int main(int argc, char *argv[])
{
char *name;
/* size must be provided, and an optional logring name */
if (argc != 2 && argc != 3) {
fprintf(stderr, "usage: %s <logring-size> [logring-name]\n", argv[0]);
exit(1);
}
name = (argc == 3 ? argv[2] : "/dev/logring");
/* convert the arg to an int and alloc memory for the logring */
if ((logring_size = atoi(argv[1])) <= 0) {
fprintf(stderr, "invalid logring size; it must be >0\n");
exit(1);
}
if ((logring_data = (char *) malloc(sizeof(char) * logring_size)) == NULL) {
fprintf(stderr, "couldn't allocate %d bytes!\n", logring_size);
exit(1);
}
/* register the fusd device */
fusd_simple_register(name, "misc", "logring", 0666, NULL,
open: logring_open, close: logring_close,
read: logring_read, write: logring_write,
poll_diff: logring_polldiff);
printf("calling fusd_run; reads from /dev/logring will now block\n"
"until someone writes to /dev/logring...\n");
fusd_run();
return 0;
}
int main(int argc, char *argv[])
{
if (fusd_register("/dev/echo", "misc", "echo", 0666, NULL, &echo_fops) < 0) {
perror("register of /dev/echo failed");
exit(1);
}
fprintf(stderr, "calling fusd_run...\n");
fusd_run();
return 0;
}