70eca270a68f9da81ac4e1c4c4d41bb05a96c12d
[WebKit-https.git] / Source / 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 "SharedBuffer.h"
28
29 #include "WebCoreObjCExtras.h"
30 #include <runtime/InitializeThreading.h>
31 #include <string.h>
32 #include <wtf/PassRefPtr.h>
33
34
35 using namespace WebCore;
36
37 @interface WebCoreSharedBufferData : NSData
38 {
39     RefPtr<SharedBuffer> sharedBuffer;
40 }
41
42 - (id)initWithSharedBuffer:(SharedBuffer*)buffer;
43 @end
44
45 @implementation WebCoreSharedBufferData
46
47 + (void)initialize
48 {
49     JSC::initializeThreading();
50     WTF::initializeMainThreadToProcessMainThread();
51     WebCoreObjCFinalizeOnMainThread(self);
52 }
53
54 - (void)dealloc
55 {
56     if (WebCoreObjCScheduleDeallocateOnMainThread([WebCoreSharedBufferData class], self))
57         return;
58     
59     [super dealloc];
60 }
61
62 - (void)finalize
63 {
64     [super finalize];
65 }
66
67 - (id)initWithSharedBuffer:(SharedBuffer*)buffer
68 {
69     self = [super init];
70     
71     if (self)
72         sharedBuffer = buffer;
73     
74     return self;
75 }
76
77 - (NSUInteger)length
78 {
79     return sharedBuffer->size();
80 }
81
82 - (const void *)bytes
83 {
84     return reinterpret_cast<const void*>(sharedBuffer->data());
85 }
86
87 @end
88
89 namespace WebCore {
90
91 PassRefPtr<SharedBuffer> SharedBuffer::wrapNSData(NSData *nsData)
92 {
93     return adoptRef(new SharedBuffer((CFDataRef)nsData));
94 }
95
96 NSData *SharedBuffer::createNSData()
97 {    
98     return [[WebCoreSharedBufferData alloc] initWithSharedBuffer:this];
99 }
100
101 CFDataRef SharedBuffer::createCFData()
102 {
103     if (m_cfData) {
104         CFRetain(m_cfData.get());
105         return m_cfData.get();
106     }
107     
108     return (CFDataRef)RetainPtr<WebCoreSharedBufferData>(AdoptNS, [[WebCoreSharedBufferData alloc] initWithSharedBuffer:this]).releaseRef();
109 }
110
111 PassRefPtr<SharedBuffer> SharedBuffer::createWithContentsOfFile(const String& filePath)
112 {
113     NSData *resourceData = [NSData dataWithContentsOfFile:filePath];
114     if (resourceData) 
115         return SharedBuffer::wrapNSData(resourceData);
116     return 0;
117 }
118
119 }
120