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#ifndef BUILDING_ON_TIGER
54    WebCoreObjCFinalizeOnMainThread(self);
55#endif
56}
57
58- (void)dealloc
59{
60    if (WebCoreObjCScheduleDeallocateOnMainThread([WebCoreSharedBufferData class], self))
61        return;
62
63    [super dealloc];
64}
65
66- (void)finalize
67{
68    [super finalize];
69}
70
71- (id)initWithSharedBuffer:(SharedBuffer*)buffer
72{
73    self = [super init];
74
75    if (self)
76        sharedBuffer = buffer;
77
78    return self;
79}
80
81- (NSUInteger)length
82{
83    return sharedBuffer->size();
84}
85
86- (const void *)bytes
87{
88    return reinterpret_cast<const void*>(sharedBuffer->data());
89}
90
91@end
92
93namespace WebCore {
94
95PassRefPtr<SharedBuffer> SharedBuffer::wrapNSData(NSData *nsData)
96{
97    return adoptRef(new SharedBuffer((CFDataRef)nsData));
98}
99
100NSData *SharedBuffer::createNSData()
101{
102    return [[WebCoreSharedBufferData alloc] initWithSharedBuffer:this];
103}
104
105CFDataRef SharedBuffer::createCFData()
106{
107    if (m_cfData) {
108        CFRetain(m_cfData.get());
109        return m_cfData.get();
110    }
111
112    return (CFDataRef)RetainPtr<WebCoreSharedBufferData>(AdoptNS, [[WebCoreSharedBufferData alloc] initWithSharedBuffer:this]).releaseRef();
113}
114
115PassRefPtr<SharedBuffer> SharedBuffer::createWithContentsOfFile(const String& filePath)
116{
117    NSData *resourceData = [NSData dataWithContentsOfFile:filePath];
118    if (resourceData)
119        return SharedBuffer::wrapNSData(resourceData);
120    return 0;
121}
122
123}
124
125