gem-graph-server/src/main.c

//=-------------------------------------------------------------------------=//
//  Main                                                                     //
//                                                                           //
//  Copyright © 2021 The Gem-graph Project                                   //
//                                                                           //
//  This file is part of gem-graph.                                          //
//                                                                           //
//  This program is free software: you can redistribute it and/or modify     //
//  it under the terms of the GNU Affero General Public License as           //
//  published by the Free Software Foundation, either version 3 of the       //
//  License, or (at your option) any later version.                          //
//                                                                           //
//  This program is distributed in the hope that it will be useful,          //
//  but WITHOUT ANY WARRANTY; without even the implied warranty of           //
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            //
//  GNU Affero General Public License for more details.                      //
//                                                                           //
//  You should have received a copy of the GNU Affero General Public License //
//  along with this program.  If not, see <https://www.gnu.org/licenses/>.   //
//=-------------------------------------------------------------------------=//

#include "../include/base.h"
#include "../include/server.h"
#include "../include/model.h"

static Server_t *server;

static void ExitingHandler(int signum)
{
    server->pleaseStop = true;
    printLog("Server stopping\n");

    ModelShutdown();
    printLog("All model shutted down\n");
}

// TODO parse args to discover :
//      - config files directory
//      - models & users directories
int main(int argc, char **argv)
{
    time_t t;
    int returnValue = 0;

    // Get parameters TODO from args
    Parameters_t *parameters = (Parameters_t*) calloc(sizeof(Parameters_t), 1);

    parameters->configDir = (char*) malloc(255 * sizeof(char));
    realpath("./debian/etc", parameters->configDir);

    parameters->modelDir = (char*) malloc(255 * sizeof(char));
    realpath("./debian/var/models", parameters->modelDir);

    parameters->userDir = (char*) malloc(255 * sizeof(char));
    realpath("./debian/var/users", parameters->userDir);

    // Go!
    printLog("Starting gem-graph-server...\n");

    // Register new interrupt handler
    signal(SIGINT, ExitingHandler);
    signal(SIGTERM, ExitingHandler);

    // Initializing random generator
    t = time(&t);
    srand((unsigned) t);

    server = (Server_t*) calloc(1, sizeof(Server_t));

    // Initializing model system
    ModelSystemInit(parameters);

    // Launching server
    ServerInit(server);

    // Waiting for termination
    ServerWait(server);

    // Exiting
    returnValue |= server->returnValue;
    ServerDestroy(server);
    ModelSystemDestroy();
    free(server);
    server = NULL;

    free(parameters->userDir);
    free(parameters->modelDir);
    free(parameters->configDir);
    free(parameters);
    parameters = NULL;

    return returnValue;
}