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

1.1       root        1: /*
                      2:  * Signal without context switch benchmark.
                      3:  */
                      4: #include <signal.h>
                      5: 
                      6: int    pid;
                      7: int    nsigs;
                      8: int    sigsub();
                      9: 
                     10: main(argc, argv)
                     11:        char *argv[];
                     12: {
                     13:        register int i;
                     14: 
                     15:        if (argc < 2) {
                     16:                printf("usage: %s nsignals\n", argv[0]);
                     17:                exit(1);
                     18:        }
                     19:        nsigs = atoi(argv[1]);
                     20:        signal(SIGALRM, sigsub);
                     21:        pid = getpid();
                     22:        for (i = 0; i < nsigs; i++)
                     23:                kill(pid, SIGALRM);
                     24: }
                     25: 
                     26: sigsub()
                     27: {
                     28:        static mustreset = 1;
                     29:        int (*osig)();
                     30: 
                     31:        if (mustreset) {
                     32:                osig = signal(SIGALRM, sigsub);
                     33:                if (osig == sigsub)
                     34:                        mustreset = 0;
                     35:        }
                     36: }

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