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42 lines
1.7 KiB
42 lines
1.7 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 _EVENT_Q_H_
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#define _EVENT_Q_H_
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#include <stdbool.h>
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#include <stdint.h>
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#include <plat/taggedPtr.h>
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#define EVENT_TYPE_BIT_DISCARDABLE_COMPAT 0x80000000 /* some external apps are using this one */
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#define EVENT_TYPE_BIT_DISCARDABLE 0x8000 /* set for events we can afford to lose */
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struct EvtQueue;
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typedef void (*EvtQueueForciblyDiscardEvtCbkF)(uint32_t evtType, void *evtData, TaggedPtr evtFreeData);
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//multi-producer, SINGLE consumer queue
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struct EvtQueue* evtQueueAlloc(uint32_t size, EvtQueueForciblyDiscardEvtCbkF forceDiscardCbk);
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void evtQueueFree(struct EvtQueue* q);
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bool evtQueueEnqueue(struct EvtQueue* q, uint32_t evtType, void *evtData, TaggedPtr evtFreeData, bool atFront /* do not set this unless you know the repercussions. read: never set this in new code */);
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bool evtQueueDequeue(struct EvtQueue* q, uint32_t *evtTypeP, void **evtDataP, TaggedPtr *evtFreeDataP, bool sleepIfNone);
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void evtQueueRemoveAllMatching(struct EvtQueue* q, bool (*match)(uint32_t evtType, const void *data, void *context), void *context);
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#endif
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