/*******************************************************************************
 * Copyright (C) 2017, 2018, MINRES Technologies GmbH
 * All rights reserved.
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 * 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.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT HOLDER 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
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 * POSSIBILITY OF SUCH DAMAGE.
 *
 * Contributors:
 *       eyck@minres.com - initial API and implementation
 ******************************************************************************/

#ifndef _ISS_PLUGIN_CYCLE_ESTIMATE_H_
#define _ISS_PLUGIN_CYCLE_ESTIMATE_H_

#include "iss/instrumentation_if.h"
#include "iss/vm_plugin.h"
#include <json/json.h>
#include <string>
#include <unordered_map>

namespace iss {

namespace plugin {

class cycle_estimate: public iss::vm_plugin {
	BEGIN_BF_DECL(instr_desc, uint32_t)
		BF_FIELD(taken, 24, 8)
		BF_FIELD(not_taken, 16, 8)
		BF_FIELD(size, 0, 16)
		instr_desc(uint32_t size, uint32_t taken, uint32_t not_taken): instr_desc() {
			this->size=size;
			this->taken=taken;
			this->not_taken=not_taken;
		}
	END_BF_DECL();

public:
    cycle_estimate() = delete;

    cycle_estimate(const cycle_estimate &) = delete;

    cycle_estimate(const cycle_estimate &&) = delete;

    cycle_estimate(std::string config_file_name);

    virtual ~cycle_estimate();

    cycle_estimate &operator=(const cycle_estimate &) = delete;

    cycle_estimate &operator=(const cycle_estimate &&) = delete;

    bool registration(const char *const version, vm_if &arch) override;

    sync_type get_sync() override { return POST_SYNC; };

    void callback(instr_info_t instr_info) override;

private:
    iss::instrumentation_if *arch_instr;
    std::vector<instr_desc> delays;
    struct pair_hash {
        size_t operator()(const std::pair<uint64_t, uint64_t> &p) const {
            std::hash<uint64_t> hash;
            return hash(p.first) + hash(p.second);
        }
    };
    std::unordered_map<std::pair<uint64_t, uint64_t>, uint64_t, pair_hash> blocks;
    Json::Value root;
};
}
}

#endif /* _ISS_PLUGIN_CYCLE_ESTIMATE_H_ */