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/*
* Copyright 2008, The Android Open Source Project
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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 THE COPYRIGHT HOLDERS ``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 THE COPYRIGHT OWNER OR
* 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 Command_h
#define Command_h
#include "wtf/MainThread.h"
#include "wtf/Vector.h"
namespace WebCore {
class Frame;
}
using namespace WTF;
using namespace WebCore;
namespace android {
// WebCore Debug Server
namespace WDS {
class Connection;
// Command identifier length
#define COMMAND_LENGTH 4
// The dispatcher function called with a Frame for context and the established
// connection to the client. The connection can be used to read and write to the
// client application. Return true on successful completion of the command,
// return false to indicate failure.
typedef bool (*DispatchFunction)(const Frame*, const Connection*);
// Note: Although the type is named MainThreadFunction, it may not always be
// the main thread. The type is generic enough to reuse here but named
// something more appropriate.
typedef MainThreadFunction TargetThreadFunction;
// Helper class to dipatch functions on a particular thread.
class Handler {
public:
virtual ~Handler() {}
virtual void post(TargetThreadFunction, void*) const = 0;
};
// Class for containing information about particular commands.
class Command {
public:
Command(const char* name, const char* desc, const DispatchFunction func,
const Handler& handler)
: m_name(name)
, m_description(desc)
, m_dispatch(func)
, m_handler(handler) {}
Command(const Command& comm)
: m_name(comm.m_name)
, m_description(comm.m_description)
, m_dispatch(comm.m_dispatch)
, m_handler(comm.m_handler) {}
virtual ~Command() {}
// Initialize the debug server commands
static void Init();
// Find the command specified by the client request.
static Command* Find(const Connection* conn);
// Dispatch this command
void dispatch();
const char* name() const { return m_name; }
protected:
const char* m_name;
const char* m_description;
const DispatchFunction m_dispatch;
private:
const Handler& m_handler;
static Vector<const Command*>* s_commands;
};
} // end namespace WDS
} // end namespace android
#endif
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