ObjFW  Diff

Differences From Artifact [2daf8ca68b]:

To Artifact [298e596b16]:

  • File src/OFStream.m — part of check-in [62e2de30b9] at 2015-02-16 08:39:17 on branch trunk — Explicitly pass errno to exceptions

    The old behaviour where the exception would access errno directly on
    creation of the exception was very fragile. The two main problems with
    it were that sometimes it would pick up an errno even though none had
    been set and in other cases that when the exception was created errno
    had already been overridden.

    This also greatly increases errno handling on Win32, especially in
    conjunction with sockets. It can still be improved further, though. (user: js, size: 30737) [annotate] [blame] [check-ins using]


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 * file.
 */

#define __NO_EXT_QNX

#include "config.h"



#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <assert.h>

#include <fcntl.h>

#ifndef _WIN32
# include <signal.h>
#endif

#import "OFStream.h"







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 * file.
 */

#define __NO_EXT_QNX

#include "config.h"

#include <assert.h>
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>



#include <fcntl.h>

#ifndef _WIN32
# include <signal.h>
#endif

#import "OFStream.h"
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		readFlags = fcntl([self fileDescriptorForReading], F_GETFL);

		readImplemented = true;

		if (readFlags == -1)
			@throw [OFSetOptionFailedException
			    exceptionWithStream: self];


		if (enable)
			readFlags &= ~O_NONBLOCK;
		else
			readFlags |= O_NONBLOCK;

		if (fcntl([self fileDescriptorForReading], F_SETFL,
		    readFlags) == -1)
			@throw [OFSetOptionFailedException
			    exceptionWithStream: self];

	} @catch (OFNotImplementedException *e) {
	}

	@try {
		int writeFlags;

		writeFlags = fcntl([self fileDescriptorForWriting], F_GETFL);

		writeImplemented = true;

		if (writeFlags == -1)
			@throw [OFSetOptionFailedException
			    exceptionWithStream: self];


		if (enable)
			writeFlags &= ~O_NONBLOCK;
		else
			writeFlags |= O_NONBLOCK;

		if (fcntl([self fileDescriptorForWriting], F_SETFL,
		    writeFlags) == -1)
			@throw [OFSetOptionFailedException
			    exceptionWithStream: self];

	} @catch (OFNotImplementedException *e) {
	}

	if (!readImplemented && !writeImplemented)
		@throw [OFNotImplementedException exceptionWithSelector: _cmd
								 object: self];








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		readFlags = fcntl([self fileDescriptorForReading], F_GETFL);

		readImplemented = true;

		if (readFlags == -1)
			@throw [OFSetOptionFailedException
			    exceptionWithStream: self
					  errNo: errno];

		if (enable)
			readFlags &= ~O_NONBLOCK;
		else
			readFlags |= O_NONBLOCK;

		if (fcntl([self fileDescriptorForReading], F_SETFL,
		    readFlags) == -1)
			@throw [OFSetOptionFailedException
			    exceptionWithStream: self
					  errNo: errno];
	} @catch (OFNotImplementedException *e) {
	}

	@try {
		int writeFlags;

		writeFlags = fcntl([self fileDescriptorForWriting], F_GETFL);

		writeImplemented = true;

		if (writeFlags == -1)
			@throw [OFSetOptionFailedException
			    exceptionWithStream: self
					  errNo: errno];

		if (enable)
			writeFlags &= ~O_NONBLOCK;
		else
			writeFlags |= O_NONBLOCK;

		if (fcntl([self fileDescriptorForWriting], F_SETFL,
		    writeFlags) == -1)
			@throw [OFSetOptionFailedException
			    exceptionWithStream: self
					  errNo: errno];
	} @catch (OFNotImplementedException *e) {
	}

	if (!readImplemented && !writeImplemented)
		@throw [OFNotImplementedException exceptionWithSelector: _cmd
								 object: self];