1/*
2 * Copyright (C) 2010 Apple 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 INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef NPRuntimeUtilities_h
27#define NPRuntimeUtilities_h
28
29#if ENABLE(NETSCAPE_PLUGIN_API)
30
31#include <WebCore/npruntime_internal.h>
32#include <wtf/Forward.h>
33
34struct NPClass;
35struct NPObject;
36
37namespace WebKit {
38
39void* npnMemAlloc(uint32_t);
40void npnMemFree(void*);
41
42template<typename T> T* npnMemNew()
43{
44 return static_cast<T*>(npnMemAlloc(sizeof(T)));
45}
46
47template<typename T> T* npnMemNewArray(size_t count)
48{
49 return static_cast<T*>(npnMemAlloc(sizeof(T) * count));
50}
51
52NPString createNPString(const CString&);
53
54NPObject* createNPObject(NPP, NPClass*);
55void deallocateNPObject(NPObject*);
56
57void retainNPObject(NPObject*);
58void releaseNPObject(NPObject*);
59
60// This function decrements the refcount of the specified object. If the
61// refcount reaches 0 it will attempt to destroy the object. If the object has
62// a custom deallocate function it will fail and return false, so it will be
63// up to the caller to call deallocateNPObject.
64// This function is used to implement the delayed finalization of NPObjects
65// released during GC.
66bool trySafeReleaseNPObject(NPObject*);
67
68void releaseNPVariantValue(NPVariant*);
69
70}
71
72#endif // ENABLE(NETSCAPE_PLUGIN_API)
73
74#endif // NPRuntimeUtilities_h
75