dlt-system-logfile.c

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/*
 * @licence app begin@
 * SPDX license identifier: MPL-2.0
 *
 * Copyright (C) 2011-2015, BMW AG
 *
 * This file is part of GENIVI Project DLT - Diagnostic Log and Trace.
 *
 * This Source Code Form is subject to the terms of the
 * Mozilla Public License (MPL), v. 2.0.
 * If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * For further information see http://www.genivi.org/.
 * @licence end@
 */

/*******************************************************************************
**                                                                            **
**  SRC-MODULE: dlt-system-logfile.c                                                  **
**                                                                            **
**  TARGET    : linux                                                         **
**                                                                            **
**  PROJECT   : DLT                                                           **
**                                                                            **
**  AUTHOR    : Lassi Marttala <lassi.lm.marttala@partner.bmw.de>             **
**              Alexander Wenzel Alexander.AW.Wenzel@bmw.de                   **
**                                                                            **
**  PURPOSE   :                                                               **
**                                                                            **
**  REMARKS   :                                                               **
**                                                                            **
**  PLATFORM DEPENDANT [yes/no]: yes                                          **
**                                                                            **
**  TO BE CHANGED BY USER [yes/no]: no                                        **
**                                                                            **
*******************************************************************************/


#include <pthread.h>
#include <unistd.h>
#include "dlt-system.h"

// Modes of sending
#define SEND_MODE_OFF  0
#define SEND_MODE_ONCE 1
#define SEND_MODE_ON   2

DLT_IMPORT_CONTEXT(dltsystem)

extern DltSystemThreads threads;
DltContext logfileContext[DLT_SYSTEM_LOG_FILE_MAX];

void send_file(LogFileOptions const *fileopt, int n)
{
        DLT_LOG(dltsystem, DLT_LOG_DEBUG,
                        DLT_STRING("dlt-system-logfile, sending file."));
        FILE * pFile;
        DltContext context = logfileContext[n];
        char buffer[1024];
        int bytes;
        int seq = 1;

    pFile = fopen((*fileopt).Filename[n],"r");

        if(pFile != NULL)
        {
                while (!feof(pFile)) {
                        bytes = fread(buffer,1,sizeof(buffer)-1,pFile);
                        if(bytes>=0)
                                buffer[bytes] = 0;
                        else
                                buffer[0] = 0;

                        if(feof(pFile)) {
                                DLT_LOG(context, DLT_LOG_INFO, DLT_INT(seq*-1), DLT_STRING(buffer));
                                break;
                        }
                        else {
                                DLT_LOG(context, DLT_LOG_INFO, DLT_INT(seq++), DLT_STRING(buffer));
                        }
                }
                fclose(pFile);
        }
        else
        {
                DLT_LOG(dltsystem, DLT_LOG_ERROR,
                                DLT_STRING("dlt-system-logfile, failed to open file."),
                DLT_STRING((*fileopt).Filename[n]));
        }
}

void register_contexts(LogFileOptions const *fileopts)
{
        DLT_LOG(dltsystem, DLT_LOG_DEBUG,
                        DLT_STRING("dlt-system-logfile, registering file contexts."));
        int i;
    for(i = 0;i < (*fileopts).Count;i++)
        {
        DLT_REGISTER_CONTEXT(logfileContext[i], (*fileopts).ContextId[i],
                (*fileopts).Filename[i]);
        }
}

void logfile_thread(void *v_conf)
{
        DLT_LOG(dltsystem, DLT_LOG_DEBUG,
                        DLT_STRING("dlt-system-logfile, in thread."));
        DltSystemConfiguration *conf = (DltSystemConfiguration *) v_conf;

    register_contexts(&(conf->LogFile));

        int logfile_delays[DLT_SYSTEM_LOG_FILE_MAX];
        int i;
        for(i = 0;i < conf->LogFile.Count;i++)
                logfile_delays[i] = conf->LogFile.TimeDelay[i];

        while(!threads.shutdown)
        {
                sleep(1);
                for(i = 0;i < conf->LogFile.Count;i++)
                {
                        if(conf->LogFile.Mode[i] == SEND_MODE_OFF)
                                continue;

                        if(logfile_delays[i] <= 0)
                        {
                send_file(&(conf->LogFile), i);
                                logfile_delays[i] = conf->LogFile.TimeDelay[i];
                                if(conf->LogFile.Mode[i] == SEND_MODE_ONCE)
                                        conf->LogFile.Mode[i] = SEND_MODE_OFF;
                        }
                        else
                        {
                                logfile_delays[i]--;
                        }
                }
        }
}

void start_logfile(DltSystemConfiguration *conf)
{
        DLT_LOG(dltsystem, DLT_LOG_DEBUG,
                        DLT_STRING("dlt-system-logfile, starting."));
        DLT_LOG(dltsystem,DLT_LOG_DEBUG,DLT_STRING("Starting thread for logfile"));
        static pthread_attr_t t_attr;
        static pthread_t pt;
        pthread_create(&pt, &t_attr, (void *)logfile_thread, conf);
        threads.threads[threads.count++] = pt;
}