1 files changed, 169 insertions, 0 deletions
diff --git a/Source/WebKit2/NetworkProcess/cache/NetworkCacheData.h b/Source/WebKit2/NetworkProcess/cache/NetworkCacheData.h
new file mode 100644
index 000000000..29c264b4b
--- /dev/null
+++ b/Source/WebKit2/NetworkProcess/cache/NetworkCacheData.h
@@ -0,0 +1,169 @@
+/*
+ * Copyright (C) 2015 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 NetworkCacheData_h
+#define NetworkCacheData_h
+
+#if ENABLE(NETWORK_CACHE)
+
+#include <functional>
+#include <wtf/FunctionDispatcher.h>
+#include <wtf/SHA1.h>
+#include <wtf/ThreadSafeRefCounted.h>
+#include <wtf/text/WTFString.h>
+
+#if USE(SOUP)
+#include <WebCore/GRefPtrSoup.h>
+#endif
+
+namespace WebKit {
+
+class SharedMemory;
+
+namespace NetworkCache {
+
+#if PLATFORM(COCOA)
+template <typename T> class DispatchPtr;
+template <typename T> DispatchPtr<T> adoptDispatch(T dispatchObject);
+
+// FIXME: Use OSObjectPtr instead when it works with dispatch_data_t on all platforms.
+template<typename T> class DispatchPtr {
+public:
+    DispatchPtr()
+        : m_ptr(nullptr)
+    {
+    }
+    explicit DispatchPtr(T ptr)
+        : m_ptr(ptr)
+    {
+        if (m_ptr)
+            dispatch_retain(m_ptr);
+    }
+    DispatchPtr(const DispatchPtr& other)
+        : m_ptr(other.m_ptr)
+    {
+        if (m_ptr)
+            dispatch_retain(m_ptr);
+    }
+    ~DispatchPtr()
+    {
+        if (m_ptr)
+            dispatch_release(m_ptr);
+    }
+
+    DispatchPtr& operator=(const DispatchPtr& other)
+    {
+        auto copy = other;
+        std::swap(m_ptr, copy.m_ptr);
+        return *this;
+    }
+
+    T get() const { return m_ptr; }
+    explicit operator bool() const { return m_ptr; }
+
+    friend DispatchPtr adoptDispatch<T>(T);
+
+private:
+    struct Adopt { };
+    DispatchPtr(Adopt, T data)
+        : m_ptr(data)
+    {
+    }
+
+    T m_ptr;
+};
+
+template <typename T> DispatchPtr<T> adoptDispatch(T dispatchObject)
+{
+    return DispatchPtr<T>(typename DispatchPtr<T>::Adopt { }, dispatchObject);
+}
+#endif
+
+class Data {
+public:
+    Data() { }
+    Data(const uint8_t*, size_t);
+
+    ~Data() { }
+
+    static Data empty();
+    static Data adoptMap(void* map, size_t, int fd);
+
+#if PLATFORM(COCOA)
+    enum class Backing { Buffer, Map };
+    Data(DispatchPtr<dispatch_data_t>, Backing = Backing::Buffer);
+#endif
+#if USE(SOUP)
+    Data(GRefPtr<SoupBuffer>&&, int fd = -1);
+#endif
+    bool isNull() const;
+    bool isEmpty() const { return !m_size; }
+
+    const uint8_t* data() const;
+    size_t size() const { return m_size; }
+    bool isMap() const { return m_isMap; }
+    RefPtr<SharedMemory> tryCreateSharedMemory() const;
+
+    Data subrange(size_t offset, size_t) const;
+
+    bool apply(const Function<bool (const uint8_t*, size_t)>&) const;
+
+    Data mapToFile(const char* path) const;
+
+#if PLATFORM(COCOA)
+    dispatch_data_t dispatchData() const { return m_dispatchData.get(); }
+#endif
+
+#if USE(SOUP)
+    SoupBuffer* soupBuffer() const { return m_buffer.get(); }
+#endif
+private:
+#if PLATFORM(COCOA)
+    mutable DispatchPtr<dispatch_data_t> m_dispatchData;
+#endif
+#if USE(SOUP)
+    mutable GRefPtr<SoupBuffer> m_buffer;
+    int m_fileDescriptor { -1 };
+#endif
+    mutable const uint8_t* m_data { nullptr };
+    size_t m_size { 0 };
+    bool m_isMap { false };
+};
+
+Data concatenate(const Data&, const Data&);
+bool bytesEqual(const Data&, const Data&);
+Data adoptAndMapFile(int fd, size_t offset, size_t);
+Data mapFile(const char* path);
+
+using Salt = std::array<uint8_t, 8>;
+
+std::optional<Salt> readOrMakeSalt(const String& path);
+SHA1::Digest computeSHA1(const Data&, const Salt&);
+
+}
+}
+
+#endif
+#endif