1  /*
 2   * Copyright (c) 2015 Apple Inc. All rights reserved.
 3   *
 4   * @APPLE_LICENSE_HEADER_START@
 5   *
 6   * This file contains Original Code and/or Modifications of Original Code
 7   * as defined in and that are subject to the Apple Public Source License
 8   * Version 2.0 (the 'License'). You may not use this file except in
 9   * compliance with the License. Please obtain a copy of the License at
10   * http://www.opensource.apple.com/apsl/ and read it before using this
11   * file.
12   *
13   * The Original Code and all software distributed under the License are
14   * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15   * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16   * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17   * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18   * Please see the License for the specific language governing rights and
19   * limitations under the License.
20   *
21   * @APPLE_LICENSE_HEADER_END@
22   */
23  
24  #if !defined(__COREFOUNDATION_CFSTREAMINTERNAL__)
25  #define __COREFOUNDATION_CFSTREAMINTERNAL__ 1
26  
27  #include <CoreFoundation/CFStreamAbstract.h>
28  #include <CoreFoundation/CFStreamPriv.h>
29  #include <CoreFoundation/CFBase.h>
30  #include <CoreFoundation/CFRuntime.h>
31  
32  CF_EXTERN_C_BEGIN
33  
34  
35  // Older versions of the callbacks; v0 callbacks match v1 callbacks, except that create, finalize, and copyDescription are missing.
36  typedef Boolean (*_CFStreamCBOpenV1)(struct _CFStream *stream, CFStreamError *error, Boolean *openComplete, void *info);
37  typedef Boolean (*_CFStreamCBOpenCompletedV1)(struct _CFStream *stream, CFStreamError *error, void *info);
38  typedef CFIndex (*_CFStreamCBReadV1)(CFReadStreamRef stream, UInt8 *buffer, CFIndex bufferLength, CFStreamError *error, Boolean *atEOF, void *info);
39  typedef const UInt8 *(*_CFStreamCBGetBufferV1)(CFReadStreamRef sream, CFIndex maxBytesToRead, CFIndex *numBytesRead, CFStreamError *error, Boolean *atEOF, void *info);
40  typedef Boolean (*_CFStreamCBCanReadV1)(CFReadStreamRef, void *info);
41  typedef CFIndex (*_CFStreamCBWriteV1)(CFWriteStreamRef, const UInt8 *buffer, CFIndex bufferLength, CFStreamError *error, void *info);
42  typedef Boolean (*_CFStreamCBCanWriteV1)(CFWriteStreamRef, void *info);
43  
44  struct _CFStreamCallBacksV1 {
45      CFIndex version;
46      void *(*create)(struct _CFStream *stream, void *info);
47      void (*finalize)(struct _CFStream *stream, void *info);
48      CFStringRef (*copyDescription)(struct _CFStream *stream, void *info);
49  
50      _CFStreamCBOpenV1 open;
51      _CFStreamCBOpenCompletedV1 openCompleted;
52      _CFStreamCBReadV1 read;
53      _CFStreamCBGetBufferV1 getBuffer;
54      _CFStreamCBCanReadV1 canRead;
55      _CFStreamCBWriteV1 write;
56      _CFStreamCBCanWriteV1 canWrite;
57      void (*close)(struct _CFStream *stream, void *info);
58  
59      CFTypeRef (*copyProperty)(struct _CFStream *stream, CFStringRef propertyName, void *info);
60      Boolean (*setProperty)(struct _CFStream *stream, CFStringRef propertyName, CFTypeRef propertyValue, void *info);
61      void (*requestEvents)(struct _CFStream *stream, CFOptionFlags events, void *info);
62      void (*schedule)(struct _CFStream *stream, CFRunLoopRef runLoop, CFStringRef runLoopMode, void *info);
63      void (*unschedule)(struct _CFStream *stream, CFRunLoopRef runLoop, CFStringRef runLoopMode, void *info);
64  };
65  
66  // These two are defined in CFSocketStream.c because that's where the glue for CFNetwork is.
67  CF_PRIVATE CFErrorRef _CFErrorFromStreamError(CFAllocatorRef alloc, CFStreamError *err);
68  CF_PRIVATE CFStreamError _CFStreamErrorFromError(CFErrorRef error);
69  
70  CF_EXTERN_C_END
71  
72  #endif /* ! __COREFOUNDATION_CFSTREAMINTERNAL__ */
73  
74