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author | Alex Shi <alex.shi@linaro.org> | 2013-10-15 10:35:02 +0800 |
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committer | Alex Shi <alex.shi@linaro.org> | 2013-10-15 10:35:02 +0800 |
commit | b660011c5c1066762b8d29e238a3a478b6f02bf4 (patch) | |
tree | a04058e9f6fcbdce048bbb662de8fb74972dfa92 /tools/gator/daemon/Fifo.h | |
parent | f85b6e7b8e12028219057306eaf24c8d77a5c0c3 (diff) | |
parent | 01239d6842a2e2653b7b42736cf2c10b69d0face (diff) |
Merge remote-tracking branch 'arm-landing/lsk-3.10-gator' into linux-linaro-lsk-android-testlsk-android-13.10
Diffstat (limited to 'tools/gator/daemon/Fifo.h')
-rw-r--r-- | tools/gator/daemon/Fifo.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/tools/gator/daemon/Fifo.h b/tools/gator/daemon/Fifo.h new file mode 100644 index 00000000000..ada42b9fb58 --- /dev/null +++ b/tools/gator/daemon/Fifo.h @@ -0,0 +1,44 @@ +/** + * Copyright (C) ARM Limited 2010-2013. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __FIFO_H__ +#define __FIFO_H__ + +#ifdef WIN32 +#include <windows.h> +#define sem_t HANDLE +#define sem_init(sem, pshared, value) ((*(sem) = CreateSemaphore(NULL, value, INFINITE, NULL)) == NULL) +#define sem_wait(sem) WaitForSingleObject(*(sem), INFINITE) +#define sem_post(sem) ReleaseSemaphore(*(sem), 1, NULL) +#define sem_destroy(sem) CloseHandle(*(sem)) +#else +#include <semaphore.h> +#endif + +class Fifo { +public: + Fifo(int singleBufferSize, int totalBufferSize, sem_t* readerSem); + ~Fifo(); + int numBytesFilled() const; + bool isEmpty() const; + bool isFull() const; + bool willFill(int additional) const; + char* start() const; + char* write(int length); + void release(); + char* read(int *const length); + +private: + int mSingleBufferSize, mWrite, mRead, mReadCommit, mRaggedEnd, mWrapThreshold; + sem_t mWaitForSpaceSem; + sem_t* mReaderSem; + char* mBuffer; + bool mEnd; +}; + +#endif //__FIFO_H__ |