5 #include <sys/socket.h>
10 #include <netinet/in.h>
19 static void mainloop(const struct sockaddr_in *, int, int, long, u_long *,
23 usage(const char *cmd)
25 fprintf(stderr, "%s -4 inet4 [-4 inet4_1] -p port "
26 "[-i n_instance] [-c conn_max] [-l duration] [-u]\n", cmd);
31 main(int argc, char *argv[])
33 struct sockaddr_in *in, *tmp;
34 int opt, ninst, nconn, i, in_max, in_cnt, do_udp;
46 in = calloc(in_max, sizeof(struct sockaddr_in));
48 fprintf(stderr, "calloc failed\n");
53 while ((opt = getopt(argc, argv, "4:p:i:l:c:u")) != -1) {
56 if (in_cnt >= in_max) {
57 struct sockaddr_in *old_in = in;
58 int old_in_max = in_max;
61 in = calloc(in_max, sizeof(struct sockaddr_in));
63 fprintf(stderr, "calloc failed\n");
68 old_in_max * sizeof(struct sockaddr_in));
73 if (inet_pton(AF_INET, optarg, &tmp->sin_addr) <= 0) {
74 fprintf(stderr, "invalid inet address %s\n",
82 port = htons(atoi(optarg));
94 dur = strtol(optarg, NULL, 10);
106 if (ninst < 1 || dur < 1 || nconn < 1 || port == 0 || in_cnt == 0)
109 for (i = 0; i < in_cnt; ++i) {
111 tmp->sin_family = AF_INET;
112 tmp->sin_port = port;
115 result = mmap(NULL, ninst * sizeof(u_long), PROT_READ | PROT_WRITE,
116 MAP_ANON | MAP_SHARED, -1, 0);
117 if (result == MAP_FAILED) {
118 fprintf(stderr, "mmap failed: %d\n", errno);
121 memset(result, 0, ninst * sizeof(u_long));
123 for (i = 0; i < ninst; ++i) {
128 mainloop(in, in_cnt, nconn, dur, &result[i], do_udp);
130 } else if (pid < 0) {
131 fprintf(stderr, "fork failed: %d\n", errno);
135 for (i = 0; i < ninst; ++i) {
138 pid = waitpid(-1, NULL, 0);
140 fprintf(stderr, "waitpid failed: %d\n", errno);
146 for (i = 0; i < ninst; ++i)
148 printf("%.2f\n", (double)sum / (double)dur);
154 udp_send(const struct sockaddr_in *in)
159 s = socket(AF_INET, SOCK_DGRAM, 0);
161 fprintf(stderr, "socket DGRAM failed: %d\n", errno);
165 if (connect(s, (const struct sockaddr *)in, sizeof(*in)) < 0) {
166 fprintf(stderr, "connect DGRAM failed: %d\n", errno);
170 write(s, d, sizeof(d));
176 mainloop(const struct sockaddr_in *in, int in_cnt, int nconn_max,
177 long dur, u_long *res, int do_udp)
179 struct kevent *evt_change0, *evt;
180 int kq, nchange = 0, nconn = 0, nevt_max;
187 fprintf(stderr, "kqueue failed: %d\n", errno);
191 nevt_max = nconn_max + 1; /* timer */
193 evt_change0 = malloc(nevt_max * sizeof(struct kevent));
194 if (evt_change0 == NULL) {
195 fprintf(stderr, "malloc evt_change failed\n");
199 evt = malloc(nevt_max * sizeof(struct kevent));
201 fprintf(stderr, "malloc evt failed\n");
205 EV_SET(&evt_change0[0], 0, EVFILT_TIMER, EV_ADD | EV_ONESHOT, 0,
210 struct kevent *evt_change = NULL;
213 while (nconn < nconn_max) {
214 const struct sockaddr_in *tmp;
217 tmp = &in[in_idx % in_cnt];
223 s = socket(AF_INET, SOCK_STREAM, 0);
225 fprintf(stderr, "socket failed: %d\n", errno);
229 if (ioctl(s, FIONBIO, &nblock, sizeof(nblock)) < 0) {
230 fprintf(stderr, "ioctl failed: %d\n", errno);
234 n = connect(s, (const struct sockaddr *)tmp,
243 if (error != EINPROGRESS) {
244 fprintf(stderr, "connect failed: %d\n",
251 if (nchange >= nevt_max) {
252 fprintf(stderr, "invalid nchange %d, max %d\n",
256 EV_SET(&evt_change0[nchange], s, EVFILT_WRITE, EV_ADD,
262 evt_change = evt_change0;
264 n = kevent(kq, evt_change, nchange, evt, nevt_max, NULL);
266 fprintf(stderr, "kevent failed: %d\n", errno);
271 for (i = 0; i < n; ++i) {
272 struct kevent *e = &evt[i];
274 if (e->filter == EVFILT_TIMER) {
279 if ((e->flags & EV_EOF) && e->fflags) {
280 /* Error, don't count */