err.no Git - sope/blob - libFoundation/Foundation/NSFileHandle.m

   1 /*
   2    NSFileHandle.m
   3
   4    Copyright (C) 1995, 1996, 1997 Ovidiu Predescu and Mircea Oancea.
   5    All rights reserved.
   6
   7    Author: Ovidiu Predescu <ovidiu@net-community.com>
   8    Date: May 1997
   9
  10    This file is part of libFoundation.
  11
  12    Permission to use, copy, modify, and distribute this software and its
  13    documentation for any purpose and without fee is hereby granted, provided
  14    that the above copyright notice appear in all copies and that both that
  15    copyright notice and this permission notice appear in supporting
  16    documentation.
  17
  18    We disclaim all warranties with regard to this software, including all
  19    implied warranties of merchantability and fitness, in no event shall
  20    we be liable for any special, indirect or consequential damages or any
  21    damages whatsoever resulting from loss of use, data or profits, whether in
  22    an action of contract, negligence or other tortious action, arising out of
  23    or in connection with the use or performance of this software.
  24 */
  25
  26 #include <Foundation/common.h>
  27
  28 #if HAVE_SYS_STAT_H
  29 # include <sys/stat.h>
  30 #endif
  31
  32 #include <fcntl.h>
  33 #include <sys/types.h>
  34
  35 #include <Foundation/NSFileHandle.h>
  36 #include "NSConcreteFileHandle.h"
  37
  38 @implementation NSFileHandle
  39
  40 static NSFileHandle *nullDevice = nil;
  41
  42 + (void)initialize
  43 {
  44 #ifdef WIN32
  45     static WSADATA wsaData;
  46     WSAStartup(MAKEWORD(1, 1), &wsaData);
  47 #endif
  48 }
  49
  50 + (id)allocWithZone:(NSZone*)zone
  51 {
  52     return (self == [NSFileHandle class])
  53         ? [NSConcreteFileHandle allocWithZone:zone]
  54         : NSAllocateObject(self, 0, zone);
  55 }
  56
  57 + (id)fileHandleForReadingAtPath:(NSString*)path
  58 {
  59     return [NSConcreteFileHandle fileHandleForReadingAtPath:path];
  60 }
  61 + (id)fileHandleForWritingAtPath:(NSString*)path
  62 {
  63     return [NSConcreteFileHandle fileHandleForWritingAtPath:path];
  64 }
  65 + (id)fileHandleForUpdatingAtPath:(NSString*)path
  66 {
  67     return [NSConcreteFileHandle fileHandleForUpdatingAtPath:path];
  68 }
  69
  70 #ifdef __MINGW32__
  71
  72 + (id)fileHandleWithStandardInput
  73 {
  74     return AUTORELEASE([[self alloc] initWithNativeHandle:
  75                                          GetStdHandle(STD_INPUT_HANDLE)]);
  76 }
  77 + (id)fileHandleWithStandardOutput
  78 {
  79     return AUTORELEASE([[self alloc] initWithNativeHandle:
  80                                          GetStdHandle(STD_OUTPUT_HANDLE)]);
  81 }
  82 + (id)fileHandleWithStandardError
  83 {
  84     return AUTORELEASE([[self alloc] initWithNativeHandle:
  85                                          GetStdHandle(STD_ERROR_HANDLE)]);
  86 }
  87
  88 #else /* !__MINGW32__ */
  89
  90 + (id)fileHandleWithStandardInput
  91 {
  92     return AUTORELEASE([[self alloc] initWithFileDescriptor:0]);
  93 }
  94
  95 + (id)fileHandleWithStandardOutput
  96 {
  97     return AUTORELEASE([[self alloc] initWithFileDescriptor:1]);
  98 }
  99
 100 + (id)fileHandleWithStandardError
 101 {
 102     return AUTORELEASE([[self alloc] initWithFileDescriptor:2]);
 103 }
 104
 105 #endif /* !__MINGW32__ */
 106
 107 + (id)fileHandleWithNullDevice
 108 {
 109     if (!nullDevice)
 110         nullDevice = [NSNullDeviceFileHandle new];
 111
 112     return nullDevice;
 113 }
 114
 115 @end /* NSFileHandle */
 116
 117
 118 LF_DECLARE NSString *NSFileHandleConnectionAcceptedNotification
 119     = @"NSFileHandleConnectionAcceptedNotification";
 120
 121 LF_DECLARE NSString *NSFileHandleReadCompletionNotification
 122     = @"NSFileHandleReadCompletionNotification";
 123
 124 LF_DECLARE NSString *NSFileHandleReadToEndOfFileCompletionNotification
 125     = @"NSFileHandleReadToEndOfFileCompletionNotification";
 126
 127 LF_DECLARE NSString *NSFileHandleNotificationFileHandleItem
 128     = @"NSFileHandleNotificationFileHandleItem";
 129
 130 LF_DECLARE NSString *NSFileHandleNotificationDataItem
 131     = @"NSFileHandleNotificationDataItem";
 132
 133 NSString* NSFileHandleNotificationMonitorModes
 134     = @"NSFileHandleNotificationMonitorModes";
 135
 136 /*
 137   Local Variables:
 138   c-basic-offset: 4
 139   tab-width: 8
 140   End:
 141 */