71 lines
1.5 KiB
C++
71 lines
1.5 KiB
C++
/*
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* Copyright 2009, Haiku Inc. All Rights Reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _BUFFER_GROUP_H
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#define _BUFFER_GROUP_H
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#include <MediaDefs.h>
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class BBuffer;
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namespace BPrivate {
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struct SharedBufferList;
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}
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class BBufferGroup {
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public:
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BBufferGroup(size_t size, int32 count = 3,
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uint32 placement = B_ANY_ADDRESS,
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uint32 lock = B_FULL_LOCK);
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explicit BBufferGroup();
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BBufferGroup(int32 count,
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const media_buffer_id* buffers);
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~BBufferGroup();
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status_t InitCheck();
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status_t AddBuffer(const buffer_clone_info& info,
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BBuffer** _buffer = NULL);
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BBuffer* RequestBuffer(size_t size,
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bigtime_t timeout = B_INFINITE_TIMEOUT);
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status_t RequestBuffer(BBuffer* buffer,
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bigtime_t timeout = B_INFINITE_TIMEOUT);
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status_t RequestError();
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status_t CountBuffers(int32* _count);
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status_t GetBufferList(int32 bufferCount,
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BBuffer** _buffers);
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status_t WaitForBuffers();
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status_t ReclaimAllBuffers();
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private:
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// deprecated BeOS R4 API
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status_t AddBuffersTo(BMessage* message, const char* name,
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bool needLock);
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BBufferGroup(const BBufferGroup& other);
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BBufferGroup& operator=(const BBufferGroup& other);
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status_t _Init();
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private:
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friend struct BPrivate::SharedBufferList;
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status_t fInitError;
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status_t fRequestError;
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int32 fBufferCount;
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BPrivate::SharedBufferList* fBufferList;
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sem_id fReclaimSem;
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uint32 _reserved[9];
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};
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#endif // _BUFFER_GROUP_H
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