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authorSander Vrijders <sander.vrijders@intec.ugent.be>2016-10-30 14:04:03 +0000
committerSander Vrijders <sander.vrijders@intec.ugent.be>2016-10-30 14:04:03 +0000
commit94044e99af295e9440d306719a5cf341645d1803 (patch)
tree49e677cf3626a58737fd3d2d7ac8b0dd7a74517f /src/tools/operf/operf_client.c
parent72eb9eed1284643db20c45ef82365fa54fd0ef1c (diff)
parent05fa4879dd8c70156fd98eabed4634098b0feecb (diff)
downloadouroboros-94044e99af295e9440d306719a5cf341645d1803.tar.gz
ouroboros-94044e99af295e9440d306719a5cf341645d1803.zip
Merged in dstaesse/ouroboros/be-dealloc (pull request #293)
operf tool, bugfixing and small improvements
Diffstat (limited to 'src/tools/operf/operf_client.c')
-rw-r--r--src/tools/operf/operf_client.c248
1 files changed, 248 insertions, 0 deletions
diff --git a/src/tools/operf/operf_client.c b/src/tools/operf/operf_client.c
new file mode 100644
index 00000000..1f6226d4
--- /dev/null
+++ b/src/tools/operf/operf_client.c
@@ -0,0 +1,248 @@
+/*
+ * Ouroboros - Copyright (C) 2016
+ *
+ * Ouroboros ping application
+ *
+ * Dimitri Staessens <dimitri.staessens@intec.ugent.be>
+ * Sander Vrijders <sander.vrijders@intec.ugent.be>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <ouroboros/dev.h>
+#include <ouroboros/time_utils.h>
+
+#ifdef __FreeBSD__
+#define __XSI_VISIBLE 500
+#endif
+
+#include <signal.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <arpa/inet.h>
+#include <math.h>
+#include <errno.h>
+#include <float.h>
+
+void shutdown_client(int signo, siginfo_t * info, void * c)
+{
+ (void) info;
+ (void) c;
+
+ switch(signo) {
+ case SIGINT:
+ case SIGTERM:
+ case SIGHUP:
+ pthread_cancel(client.reader_pt);
+ pthread_cancel(client.writer_pt);
+ default:
+ return;
+ }
+}
+
+void * reader(void * o)
+{
+ struct timespec timeout = {2, 0};
+
+ char buf[OPERF_BUF_SIZE];
+ int fd = 0;
+ int msg_len = 0;
+
+ (void) o;
+
+ /* FIXME: use flow timeout option once we have it */
+ while (flow_event_wait(client.flows, client.fq, &timeout) != -ETIMEDOUT)
+ while ((fd = fqueue_next(client.fq)) >= 0) {
+ msg_len = flow_read(fd, buf, OPERF_BUF_SIZE);
+ if (msg_len != client.size) {
+ printf("Invalid message on fd %d.\n", fd);
+ continue;
+ }
+
+ ++client.rcvd;
+ }
+
+ return (void *) 0;
+}
+
+void * writer(void * o)
+{
+ int * fdp = (int *) o;
+ long gap = client.size * 8.0 * (BILLION / (double) client.rate);
+
+ struct timespec now;
+ struct timespec start;
+ struct timespec intv = {(gap / BILLION), gap % BILLION};
+
+ char * buf = malloc(client.size);
+ if (buf == NULL)
+ return (void *) -ENOMEM;
+
+ if (fdp == NULL)
+ return (void *) -EINVAL;
+
+ memset(buf, 0, client.size);
+
+ if (client.flood)
+ printf("Flooding %s with %d byte SDUs for %d seconds.\n\n",
+ client.s_apn, client.size, client.duration / 1000);
+ else
+ printf("Sending %d byte SDUs for %d s to %s at %.3lf Mb/s.\n\n",
+ client.size, client.duration / 1000, client.s_apn,
+ client.rate / (double) MILLION);
+
+ clock_gettime(CLOCK_REALTIME, &start);
+ clock_gettime(CLOCK_REALTIME, &now);
+
+ pthread_cleanup_push((void (*) (void *)) free, buf);
+
+ if (client.flood) {
+ while (ts_diff_ms(&start, &now) < client.duration) {
+ if (flow_write(*fdp, buf, client.size) == -1) {
+ printf("Failed to send SDU.\n");
+ flow_dealloc(*fdp);
+ free(buf);
+ return (void *) -1;
+ }
+
+ ++client.sent;
+
+ clock_gettime(CLOCK_REALTIME, &now);
+ }
+ } else {
+ while (ts_diff_ms(&start, &now) < client.duration) {
+ if (flow_write(*fdp, buf, client.size) == -1) {
+ printf("Failed to send SDU.\n");
+ flow_dealloc(*fdp);
+ free(buf);
+ return (void *) -1;
+ }
+
+ ++client.sent;
+
+ nanosleep(&intv, NULL);
+
+ clock_gettime(CLOCK_REALTIME, &now);
+ }
+ }
+
+ pthread_cleanup_pop(true);
+
+ printf("Test finished.\n");
+
+ return (void *) 0;
+}
+
+static int client_init(void)
+{
+ client.flows = flow_set_create();
+ if (client.flows == NULL)
+ return -ENOMEM;
+
+ client.fq = fqueue_create();
+ if (client.fq == NULL) {
+ flow_set_destroy(client.flows);
+ return -ENOMEM;
+ }
+
+ client.sent = 0;
+ client.rcvd = 0;
+
+ return 0;
+}
+
+void client_fini(void)
+{
+ if (client.flows != NULL)
+ flow_set_destroy(client.flows);
+
+ if (client.fq != NULL)
+ fqueue_destroy(client.fq);
+}
+
+int client_main(void)
+{
+ struct sigaction sig_act;
+
+ struct timespec tic;
+ struct timespec toc;
+
+ int fd;
+
+ memset(&sig_act, 0, sizeof sig_act);
+ sig_act.sa_sigaction = &shutdown_client;
+ sig_act.sa_flags = 0;
+
+ if (sigaction(SIGINT, &sig_act, NULL) ||
+ sigaction(SIGTERM, &sig_act, NULL) ||
+ sigaction(SIGHUP, &sig_act, NULL) ||
+ sigaction(SIGPIPE, &sig_act, NULL)) {
+ printf("Failed to install sighandler.\n");
+ return -1;
+ }
+
+ if (client_init()) {
+ printf("Failed to initialize client.\n");
+ return -1;
+ }
+
+ fd = flow_alloc(client.s_apn, NULL, NULL);
+ if (fd < 0) {
+ flow_set_destroy(client.flows);
+ fqueue_destroy(client.fq);
+ printf("Failed to allocate flow.\n");
+ return -1;
+ }
+
+ flow_set_add(client.flows, fd);
+
+ if (flow_alloc_res(fd)) {
+ printf("Flow allocation refused.\n");
+ flow_set_del(client.flows, fd);
+ flow_dealloc(fd);
+ client_fini();
+ return -1;
+ }
+
+ clock_gettime(CLOCK_REALTIME, &tic);
+
+ pthread_create(&client.reader_pt, NULL, reader, NULL);
+ pthread_create(&client.writer_pt, NULL, writer, &fd);
+
+ pthread_join(client.writer_pt, NULL);
+
+ clock_gettime(CLOCK_REALTIME, &toc);
+
+ pthread_join(client.reader_pt, NULL);
+
+ printf("\n");
+ printf("--- %s perf statistics ---\n", client.s_apn);
+ printf("%ld SDUs transmitted, ", client.sent);
+ printf("%ld received, ", client.rcvd);
+ printf("%ld%% packet loss, ", client.sent == 0 ? 0 :
+ 100 - ((100 * client.rcvd) / client.sent));
+ printf("time: %.3f ms, ", ts_diff_us(&tic, &toc) / 1000.0);
+ printf("bandwidth: %.3lf Mb/s.\n",
+ (client.rcvd * client.size * 8)
+ / (double) ts_diff_us(&tic, &toc));
+
+ flow_set_del(client.flows, fd);
+
+ flow_dealloc(fd);
+
+ client_fini();
+
+ return 0;
+}