Initial revision

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gsweb/trunk@5815 72102866-910b-0410-8b05-ffd578937521
2025-05-30 16:50:52 +00:00 · 2000-01-22 12:49:49 +00:00 · 2000-01-22 12:49:49 +00:00 · 0b7966e1ec
commit 0b7966e1ec
376 changed files with 69720 additions and 0 deletions
--- a/GSWeb.framework/NSNonBlockingFileHandle.m
+++ b/GSWeb.framework/NSNonBlockingFileHandle.m
@ -0,0 +1,109 @@
+/* NSNonBlockingFileHandle.m - NSNonBlockingFileHandle
+   Copyright (C) 1999 Free Software Foundation, Inc.
+   
+   Written by:	Manuel Guesdon <mguesdon@sbuilders.com>
+   Date: 		Jan 1999
+   
+   This file is part of the GNUstep Web 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <time.h>
+#include <sys/time.h>
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <signal.h>
+
+#include <sys/file.h>
+#include <sys/stat.h>
+#include <sys/fcntl.h>
+#include <sys/ioctl.h>
+#include <netdb.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#ifdef SOLARIS
+#include <sys/filio.h>
+#include <limits.h>
+#endif
+#include <Foundation/Foundation.h>
+#include "NSNonBlockingFileHandle.h"
+#include <gsweb/GSWeb.framework/GSWeb.h>
+#include "GSWUtils.h"
+
+@implementation NSFileHandle (CFRNonBlockingIO)
+
+
+//Returns an NSData object containing all of the currently available data. 
+// Does not block if there is no data; returns nil instead.
+-(NSData*)availableDataNonBlocking
+{
+  NSData* _data=nil;
+  LOGObjectFnStart();
+  _data=[self readDataOfLengthNonBlocking: UINT_MAX];
+  LOGObjectFnStop();
+  return _data;
+};
+
+// Returns an NSData object containing all of the currently available data. 
+//  Does not block if there is no data; returns nil instead. 
+//  Cover for #{-availableDataNonBlocking}.
+-(NSData*)readDataToEndOfFileNonBlocking
+{
+  NSData* _data=nil;
+  LOGObjectFnStart();
+  _data=[self readDataOfLengthNonBlocking: UINT_MAX];
+  LOGObjectFnStop();
+  return _data;
+};
+
+-(unsigned int)_availableByteCountNonBlocking
+{
+  int numBytes;
+  int fd = 0;
+  LOGObjectFnStart();
+  fd=[self fileDescriptor];
+
+  if(ioctl(fd, FIONREAD, (char *) &numBytes) == -1)
+	{
+	  LOGException0(@"NSFileHandleOperationException ioctl() Err");
+	  [NSException raise: NSFileHandleOperationException
+				   format: @"ioctl() Err # %d", (int)errno];
+	};
+  LOGObjectFnStop();
+  return numBytes;
+};
+
+// Reads up to length bytes of data from the file handle. 
+// If no data is available, returns nil. Does not block.
+-(NSData*)readDataOfLengthNonBlocking:(unsigned int)length
+{
+  NSData* _data=nil;
+  unsigned int readLength;
+  LOGObjectFnStart();
+
+  readLength = [self _availableByteCountNonBlocking];
+  readLength = (readLength < length) ? readLength : length;
+  
+  if (readLength>0)
+	_data=[self readDataOfLength: readLength];
+  LOGObjectFnStop();
+  return _data;
+}
+
+@end