diff options
Diffstat (limited to 'src/tools/operf/operf_client.c')
| -rw-r--r-- | src/tools/operf/operf_client.c | 248 |
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 <[email protected]> + * Sander Vrijders <[email protected]> + * + * 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; +} |