fd #0 is valid so it must be closed too

git-svn-id: file:///home/svn/mapi/trunk@1391 8d5bb341-7cf1-0310-8cf6-ba355fef3186

applications/packetloss/packetloss.c

@@ -543,7 +543,7 @@ void connect_hosts() { // {{{
 	if(!host[h].enabled) host[h].fd = -1;
 	if(host[h].enabled && !host[h].connected && !mapi_is_sensor_down(host[h].fd)) {
 
-		if(host[h].fd > 0) { // probably forced reconnection, try to close first
+		if(host[h].fd != -1) { // probably forced reconnection, try to close first
 			fprintf(stdout, "packetloss: close flow to %s\n", host[h].name); fflush(stdout);
 			if (mapi_close_flow(host[h].fd) < 0) {
 				fprintf(stderr, "packetloss: Close flow failed\n");
@@ -1022,6 +1022,7 @@ int main(int argc, char *argv[]) {
 		host[h].netload_stats_dev = (struct tstatistics *) getcmem(host[h].devices, sizeof(struct tstatistics));
 		host[h].flowsstats_dev = (struct flows_stat *) getcmem(host[h].devices, sizeof(struct flows_stat));
 		host[h].flowsstats_total_dev = (struct flows_stat_total *) getcmem(host[h].devices, sizeof(struct flows_stat_total));
+		host[h].fd = -1;
 	}
 	// }}}
 
@@ -1147,11 +1148,13 @@ int main(int argc, char *argv[]) {
 
 		// Read expired_flows results from hosts {{{
 		for (h = 0; h < hosts; h++) {
-			if(mapi_is_sensor_down(host[h].fd)) host[h].connected = 0;
-			if(host[h].connected) {
-				state(S_MAPI_READ_RESULTS, host[h].name);
-				if((host[h].results_dev = (mapi_results_t *) mapi_read_results(host[h].fd, host[h].fid_loss)) == NULL) host[h].connected = 0;
-				if((host[h].results_netload_dev = (mapi_results_t *) mapi_read_results(host[h].fd, host[h].fid_load)) == NULL) host[h].connected = 0;
+			if(host[h].enabled && host[h].connected && host[h].fd != -1) {
+				if(mapi_is_sensor_down(host[h].fd)) host[h].connected = 0;
+				if(host[h].connected) {
+					state(S_MAPI_READ_RESULTS, host[h].name);
+					if((host[h].results_dev = (mapi_results_t *) mapi_read_results(host[h].fd, host[h].fid_loss)) == NULL) host[h].connected = 0;
+					if((host[h].results_netload_dev = (mapi_results_t *) mapi_read_results(host[h].fd, host[h].fid_load)) == NULL) host[h].connected = 0;
+				}
 			}
 		}
 		// }}}