Introduce src, obj, build, docs & modify Makefile

src/main.c

@@ -0,0 +1,95 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <signal.h>
+#include <unistd.h>
+#include "confparser.h"
+#include "log.h"
+#include "rmps.h"
+
+static void usage(char *argv)
+{
+	log(ERROR,
+		"Usage:\n%s start|stop|restart [--daemonize=yes|no]", argv);
+}
+
+int main(int argc, char *argv[])
+{
+	int fork_flag = 1, task;
+
+	if (argc < 2 || argc > 3) {
+		usage(argv[0]);
+		exit(EXIT_FAILURE);
+	}
+
+	if (!strcmp(argv[1], "start"))
+		task = 1;
+	else if (!strcmp(argv[1], "stop"))
+		task = 2;
+	else if (!strcmp(argv[1], "restart"))
+		task = 3;
+	else {
+		usage(argv[0]);
+		exit(EXIT_FAILURE);
+	}
+
+	if (argc == 3) {
+		if (!strcmp("--daemonize=yes", argv[2]))
+			fork_flag = 1;
+		else if (!strcmp("--daemonize=no", argv[2]))
+			fork_flag = 0;
+		else {
+			usage(argv[0]);
+			exit(EXIT_FAILURE);
+		}
+	}
+	if (confparse() != 0) {
+		log(ERROR, "Failed to parse the conf!");
+		exit(EXIT_FAILURE);
+	}
+	log(VERBOSE, "Conf parser finished successfully");
+	//confexport();
+
+	if (task == 2 || task == 3) {
+		char buf[10];
+		int pid;
+		FILE *fp;
+
+		if (task == 2)
+			log(VERBOSE, "We got a stop signal!");
+		else if (task == 3)
+			log(VERBOSE, "We got a restart signal!");
+
+		fp = fopen(conf.rmps.pidfile, "r");
+
+		switch (errno) {
+		case EEXIST:
+			if (!fgets(buf, 10, fp)) {
+				log(ERROR, "Failed to read %s!",
+					conf.rmps.pidfile);
+				exit(EXIT_FAILURE);
+			}
+			pid = strtol(buf, NULL, 10);
+			kill(pid, SIGTERM);
+			//waitpid(TODO);
+			break;
+		case EACCES:
+			log(ERROR, "Permission denied to read PID. Exiting!");
+			exit(EXIT_FAILURE);
+		case ENOENT:
+			if (task == 2)
+				exit(EXIT_FAILURE);
+			break;
+		default:
+			log(ERROR,
+				"Failed to open PID file (errno: %d. Exiting!",
+				errno);
+			exit(EXIT_FAILURE);
+		}
+	}
+	if (task == 1 || task == 3)
+		launch_rmps(&conf, fork_flag);
+
+	return 0;
+}