Artifact 252939c90aea2b2fe2b3a8dc9c3bcdf61d2a50ca4b28cb5d0658b98fc1908acc:
- File
src/OFStreamSocket.m
— part of check-in
[3d16a30f41]
at
2013-06-22 12:12:36
on branch trunk
— Rework exceptions.
This mostly removes the argument for the class in which the exception
occurred. As backtraces were recently added for all platforms, the
passed class does not give any extra information on where the exception
occurred anymore.This also removes a few other arguments which were not too helpful. In
the past, the idea was to pass as many arguments as possible so that it
is easier to find the origin of the exception. However, as backtraces
are a much better way to find the origin, those are not useful anymore
and just make the exception more cumbersome to use. The rule is now to
only pass arguments that might help in recovering from the exception or
provide information that is otherwise not easily accessible. (user: js, size: 3629) [annotate] [blame] [check-ins using]
/* * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 * 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. */ #include "config.h" #define __NO_EXT_QNX #include <string.h> #include <unistd.h> #include <errno.h> #include <sys/types.h> #ifdef OF_HAVE_SYS_SOCKET_H # include <sys/socket.h> #endif #import "OFStreamSocket.h" #import "OFInitializationFailedException.h" #import "OFNotConnectedException.h" #import "OFReadFailedException.h" #import "OFSetOptionFailedException.h" #import "OFWriteFailedException.h" #ifdef __wii__ # define BOOL OGC_BOOL # include <network.h> # undef BOOL # define recv(sock, buf, len, flags) net_recv(sock, buf, len, flags) # define send(sock, buf, len, flags) net_send(sock, buf, len, flags) #endif #ifndef INVALID_SOCKET # define INVALID_SOCKET -1 #endif #ifdef _WIN32 # define close(sock) closesocket(sock) #endif @implementation OFStreamSocket + (void)initialize { #ifdef _WIN32 WSADATA wsa; #endif if (self != [OFStreamSocket class]) return; #if defined(_WIN32) if (WSAStartup(MAKEWORD(2, 0), &wsa)) @throw [OFInitializationFailedException exceptionWithClass: self]; #elif defined(__wii__) if (net_init() < 0) @throw [OFInitializationFailedException exceptionWithClass: self]; #endif } + (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 exceptionWithStream: self requestedLength: length]; #ifndef _WIN32 e->_errNo = ENOTCONN; #else e->_errNo = WSAENOTCONN; #endif @throw e; } if ((ret = recv(_socket, buffer, length, 0)) < 0) @throw [OFReadFailedException exceptionWithStream: self requestedLength: length]; 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 exceptionWithStream: self requestedLength: length]; #ifndef _WIN32 e->_errNo = ENOTCONN; #else e->_errNo = WSAENOTCONN; #endif @throw e; } if (send(_socket, buffer, length, 0) < length) @throw [OFWriteFailedException exceptionWithStream: self requestedLength: length]; } #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 { return _socket; } - (int)fileDescriptorForWriting { return _socket; } - (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