AmiTimeKeeper/logger.c

/*-
 * Copyright (c) 2017-2020 Carsten Sonne Larsen <cs@innolan.net>
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 *
 */

#include <stddef.h>
#include <stdarg.h>
#include <stdbool.h>

#include <proto/dos.h>
#include <proto/exec.h>
#include <exec/ports.h>
#include <exec/memory.h>

#include "logger.h"
#include "string.h"

static void MsgLoop(void);

static int VerboseLevel = 10;
static struct MsgPort *LoggerPort;

const char *vers = "\0$VER: TimeLogger 1.10 (20.03.2020)";

/*
struct LogMessage
{
    struct timeval time;
    enum LogSeverity severity;
    const char *module;
    const char *message;
    struct LogMessage *next;
};
*/

int main(int argc, char **argv)
{
    Printf((STRPTR) "Starting TimeLogger.\n");

    LoggerPort = CreateMsgPort();
    if (LoggerPort == NULL)
    {
        Printf((STRPTR) "Could not message port\n");
        return 10;
    }

    LoggerPort->mp_Node.ln_Name = LOGGER_PORT_NAME;
    LoggerPort->mp_Node.ln_Pri = 0;

    AddPort(LoggerPort);
    MsgLoop();
    RemPort(LoggerPort);

    DeleteMsgPort(LoggerPort);
    return 0;
}

static const char *SeverityText(enum LogSeverity level)
{
    switch (level)
    {
    case ErrorMessage:
        return "[Error]";
    case WarningMessage:
        return "[Warn ]";
    case InfoMessage:
        return "[Info ]";
    case DebugMessage:
        return "[Debug]";
    case TraceMessage:
    case MemTraceMessage:
        return "[Trace]";
    default:
        return "[Trace]";
    }
}

static void LogMessage(enum LogSeverity level, const char *module, const char *log)
{
    if (VerboseLevel * 10 >= (int)level)
    {
        char line[MAXLOGLINESIZE + 32];
        const char *severity = SeverityText(level);
        SNPrintf(line, MAXLOGLINESIZE + 32, "%s[%s] %s", severity, module, log);
        TrimRight(line);

        // TODO: Option to log using a file

        if (Output() != (BPTR)0)
        {
            Printf((STRPTR)line);
            Printf((STRPTR) "\n");
        }
    }
}

static void MsgLoop(void)
{
    bool loop = true;
    ULONG loggerSigMask = (1 << LoggerPort->mp_SigBit);
    ULONG sigMask = loggerSigMask | SIGBREAKF_CTRL_C;

    Printf((STRPTR) "Waiting for log messages ...\n");

    do
    {
        ULONG sigrcvd = Wait(sigMask);
        if (sigrcvd & sigMask)
        {
            struct LogMessage *msg;
            while ((msg = (struct LogMessage *)GetMsg(LoggerPort)))
            {
                struct LogMessage copy;
                CopyMem(msg, &copy, sizeof(struct LogMessage));
                ReplyMsg((struct Message *)msg);

                switch (copy.Type)
                {
                case LogMessageText:
                    LogMessage(copy.Severity, copy.Module, copy.Text);
                    break;
                case LogMessageShutdown:
                    loop = false;
                    break;
                default:
                    break;
                }
            }
        }

        if (sigrcvd & SIGBREAKF_CTRL_C)
        {
            Printf((STRPTR) "Shutting down\n");
            loop = false;
        }
    } while (loop);
}