semobject.h

C++封装的视频采集代码

/*
    Semaphore Object wrapper
*/

#ifndef SEM_OBJECT_H
#define SEM_OBJECT_H

#include <pthread.h>
#include <semaphore.h>


#define ERR_SEM_OBJECT_ALREADYINIT						-1
#define ERR_SEM_OBJECT_NOTINIT							-2
#define ERR_SEM_OBJECT_CANTCREATEMUTEX					-3

class SemObject
{
public:
	SemObject();
	~SemObject();
	int Init(int shared, unsigned int value);
	int Wait();
	int Try();
	int Post();
	bool IsInitialized(){ return initialized; }
private:
	sem_t sem;
	bool initialized;
};

#endif // SEM_OBJECT_H