Log.cpp

Go to the documentation of this file.

#include "Log.h"

// static singleton pointer
Log* Log::mp_instance = NULL;


Log::Log() {
        mp_file = NULL;
        mp_filename = NULL;
}

Log::~Log() {
        clear();
}

Log* Log::instance() {
        if (mp_instance)
                return mp_instance;

        return mp_instance = new Log();
}

void Log::clear() {
        if (mp_instance) delete mp_instance;
        mp_instance = NULL;
}

void Log::setFile(char *p_filename) {
        if (mp_filename)
                delete [] mp_filename;

        mp_filename = new char[strlen(p_filename)];
        if (!mp_filename)
                return;

        strcpy(mp_filename, p_filename);

        mp_file = fopen(mp_filename, "wb");
        if (!mp_file)
                return;

        fclose(mp_file);

        LOG_SUCCESS(("Log file created"));
}

void Log::printError(char *p_text, ...) {
        char msg[LOG_MAX_LEN];
        va_list vaList;

        if (p_text == NULL)
                return;

        va_start(vaList, p_text);
                vsprintf(msg, p_text, vaList);
        va_end(vaList);

        printFile(LOG_MSG_ERROR, msg);
}

void Log::printSuccess(char *p_text, ...) {
        char msg[LOG_MAX_LEN];
        va_list vaList;

        if (p_text == NULL)
                return;

        va_start(vaList, p_text);
                vsprintf(msg, p_text, vaList);
        va_end(vaList);

        printFile(LOG_MSG_SUCCESS, msg);
}

void Log::printMisc(char *p_text, ...) {
        char msg[LOG_MAX_LEN];
        va_list vaList;

        if (p_text == NULL)
                return;

        va_start(vaList, p_text);
                vsprintf(msg, p_text, vaList);
        va_end(vaList);

        printFile(LOG_MSG_MISC, msg);
}

void Log::printFile(int flag, char *msg) {
        if (!mp_filename) {
                setFile("Log.txt");

                if (!mp_filename)
                        return;
        }

        mp_file = fopen(mp_filename, "a+");
        if (!mp_file)
                return;

        switch (flag) {
                case LOG_MSG_ERROR:             fprintf(mp_file, "<!> ");       break;
                case LOG_MSG_SUCCESS:   fprintf(mp_file, "<-> ");       break;
                case LOG_MSG_MISC:              fprintf(mp_file, "<#> ");       break;
        }

        fprintf(mp_file, msg);
        putc('\n', mp_file);
        fclose(mp_file);
        mp_file = NULL;
}

void Log::printNewline() {
        if (!mp_filename) {
                setFile("Log.txt");

                if (!mp_filename)
                        return;
        }

        mp_file = fopen(mp_filename, "a+");
        if (!mp_file)
                return;

        putc('\n', mp_file);
        fclose(mp_file);
        mp_file = NULL;
}

---