//从device1中通过fromdevice读出size大小的文件块,再通过todevice写入device2中
void HLN_IOWork(QDataStream &fromDevice, QDataStream &toDevice, qint64 size)
{
char *p = new char[BLOCKSIZE];
while (size > 0)
{
if (size >= BLOCKSIZE)//如果图片文件大于BLOCKSIZE,每次读BLOCKSIZE
{
fromDevice.readRawData(p, BLOCKSIZE);
toDevice.writeRawData(p, BLOCKSIZE);
size -= BLOCKSIZE;
}
else//当文件剩余部分小于BLOCKSIZE时,将剩余部分一次性读出
{
fromDevice.readRawData(p, size);
toDevice.writeRawData(p, size);
size -= size;
}
}
delete []p;
}
[ 此贴被wuxian610在2005-11-02 15:48重新编辑 ]