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daemon/graphite.c

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+/*
+ * graphite.c
+ *
+ *  Created on: Jan 19, 2015
+ *      Author: fmetz
+ */
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+
+#include "log.h"
+#include "call.h"
+
+int graphite_sock=0;
+u_int32_t graphite_ipaddress;
+int graphite_port=0;
+struct callmaster* cm=0;
+struct totalstats totalstats_prev;
+
+int connect_to_graphite_server(u_int32_t ipaddress, int port) {
+
+	graphite_sock=0;
+	int reconnect=0, MAXRECONNECTS=5;
+	int rc=0;
+	struct sockaddr_in sin;
+	memset(&sin,0,sizeof(sin));
+	int val=1;
+
+	graphite_ipaddress = ipaddress;
+	graphite_port = port;
+
+	rc = graphite_sock = socket(AF_INET, SOCK_STREAM,0);
+	if(rc<0) {
+		ilog(LOG_ERROR,"Couldn't make socket for connecting to graphite.");
+		return -1;
+	}
+
+	sin.sin_family=AF_INET;
+	sin.sin_addr.s_addr=graphite_ipaddress;
+	sin.sin_port=htons(graphite_port);
+
+	rc = setsockopt(graphite_sock,SOL_SOCKET,SO_REUSEADDR, &val,sizeof(val));
+	if(rc<0) {
+		ilog(LOG_ERROR,"Couldn't set sockopt for graphite descriptor.");
+		return -1;
+	}
+
+	while (reconnect<MAXRECONNECTS) {
+		struct in_addr ip;
+		ip.s_addr = graphite_ipaddress;
+		ilog(LOG_INFO, "Connecting to graphite server %s at port:%i with fd:%i",inet_ntoa(ip),graphite_port,graphite_sock);
+		rc = connect(graphite_sock, (struct sockaddr *)&sin, sizeof(sin));
+		if (rc==-1) {
+			ilog(LOG_ERROR, "Connection could not be established. Trying again in 5 seconds...");
+			sleep(5);
+			++reconnect;
+			if (reconnect==MAXRECONNECTS) {
+				ilog(LOG_ERROR, "Giving 5 seconds retry timer connection to grahpite. Trying again when graphite data is sent.");
+			}
+			continue;
+		}
+		ilog(LOG_INFO, "Graphite server connected.");
+		break;
+	}
+
+	return rc==-1?-1:graphite_sock;
+}
+
+int send_graphite_data() {
+
+	int rc=0;
+
+	if (!graphite_sock) {
+		ilog(LOG_ERROR,"Graphite socket is not connected.");
+		return -1;
+	}
+
+	// format hostname "." totals.subkey SPACE value SPACE timestamp
+	char hostname[256]; memset(&hostname,0,256);
+	rc = gethostname(hostname,256);
+	if (rc<0) {
+		ilog(LOG_ERROR, "Could not retrieve host name information.");
+		return -1;
+	}
+
+	char data_to_send[8192]; memset(&data_to_send,0,8192);
+	char* ptr = data_to_send;
+
+	rc = sprintf(ptr,"%s.totals.average_call_dur.tv_sec %i %u\n",hostname, cm->totalstats_interval.total_average_call_dur.tv_sec,(unsigned)time(NULL)); ptr += rc;
+	rc = sprintf(ptr,"%s.totals.average_call_dur.tv_usec %i %u\n",hostname, cm->totalstats_interval.total_average_call_dur.tv_usec,(unsigned)time(NULL)); ptr += rc;
+	rc = sprintf(ptr,"%s.totals.forced_term_sess %i %u\n",hostname, cm->totalstats_interval.total_forced_term_sess,(unsigned)time(NULL)); ptr += rc;
+	rc = sprintf(ptr,"%s.totals.managed_sess %i %u\n",hostname, cm->totalstats_interval.total_managed_sess,(unsigned)time(NULL)); ptr += rc;
+	rc = sprintf(ptr,"%s.totals.nopacket_relayed_sess %i %u\n",hostname, cm->totalstats_interval.total_nopacket_relayed_sess,(unsigned)time(NULL)); ptr += rc;
+	rc = sprintf(ptr,"%s.totals.oneway_stream_sess %i %u\n",hostname, cm->totalstats_interval.total_oneway_stream_sess,(unsigned)time(NULL)); ptr += rc;
+	rc = sprintf(ptr,"%s.totals.regular_term_sess %i %u\n",hostname, cm->totalstats_interval.total_regular_term_sess,(unsigned)time(NULL)); ptr += rc;
+	rc = sprintf(ptr,"%s.totals.relayed_errors %i %u\n",hostname, cm->totalstats_interval.total_relayed_errors,(unsigned)time(NULL)); ptr += rc;
+	rc = sprintf(ptr,"%s.totals.relayed_packets %i %u\n",hostname, cm->totalstats_interval.total_relayed_packets,(unsigned)time(NULL)); ptr += rc;
+	rc = sprintf(ptr,"%s.totals.silent_timeout_sess %i %u\n",hostname, cm->totalstats_interval.total_silent_timeout_sess,(unsigned)time(NULL)); ptr += rc;
+	rc = sprintf(ptr,"%s.totals.timeout_sess %i %u\n",hostname, cm->totalstats_interval.total_timeout_sess,(unsigned)time(NULL)); ptr += rc;
+
+	ZERO(cm->totalstats_interval);
+
+	rc = write(graphite_sock, data_to_send, strlen(data_to_send));
+	if (rc<0) {
+		ilog(LOG_ERROR,"Could not write to graphite socket. Disconnecting graphite server.");
+		close(graphite_sock); graphite_sock=0;
+		return -1;
+	}
+	return 0;
+}
+
+void graphite_loop_run(struct callmaster* callmaster, int seconds) {
+
+	int rc=0;
+
+	if (!cm)
+		cm = callmaster;
+
+	rc = send_graphite_data();
+	if (rc<0) {
+		rc = connect_to_graphite_server(graphite_ipaddress, graphite_port);
+		if (rc<0) {
+			return;
+		}
+	}
+	sleep(seconds);
+}

daemon/graphite.h

@@ -0,0 +1,17 @@
+/*
+ * graphite.h
+ *
+ *  Created on: Jan 19, 2015
+ *      Author: fmetz
+ */
+
+#ifndef GRAPHITE_H_
+#define GRAPHITE_H_
+
+#include "call.h"
+
+int connect_to_graphite_server(u_int32_t ipaddress, int port);
+int send_graphite_data();
+void graphite_loop_run(struct callmaster* cm, int seconds);
+
+#endif /* GRAPHITE_H_ */