52 lines
1.8 KiB
C
52 lines
1.8 KiB
C
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#ifndef ANDROIDSHM
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#define ANDROIDSHM
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#include <binder/Parcel.h>
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#include "BnAndroidShm.h"
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#include <utils/Log.h>
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#include <binder/MemoryHeapBase.h>
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#include "shm.h"
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#include "android/Shm.h" //android extension of shm.h
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namespace android {
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class AndroidShm : public BnAndroidShm
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{
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#define MAX_SHARED_MEMORY_COUNT 257
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private:
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int MemAlloc(unsigned int size);
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public:
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virtual ~AndroidShm();
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static int instantiate();
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virtual int sendCommand(const char* command);
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virtual int allocShm(const int size); // if negative return value is error
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virtual int removeShm(const unsigned int index); // shared memory <20><><EFBFBD><EFBFBD>
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virtual int isAllocated(const unsigned int index); // allocated <20><><EFBFBD><EFBFBD> Ȯ<><C8AE>
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virtual int setRegistryIndex(const unsigned int index);
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virtual int getRegistryIndex();
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virtual sp<IMemoryHeap> InitSemaphore(const char* name);
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virtual sp<IMemoryHeap> getBuffer(int index);
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//virtual status_t onTransact(
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// uint32_t code,
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// const Parcel& data,
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// Parcel* reply,
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// uint32_t flags);
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private:
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int testGetBuffer();
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int testGetBufferByNewProcess();
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AndroidShm();
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sp<MemoryHeapBase> mMemHeap[MAX_SHARED_MEMORY_COUNT];
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unsigned int mRegistryIndex;
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// for named semaphore simulation
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#define MAX_SEMAPHORE_MEMORY_COUNT 300
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#define MAX_SEMAPHORE_NAME_LENGTH 300
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sp<MemoryHeapBase> mSemaphore[MAX_SEMAPHORE_MEMORY_COUNT];
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char mSemaphoreName[MAX_SEMAPHORE_MEMORY_COUNT][MAX_SEMAPHORE_NAME_LENGTH];
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};
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};
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#endif
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