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- (size_t)_readNBytes: (size_t)size
intoBuffer: (char*)buf
{
size_t ret;
if (fd == -1 || eos)
@throw [OFReadFailedException newWithClass: isa
stream: self
requestedSize: size];
if ((ret = read(fd, buf, size)) == 0)
eos = YES;
return ret;
}
- (size_t)_writeNBytes: (size_t)size
fromBuffer: (const char*)buf
{
size_t ret;
if (fd == -1 || eos || (ret = write(fd, buf, size)) < size)
@throw [OFWriteFailedException newWithClass: isa
stream: self
requestedSize: size];
return ret;
}
- (void)_seekToOffset: (off_t)offset
{
if (lseek(fd, offset, SEEK_SET) == -1)
@throw [OFSeekFailedException newWithClass: isa];
@throw [OFSeekFailedException newWithClass: isa
stream: self];
}
- (off_t)_seekForwardWithOffset: (off_t)offset
{
off_t ret;
if ((ret = lseek(fd, offset, SEEK_CUR)) == -1)
@throw [OFSeekFailedException newWithClass: isa];
@throw [OFSeekFailedException newWithClass: isa
stream: self];
return ret;
}
- (off_t)_seekToOffsetRelativeToEnd: (off_t)offset
{
off_t ret;
if ((ret = lseek(fd, offset, SEEK_END)) == -1)
@throw [OFSeekFailedException newWithClass: isa];
@throw [OFSeekFailedException newWithClass: isa
stream: self];
return ret;
}
- (int)fileDescriptor
{
return fd;
|