From: František Dvořák <valtri@civ.zcu.cz>
Date: Tue, 8 Nov 2005 16:00:18 +0000 (+0000)
Subject: Some missing files yet.
X-Git-Url: http://scientific.zcu.cz/git/?a=commitdiff_plain;h=404f5097611687af9ab8ad933a7f2a46e725ea05;p=jra1mw.git

Some missing files yet.
---

diff --git a/org.glite.jp.index/src/common_server.c b/org.glite.jp.index/src/common_server.c
new file mode 100644
index 0000000..61f987c
--- /dev/null
+++ b/org.glite.jp.index/src/common_server.c
@@ -0,0 +1,69 @@
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+
+/* TODO: belongs to server-bones */
+
+int glite_jpis_daemonize(const char *servername, const char *custom_pidfile, const char *custom_logfile) {
+	int lfd, opid;
+	FILE *fpid;
+	pid_t master;
+	char *pidfile, *logfile;
+
+	if (!custom_logfile) {
+		asprintf(&logfile, "%s/%s.log", geteuid() == 0 ? "/var/log" : getenv("HOME"), servername);
+	} else {
+		logfile = NULL;
+	}
+	lfd = open(logfile ? logfile : custom_logfile,O_CREAT|O_TRUNC|O_WRONLY,0600);
+	if (lfd < 0) {
+		fprintf(stderr,"%s: %s: %s\n",servername,logfile,strerror(errno));
+		free(logfile);
+		return 0;
+	}
+//	printf("logfile: %s\n", logfile ? logfile : custom_logfile);
+	free(logfile);
+
+	daemon(0,1);
+	dup2(lfd,1);
+	dup2(lfd,2);
+
+	if (!custom_pidfile) {
+		asprintf(&pidfile, "%s/%s.pid", geteuid() == 0 ? "/var/run" : getenv("HOME"), servername);
+	} else {
+		pidfile = NULL;
+	}
+//	printf("pidfile: %s\n", pidfile ? pidfile : custom_pidfile);
+	setpgrp(); /* needs for signalling */
+	master = getpid();
+	fpid = fopen(pidfile ? pidfile : custom_pidfile,"r");
+	if ( fpid )
+	{
+		opid = -1;
+
+		if ( fscanf(fpid,"%d",&opid) == 1 )
+		{
+			if ( !kill(opid,0) )
+			{
+				fprintf(stderr,"%s: another instance running, pid = %d\n",servername,opid);
+				return 0;
+			}
+			else if (errno != ESRCH) { perror("kill()"); return 0; }
+		}
+		fclose(fpid);
+	} else if (errno != ENOENT) { perror(pidfile ? pidfile : custom_pidfile); free(pidfile); return 0; }
+
+	fpid = fopen(pidfile ? pidfile : custom_pidfile, "w");
+	if (!fpid) { perror(pidfile ? pidfile : custom_pidfile); free(pidfile); return 0; }
+	free(pidfile);
+	fprintf(fpid, "%d", getpid());
+	fclose(fpid);
+
+	return 1;
+}
diff --git a/org.glite.jp.index/src/common_server.h b/org.glite.jp.index/src/common_server.h
new file mode 100644
index 0000000..45db839
--- /dev/null
+++ b/org.glite.jp.index/src/common_server.h
@@ -0,0 +1,6 @@
+#ifndef GLITE_JPIS_COMMON_SERVER_H
+#define GLITE_JPIS_COMMON_SERVER_H
+
+int glite_jpis_daemonize(const char *servername, const char *custom_pidfile, const char *custom_logfile);
+
+#endif