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#ifdef BUILDING_ON_TIGER
35typedef unsigned NSUInteger;
36#endif
37
38using namespace WebCore;
39
40@interface WebCoreSharedBufferData : NSData
41{
42    RefPtr<SharedBuffer> sharedBuffer;
43}
44
45- (id)initWithSharedBuffer:(SharedBuffer*)buffer;
46@end
47
48@implementation WebCoreSharedBufferData
49
50+ (void)initialize
51{
52    JSC::initializeThreading();
53    WTF::initializeMainThreadToProcessMainThread();
54#ifndef BUILDING_ON_TIGER
55    WebCoreObjCFinalizeOnMainThread(self);
56#endif
57}
58
59- (void)dealloc
60{
61    if (WebCoreObjCScheduleDeallocateOnMainThread([WebCoreSharedBufferData class], self))
62        return;
63
64    [super dealloc];
65}
66
67- (void)finalize
68{
69    [super finalize];
70}
71
72- (id)initWithSharedBuffer:(SharedBuffer*)buffer
73{
74    self = [super init];
75
76    if (self)
77        sharedBuffer = buffer;
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
94namespace WebCore {
95
96PassRefPtr<SharedBuffer> SharedBuffer::wrapNSData(NSData *nsData)
97{
98    return adoptRef(new SharedBuffer((CFDataRef)nsData));
99}
100
101NSData *SharedBuffer::createNSData()
102{
103    return [[WebCoreSharedBufferData alloc] initWithSharedBuffer:this];
104}
105
106CFDataRef SharedBuffer::createCFData()
107{
108    if (m_cfData) {
109        CFRetain(m_cfData.get());
110        return m_cfData.get();
111    }
112
113    return (CFDataRef)RetainPtr<WebCoreSharedBufferData>(AdoptNS, [[WebCoreSharedBufferData alloc] initWithSharedBuffer:this]).releaseRef();
114}
115
116PassRefPtr<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
126