Last change
on this file since 11 was 3, checked in by sgosseli, 12 years ago |
- Add the existing Pacpus files from pacpusdev and pacpuscore.
- Provide a clean build system based on multiple CMake files.
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File size:
1.5 KB
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Rev | Line | |
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[3] | 1 | /*********************************************************************
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| 2 | // created: 2006/12/30 - 17:35
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| 3 | // filename: ShMemBase.h
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| 4 | //
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| 5 | // author: Gerald Dherbomez
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| 6 | //
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| 7 | // version: $Id: ShMemBase.h 929 2012-03-27 15:49:00Z kurdejma $
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| 8 | //
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| 9 | // purpose: Abstract class for shared memory
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| 10 | *********************************************************************/
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| 11 |
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| 12 | #ifndef SHMEMBASE_H
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| 13 | #define SHMEMBASE_H
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| 14 |
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| 15 | class ShMemBase
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| 16 | {
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| 17 | public:
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| 18 | ShMemBase()
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| 19 | {
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| 20 | /*printf("ShMemBase::ShMemBase() not implemented !\n");*/
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| 21 | }
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| 22 |
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| 23 | virtual ~ShMemBase()
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| 24 | {
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| 25 | /*printf("ShMemBase::~ShMemBase() not implemented !\n");*/
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| 26 | }
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| 27 |
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| 28 | // Use this method to get the data of the shared memory
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| 29 | virtual void *read() = 0;
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| 30 |
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| 31 | // Use this method to write data in shared memory
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| 32 | virtual void write(void *data, int size, unsigned long offset = 0) = 0;
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| 33 |
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| 34 | // Use this method to wait the incoming of new data
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| 35 | // you can specify a timeout in ms to avoid infinite blocking or 0 (infinite)
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| 36 | // return true if new data available before the timeout or else false
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| 37 | virtual bool wait(unsigned long timeout = 0) = 0;
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| 38 |
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| 39 | // To lock the access to the memory
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| 40 | virtual void lockMemory() = 0;
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| 41 |
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| 42 | // To unlock the access to the memory
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| 43 | virtual void unlockMemory() = 0;
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| 44 |
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| 45 | #ifdef WIN32
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| 46 | // Return the event handle under Windows
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| 47 | // ... under Linux ?
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| 48 | virtual void * getEventIdentifier() = 0;
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| 49 | #endif
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| 50 |
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| 51 | protected:
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| 52 | void * shMem_;
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| 53 |
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| 54 | private:
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| 55 | };
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| 56 |
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| 57 | #endif // SHMEMBASE_H
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