datafileoperation.cpp

来自「linux下用c++编写的录音放音程序」· C++ 代码 · 共 67 行

// DataFileOperation.cpp: implementation of the CDataFileOperation class.
//
//////////////////////////////////////////////////////////////////////

#include "DataFileOperation.h"
#include "ParamDef.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CDataFileOperation::CDataFileOperation()
{

}

CDataFileOperation::~CDataFileOperation()
{

}

bool CDataFileOperation::OpenFile(const char *file_name, unsigned int flag)
{
	/*open sound data file */
    if (flag == ACT_RECORD) {
		if ((m_fileFD = open(file_name, O_WRONLY)) < 0) {
			if ((m_fileFD = creat(file_name, 0777)) < 0) {
				printf("error in open with mode O_WRONLY\n");
				return false;
			}
		}
    } else if (flag == ACT_PLAY) {
		if ((m_fileFD = open(file_name, O_RDONLY)) < 0) {
			printf("error in open with mode O_RDONLY\n");
			return false;
		}
    }
	
	return true;
}

bool CDataFileOperation::CloseFile()
{
	close(m_fileFD);
	return true;
}

int CDataFileOperation::Write(char *buf, int size)
{
	int tCount = 0;
	tCount = write(m_fileFD, buf, size);
	return tCount;
}

int CDataFileOperation::Read(char *buf, int size)
{
	int tCount = 0;
	tCount = read(m_fileFD, buf, size);
	return tCount;
}