#include <sys/param.h>

#include <stdio.h>
#include <string.h>

int fifo(int argc, char *argv[]);
int memlock(int argc, char *argv[]);
int p26(int argc, char *argv[]);
int sched(int argc, char *argv[]);
int yield(int argc, char *argv[]);

static struct {
        const char *t;
        int (*f)(int, char *[]);
        int works;
} tab[] = {
        { "fifo", fifo, 1 },
        { "memlock", memlock, 0 },
        { "p26", p26, 1 },
        { "sched", sched, 1 },
        { "yield", yield, 1 },
};

static int usage(int argc, char *argv[])
{
        int i;
        if (argc > 1)
                fprintf(stderr, "%s is unknown\n", argv[1]);

        fprintf(stderr, "usage: %s [-a] or one of [", argv[0]);
        for (i = 0; i < (sizeof(tab) / sizeof(tab[0])); i++)
                fprintf(stderr, "%s%s", (i)? " | " : "", tab[i].t);
        fprintf(stderr, "]\n");

        return -1;
}

int main(int argc, char *argv[])
{
        int i;

        if (argc == 2 && strcmp(argv[1], "-a") == 0) {
#if 1
                fprintf(stderr,
                        "-a should but doesn't really work"
                        " (my notes say \"because things detach\");\n"
                        "meanwhile do these individual tests and look"
                        " for a non-zero exit code:\n");
                for (i = 0; i < nitems(tab); i++)
                        if (tab[i].works)
                                fprintf(stderr, "p1003_1b %s\n", tab[i].t);
                return -1;
#else
                {
                        int r;
                        for (i = 0; i < nitems(tab); i++) {
                                if (tab[i].works) {
                                        if ( (r =
                                        (*tab[i].f)(argc - 1, argv + 1)) ) {
                                                fprintf(stderr,
                                                "%s failed\n", tab[i].t);
                                                return r;
                                        }
                                }
                        }
                        return 0;
                }
#endif
        }
        
        if (argc > 1) {
                for (i = 0; i < nitems(tab); i++)
                        if (strcmp(tab[i].t, argv[1]) == 0)
                                return (*tab[i].f)(argc - 1, argv + 1);
        }

        return usage(argc, argv);
}