/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014
* Jonathan Schleifer <js@webkeks.org>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#define __NO_EXT_QNX
#include "config.h"
#include <string.h>
#include <errno.h>
#import "OFStreamSocket.h"
#import "OFInitializationFailedException.h"
#import "OFNotConnectedException.h"
#import "OFOutOfRangeException.h"
#import "OFReadFailedException.h"
#import "OFSetOptionFailedException.h"
#import "OFWriteFailedException.h"
#import "socket_helpers.h"
@implementation OFStreamSocket
+ (void)initialize
{
if (self != [OFStreamSocket class])
return;
if (!of_init_sockets())
@throw [OFInitializationFailedException
exceptionWithClass: self];
}
+ (instancetype)socket
{
return [[[self alloc] init] autorelease];
}
- (bool)lowlevelIsAtEndOfStream
{
return _atEndOfStream;
}
- (size_t)lowlevelReadIntoBuffer: (void*)buffer
length: (size_t)length
{
ssize_t ret;
if (_socket == INVALID_SOCKET)
@throw [OFNotConnectedException exceptionWithSocket: self];
if (_atEndOfStream) {
OFReadFailedException *e;
e = [OFReadFailedException exceptionWithObject: self
requestedLength: length];
e->_errNo = ENOTCONN;
@throw e;
}
#ifndef _WIN32
if ((ret = recv(_socket, buffer, length, 0)) < 0)
@throw [OFReadFailedException exceptionWithObject: self
requestedLength: length];
#else
if (length > UINT_MAX)
@throw [OFOutOfRangeException exception];
if ((ret = recv(_socket, buffer, (unsigned int)length, 0)) < 0)
@throw [OFReadFailedException exceptionWithObject: self
requestedLength: length];
#endif
if (ret == 0)
_atEndOfStream = true;
return ret;
}
- (void)lowlevelWriteBuffer: (const void*)buffer
length: (size_t)length
{
if (_socket == INVALID_SOCKET)
@throw [OFNotConnectedException exceptionWithSocket: self];
if (_atEndOfStream) {
OFWriteFailedException *e;
e = [OFWriteFailedException exceptionWithObject: self
requestedLength: length];
e->_errNo = ENOTCONN;
@throw e;
}
#ifndef _WIN32
if (send(_socket, buffer, length, 0) < length)
@throw [OFWriteFailedException exceptionWithObject: self
requestedLength: length];
#else
if (length > UINT_MAX)
@throw [OFOutOfRangeException exception];
if (send(_socket, buffer, (unsigned int)length, 0) < length)
@throw [OFWriteFailedException exceptionWithObject: self
requestedLength: length];
#endif
}
#ifdef _WIN32
- (void)setBlocking: (bool)enable
{
u_long v = enable;
_blocking = enable;
if (ioctlsocket(_socket, FIONBIO, &v) == SOCKET_ERROR)
@throw [OFSetOptionFailedException exceptionWithStream: self];
}
#endif
- (int)fileDescriptorForReading
{
#ifndef _WIN32
return _socket;
#else
if (_socket > INT_MAX)
@throw [OFOutOfRangeException exception];
return (int)_socket;
#endif
}
- (int)fileDescriptorForWriting
{
#ifndef _WIN32
return _socket;
#else
if (_socket > INT_MAX)
@throw [OFOutOfRangeException exception];
return (int)_socket;
#endif
}
- (void)close
{
if (_socket == INVALID_SOCKET)
@throw [OFNotConnectedException exceptionWithSocket: self];
close(_socket);
_socket = INVALID_SOCKET;
_atEndOfStream = false;
}
- (void)dealloc
{
if (_socket != INVALID_SOCKET)
[self close];
[super dealloc];
}
@end