mirror of https://github.com/ARMmbed/mbed-os.git
69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
/*
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* Copyright (c) 2018 ARM Limited. All rights reserved.
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* SPDX-License-Identifier: Apache-2.0
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* Licensed under the Apache License, Version 2.0 (the License); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an AS IS BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "mbed_assert.h"
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#include "cmsis.h"
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#include "cmsis_os2.h"
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#include "mbed_rtos_storage.h"
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#include "ns_trace.h"
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#include "eventOS_scheduler.h"
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#include "ns_event_loop_mutex.h"
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#define TRACE_GROUP "evlm"
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static mbed_rtos_storage_mutex_t event_mutex;
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static const osMutexAttr_t event_mutex_attr = {
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.name = "nanostack_event_mutex",
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.attr_bits = osMutexRecursive | osMutexPrioInherit | osMutexRobust,
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.cb_mem = &event_mutex,
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.cb_size = sizeof event_mutex,
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};
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static osMutexId_t event_mutex_id;
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static osThreadId_t event_mutex_owner_id = NULL;
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static uint32_t owner_count = 0;
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void eventOS_scheduler_mutex_wait(void)
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{
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osMutexAcquire(event_mutex_id, osWaitForever);
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if (0 == owner_count) {
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event_mutex_owner_id = osThreadGetId();
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}
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owner_count++;
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}
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void eventOS_scheduler_mutex_release(void)
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{
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owner_count--;
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if (0 == owner_count) {
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event_mutex_owner_id = NULL;
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}
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osMutexRelease(event_mutex_id);
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}
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uint8_t eventOS_scheduler_mutex_is_owner(void)
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{
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return osThreadGetId() == event_mutex_owner_id ? 1 : 0;
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}
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void ns_event_loop_mutex_init(void)
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{
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event_mutex_id = osMutexNew(&event_mutex_attr);
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MBED_ASSERT(event_mutex_id != NULL);
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}
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