ObjFW  Artifact [0fb850ba21]

Artifact 0fb850ba21329ebdc1657740ce63fc63f08f0879239ee9e70e9bcf50b2f2f865:

• File src/OFStdIOStream.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: 3048) [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"

#include <stdlib.h>
#include <unistd.h>

#import "OFStdIOStream.h"
#import "OFDate.h"
#import "OFApplication.h"

#import "OFReadFailedException.h"
#import "OFWriteFailedException.h"

#import "autorelease.h"

OFStdIOStream *of_stdin = nil;
OFStdIOStream *of_stdout = nil;
OFStdIOStream *of_stderr = nil;

void
of_log(OFConstantString *format, ...)
{
	void *pool = objc_autoreleasePoolPush();
	OFDate *date;
	OFString *dateString, *me, *msg;
	va_list arguments;

	date = [OFDate date];
	dateString = [date localDateStringWithFormat: @"%Y-%m-%d %H:%M:%S"];
	me = [[OFApplication programName] lastPathComponent];

	va_start(arguments, format);
	msg = [[[OFString alloc] initWithFormat: format
				      arguments: arguments] autorelease];
	va_end(arguments);

	[of_stderr writeFormat: @"[%@.%03d %@(%d)] %@\n", dateString,
				[date microsecond] / 1000, me, getpid(), msg];

	objc_autoreleasePoolPop(pool);
}

@implementation OFStdIOStream
+ (void)load
{
	of_stdin = [[OFStdIOStream alloc] OF_initWithFileDescriptor: 0];
	of_stdout = [[OFStdIOStream alloc] OF_initWithFileDescriptor: 1];
	of_stderr = [[OFStdIOStream alloc] OF_initWithFileDescriptor: 2];
}

- init
{
	@try {
		[self doesNotRecognizeSelector: _cmd];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	abort();
}

- OF_initWithFileDescriptor: (int)fd
{
	self = [super init];

	_fd = fd;

	return self;
}

- (bool)lowlevelIsAtEndOfStream
{
	if (_fd == -1)
		return true;

	return _atEndOfStream;
}

- (size_t)lowlevelReadIntoBuffer: (void*)buffer
			  length: (size_t)length
{
	ssize_t ret;

	if (_fd == -1 || _atEndOfStream ||
	    (ret = read(_fd, buffer, length)) < 0)
		@throw [OFReadFailedException exceptionWithStream: self
						  requestedLength: length];

	if (ret == 0)
		_atEndOfStream = true;

	return ret;
}

- (void)lowlevelWriteBuffer: (const void*)buffer
		     length: (size_t)length
{
	if (_fd == -1 || _atEndOfStream || write(_fd, buffer, length) < length)
		@throw [OFWriteFailedException exceptionWithStream: self
						   requestedLength: length];
}

- (int)fileDescriptorForReading
{
	return _fd;
}

- (int)fileDescriptorForWriting
{
	return _fd;
}

- (void)close
{
	if (_fd != -1)
		close(_fd);

	_fd = -1;
}

- autorelease
{
	return self;
}

- retain
{
	return self;
}

- (void)release
{
}

- (unsigned int)retainCount
{
	return OF_RETAIN_COUNT_MAX;
}

- (void)dealloc
{
	[self doesNotRecognizeSelector: _cmd];
	abort();

	/* Get rid of stupid warning */
	[super dealloc];
}
@end