/**
* @file main.c
- * @purpose Entry point to the program, starts threads, handles cleanup on program exit
+ * @purpose main and its helper functions, signal handling and cleanup functions
*/
#define _POSIX_C_SOURCE 200809L // For strsignal to work
// --- Function definitions --- //
/**
- * @funct ParseArguments
- * @purpose Parse command line arguments, set up an options variable
- * @param argc - Num args
- * @param argv - Array of args
- * @param opts - Pointer to options. &g_options
+ * Parse command line arguments, initialise g_options
+ * @param argc - Number of arguments
+ * @param argv - Array of argument strings
*/
-void ParseArguments(int argc, char ** argv, Options * opts)
+void ParseArguments(int argc, char ** argv)
{
- opts->program = argv[0]; // program name
- opts->verbosity = LOGDEBUG; // default log level
- Log(LOGDEBUG, "ParseArguments", "Called as %s with %d arguments.", opts->program, argc);
+ g_options.program = argv[0]; // program name
+ g_options.verbosity = LOGDEBUG; // default log level
+ Log(LOGDEBUG, "Called as %s with %d arguments.", g_options.program, argc);
}
/**
- * @funct SignalHandler
- * @purpose Handle signals
- * @param sig - The signal
+ * Handle a signal
+ * @param signal - The signal number
*/
-void SignalHandler(int sig)
+void SignalHandler(int signal)
{
// At the moment just always exit.
// Call `exit` so that Cleanup will be called to... clean up.
- Log(LOGWARN, "SignalHandler", "Got signal %d (%s). Exiting.", sig, strsignal(sig));
+ Log(LOGWARN, "Got signal %d (%s). Exiting.", sig, strsignal(sig));
exit(sig);
}
/**
- * @funct Cleanup
- * @purpose Called when program exits
+ * Cleanup before the program exits
*/
void Cleanup()
{
- Log(LOGDEBUG, "Cleanup", "Begin cleanup.");
- Log(LOGDEBUG, "Cleanup", "Finish cleanup.");
+ Log(LOGDEBUG, "Begin cleanup.");
+ Log(LOGDEBUG, "Finish cleanup.");
}
/**
- * @funct main
- * @purpose Main entry point; start worker threads, setup signal handling, wait for threads to exit, exit
+ * Main entry point; start worker threads, setup signal handling, wait for threads to exit, exit
* @param argc - Num args
* @param argv - Args
* @returns 0 on success, error code on failure
*/
int main(int argc, char ** argv)
{
+ ParseArguments(argc, argv, &g_options);
return 0;
}