Home | History | Annotate | Download | only in mac 
      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
     35 typedef unsigned NSUInteger;
     36 #endif
     37 
     38 using 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 
     93 namespace WebCore {
     94 
     95 PassRefPtr<SharedBuffer> SharedBuffer::wrapNSData(NSData *nsData)
     96 {
     97     return adoptRef(new SharedBuffer((CFDataRef)nsData));
     98 }
     99 
    100 NSData *SharedBuffer::createNSData()
    101 {
    102     return [[WebCoreSharedBufferData alloc] initWithSharedBuffer:this];
    103 }
    104 
    105 CFDataRef 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 
    115 PassRefPtr<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