libs-base/Source/NSPipe.m
richard 9aae8e5520 GC improvement and tidyup
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@7519 72102866-910b-0410-8b05-ffd578937521
2000-09-15 10:17:42 +00:00

83 lines
2 KiB
Objective-C

/* Implementation for NSPipe for GNUStep
Copyright (C) 1997 Free Software Foundation, Inc.
Written by: Richard Frith-Macdonald <richard@brainstorm.co.uk>
Date: 1997
This file is part of the GNUstep Base Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA.
*/
#include <config.h>
#include <base/preface.h>
#include <Foundation/NSObject.h>
#include <Foundation/NSFileHandle.h>
#include <unistd.h>
@implementation NSPipe
// Allocating and Initializing a FileHandle Object
+ (id) pipe
{
return AUTORELEASE([[self alloc] init]);
}
- (void) dealloc
{
RELEASE(readHandle);
RELEASE(writeHandle);
[super dealloc];
}
- (id) init
{
self = [super init];
if (self != nil)
{
#ifndef __MINGW__
int p[2];
if (pipe(p) == 0)
{
readHandle = [[NSFileHandle alloc] initWithFileDescriptor:p[0]];
writeHandle = [[NSFileHandle alloc] initWithFileDescriptor:p[1]];
}
#else
HANDLE readh, writeh;
if (CreatePipe(&readh, &writeh, NULL, 0) != 0)
{
readHandle = [[NSFileHandle alloc] initWithNativeHandle: readh];
writeHandle = [[NSFileHandle alloc] initWithNativeHandle: writeh];
}
#endif
}
return self;
}
- (id) fileHandleForReading
{
return readHandle;
}
- (id) fileHandleForWriting
{
return writeHandle;
}
@end