void raw_task_free_mutex(RAW_TASK_OBJ *tcb)
{
RAW_MUTEX *mtxcb, *next_mtxcb;
RAW_TASK_OBJ *next_tcb;
LIST *block_list_head;
next_mtxcb = tcb->mtxlist;
while ((mtxcb = next_mtxcb) != 0) {
next_mtxcb = mtxcb->mtxlist;
block_list_head = &mtxcb->common_block_obj.block_list;
if (!is_list_empty(block_list_head)) {
next_tcb = raw_list_entry(block_list_head->next, RAW_TASK_OBJ, task_list);
/* Wake wait task */
raw_wake_object(next_tcb);
/* Change mutex get task */
mtxcb->mtxtsk = next_tcb;
mtxcb->mtxlist = next_tcb->mtxlist;
next_tcb->mtxlist = mtxcb;
if (mtxcb->policy == RAW_MUTEX_CEILING_POLICY) {
if (next_tcb->priority > mtxcb->ceiling_prio) {
/* Raise the priority for the task
that got lock to the highest
priority limit */
change_internal_task_priority(next_tcb, mtxcb->ceiling_prio);
}
}
}
else {
/* No wait task */
mtxcb->mtxtsk = 0;
}
}
}
RAW_OS_ERROR semaphore_put(RAW_SEMAPHORE *semaphore_ptr, RAW_U8 opt_wake_all)
{
LIST *block_list_head;
RAW_SR_ALLOC();
RAW_CRITICAL_ENTER();
if (semaphore_ptr->common_block_obj.object_type != RAW_SEM_OBJ_TYPE) {
RAW_CRITICAL_EXIT();
return RAW_ERROR_OBJECT_TYPE;
}
block_list_head = &semaphore_ptr->common_block_obj.block_list;
/*if no block task on this list just return*/
if (is_list_empty(block_list_head)) {
if (semaphore_ptr->count == (RAW_PROCESSOR_UINT) - 1) {
RAW_CRITICAL_EXIT();
TRACE_SEMAPHORE_OVERFLOW(raw_task_active, semaphore_ptr);
return RAW_SEMAPHORE_OVERFLOW;
}
/*increase resource*/
semaphore_ptr->count++;
if (semaphore_ptr->count > semaphore_ptr->peak_count) {
semaphore_ptr->peak_count = semaphore_ptr->count;
}
RAW_CRITICAL_EXIT();
/*if semphore is registered with notify function just call it*/
if (semaphore_ptr->semphore_send_notify) {
semaphore_ptr->semphore_send_notify(semaphore_ptr);
}
TRACE_SEMAPHORE_COUNT_INCREASE(raw_task_active, semaphore_ptr);
return RAW_SUCCESS;
}
/*wake all the task blocked on this semphore*/
if (opt_wake_all) {
while (!is_list_empty(block_list_head)) {
raw_wake_object(raw_list_entry(block_list_head->next, RAW_TASK_OBJ, task_list));
TRACE_SEM_WAKE_TASK(raw_task_active, raw_list_entry(block_list_head->next, RAW_TASK_OBJ, task_list), opt_wake_all);
}
}
else {
/*Wake up the highest priority task block on the semaphore*/
raw_wake_object(raw_list_entry(block_list_head->next, RAW_TASK_OBJ, task_list));
TRACE_SEM_WAKE_TASK(raw_task_active, raw_list_entry(block_list_head->next, RAW_TASK_OBJ, task_list), opt_wake_all);
}
RAW_CRITICAL_EXIT();
raw_sched();
return RAW_SUCCESS;
}
RAW_U16 event_set(RAW_EVENT *event_ptr, RAW_U32 flags_to_set, RAW_U8 set_option)
{
LIST *iter;
LIST *event_head_ptr;
LIST *iter_temp;
RAW_TASK_OBJ *task_ptr;
RAW_U8 status;
RAW_SR_ALLOC();
status = RAW_FALSE;
RAW_CRITICAL_ENTER();
if (event_ptr->common_block_obj.object_type != RAW_EVENT_OBJ_TYPE) {
RAW_CRITICAL_EXIT();
return RAW_ERROR_OBJECT_TYPE;
}
event_head_ptr = &event_ptr->common_block_obj.block_list;
/*if the set_option is AND_MASK, it just clear the flags and will return immediately!*/
if (set_option & RAW_FLAGS_AND_MASK) {
event_ptr->flags &= flags_to_set;
RAW_CRITICAL_EXIT();
return RAW_SUCCESS;
}
/*if it is or mask then set the flag and continue.........*/
else {
event_ptr->flags |= flags_to_set;
}
iter = event_head_ptr->next;
/*if list is not empty*/
while (iter != event_head_ptr) {
task_ptr = list_entry(iter, RAW_TASK_OBJ, task_list);
iter_temp = iter->next;
if (task_ptr->raw_suspend_option & RAW_FLAGS_AND_MASK) {
if ((event_ptr->flags & task_ptr ->raw_suspend_flags) == task_ptr ->raw_suspend_flags) {
status = RAW_TRUE;
}
else {
status = RAW_FALSE;
}
}
else {
if (event_ptr->flags & task_ptr ->raw_suspend_flags) {
status = RAW_TRUE;
}
else {
status = RAW_FALSE;
}
}
if (status == RAW_TRUE) {
(*(RAW_U32 *)(task_ptr->raw_additional_suspend_info)) = event_ptr->flags;
/*Ok the task condition is met, just wake this task*/
raw_wake_object(task_ptr);
TRACE_EVENT_WAKE(raw_task_active, task_ptr);
}
iter = iter_temp;
}
RAW_CRITICAL_EXIT();
raw_sched();
return RAW_SUCCESS;
}
/*
************************************************************************************************************************
* Release a mutex
*
* Description: This function is called to release a mutex.
*
* Arguments :mutex_ptr is the address of the mutex object want to be released
*
*
*
* Returns RAW_SUCCESS: raw os return success
* Note(s) Any task pended on this semphore will be waked up and will return RAW_B_DEL.
*
*
************************************************************************************************************************
*/
RAW_OS_ERROR raw_mutex_put(RAW_MUTEX *mutex_ptr)
{
LIST *block_list_head;
RAW_TASK_OBJ *tcb;
RAW_SR_ALLOC();
#if (RAW_MUTEX_FUNCTION_CHECK > 0)
if (mutex_ptr == 0) {
return RAW_NULL_OBJECT;
}
if (raw_int_nesting) {
return RAW_NOT_CALLED_BY_ISR;
}
#endif
RAW_CRITICAL_ENTER();
if (mutex_ptr->common_block_obj.object_type != RAW_MUTEX_OBJ_TYPE) {
RAW_CRITICAL_EXIT();
return RAW_ERROR_OBJECT_TYPE;
}
/*Must release the mutex by self*/
if (raw_task_active != mutex_ptr->mtxtsk) {
RAW_CRITICAL_EXIT();
return RAW_MUTEX_NOT_RELEASE_BY_OCCYPY;
}
mutex_ptr->owner_nested--;
if (mutex_ptr->owner_nested) {
RAW_CRITICAL_EXIT();
return RAW_MUTEX_OWNER_NESTED;
}
release_mutex(raw_task_active, mutex_ptr);
block_list_head = &mutex_ptr->common_block_obj.block_list;
/*if no block task on this list just return*/
if (is_list_empty(block_list_head)) {
/* No wait task */
mutex_ptr->mtxtsk = 0;
RAW_CRITICAL_EXIT();
TRACE_MUTEX_RELEASE_SUCCESS(raw_task_active, mutex_ptr);
return RAW_SUCCESS;
}
/* there must have task blocked on this mutex object*/
tcb = raw_list_entry(block_list_head->next, RAW_TASK_OBJ, task_list);
/*Wake up the occupy task, which is the highst priority task on the list*/
raw_wake_object(tcb);
/* Change mutex get task */
mutex_ptr->mtxtsk = tcb;
mutex_ptr->mtxlist = tcb->mtxlist;
tcb->mtxlist = mutex_ptr;
mutex_ptr->owner_nested = 1u;
if (mutex_ptr->policy == RAW_MUTEX_CEILING_POLICY) {
if (tcb->priority > mutex_ptr->ceiling_prio) {
/* Raise the priority of the task that
got lock to the highest priority limit */
change_internal_task_priority(tcb, mutex_ptr->ceiling_prio);
}
}
TRACE_MUTEX_WAKE_TASK(raw_task_active, tcb);
RAW_CRITICAL_EXIT();
raw_sched();
return RAW_SUCCESS;
}
RAW_U16 queue_buffer_post(RAW_QUEUE_BUFFER *q_b, RAW_VOID *p_void, MSG_SIZE_TYPE msg_size, RAW_U8 opt_send_method)
{
LIST *block_list_head;
RAW_TASK_OBJ *task_ptr;
RAW_SR_ALLOC();
RAW_CRITICAL_ENTER();
if (q_b->common_block_obj.object_type != RAW_QUEUE_BUFFER_OBJ_TYPE) {
RAW_CRITICAL_EXIT();
return RAW_ERROR_OBJECT_TYPE;
}
block_list_head = &q_b->common_block_obj.block_list;
if (!is_queue_buffer_free(q_b, msg_size)) {
RAW_CRITICAL_EXIT();
TRACE_QUEUE_BUFFER_MAX(raw_task_active, q_b, p_void, msg_size, opt_send_method);
return RAW_QUEUE_BUFFER_FULL;
}
/*Queue buffer is not full here, if there is no blocked receive task*/
if (is_list_empty(block_list_head)) {
if (opt_send_method == SEND_TO_END) {
msg_to_end_buffer(q_b, p_void, msg_size);
}
else {
}
RAW_CRITICAL_EXIT();
TRACE_QUEUE_BUFFER_POST(raw_task_active, q_b, p_void, msg_size, opt_send_method);
return RAW_SUCCESS;
}
task_ptr = list_entry(block_list_head->next, RAW_TASK_OBJ, task_list);
raw_memcpy(task_ptr->msg, p_void, msg_size);
task_ptr->qb_msg_size = msg_size;
raw_wake_object(task_ptr);
RAW_CRITICAL_EXIT();
TRACE_QUEUE_BUFFER_WAKE_TASK(raw_task_active, list_entry(block_list_head->next, RAW_TASK_OBJ, task_list), p_void, msg_size, opt_send_method);
raw_sched();
return RAW_SUCCESS;
}