urbackup_backend/Interface/Pipe.h
2011-01-06 17:43:38 +01:00

36 lines
862 B
C++

#ifndef IPIPE_H
#define IPIPE_H
#include <string>
#include "Object.h"
class IPipe : public IObject
{
public:
/**
* @param timeoutms -1 for blocking >=0 to block only for x ms. Default: blocking
*/
virtual size_t Read(char *buffer, size_t bsize, int timeoutms=-1)=0;
virtual bool Write(const char *buffer, size_t bsize, int timeoutms=-1)=0;
virtual size_t Read(std::string *ret, int timeoutms=-1)=0;
virtual bool Write(const std::string &str, int timeoutms=-1)=0;
/**
* @param timeoutms -1 for blocking >=0 to block only for x ms. Default: nonblocking
*/
virtual bool isWritable(int timeoutms=0)=0;
virtual bool isReadable(int timeoutms=0)=0;
virtual bool hasError(void)=0;
virtual void shutdown(void)=0;
/**
* only works with memory pipe
**/
virtual size_t getNumElements(void)=0;
};
#endif //IPIPE_H