webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 96 insertions, 0 deletions

diff --git a/Source/WebKit2/NetworkProcess/Downloads/DownloadID.h b/Source/WebKit2/NetworkProcess/Downloads/DownloadID.h
new file mode 100644
index 000000000..04df707f8
--- /dev/null
+++ b/Source/WebKit2/NetworkProcess/Downloads/DownloadID.h
@@ -0,0 +1,96 @@
+/*
+ * 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 DownloadID_h
+#define DownloadID_h
+
+#include "ArgumentCoder.h"
+#include "Decoder.h"
+#include "Encoder.h"
+#include <wtf/HashTraits.h>
+
+namespace WebKit {
+
+class DownloadID {
+public:
+    DownloadID()
+    {
+    }
+
+    explicit DownloadID(uint64_t downloadID)
+        : m_downloadID(downloadID)
+    {
+    }
+
+    bool operator==(DownloadID other) const { return m_downloadID == other.m_downloadID; }
+    bool operator!=(DownloadID other) const { return m_downloadID != other.m_downloadID; }
+
+    uint64_t downloadID() const { return m_downloadID; }
+private:
+    uint64_t m_downloadID { 0 };
+};
+
+}
+
+namespace IPC {
+    
+template<> struct ArgumentCoder<WebKit::DownloadID> {
+    static void encode(Encoder& encoder, const WebKit::DownloadID& downloadID)
+    {
+        encoder << downloadID.downloadID();
+    }
+    static bool decode(Decoder& decoder, WebKit::DownloadID& downloadID)
+    {
+        uint64_t id;
+        if (!decoder.decode(id))
+            return false;
+
+        downloadID = WebKit::DownloadID(id);
+        
+        return true;
+    }
+};
+
+}
+
+namespace WTF {
+    
+struct DownloadIDHash {
+    static unsigned hash(const WebKit::DownloadID& d) { return intHash(d.downloadID()); }
+    static bool equal(const WebKit::DownloadID& a, const WebKit::DownloadID& b) { return a.downloadID() == b.downloadID(); }
+    static const bool safeToCompareToEmptyOrDeleted = true;
+};
+template<> struct HashTraits<WebKit::DownloadID> : GenericHashTraits<WebKit::DownloadID> {
+    static WebKit::DownloadID emptyValue() { return { }; }
+    
+    static void constructDeletedValue(WebKit::DownloadID& slot) { slot = WebKit::DownloadID(std::numeric_limits<uint64_t>::max()); }
+    static bool isDeletedValue(const WebKit::DownloadID& slot) { return slot.downloadID() == std::numeric_limits<uint64_t>::max(); }
+};
+template<> struct DefaultHash<WebKit::DownloadID> {
+    typedef DownloadIDHash Hash;
+};
+
+}
+#endif /* DownloadID_h */