Example #1
0
static void mtx5_execute(void) {

#if !CH_CFG_USE_MUTEXES_RECURSIVE
  bool b;
  tprio_t prio = chThdGetPriorityX();

  b = chMtxTryLock(&m1);
  test_assert(1, b, "already locked");

  b = chMtxTryLock(&m1);
  test_assert(2, !b, "not locked");

  chSysLock();
  chMtxUnlockS(&m1);
  chSysUnlock();

  test_assert(3, queue_isempty(&m1.m_queue), "queue not empty");
  test_assert(4, m1.m_owner == NULL, "still owned");
  test_assert(5, chThdGetPriorityX() == prio, "wrong priority level");
#endif /* !CH_CFG_USE_MUTEXES_RECURSIVE */
  
  chMtxLock(&m1);
  chMtxUnlockAll();
  test_assert(6, queue_isempty(&m1.m_queue), "queue not empty");
  test_assert(7, m1.m_owner == NULL, "still owned");
}
Example #2
0
static void mtx5_execute(void) {
  bool_t b;
  tprio_t prio;

  prio = chThdGetPriority();

  b = chMtxTryLock(&m1);
  test_assert(1, b, "already locked");

  b = chMtxTryLock(&m1);
  test_assert(2, !b, "not locked");

  chSysLock();
  chMtxUnlockS();
  chSysUnlock();

  test_assert(3, isempty(&m1.m_queue), "queue not empty");
  test_assert(4, m1.m_owner == NULL, "still owned");
  test_assert(5, chThdGetPriority() == prio, "wrong priority level");
  
  chMtxLock(&m1);
  chMtxUnlockAll();
  test_assert(6, isempty(&m1.m_queue), "queue not empty");
  test_assert(7, m1.m_owner == NULL, "still owned");
}
Example #3
0
/************************************************************************
* NAME: fnet_os_mutex_unlock;
*
* DESCRIPTION:
*************************************************************************/
void fnet_os_mutex_unlock(void)
{
   chSysLock();
   if (--FnetMutexCount == 0) {
     // Last owned. Unlock.
     chMtxUnlockS();
   }
   chSysUnlock();
}
Example #4
0
static THD_FUNCTION(thread4B, p) {

  (void)p;
  chThdSleepMilliseconds(150);
  chSysLock();
  chMtxLockS(&m2);   /* For coverage of the chMtxLockS() function variant.*/
  chMtxUnlockS(&m2); /* For coverage of the chMtxUnlockS() function variant.*/
  chSchRescheduleS();
  chSysUnlock();
}
Example #5
0
/**
 * @brief   Releases exclusive access to the ILI9341 module.
 * @pre     In order to use this function the option
 *          @p ILI9341_USE_MUTUAL_EXCLUSION must be enabled.
 * @pre     ILI9341 is ready.
 *
 * @param[in] driverp   pointer to the @p ILI9341Driver object
 *
 * @sclass
 */
void ili9341ReleaseBusS(ILI9341Driver *driverp) {

  osalDbgCheckClassS();
  osalDbgCheck(driverp == &ILI9341D1);
  osalDbgAssert(driverp->state == ILI9341_READY, "not ready");

#if (TRUE == CH_CFG_USE_MUTEXES)
  chMtxUnlockS(&driverp->lock);
#else
  chSemSignalI(&driverp->lock);
#endif
}
Example #6
0
/**
 *
 * @brief   Unlocks a non recursive mutex.
 *
 * @param[in] mtx          pointer to instance of @p struct pios_mutex
 *
 * @returns true on success or false on timeout or failure
 *
 */
bool PIOS_Recursive_Mutex_Unlock(struct pios_recursive_mutex *mtx)
{
	PIOS_Assert(mtx != NULL);

	chSysLock();

	--mtx->count;

	if (mtx->count == 0)
		chMtxUnlockS();

	chSysUnlock();

	return true;
}
Example #7
0
static void mtx4_execute(void) {
  tprio_t p, p1, p2;

  p = chThdGetPriorityX();
  p1 = p + 1;
  p2 = p + 2;
  threads[0] = chThdCreateStatic(wa[0], WA_SIZE, p1, thread4a, "B");
  threads[1] = chThdCreateStatic(wa[1], WA_SIZE, p2, thread4b, "A");
  chMtxLock(&m2);
  test_assert(1, chThdGetPriorityX() == p, "wrong priority level");
  chThdSleepMilliseconds(100);
  test_assert(2, chThdGetPriorityX() == p1, "wrong priority level");
  chMtxLock(&m1);
  test_assert(3, chThdGetPriorityX() == p1, "wrong priority level");
  chThdSleepMilliseconds(100);
  test_assert(4, chThdGetPriorityX() == p2, "wrong priority level");
  chMtxUnlock(&m1);
  test_assert(5, chThdGetPriorityX() == p1, "wrong priority level");
  chThdSleepMilliseconds(100);
  test_assert(6, chThdGetPriorityX() == p1, "wrong priority level");
  chMtxUnlockAll();
  test_assert(7, chThdGetPriorityX() == p, "wrong priority level");
  test_wait_threads();

  /* Test repeated in order to cover chMtxUnlockS().*/
  threads[0] = chThdCreateStatic(wa[0], WA_SIZE, p1, thread4a, "D");
  threads[1] = chThdCreateStatic(wa[1], WA_SIZE, p2, thread4b, "C");
  chMtxLock(&m2);
  test_assert(8, chThdGetPriorityX() == p, "wrong priority level");
  chThdSleepMilliseconds(100);
  test_assert(9, chThdGetPriorityX() == p1, "wrong priority level");
  chMtxLock(&m1);
  test_assert(10, chThdGetPriorityX() == p1, "wrong priority level");
  chThdSleepMilliseconds(100);
  test_assert(11, chThdGetPriorityX() == p2, "wrong priority level");
  chSysLock();
  chMtxUnlockS(&m1);
  chSchRescheduleS();
  chSysUnlock();
  test_assert(12, chThdGetPriorityX() == p1, "wrong priority level");
  chThdSleepMilliseconds(100);
  test_assert(13, chThdGetPriorityX() == p1, "wrong priority level");
  chMtxUnlockAll();
  test_assert(14, chThdGetPriorityX() == p, "wrong priority level");
  test_wait_threads();
}
Example #8
0
/**
 * @brief   Waits on the condition variable releasing the mutex lock.
 * @details Releases the currently owned mutex, waits on the condition
 *          variable, and finally acquires the mutex again. All the sequence
 *          is performed atomically.
 * @pre     The invoking thread <b>must</b> have at least one owned mutex.
 * @pre     The configuration option @p CH_USE_CONDVARS_TIMEOUT must be enabled
 *          in order to use this function.
 * @post    Exiting the function because a timeout does not re-acquire the
 *          mutex, the mutex ownership is lost.
 *
 * @param[in] cp        pointer to the @p CondVar structure
 * @param[in] time      the number of ticks before the operation timeouts, the
 *                      special values are handled as follow:
 *                      - @a TIME_INFINITE no timeout.
 *                      - @a TIME_IMMEDIATE this value is not allowed.
 *                      .
 * @return              A message specifying how the invoking thread has been
 *                      released from the condition variable.
 * @retval RDY_OK       if the condvar has been signaled using
 *                      @p chCondSignal().
 * @retval RDY_RESET    if the condvar has been signaled using
 *                      @p chCondBroadcast().
 * @retval RDY_TIMEOUT  if the condvar has not been signaled within the
 *                      specified timeout.
 *
 * @sclass
 */
msg_t chCondWaitTimeoutS(CondVar *cp, systime_t time) {
  Mutex *mp;
  msg_t msg;

  chDbgCheck((cp != NULL) && (time != TIME_IMMEDIATE), "chCondWaitTimeoutS");
  chDbgAssert(currp->p_mtxlist != NULL,
              "chCondWaitTimeoutS(), #1",
              "not owning a mutex");

  mp = chMtxUnlockS();
  currp->p_u.wtobjp = cp;
  prio_insert(currp, &cp->c_queue);
  msg = chSchGoSleepTimeoutS(THD_STATE_WTCOND, time);
  if (msg != RDY_TIMEOUT)
    chMtxLockS(mp);
  return msg;
}
Example #9
0
/**
 * @brief   Waits on the condition variable releasing the mutex lock.
 * @details Releases the currently owned mutex, waits on the condition
 *          variable, and finally acquires the mutex again. All the sequence
 *          is performed atomically.
 * @pre     The invoking thread <b>must</b> have at least one owned mutex.
 * @pre     The configuration option @p CH_CFG_USE_CONDVARS_TIMEOUT must be enabled
 *          in order to use this function.
 * @post    Exiting the function because a timeout does not re-acquire the
 *          mutex, the mutex ownership is lost.
 *
 * @param[in] cp        pointer to the @p condition_variable_t structure
 * @param[in] time      the number of ticks before the operation timeouts, the
 *                      special values are handled as follow:
 *                      - @a TIME_INFINITE no timeout.
 *                      - @a TIME_IMMEDIATE this value is not allowed.
 *                      .
 * @return              A message specifying how the invoking thread has been
 *                      released from the condition variable.
 * @retval MSG_OK       if the condition variable has been signaled using
 *                      @p chCondSignal().
 * @retval MSG_RESET    if the condition variable has been signaled using
 *                      @p chCondBroadcast().
 * @retval MSG_TIMEOUT  if the condition variable has not been signaled within
 *                      the specified timeout.
 *
 * @sclass
 */
msg_t chCondWaitTimeoutS(condition_variable_t *cp, systime_t time) {
  mutex_t *mp;
  msg_t msg;

  chDbgCheckClassS();
  chDbgCheck((cp != NULL) && (time != TIME_IMMEDIATE));
  chDbgAssert(currp->p_mtxlist != NULL, "not owning a mutex");

  mp = chMtxGetNextMutexS();
  chMtxUnlockS(mp);
  currp->p_u.wtobjp = cp;
  queue_prio_insert(currp, &cp->c_queue);
  msg = chSchGoSleepTimeoutS(CH_STATE_WTCOND, time);
  if (msg != MSG_TIMEOUT)
    chMtxLockS(mp);
  return msg;
}
Example #10
0
/**
 * @brief   Waits on the condition variable releasing the mutex lock.
 * @details Releases the currently owned mutex, waits on the condition
 *          variable, and finally acquires the mutex again. All the sequence
 *          is performed atomically.
 * @pre     The invoking thread <b>must</b> have at least one owned mutex.
 *
 * @param[in] cp        pointer to the @p CondVar structure
 * @return              A message specifying how the invoking thread has been
 *                      released from the condition variable.
 * @retval RDY_OK       if the condvar has been signaled using
 *                      @p chCondSignal().
 * @retval RDY_RESET    if the condvar has been signaled using
 *                      @p chCondBroadcast().
 *
 * @sclass
 */
msg_t chCondWaitS(CondVar *cp) {
  Thread *ctp = currp;
  Mutex *mp;
  msg_t msg;

  chDbgCheck(cp != NULL, "chCondWaitS");
  chDbgAssert(ctp->p_mtxlist != NULL,
              "chCondWaitS(), #1",
              "not owning a mutex");

  mp = chMtxUnlockS();
  ctp->p_u.wtobjp = cp;
  prio_insert(ctp, &cp->c_queue);
  chSchGoSleepS(THD_STATE_WTCOND);
  msg = ctp->p_u.rdymsg;
  chMtxLockS(mp);
  return msg;
}
Example #11
0
/**
 * @brief   Waits on the condition variable releasing the mutex lock.
 * @details Releases the currently owned mutex, waits on the condition
 *          variable, and finally acquires the mutex again. All the sequence
 *          is performed atomically.
 * @pre     The invoking thread <b>must</b> have at least one owned mutex.
 *
 * @param[in] cp        pointer to the @p condition_variable_t structure
 * @return              A message specifying how the invoking thread has been
 *                      released from the condition variable.
 * @retval MSG_OK       if the condition variable has been signaled using
 *                      @p chCondSignal().
 * @retval MSG_RESET    if the condition variable has been signaled using
 *                      @p chCondBroadcast().
 *
 * @sclass
 */
msg_t chCondWaitS(condition_variable_t *cp) {
  thread_t *ctp = currp;
  mutex_t *mp;
  msg_t msg;

  chDbgCheckClassS();
  chDbgCheck(cp != NULL);
  chDbgAssert(ctp->p_mtxlist != NULL, "not owning a mutex");

  mp = chMtxGetNextMutexS();
  chMtxUnlockS(mp);
  ctp->p_u.wtobjp = cp;
  queue_prio_insert(ctp, &cp->c_queue);
  chSchGoSleepS(CH_STATE_WTCOND);
  msg = ctp->p_u.rdymsg;
  chMtxLockS(mp);
  return msg;
}
Example #12
0
/**
 * @brief   Waits on the condition variable releasing the mutex lock.
 * @details Releases the currently owned mutex, waits on the condition
 *          variable, and finally acquires the mutex again. All the sequence
 *          is performed atomically.
 * @pre     The invoking thread <b>must</b> have at least one owned mutex.
 * @pre     The configuration option @p CH_CFG_USE_CONDVARS_TIMEOUT must be enabled
 *          in order to use this function.
 * @post    Exiting the function because a timeout does not re-acquire the
 *          mutex, the mutex ownership is lost.
 *
 * @param[in] cp        pointer to the @p condition_variable_t structure
 * @param[in] time      the number of ticks before the operation timeouts, the
 *                      special values are handled as follow:
 *                      - @a TIME_INFINITE no timeout.
 *                      - @a TIME_IMMEDIATE this value is not allowed.
 *                      .
 * @return              A message specifying how the invoking thread has been
 *                      released from the condition variable.
 * @retval MSG_OK       if the condition variable has been signaled using
 *                      @p chCondSignal().
 * @retval MSG_RESET    if the condition variable has been signaled using
 *                      @p chCondBroadcast().
 * @retval MSG_TIMEOUT  if the condition variable has not been signaled within
 *                      the specified timeout.
 *
 * @sclass
 */
msg_t chCondWaitTimeoutS(condition_variable_t *cp, systime_t time) {
  mutex_t *mp;
  msg_t msg;

  chDbgCheckClassS();
  chDbgCheck((cp != NULL) && (time != TIME_IMMEDIATE));
  chDbgAssert(currp->p_mtxlist != NULL, "not owning a mutex");

  /* Getting "current" mutex and releasing it.*/
  mp = chMtxGetNextMutexS();
  chMtxUnlockS(mp);

  /* Start waiting on the condition variable, on exit the mutex is taken
     again.*/
  currp->p_u.wtobjp = cp;
  queue_prio_insert(currp, &cp->c_queue);
  msg = chSchGoSleepTimeoutS(CH_STATE_WTCOND, time);
  if (msg != MSG_TIMEOUT) {
    chMtxLockS(mp);
  }

  return msg;
}
Example #13
0
/**
 * @brief   Waits on the condition variable releasing the mutex lock.
 * @details Releases the currently owned mutex, waits on the condition
 *          variable, and finally acquires the mutex again. All the sequence
 *          is performed atomically.
 * @pre     The invoking thread <b>must</b> have at least one owned mutex.
 *
 * @param[in] cp        pointer to the @p condition_variable_t structure
 * @return              A message specifying how the invoking thread has been
 *                      released from the condition variable.
 * @retval MSG_OK       if the condition variable has been signaled using
 *                      @p chCondSignal().
 * @retval MSG_RESET    if the condition variable has been signaled using
 *                      @p chCondBroadcast().
 *
 * @sclass
 */
msg_t chCondWaitS(condition_variable_t *cp) {
  thread_t *ctp = currp;
  mutex_t *mp;
  msg_t msg;

  chDbgCheckClassS();
  chDbgCheck(cp != NULL);
  chDbgAssert(ctp->p_mtxlist != NULL, "not owning a mutex");

  /* Getting "current" mutex and releasing it.*/
  mp = chMtxGetNextMutexS();
  chMtxUnlockS(mp);

  /* Start waiting on the condition variable, on exit the mutex is taken
     again.*/
  ctp->p_u.wtobjp = cp;
  queue_prio_insert(ctp, &cp->c_queue);
  chSchGoSleepS(CH_STATE_WTCOND);
  msg = ctp->p_u.rdymsg;
  chMtxLockS(mp);

  return msg;
}
Example #14
0
void BaseThread::unlockMutexS(void) {

    chMtxUnlockS();
}
Example #15
0
  void BaseThread::unlockMutexS(Mutex *mp) {

    chMtxUnlockS(&mp->mutex);
  }
Example #16
0
File: ch.cpp Project: sdalu/ChibiOS
  void Mutex::unlockS(void) {

    chMtxUnlockS(&mutex);
  }