Marco Zecchini
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Example_RTOS
Rtos API example
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uvisor_semaphore.h
00001 /* 00002 * Copyright (c) 2016, ARM Limited, All Rights Reserved 00003 * SPDX-License-Identifier: Apache-2.0 00004 * 00005 * Licensed under the Apache License, Version 2.0 (the "License"); you may 00006 * not use this file except in compliance with the License. 00007 * You may obtain a copy of the License at 00008 * 00009 * http://www.apache.org/licenses/LICENSE-2.0 00010 * 00011 * Unless required by applicable law or agreed to in writing, software 00012 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 00013 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00014 * See the License for the specific language governing permissions and 00015 * limitations under the License. 00016 */ 00017 #ifndef __UVISOR_API_UVISOR_SEMAPHORE_H__ 00018 #define __UVISOR_API_UVISOR_SEMAPHORE_H__ 00019 00020 #include "api/inc/uvisor_semaphore_exports.h" 00021 00022 /* Initialize a semaphore with the specified initial count. This function is 00023 * not safe to call from interrupt context. */ 00024 UVISOR_EXTERN int __uvisor_semaphore_init(UvisorSemaphore * semaphore, uint32_t initial_count, uint32_t max_count); 00025 00026 /* This function is not safe to call from interrupt context, even if the 00027 * timeout is zero. */ 00028 UVISOR_EXTERN int __uvisor_semaphore_pend(UvisorSemaphore * semaphore, uint32_t timeout_ms); 00029 00030 /* This function is safe to call from interrupt context. */ 00031 UVISOR_EXTERN int __uvisor_semaphore_post(UvisorSemaphore * semaphore); 00032 00033 #endif
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