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 Module_h
27#define Module_h
28
29#include <wtf/Noncopyable.h>
30#include <wtf/text/WTFString.h>
31
32#if USE(CF)
33#include <wtf/RetainPtr.h>
34#endif
35
36#if PLATFORM(GTK)
37typedef struct _GModule GModule;
38#endif
39
40#if PLATFORM(EFL)
41#include <Eina.h>
42#include <wtf/efl/UniquePtrEfl.h>
43#endif
44
45namespace WebKit {
46
47class Module {
48    WTF_MAKE_NONCOPYABLE(Module);
49public:
50    Module(const String& path);
51    ~Module();
52
53    bool load();
54    // Note: On Mac this leaks the CFBundle to avoid crashes when a bundle is unloaded and there are
55    // live Objective-C objects whose methods come from that bundle.
56    void unload();
57
58#if USE(CF)
59    String bundleIdentifier() const;
60#endif
61
62    template<typename FunctionType> FunctionType functionPointer(const char* functionName) const;
63
64#if USE(CF) && !defined(__LP64__)
65    CFBundleRefNum bundleResourceMap();
66#endif
67
68private:
69    void* platformFunctionPointer(const char* functionName) const;
70
71    String m_path;
72#if USE(CF)
73    RetainPtr<CFBundleRef> m_bundle;
74#if !defined(__LP64__)
75    CFBundleRefNum m_bundleResourceMap;
76#endif
77#elif PLATFORM(GTK)
78    GModule* m_handle;
79#elif PLATFORM(EFL)
80    EflUniquePtr<Eina_Module> m_module;
81#endif
82};
83
84template<typename FunctionType> FunctionType Module::functionPointer(const char* functionName) const
85{
86    return reinterpret_cast<FunctionType>(platformFunctionPointer(functionName));
87}
88
89}
90
91#endif
92