DBT-RISE-TGC/riscv.sc/incl/sysc/sc_comm_singleton.h

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////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2017, MINRES Technologies GmbH
// 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.
//
// 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
// 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.
//
// Contributors:
// eyck@minres.com - initial implementation
//
//
////////////////////////////////////////////////////////////////////////////////
#ifndef RISCV_SC_INCL_SYSC_SC_COMM_SINGLETON_H_
#define RISCV_SC_INCL_SYSC_SC_COMM_SINGLETON_H_
#include <sysc/kernel/sc_module.h>
#include <seasocks/PageHandler.h>
#include "seasocks/WebSocket.h"
#include <memory>
#include <thread>
#include <cstring>
#include <functional>
namespace sysc {
class WsHandler: public seasocks::WebSocket::Handler {
public:
explicit WsHandler() { }
void onConnect(seasocks::WebSocket* connection) override;
void onData(seasocks::WebSocket* connection, const char* data) override;
void onDisconnect(seasocks::WebSocket* connection) override;
void send(std::string msg) { for (auto *con : _connections) con->send(msg); }
void set_receive_callback(std::function<void(const char* data)> cb){callback=cb;}
private:
std::set<seasocks::WebSocket*> _connections;
std::function<void(const char* data)> callback;
};
class sc_comm_singleton: public sc_core::sc_module {
struct DefaultPageHandler: public seasocks::PageHandler {
DefaultPageHandler(sc_comm_singleton& o):owner(o){}
virtual std::shared_ptr<seasocks::Response> handle(const seasocks::Request& request);
sc_comm_singleton& owner;
};
public:
sc_comm_singleton() = delete;
sc_comm_singleton(const sc_comm_singleton&) = delete;
sc_comm_singleton& operator=(sc_comm_singleton& o) = delete;
virtual ~sc_comm_singleton();
static sc_comm_singleton& inst(){
static sc_comm_singleton i("__sc_singleton");
return i;
}
seasocks::Server& get_server();
void registerWebSocketHandler(const char* endpoint, std::shared_ptr<seasocks::WebSocket::Handler> handler, bool allowCrossOriginRequests = false);
void execute(std::function<void()> f);
void start_client();
protected:
void start_of_simulation() override;
void end_of_simulation() override;
private:
sc_comm_singleton(sc_core::sc_module_name nm);
std::unique_ptr<seasocks::Server> m_serv;
std::thread t;
void thread_func();
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bool needs_client, client_started;
std::vector<std::string> endpoints;
};
} /* namespace sysc */
#endif /* RISCV_SC_INCL_SYSC_SC_COMM_SINGLETON_H_ */