/* Path is interpreted as the directory containing the unix domain socket
* and broker pid.
*/
flux_t connector_init (const char *path, int flags)
{
ctx_t *c = NULL;
struct sockaddr_un addr;
char pidfile[PATH_MAX + 1];
char sockfile[PATH_MAX + 1];
int n, count;
if (!path) {
errno = EINVAL;
goto error;
}
n = snprintf (sockfile, sizeof (sockfile), "%s/local", path);
if (n >= sizeof (sockfile)) {
errno = EINVAL;
goto error;
}
n = snprintf (pidfile, sizeof (pidfile), "%s/broker.pid", path);
if (n >= sizeof (pidfile)) {
errno = EINVAL;
goto error;
}
if (!(c = malloc (sizeof (*c)))) {
errno = ENOMEM;
goto error;
}
memset (c, 0, sizeof (*c));
c->magic = CTX_MAGIC;
c->fd = socket (AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0);
if (c->fd < 0)
goto error;
c->fd_nonblock = -1;
for (count=0;;count++) {
if (count >= env_getint("FLUX_RETRY_COUNT", 5) || !pidcheck (pidfile))
goto error;
memset (&addr, 0, sizeof (struct sockaddr_un));
addr.sun_family = AF_UNIX;
strncpy (addr.sun_path, sockfile, sizeof (addr.sun_path) - 1);
if (connect (c->fd, (struct sockaddr *)&addr,
sizeof (struct sockaddr_un)) == 0)
break;
usleep (100*1000);
}
flux_msg_iobuf_init (&c->outbuf);
flux_msg_iobuf_init (&c->inbuf);
if (!(c->h = flux_handle_create (c, &handle_ops, flags)))
goto error;
return c->h;
error:
if (c) {
int saved_errno = errno;
op_fini (c);
errno = saved_errno;
}
return NULL;
}
uint32_t service_query(const char *name) {
return (uint32_t)env_getint(g.names, name);
}