Return to udgself.c CVS log

Up to [Net/2] / Net2 / tests / benchmarks

Annotation of Net2/tests/benchmarks/udgself.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * IPC benchmark,
                      3:  * write and discard to self using pipes.
                      4:  */
                      5: 
                      6: #include <stdio.h>
                      7: #include <signal.h>
                      8: 
                      9: #include <sys/types.h>
                     10: #include <sys/socket.h>
                     11: #include <sys/time.h>
                     12: #include <sys/un.h>
                     13: #include <sys/resource.h>
                     14: 
                     15: struct sockaddr_un sun;
                     16: struct sockaddr_un myname;
                     17: 
                     18: int    catchsig();
                     19: char   *malloc();
                     20: 
                     21: main(argc, argv)
                     22:        char *argv[];
                     23: {
                     24:        register char *buf;
                     25:        register int i, msgs = 0;
                     26:        int msglen = 0, ms;
                     27:        int pid, s, sunlen;
                     28: 
                     29:        if (argc < 3) {
                     30:                printf("usage: %s #msgs msglen\n", argv[0]);
                     31:                exit(1);
                     32:        }
                     33:        msgs = atoi(argv[1]);
                     34:        msglen = atoi(argv[2]);
                     35:        buf = malloc(msglen);
                     36:        if (buf == 0) {
                     37:                printf("Couldn't allocate data buffer\n");
                     38:                exit(1);
                     39:        }
                     40:        myname.sun_family = AF_UNIX;
                     41:        signal(SIGINT, catchsig);
                     42:        s = socket(AF_UNIX, SOCK_DGRAM, 0);
                     43:        if (s < 0) {
                     44:                perror("socket");
                     45:                exit(1);
                     46:        }
                     47:        sprintf(myname.sun_path, "unixdg%d", getpid());
                     48:        sunlen = strlen(myname.sun_path) + 2;
                     49:        if (bind(s, &myname, sunlen) < 0) {
                     50:                perror("bind");
                     51:                exit(1);
                     52:        }
                     53:        for (i = 0; i < msgs; i++) {
                     54:                sunlen = strlen(myname.sun_path) + 2;
                     55:                if (sendto(s, buf, msglen, 0, &myname, sunlen) < 0)
                     56:                        perror("sendto (parent)");
                     57:                if (recvfrom(s, buf, msglen, 0, &sun, &sunlen) < 0)
                     58:                        perror("recvfrom (parent)");
                     59:        }
                     60:        close(s);
                     61:        unlink(myname.sun_path);
                     62: }
                     63: 
                     64: catchsig(s)
                     65:        int s;
                     66: {
                     67: 
                     68:        unlink(myname.sun_path);
                     69:        exit(1);
                     70: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.