Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4 (http://svn.webkit.org/repository/webkit/trunk@104285)

1 files changed, 92 insertions, 0 deletions

diff --git a/Source/WebKit2/Platform/Module.h b/Source/WebKit2/Platform/Module.h
new file mode 100644
index 000000000..736718a8b
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+++ b/Source/WebKit2/Platform/Module.h
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+/*
+ * Copyright (C) 2010 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef Module_h
+#define Module_h
+
+#include <wtf/Noncopyable.h>
+#include <wtf/text/WTFString.h>
+
+#if PLATFORM(MAC)
+#include <wtf/RetainPtr.h>
+#endif
+
+#if PLATFORM(QT)
+#include <QLibrary>
+#endif
+
+#if PLATFORM(GTK)
+typedef struct _GModule GModule;
+#endif
+
+namespace WebKit {
+
+class Module {
+    WTF_MAKE_NONCOPYABLE(Module);
+public:
+    Module(const String& path);
+    ~Module();
+
+    bool load();
+    // Note: On Mac this leaks the CFBundle to avoid crashes when a bundle is unloaded and there are
+    // live Objective-C objects whose methods come from that bundle.
+    void unload();
+
+    template<typename FunctionType> FunctionType functionPointer(const char* functionName) const;
+
+#if PLATFORM(MAC) && !defined(__LP64__)
+    CFBundleRefNum bundleResourceMap();
+#endif
+
+#if PLATFORM(WIN)
+    void installIATHook(const char* importDLLName, const char* importFunctionName, const void* hookFunction);
+#endif
+
+private:
+    void* platformFunctionPointer(const char* functionName) const;
+
+    String m_path;
+#if PLATFORM(MAC)
+    RetainPtr<CFBundleRef> m_bundle;
+#if !defined(__LP64__)
+    CFBundleRefNum m_bundleResourceMap;
+#endif
+#elif PLATFORM(WIN)
+    HMODULE m_module;
+#elif PLATFORM(QT)
+    QLibrary m_lib;
+#elif PLATFORM(GTK)
+    GModule* m_handle;
+#endif
+};
+
+template<typename FunctionType> FunctionType Module::functionPointer(const char* functionName) const
+{
+    return reinterpret_cast<FunctionType>(platformFunctionPointer(functionName));
+}
+
+}
+
+#endif