diff options
Diffstat (limited to 'contrib/netbsd-tests/rump/rumpkern/h_client/h_stresscli.c')
| -rw-r--r-- | contrib/netbsd-tests/rump/rumpkern/h_client/h_stresscli.c | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/rump/rumpkern/h_client/h_stresscli.c b/contrib/netbsd-tests/rump/rumpkern/h_client/h_stresscli.c new file mode 100644 index 000000000000..d49edeb9a6f2 --- /dev/null +++ b/contrib/netbsd-tests/rump/rumpkern/h_client/h_stresscli.c @@ -0,0 +1,219 @@ +/* $NetBSD: h_stresscli.c,v 1.9 2011/06/26 13:17:36 christos Exp $ */ + +#include <sys/types.h> +#include <sys/atomic.h> +#include <sys/sysctl.h> +#include <sys/wait.h> +#include <sys/socket.h> + +#include <netinet/in.h> + +#include <err.h> +#include <fcntl.h> +#include <pthread.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <signal.h> + +#include <rump/rump_syscalls.h> +#include <rump/rumpclient.h> + +static unsigned int syscalls, bindcalls; +static pid_t mypid; +static volatile sig_atomic_t doquit; + +static void +signaali(int sig) +{ + + doquit = 1; +} + +static const int hostnamemib[] = { CTL_KERN, KERN_HOSTNAME }; +static char hostnamebuf[128]; +#define HOSTNAMEBASE "rumpclient" + +static int iskiller; + +static void * +client(void *arg) +{ + char buf[256]; + struct sockaddr_in sin; + size_t blen; + int port = (int)(uintptr_t)arg; + int s, fd, x; + + memset(&sin, 0, sizeof(sin)); + sin.sin_family = AF_INET; + sin.sin_len = sizeof(sin); + sin.sin_port = htons(port); + + while (!doquit) { + pid_t pidi; + blen = sizeof(buf); + s = rump_sys_socket(PF_INET, SOCK_STREAM, 0); + if (s == -1) + err(1, "socket"); + atomic_inc_uint(&syscalls); + + fd = rump_sys_open("/dev/null", O_RDWR); + atomic_inc_uint(&syscalls); + + if (doquit) + goto out; + + x = 1; + if (rump_sys_setsockopt(s, SOL_SOCKET, SO_REUSEADDR, + &x, sizeof(x)) == -1) + err(1, "reuseaddr"); + + /* + * we don't really know when the kernel handles our disconnect, + * so be soft about about the failure in case of a killer client + */ + if (rump_sys_bind(s, (struct sockaddr*)&sin, sizeof(sin))==-1) { + if (!iskiller) + err(1, "bind to port %d failed", + ntohs(sin.sin_port)); + } else { + atomic_inc_uint(&bindcalls); + } + atomic_inc_uint(&syscalls); + + if (doquit) + goto out; + + if (rump_sys___sysctl(hostnamemib, __arraycount(hostnamemib), + buf, &blen, NULL, 0) == -1) + err(1, "sysctl"); + if (strncmp(buf, hostnamebuf, sizeof(HOSTNAMEBASE)-1) != 0) + errx(1, "hostname (%s/%s) mismatch", buf, hostnamebuf); + atomic_inc_uint(&syscalls); + + if (doquit) + goto out; + + pidi = rump_sys_getpid(); + if (pidi == -1) + err(1, "getpid"); + if (pidi != mypid) + errx(1, "mypid mismatch"); + atomic_inc_uint(&syscalls); + + if (doquit) + goto out; + + if (rump_sys_write(fd, buf, 16) != 16) + err(1, "write /dev/null"); + atomic_inc_uint(&syscalls); + + out: + rump_sys_close(fd); + atomic_inc_uint(&syscalls); + rump_sys_close(s); + atomic_inc_uint(&syscalls); + } + + return NULL; +} + +/* Stress with max 32 clients, 8 threads each (256 concurrent threads) */ +#define NCLI 32 +#define NTHR 8 + +int +main(int argc, char *argv[]) +{ + pthread_t pt[NTHR-1]; + pid_t clis[NCLI]; + pid_t apid; + int ncli = 0; + int i = 0, j; + int status, thesig; + int rounds, myport; + + if (argc != 2 && argc != 3) + errx(1, "need roundcount"); + + if (argc == 3) { + if (strcmp(argv[2], "kill") != 0) + errx(1, "optional 3rd param must be kill"); + thesig = SIGKILL; + iskiller = 1; + } else { + thesig = SIGUSR1; + } + + signal(SIGUSR1, signaali); + + memset(clis, 0, sizeof(clis)); + for (rounds = 1; rounds < atoi(argv[1])*10; rounds++) { + while (ncli < NCLI) { + switch ((apid = fork())) { + case -1: + err(1, "fork failed"); + case 0: + if (rumpclient_init() == -1) + err(1, "rumpclient init"); + + mypid = rump_sys_getpid(); + sprintf(hostnamebuf, HOSTNAMEBASE "%d", mypid); + if (rump_sys___sysctl(hostnamemib, + __arraycount(hostnamemib), NULL, NULL, + hostnamebuf, strlen(hostnamebuf)+1) == -1) + err(1, "sethostname"); + + for (j = 0; j < NTHR-1; j++) { + myport = i*NCLI + j+2; + if (pthread_create(&pt[j], NULL, + client, + (void*)(uintptr_t)myport) !=0 ) + err(1, "pthread create"); + } + myport = i*NCLI+1; + client((void *)(uintptr_t)myport); + for (j = 0; j < NTHR-1; j++) + pthread_join(pt[j], NULL); + membar_consumer(); + fprintf(stderr, "done %d\n", syscalls); + exit(0); + /* NOTREACHED */ + default: + ncli++; + clis[i] = apid; + break; + } + + i = (i + 1) % NCLI; + } + + usleep(100000); + kill(clis[i], thesig); + + apid = wait(&status); + if (apid != clis[i]) + errx(1, "wanted pid %d, got %d\n", clis[i], apid); + clis[i] = 0; + ncli--; + if (thesig == SIGUSR1) { + if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) { + fprintf(stderr, "child died with 0x%x\n", + status); + exit(1); + } + } else { + if (!WIFSIGNALED(status) || WTERMSIG(status) != thesig){ + fprintf(stderr, "child died with 0x%x\n", + status); + exit(1); + } + } + } + + for (i = 0; i < NCLI; i++) + if (clis[i]) + kill(clis[i], SIGKILL); +} |