2008-03-19 Brady Eidson <beidson@apple.com>
[WebKit-https.git] / WebCore / platform / mac / SharedBufferMac.mm
1 /*
2  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
24  */
25
26 #include "config.h"
27 #include "FoundationExtras.h"
28 #include "SharedBuffer.h"
29 #include "WebCoreObjCExtras.h"
30 #include <string.h>
31 #include <wtf/PassRefPtr.h>
32
33 #ifdef BUILDING_ON_TIGER
34 typedef unsigned NSUInteger;
35 #endif
36
37 using namespace WebCore;
38
39 @interface WebCoreSharedBufferData : NSData
40 {
41     SharedBuffer* sharedBuffer;
42 }
43
44 - (id)initWithSharedBuffer:(SharedBuffer*)buffer;
45 @end
46
47 @implementation WebCoreSharedBufferData
48
49 #ifndef BUILDING_ON_TIGER
50 + (void)initialize
51 {
52     WebCoreObjCFinalizeOnMainThread(self);
53 }
54 #endif
55
56 - (void)dealloc
57 {
58     sharedBuffer->deref();
59     
60     [super dealloc];
61 }
62
63 - (void)finalize
64 {
65     sharedBuffer->deref();
66     
67     [super finalize];
68 }
69
70 - (id)initWithSharedBuffer:(SharedBuffer*)buffer
71 {
72     self = [super init];
73     
74     if (self) {
75         sharedBuffer = buffer;
76         sharedBuffer->ref();
77     }
78     
79     return self;
80 }
81
82 - (NSUInteger)length
83 {
84     return sharedBuffer->size();
85 }
86
87 - (const void *)bytes
88 {
89     return reinterpret_cast<const void*>(sharedBuffer->data());
90 }
91
92 @end
93
94 namespace WebCore {
95
96 PassRefPtr<SharedBuffer> SharedBuffer::wrapNSData(NSData *nsData)
97 {
98     return adoptRef(new SharedBuffer((CFDataRef)nsData));
99 }
100
101 NSData *SharedBuffer::createNSData()
102 {    
103     return [[WebCoreSharedBufferData alloc] initWithSharedBuffer:this];
104 }
105
106 CFDataRef SharedBuffer::createCFData()
107 {
108     if (m_cfData) {
109         CFRetain(m_cfData.get());
110         return m_cfData.get();
111     }
112     
113     return (CFDataRef)HardRetainWithNSRelease([[WebCoreSharedBufferData alloc] initWithSharedBuffer:this]);
114 }
115
116 PassRefPtr<SharedBuffer> SharedBuffer::createWithContentsOfFile(const String& filePath)
117 {
118     NSData *resourceData = [NSData dataWithContentsOfFile:filePath];
119     if (resourceData) 
120         return SharedBuffer::wrapNSData(resourceData);
121     return 0;
122 }
123
124 }
125