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// --------------------------------------------------------------------------
//
// File
// Name: FdGetLine.h
// Purpose: Line based file descriptor reading
// Created: 2003/07/24
//
// --------------------------------------------------------------------------
#ifndef FDGETLINE__H
#define FDGETLINE__H
#include <string>
#ifdef NDEBUG
#define FDGETLINE_BUFFER_SIZE 1024
#elif defined WIN32
// need enough space for at least one unicode character
// in UTF-8 when calling console_read() from bbackupquery
#define FDGETLINE_BUFFER_SIZE 5
#else
#define FDGETLINE_BUFFER_SIZE 4
#endif
// Just a very large upper bound for line size to avoid
// people sending lots of data over sockets and causing memory problems.
#define FDGETLINE_MAX_LINE_SIZE (1024*256)
// --------------------------------------------------------------------------
//
// Class
// Name: FdGetLine
// Purpose: Line based file descriptor reading
// Created: 2003/07/24
//
// --------------------------------------------------------------------------
class FdGetLine
{
public:
FdGetLine(int fd);
~FdGetLine();
private:
FdGetLine(const FdGetLine &rToCopy);
public:
std::string GetLine(bool Preprocess = false);
bool IsEOF() {return mEOF;}
int GetLineNumber() {return mLineNumber;}
// Call to detach, setting file pointer correctly to last bit read.
// Only works for lseek-able file descriptors.
void DetachFile();
private:
char mBuffer[FDGETLINE_BUFFER_SIZE];
int mFileHandle;
int mLineNumber;
int mBufferBegin;
int mBytesInBuffer;
bool mPendingEOF;
bool mEOF;
};
#endif // FDGETLINE__H
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