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