40f55ec57b
1. posix pthread.h: pthread, pthread_barrier, pthread_cond, pthread_mutex, , pthread_rwlock, pthread_spin, etc 2. posix semaphore.h: sem_* 3. posix mqueue.h: mq_* 4. posix time.h: timer_* 5. to support posix, add tos_barrier, tos_bitmap, tos_rwlock, tos_stopwatch, change name of k_task_t from a char * pointer to a char array. 6. sample, see examples\posix 7. project, see board\TencentOS_tiny_EVB_MX_Plus\KEIL\posix
135 lines
3.8 KiB
C
135 lines
3.8 KiB
C
/*----------------------------------------------------------------------------
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* Tencent is pleased to support the open source community by making TencentOS
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* available.
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*
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* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
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* If you have downloaded a copy of the TencentOS binary from Tencent, please
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* note that the TencentOS binary is licensed under the BSD 3-Clause License.
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*
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* If you have downloaded a copy of the TencentOS source code from Tencent,
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* please note that TencentOS source code is licensed under the BSD 3-Clause
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* License, except for the third-party components listed below which are
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* subject to different license terms. Your integration of TencentOS into your
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* own projects may require compliance with the BSD 3-Clause License, as well
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* as the other licenses applicable to the third-party components included
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* within TencentOS.
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*---------------------------------------------------------------------------*/
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#include "tos_k.h"
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__API__ k_err_t tos_countdownlatch_create(k_countdownlatch_t *countdownlatch, k_countdownlatch_cnt_t count)
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{
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TOS_PTR_SANITY_CHECK(countdownlatch);
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countdownlatch->count = count;
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pend_object_init(&countdownlatch->pend_obj);
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TOS_OBJ_INIT(countdownlatch, KNL_OBJ_TYPE_COUNTDOWNLATCH);
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return K_ERR_NONE;
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}
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__API__ k_err_t tos_countdownlatch_destroy(k_countdownlatch_t *countdownlatch)
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{
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TOS_CPU_CPSR_ALLOC();
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TOS_PTR_SANITY_CHECK(countdownlatch);
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TOS_OBJ_VERIFY(countdownlatch, KNL_OBJ_TYPE_COUNTDOWNLATCH);
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TOS_CPU_INT_DISABLE();
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if (!pend_is_nopending(&countdownlatch->pend_obj)) {
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pend_wakeup_all(&countdownlatch->pend_obj, PEND_STATE_DESTROY);
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}
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pend_object_deinit(&countdownlatch->pend_obj);
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TOS_OBJ_DEINIT(countdownlatch);
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TOS_CPU_INT_ENABLE();
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knl_sched();
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return K_ERR_NONE;
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}
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__API__ k_err_t tos_countdownlatch_pend_timed(k_countdownlatch_t *countdownlatch, k_tick_t timeout)
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{
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TOS_CPU_CPSR_ALLOC();
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TOS_IN_IRQ_CHECK();
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TOS_PTR_SANITY_CHECK(countdownlatch);
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TOS_OBJ_VERIFY(countdownlatch, KNL_OBJ_TYPE_COUNTDOWNLATCH);
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TOS_CPU_INT_DISABLE();
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if (countdownlatch->count == (k_countdownlatch_cnt_t)0u) {
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TOS_CPU_INT_ENABLE();
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return K_ERR_NONE;
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}
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if (timeout == TOS_TIME_NOWAIT) { // no wait, return immediately
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TOS_CPU_INT_ENABLE();
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return K_ERR_PEND_NOWAIT;
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}
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if (knl_is_sched_locked()) {
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TOS_CPU_INT_ENABLE();
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return K_ERR_PEND_SCHED_LOCKED;
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}
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pend_task_block(k_curr_task, &countdownlatch->pend_obj, timeout);
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TOS_CPU_INT_ENABLE();
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knl_sched();
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return pend_state2errno(k_curr_task->pend_state);
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}
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__API__ k_err_t tos_countdownlatch_pend(k_countdownlatch_t *countdownlatch)
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{
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return tos_countdownlatch_pend_timed(countdownlatch, TOS_TIME_FOREVER);
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}
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__API__ k_err_t tos_countdownlatch_post(k_countdownlatch_t *countdownlatch)
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{
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TOS_CPU_CPSR_ALLOC();
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TOS_PTR_SANITY_CHECK(countdownlatch);
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TOS_OBJ_VERIFY(countdownlatch, KNL_OBJ_TYPE_COUNTDOWNLATCH);
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TOS_CPU_INT_DISABLE();
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if (countdownlatch->count == (k_countdownlatch_cnt_t)0) {
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TOS_CPU_INT_ENABLE();
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return K_ERR_COUNTDOWNLATCH_OVERFLOW;
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}
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--countdownlatch->count;
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if (countdownlatch->count > (k_countdownlatch_cnt_t)0) {
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TOS_CPU_INT_ENABLE();
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return K_ERR_NONE;
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}
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pend_wakeup_one(&countdownlatch->pend_obj, PEND_STATE_POST);
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TOS_CPU_INT_ENABLE();
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knl_sched();
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return K_ERR_NONE;
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}
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__API__ k_err_t tos_countdownlatch_reset(k_countdownlatch_t *countdownlatch, k_countdownlatch_cnt_t count)
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{
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TOS_CPU_CPSR_ALLOC();
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TOS_PTR_SANITY_CHECK(countdownlatch);
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TOS_OBJ_VERIFY(countdownlatch, KNL_OBJ_TYPE_COUNTDOWNLATCH);
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TOS_CPU_INT_DISABLE();
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countdownlatch->count = count;
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TOS_CPU_INT_ENABLE();
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return K_ERR_NONE;
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}
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