1 /* $NetBSD: h_stresscli.c,v 1.9 2011/06/26 13:17:36 christos Exp $ */
4 #include <sys/atomic.h>
5 #include <sys/sysctl.h>
7 #include <sys/socket.h>
9 #include <netinet/in.h>
20 #include <rump/rump_syscalls.h>
21 #include <rump/rumpclient.h>
23 static unsigned int syscalls, bindcalls;
25 static volatile sig_atomic_t doquit;
34 static const int hostnamemib[] = { CTL_KERN, KERN_HOSTNAME };
35 static char hostnamebuf[128];
36 #define HOSTNAMEBASE "rumpclient"
44 struct sockaddr_in sin;
46 int port = (int)(uintptr_t)arg;
49 memset(&sin, 0, sizeof(sin));
50 sin.sin_family = AF_INET;
51 sin.sin_len = sizeof(sin);
52 sin.sin_port = htons(port);
57 s = rump_sys_socket(PF_INET, SOCK_STREAM, 0);
60 atomic_inc_uint(&syscalls);
62 fd = rump_sys_open("/dev/null", O_RDWR);
63 atomic_inc_uint(&syscalls);
69 if (rump_sys_setsockopt(s, SOL_SOCKET, SO_REUSEADDR,
74 * we don't really know when the kernel handles our disconnect,
75 * so be soft about about the failure in case of a killer client
77 if (rump_sys_bind(s, (struct sockaddr*)&sin, sizeof(sin))==-1) {
79 err(1, "bind to port %d failed",
82 atomic_inc_uint(&bindcalls);
84 atomic_inc_uint(&syscalls);
89 if (rump_sys___sysctl(hostnamemib, __arraycount(hostnamemib),
90 buf, &blen, NULL, 0) == -1)
92 if (strncmp(buf, hostnamebuf, sizeof(HOSTNAMEBASE)-1) != 0)
93 errx(1, "hostname (%s/%s) mismatch", buf, hostnamebuf);
94 atomic_inc_uint(&syscalls);
99 pidi = rump_sys_getpid();
103 errx(1, "mypid mismatch");
104 atomic_inc_uint(&syscalls);
109 if (rump_sys_write(fd, buf, 16) != 16)
110 err(1, "write /dev/null");
111 atomic_inc_uint(&syscalls);
115 atomic_inc_uint(&syscalls);
117 atomic_inc_uint(&syscalls);
123 /* Stress with max 32 clients, 8 threads each (256 concurrent threads) */
128 main(int argc, char *argv[])
130 pthread_t pt[NTHR-1];
138 if (argc != 2 && argc != 3)
139 errx(1, "need roundcount");
142 if (strcmp(argv[2], "kill") != 0)
143 errx(1, "optional 3rd param must be kill");
150 signal(SIGUSR1, signaali);
152 memset(clis, 0, sizeof(clis));
153 for (rounds = 1; rounds < atoi(argv[1])*10; rounds++) {
154 while (ncli < NCLI) {
155 switch ((apid = fork())) {
157 err(1, "fork failed");
159 if (rumpclient_init() == -1)
160 err(1, "rumpclient init");
162 mypid = rump_sys_getpid();
163 sprintf(hostnamebuf, HOSTNAMEBASE "%d", mypid);
164 if (rump_sys___sysctl(hostnamemib,
165 __arraycount(hostnamemib), NULL, NULL,
166 hostnamebuf, strlen(hostnamebuf)+1) == -1)
167 err(1, "sethostname");
169 for (j = 0; j < NTHR-1; j++) {
170 myport = i*NCLI + j+2;
171 if (pthread_create(&pt[j], NULL,
173 (void*)(uintptr_t)myport) !=0 )
174 err(1, "pthread create");
177 client((void *)(uintptr_t)myport);
178 for (j = 0; j < NTHR-1; j++)
179 pthread_join(pt[j], NULL);
181 fprintf(stderr, "done %d\n", syscalls);
194 kill(clis[i], thesig);
196 apid = wait(&status);
198 errx(1, "wanted pid %d, got %d\n", clis[i], apid);
201 if (thesig == SIGUSR1) {
202 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
203 fprintf(stderr, "child died with 0x%x\n",
208 if (!WIFSIGNALED(status) || WTERMSIG(status) != thesig){
209 fprintf(stderr, "child died with 0x%x\n",
216 for (i = 0; i < NCLI; i++)
218 kill(clis[i], SIGKILL);