1/*
2 * Copyright (C) 2010 Apple Inc. All rights reserved.
3 * Copyright (C) 2017 Sony Interactive Entertainment Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
16 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
18 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
19 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
20 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
22 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
23 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
24 * THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#pragma once
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 USE(GLIB)
37typedef struct _GModule GModule;
38#endif
39
40#if OS(WINDOWS)
41#include <windows.h>
42#endif
43
44namespace WebKit {
45
46class Module {
47 WTF_MAKE_NONCOPYABLE(Module);
48public:
49 Module(const String& path);
50 ~Module();
51
52 bool load();
53 // Note: On Mac this leaks the CFBundle to avoid crashes when a bundle is unloaded and there are
54 // live Objective-C objects whose methods come from that bundle.
55 void unload();
56
57#if USE(CF)
58 String bundleIdentifier() const;
59#endif
60
61 template<typename FunctionType> FunctionType functionPointer(const char* functionName) const;
62
63private:
64 void* platformFunctionPointer(const char* functionName) const;
65
66 String m_path;
67#if OS(WINDOWS)
68 HMODULE m_module;
69#endif
70#if USE(CF)
71 RetainPtr<CFBundleRef> m_bundle;
72#elif USE(GLIB)
73 GModule* m_handle;
74#endif
75};
76
77template<typename FunctionType> FunctionType Module::functionPointer(const char* functionName) const
78{
79 return reinterpret_cast<FunctionType>(platformFunctionPointer(functionName));
80}
81
82}
83