = 9999UL;
/* Handlers for all the simulated software interrupts. The first two positions
are used for the Yield and Tick interrupts so are handled slightly differently,
all the other interrupts can be user defined. */
static uint32_t (*ulIsrHandler[ portMAX_INTERRUPTS ])( void ) = { 0 };
* are used for the Yield and Tick interrupts so are handled slightly differently,
* all the other interrupts can be user defined. */
static uint32_t (* ulIsrHandler[ portMAX_INTERRUPTS ])( void ) = { 0 };
/* Pointer to the TCB of the currently executing task. */
extern void * volatile pxCurrentTCB;
@ -139,8 +139,8 @@ static BaseType_t xPortRunning = pdFALSE;
static DWORD WINAPI prvSimulatedPeripheralTimer( LPVOID lpParameter )
{
TickType_t xMinimumWindowsBlockTime;
TIMECAPS xTimeCaps;
TickType_t xMinimumWindowsBlockTime;
TIMECAPS xTimeCaps;
/* Set the timer resolution to the maximum possible. */
if( timeGetDevCaps( &xTimeCaps, sizeof( xTimeCaps ) ) == MMSYSERR_NOERROR )
@ -149,7 +149,7 @@ TIMECAPS xTimeCaps;
timeBeginPeriod( xTimeCaps.wPeriodMin );
/* Register an exit handler so the timeBeginPeriod() function can be
matched with a timeEndPeriod() when the application exits. */
* matched with a timeEndPeriod() when the application exits. */
SetConsoleCtrlHandler( prvEndProcess, TRUE );
}
else
@ -163,11 +163,11 @@ TIMECAPS xTimeCaps;
while( xPortRunning == pdTRUE )
{
/* Wait until the timer expires and we can access the simulated interrupt
variables. *NOTE* this is not a 'real time' way of generating tick
events as the next wake time should be relative to the previous wake
time, not the time that Sleep() is called. It is done this way to
prevent overruns in this very non real time simulated/emulated
environment. */
* variables. *NOTE* this is not a 'real time' way of generating tick
* events as the next wake time should be relative to the previous wake
* time, not the time that Sleep() is called. It is done this way to
* prevent overruns in this very non real time simulated/emulated
* environment. */
if( portTICK_PERIOD_MS < xMinimumWindowsBlockTime )
{
Sleep( xMinimumWindowsBlockTime );
@ -182,40 +182,39 @@ TIMECAPS xTimeCaps;
configASSERT( xPortRunning );
/* Can't proceed if in a critical section as pvInterruptEventMutex won't
be available. */
* be available. */
WaitForSingleObject( pvInterruptEventMutex, INFINITE );
/* The timer has expired, generate the simulated tick event. */
ulPendingInterrupts |= ( 1 << portINTERRUPT_TICK );
/* The interrupt is now pending - notify the simulated interrupt
handler thread. Must be outside of a critical section to get here so
the handler thread can execute immediately pvInterruptEventMutex is
released. */
* handler thread. Must be outside of a critical section to get here so
* the handler thread can execute immediately pvInterruptEventMutex is
* released. */
configASSERT( ulCriticalNesting == 0UL );
SetEvent( pvInterruptEvent );
/* Give back the mutex so the simulated interrupt handler unblocks
and can access the interrupt handler variables. */
* and can access the interrupt handler variables. */
ReleaseMutex( pvInterruptEventMutex );
}
}
return 0;
}
/*-----------------------------------------------------------*/
static BOOL WINAPI prvEndProcess( DWORD dwCtrlType )
{
TIMECAPS xTimeCaps;
TIMECAPS xTimeCaps;
( void ) dwCtrlType;
if( timeGetDevCaps( &xTimeCaps, sizeof( xTimeCaps ) ) == MMSYSERR_NOERROR )
{
/* Match the call to timeBeginPeriod( xTimeCaps.wPeriodMin ) made when
the process started with a timeEndPeriod() as the process exits. */
* the process started with a timeEndPeriod() as the process exits. */
timeEndPeriod( xTimeCaps.wPeriodMin );
}
@ -223,27 +222,29 @@ TIMECAPS xTimeCaps;
}
/*-----------------------------------------------------------*/
StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters )
StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack,
TaskFunction_t pxCode,
void * pvParameters )
{
ThreadState_t *pxThreadState = NULL;
int8_t *pcTopOfStack = ( int8_t * ) pxTopOfStack;
const SIZE_T xStackSize = 1024; /* Set the size to a small number which will get rounded up to the minimum possible. */
ThreadState_t * pxThreadState = NULL;
int8_t * pcTopOfStack = ( int8_t * ) pxTopOfStack;
const SIZE_T xStackSize = 1024; /* Set the size to a small number which will get rounded up to the minimum possible. */
/* In this simulated case a stack is not initialised, but instead a thread
is created that will execute the task being created. The thread handles
the context switching itself. The ThreadState_t object is placed onto
the stack that was created for the task - so the stack buffer is still
used, just not in the conventional way. It will not be used for anything
other than holding this structure. */
* is created that will execute the task being created. The thread handles
* the context switching itself. The ThreadState_t object is placed onto
* the stack that was created for the task - so the stack buffer is still
* used, just not in the conventional way. It will not be used for anything
* other than holding this structure. */
pxThreadState = ( ThreadState_t * ) ( pcTopOfStack - sizeof( ThreadState_t ) );
/* Create the event used to prevent the thread from executing past its yield
point if the SuspendThread() call that suspends the thread does not take
effect immediately (it is an asynchronous call). */
pxThreadState->pvYieldEvent = CreateEvent( NULL, /* Default security attributes. */
FALSE, /* Auto reset. */
FALSE, /* Start not signalled. */
NULL );/* No name. */
* point if the SuspendThread() call that suspends the thread does not take
* effect immediately (it is an asynchronous call). */
pxThreadState->pvYieldEvent = CreateEvent( NULL, /* Default security attributes. */
FALSE, /* Auto reset. */
FALSE, /* Start not signalled. */
NULL ); /* No name. */
/* Create the thread itself. */
pxThreadState->pvThread = CreateThread( NULL, xStackSize, ( LPTHREAD_START_ROUTINE ) pxCode, pvParameters, CREATE_SUSPENDED | STACK_SIZE_PARAM_IS_A_RESERVATION, NULL );
@ -258,15 +259,16 @@ const SIZE_T xStackSize = 1024; /* Set the size to a small number which will get
BaseType_t xPortStartScheduler( void )
{
void *pvHandle = NULL;
int32_t lSuccess;
ThreadState_t *pxThreadState = NULL;
SYSTEM_INFO xSystemInfo;
void * pvHandle = NULL;
int32_t lSuccess;
ThreadState_t * pxThreadState = NULL;
SYSTEM_INFO xSystemInfo;
/* This port runs windows threads with extremely high priority. All the
threads execute on the same core - to prevent locking up the host only start
if the host has multiple cores. */
* threads execute on the same core - to prevent locking up the host only start
* if the host has multiple cores. */
GetSystemInfo( &xSystemInfo );
if( xSystemInfo.dwNumberOfProcessors <= 1 )
{
printf( "This version of the FreeRTOS Windows port can only be used on multi-core hosts.\r\n" );
@ -277,7 +279,7 @@ SYSTEM_INFO xSystemInfo;
lSuccess = pdPASS;
/* The highest priority class is used to [try to] prevent other Windows
activity interfering with FreeRTOS timing too much. */
* activity interfering with FreeRTOS timing too much. */
if( SetPriorityClass( GetCurrentProcess(), REALTIME_PRIORITY_CLASS ) == 0 )
{
printf( "SetPriorityClass() failed\r\n" );
@ -288,7 +290,7 @@ SYSTEM_INFO xSystemInfo;
vPortSetInterruptHandler( portINTERRUPT_TICK, prvProcessTickInterrupt );
/* Create the events and mutexes that are used to synchronise all the
threads. */
* threads. */
pvInterruptEventMutex = CreateMutex( NULL, FALSE, NULL );
pvInterruptEvent = CreateEvent( NULL, FALSE, FALSE, NULL );
@ -298,9 +300,10 @@ SYSTEM_INFO xSystemInfo;
}
/* Set the priority of this thread such that it is above the priority of
the threads that run tasks. This higher priority is required to ensure
simulated interrupts take priority over tasks. */
* the threads that run tasks. This higher priority is required to ensure
* simulated interrupts take priority over tasks. */
pvHandle = GetCurrentThread();
if( pvHandle == NULL )
{
lSuccess = pdFAIL;
@ -313,6 +316,7 @@ SYSTEM_INFO xSystemInfo;
{
lSuccess = pdFAIL;
}
SetThreadPriorityBoost( pvHandle, TRUE );
SetThreadAffinityMask( pvHandle, 0x01 );
}
@ -320,10 +324,11 @@ SYSTEM_INFO xSystemInfo;
if( lSuccess == pdPASS )
{
/* Start the thread that simulates the timer peripheral to generate
tick interrupts. The priority is set below that of the simulated
interrupt handler so the interrupt event mutex is used for the
handshake / overrun protection. */
* tick interrupts. The priority is set below that of the simulated
* interrupt handler so the interrupt event mutex is used for the
* handshake / overrun protection. */
pvHandle = CreateThread( NULL, 0, prvSimulatedPeripheralTimer, NULL, CREATE_SUSPENDED, NULL );
if( pvHandle != NULL )
{
SetThreadPriority( pvHandle, portSIMULATED_TIMER_THREAD_PRIORITY );
@ -333,7 +338,7 @@ SYSTEM_INFO xSystemInfo;
}
/* Start the highest priority task by obtaining its associated thread
state structure, in which is stored the thread handle. */
* state structure, in which is stored the thread handle. */
pxThreadState = ( ThreadState_t * ) *( ( size_t * ) pxCurrentTCB );
ulCriticalNesting = portNO_CRITICAL_NESTING;
@ -344,12 +349,12 @@ SYSTEM_INFO xSystemInfo;
xPortRunning = pdTRUE;
/* Handle all simulated interrupts - including yield requests and
simulated ticks. */
* simulated ticks. */
prvProcessSimulatedInterrupts();
}
/* Would not expect to return from prvProcessSimulatedInterrupts(), so should
not get here. */
* not get here. */
return 0;
}
/*-----------------------------------------------------------*/
@ -363,7 +368,7 @@ static uint32_t prvProcessYieldInterrupt( void )
static uint32_t prvProcessTickInterrupt( void )
{
uint32_t ulSwitchRequired;
uint32_t ulSwitchRequired;
/* Process the tick itself. */
configASSERT( xPortRunning );
@ -375,21 +380,21 @@ uint32_t ulSwitchRequired;
static void prvProcessSimulatedInterrupts( void )
{
uint32_t ulSwitchRequired, i;
ThreadState_t *pxThreadState;
void *pvObjectList[ 2 ];
CONTEXT xContext;
DWORD xWinApiResult;
const DWORD xTimeoutMilliseconds = 1000;
uint32_t ulSwitchRequired, i;
ThreadState_t * pxThreadState;
void * pvObjectList[ 2 ];
CONTEXT xContext;
DWORD xWinApiResult;
const DWORD xTimeoutMilliseconds = 1000;
/* Going to block on the mutex that ensured exclusive access to the simulated
interrupt objects, and the event that signals that a simulated interrupt
should be processed. */
* interrupt objects, and the event that signals that a simulated interrupt
* should be processed. */
pvObjectList[ 0 ] = pvInterruptEventMutex;
pvObjectList[ 1 ] = pvInterruptEvent;
/* Create a pending tick to ensure the first task is started as soon as
this thread pends. */
* this thread pends. */
ulPendingInterrupts |= ( 1 << portINTERRUPT_TICK );
SetEvent( pvInterruptEvent );
@ -404,18 +409,18 @@ const DWORD xTimeoutMilliseconds = 1000;
if( xWinApiResult != WAIT_TIMEOUT )
{
/* Cannot be in a critical section to get here. Tasks that exit a
critical section will block on a yield mutex to wait for an interrupt to
process if an interrupt was set pending while the task was inside the
critical section. xInsideInterrupt prevents interrupts that contain
critical sections from doing the same. */
* critical section will block on a yield mutex to wait for an interrupt to
* process if an interrupt was set pending while the task was inside the
* critical section. xInsideInterrupt prevents interrupts that contain
* critical sections from doing the same. */
xInsideInterrupt = pdTRUE;
/* Used to indicate whether the simulated interrupt processing has
necessitated a context switch to another task/thread. */
* necessitated a context switch to another task/thread. */
ulSwitchRequired = pdFALSE;
/* For each interrupt we are interested in processing, each of which is
represented by a bit in the 32bit ulPendingInterrupts variable. */
* represented by a bit in the 32bit ulPendingInterrupts variable. */
for( i = 0; i < portMAX_INTERRUPTS; i++ )
{
/* Is the simulated interrupt pending? */
@ -425,7 +430,7 @@ const DWORD xTimeoutMilliseconds = 1000;
if( ulIsrHandler[ i ] != NULL )
{
/* Run the actual handler. Handlers return pdTRUE if they
necessitate a context switch. */
* necessitate a context switch. */
if( ulIsrHandler[ i ]() != pdFALSE )
{
/* A bit mask is used purely to help debugging. */
@ -440,7 +445,7 @@ const DWORD xTimeoutMilliseconds = 1000;
if( ulSwitchRequired != pdFALSE )
{
void *pvOldCurrentTCB;
void * pvOldCurrentTCB;
pvOldCurrentTCB = pxCurrentTCB;
@ -448,51 +453,51 @@ const DWORD xTimeoutMilliseconds = 1000;
vTaskSwitchContext();
/* If the task selected to enter the running state is not the task
that is already in the running state. */
* that is already in the running state. */
if( pvOldCurrentTCB != pxCurrentTCB )
{
/* Suspend the old thread. In the cases where the (simulated)
interrupt is asynchronous (tick event swapping a task out rather
than a task blocking or yielding) it doesn't matter if the
'suspend' operation doesn't take effect immediately - if it
doesn't it would just be like the interrupt occurring slightly
later. In cases where the yield was caused by a task blocking
or yielding then the task will block on a yield event after the
yield operation in case the 'suspend' operation doesn't take
effect immediately. */
pxThreadState = ( ThreadState_t *) *( ( size_t * ) pvOldCurrentTCB );
* interrupt is asynchronous (tick event swapping a task out rather
* than a task blocking or yielding) it doesn't matter if the
* 'suspend' operation doesn't take effect immediately - if it
* doesn't it would just be like the interrupt occurring slightly
* later. In cases where the yield was caused by a task blocking
* or yielding then the task will block on a yield event after the
* yield operation in case the 'suspend' operation doesn't take
* effect immediately. */
pxThreadState = ( ThreadState_t * ) *( ( size_t * ) pvOldCurrentTCB );
SuspendThread( pxThreadState->pvThread );
/* Ensure the thread is actually suspended by performing a
synchronous operation that can only complete when the thread is
actually suspended. The below code asks for dummy register
data. Experimentation shows that these two lines don't appear
to do anything now, but according to
https://devblogs.microsoft.com/oldnewthing/20150205-00/?p=44743
they do - so as they do not harm (slight run-time hit). */
* synchronous operation that can only complete when the thread is
* actually suspended. The below code asks for dummy register
* data. Experimentation shows that these two lines don't appear
* to do anything now, but according to
* https://devblogs.microsoft.com/oldnewthing/20150205-00/?p=44743
* they do - so as they do not harm (slight run-time hit). */
xContext.ContextFlags = CONTEXT_INTEGER;
( void ) GetThreadContext( pxThreadState->pvThread, &xContext );
/* Obtain the state of the task now selected to enter the
Running state. */
pxThreadState = ( ThreadState_t * ) ( *( size_t *) pxCurrentTCB );
* Running state. */
pxThreadState = ( ThreadState_t * ) ( *( size_t * ) pxCurrentTCB );
/* pxThreadState->pvThread can be NULL if the task deleted
itself - but a deleted task should never be resumed here. */
* itself - but a deleted task should never be resumed here. */
configASSERT( pxThreadState->pvThread != NULL );
ResumeThread( pxThreadState->pvThread );
}
}
/* If the thread that is about to be resumed stopped running
because it yielded then it will wait on an event when it resumed
(to ensure it does not continue running after the call to
SuspendThread() above as SuspendThread() is asynchronous).
Signal the event to ensure the thread can proceed now it is
valid for it to do so. Signaling the event is benign in the case that
the task was switched out asynchronously by an interrupt as the event
is reset before the task blocks on it. */
pxThreadState = ( ThreadState_t * ) ( *( size_t *) pxCurrentTCB );
* because it yielded then it will wait on an event when it resumed
* (to ensure it does not continue running after the call to
* SuspendThread() above as SuspendThread() is asynchronous).
* Signal the event to ensure the thread can proceed now it is
* valid for it to do so. Signaling the event is benign in the case that
* the task was switched out asynchronously by an interrupt as the event
* is reset before the task blocks on it. */
pxThreadState = ( ThreadState_t * ) ( *( size_t * ) pxCurrentTCB );
SetEvent( pxThreadState->pvYieldEvent );
ReleaseMutex( pvInterruptEventMutex );
}
@ -500,29 +505,29 @@ const DWORD xTimeoutMilliseconds = 1000;
}
/*-----------------------------------------------------------*/
void vPortDeleteThread( void *pvTaskToDelete )
void vPortDeleteThread( void * pvTaskToDelete )
{
ThreadState_t *pxThreadState;
uint32_t ulErrorCode;
ThreadState_t * pxThreadState;
uint32_t ulErrorCode;
/* Remove compiler warnings if configASSERT() is not defined. */
( void ) ulErrorCode;
/* Find the handle of the thread being deleted. */
pxThreadState = ( ThreadState_t * ) ( *( size_t *) pvTaskToDelete );
pxThreadState = ( ThreadState_t * ) ( *( size_t * ) pvTaskToDelete );
/* Check that the thread is still valid, it might have been closed by
vPortCloseRunningThread() - which will be the case if the task associated
with the thread originally deleted itself rather than being deleted by a
different task. */
* vPortCloseRunningThread() - which will be the case if the task associated
* with the thread originally deleted itself rather than being deleted by a
* different task. */
if( pxThreadState->pvThread != NULL )
{
WaitForSingleObject( pvInterruptEventMutex, INFINITE );
/* !!! This is not a nice way to terminate a thread, and will eventually
result in resources being depleted if tasks frequently delete other
tasks (rather than deleting themselves) as the task stacks will not be
freed. */
* result in resources being depleted if tasks frequently delete other
* tasks (rather than deleting themselves) as the task stacks will not be
* freed. */
ulErrorCode = TerminateThread( pxThreadState->pvThread, 0 );
configASSERT( ulErrorCode );
@ -534,31 +539,32 @@ uint32_t ulErrorCode;
}
/*-----------------------------------------------------------*/
void vPortCloseRunningThread( void *pvTaskToDelete, volatile BaseType_t *pxPendYield )
void vPortCloseRunningThread( void * pvTaskToDelete,
volatile BaseType_t * pxPendYield )
{
ThreadState_t *pxThreadState;
void *pvThread;
uint32_t ulErrorCode;
ThreadState_t * pxThreadState;
void * pvThread;
uint32_t ulErrorCode;
/* Remove compiler warnings if configASSERT() is not defined. */
( void ) ulErrorCode;
/* Find the handle of the thread being deleted. */
pxThreadState = ( ThreadState_t * ) ( *( size_t *) pvTaskToDelete );
pxThreadState = ( ThreadState_t * ) ( *( size_t * ) pvTaskToDelete );
pvThread = pxThreadState->pvThread;
/* Raise the Windows priority of the thread to ensure the FreeRTOS scheduler
does not run and swap it out before it is closed. If that were to happen
the thread would never run again and effectively be a thread handle and
memory leak. */
* does not run and swap it out before it is closed. If that were to happen
* the thread would never run again and effectively be a thread handle and
* memory leak. */
SetThreadPriority( pvThread, portDELETE_SELF_THREAD_PRIORITY );
/* This function will not return, therefore a yield is set as pending to
ensure a context switch occurs away from this thread on the next tick. */
* ensure a context switch occurs away from this thread on the next tick. */
*pxPendYield = pdTRUE;
/* Mark the thread associated with this task as invalid so
vPortDeleteThread() does not try to terminate it. */
* vPortDeleteThread() does not try to terminate it. */
pxThreadState->pvThread = NULL;
/* Close the thread. */
@ -566,7 +572,7 @@ uint32_t ulErrorCode;
configASSERT( ulErrorCode );
/* This is called from a critical section, which must be exited before the
thread stops. */
* thread stops. */
taskEXIT_CRITICAL();
CloseHandle( pxThreadState->pvYieldEvent );
ExitThread( 0 );
@ -581,7 +587,7 @@ void vPortEndScheduler( void )
void vPortGenerateSimulatedInterrupt( uint32_t ulInterruptNumber )
{
ThreadState_t *pxThreadState = ( ThreadState_t *) *( ( size_t * ) pxCurrentTCB );
ThreadState_t * pxThreadState = ( ThreadState_t * ) *( ( size_t * ) pxCurrentTCB );
configASSERT( xPortRunning );
@ -591,34 +597,36 @@ ThreadState_t *pxThreadState = ( ThreadState_t *) *( ( size_t * ) pxCurrentTCB )
ulPendingInterrupts |= ( 1 << ulInterruptNumber );
/* The simulated interrupt is now held pending, but don't actually
process it yet if this call is within a critical section. It is
possible for this to be in a critical section as calls to wait for
mutexes are accumulative. If in a critical section then the event
will get set when the critical section nesting count is wound back
down to zero. */
* process it yet if this call is within a critical section. It is
* possible for this to be in a critical section as calls to wait for
* mutexes are accumulative. If in a critical section then the event
* will get set when the critical section nesting count is wound back
* down to zero. */
if( ulCriticalNesting == portNO_CRITICAL_NESTING )
{
SetEvent( pvInterruptEvent );
/* Going to wait for an event - make sure the event is not already
signaled. */
* signaled. */
ResetEvent( pxThreadState->pvYieldEvent );
}
ReleaseMutex( pvInterruptEventMutex );
if( ulCriticalNesting == portNO_CRITICAL_NESTING )
{
/* An interrupt was pended so ensure to block to allow it to
execute. In most cases the (simulated) interrupt will have
executed before the next line is reached - so this is just to make
sure. */
* execute. In most cases the (simulated) interrupt will have
* executed before the next line is reached - so this is just to make
* sure. */
WaitForSingleObject( pxThreadState->pvYieldEvent, INFINITE );
}
}
}
/*-----------------------------------------------------------*/
void vPortSetInterruptHandler( uint32_t ulInterruptNumber, uint32_t (*pvHandler)( void ) )
void vPortSetInterruptHandler( uint32_t ulInterruptNumber,
uint32_t ( * pvHandler )( void ) )
{
if( ulInterruptNumber < portMAX_INTERRUPTS )
{
@ -641,7 +649,7 @@ void vPortEnterCritical( void )
if( xPortRunning == pdTRUE )
{
/* The interrupt event mutex is held for the entire critical section,
effectively disabling (simulated) interrupts. */
* effectively disabling (simulated) interrupts. */
WaitForSingleObject( pvInterruptEventMutex, INFINITE );
}
@ -651,10 +659,10 @@ void vPortEnterCritical( void )
void vPortExitCritical( void )
{
int32_t lMutexNeedsReleasing;
int32_t lMutexNeedsReleasing;
/* The interrupt event mutex should already be held by this thread as it was
obtained on entry to the critical section. */
* obtained on entry to the critical section. */
lMutexNeedsReleasing = pdTRUE;
if( ulCriticalNesting > portNO_CRITICAL_NESTING )
@ -662,33 +670,34 @@ int32_t lMutexNeedsReleasing;
ulCriticalNesting--;
/* Don't need to wait for any pending interrupts to execute if the
critical section was exited from inside an interrupt. */
* critical section was exited from inside an interrupt. */
if( ( ulCriticalNesting == portNO_CRITICAL_NESTING ) && ( xInsideInterrupt == pdFALSE ) )
{
/* Were any interrupts set to pending while interrupts were
(simulated) disabled? */
* (simulated) disabled? */
if( ulPendingInterrupts != 0UL )
{
ThreadState_t *pxThreadState = ( ThreadState_t *) *( ( size_t * ) pxCurrentTCB );
ThreadState_t * pxThreadState = ( ThreadState_t * ) *( ( size_t * ) pxCurrentTCB );
configASSERT( xPortRunning );
/* The interrupt won't actually executed until
pvInterruptEventMutex is released as it waits on both
pvInterruptEventMutex and pvInterruptEvent.
pvInterruptEvent is only set when the simulated
interrupt is pended if the interrupt is pended
from outside a critical section - hence it is set
here. */
* pvInterruptEventMutex is released as it waits on both
* pvInterruptEventMutex and pvInterruptEvent.
* pvInterruptEvent is only set when the simulated
* interrupt is pended if the interrupt is pended
* from outside a critical section - hence it is set
* here. */
SetEvent( pvInterruptEvent );
/* The calling task is going to wait for an event to ensure the
interrupt that is pending executes immediately after the
critical section is exited - so make sure the event is not
already signaled. */
* interrupt that is pending executes immediately after the
* critical section is exited - so make sure the event is not
* already signaled. */
ResetEvent( pxThreadState->pvYieldEvent );
/* Mutex will be released now so the (simulated) interrupt can
execute, so does not require releasing on function exit. */
* execute, so does not require releasing on function exit. */
lMutexNeedsReleasing = pdFALSE;
ReleaseMutex( pvInterruptEventMutex );
WaitForSingleObject( pxThreadState->pvYieldEvent, INFINITE );