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39 lines
1.3 KiB
39 lines
1.3 KiB
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may 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,
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* WITHOUT 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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#ifndef _SIMPLE_Q_H_
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#define _SIMPLE_Q_H_
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#include <stdbool.h>
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#include <stdint.h>
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#define SIMPLE_QUEUE_MAX_ELEMENTS 0x0FFFFFFE
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typedef bool (*SimpleQueueForciblyDiscardCbkF)(void *data, bool onDelete); //return false to reject
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//SINGLE producer, SINGLE consumer queue. data is copied INTO/OUT of the queue by simpleQueueEnqueue/simpleQueueDequeue
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struct SimpleQueue* simpleQueueAlloc(uint32_t numEntries, uint32_t entrySz, SimpleQueueForciblyDiscardCbkF forceDiscardCbk);
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void simpleQueueDestroy(struct SimpleQueue* sq); //will call discard, but in no particular order!
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bool simpleQueueEnqueue(struct SimpleQueue* sq, const void *data, int length, bool possiblyDiscardable);
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bool simpleQueueDequeue(struct SimpleQueue* sq, void *dataVal);
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#endif
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