1/*
2 * Copyright 2009, The Android Open Source Project
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 *  * Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 *  * 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 THE COPYRIGHT HOLDERS ``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 THE COPYRIGHT OWNER 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 "JavaSharedClient.h"
28#include "SharedBuffer.h"
29#include "SharedBufferStream.h"
30
31using namespace android;
32
33namespace WebCore {
34
35    static void CallDeref(void* buffer) {
36        ((SharedBuffer*)buffer)->deref();
37    }
38
39    SharedBufferStream::SharedBufferStream(SharedBuffer* buffer)
40            : SkMemoryStream(buffer->data(), buffer->size(), false) {
41        fBuffer = buffer;
42        buffer->ref();
43    }
44
45    SharedBufferStream::~SharedBufferStream() {
46        // we can't necessarily call fBuffer->deref() here, as we may be
47        // in a different thread from webkit, and SharedBuffer is not
48        // threadsafe. Therefore we defer it until it can be executed in the
49        // webkit thread.
50        JavaSharedClient::EnqueueFunctionPtr(CallDeref, fBuffer);
51    }
52
53}
54