static void
create_and_free_provider(int argc, char **argv)
{
usdt_provider_t *provider;
usdt_probedef_t *probedef;
if ((provider = usdt_create_provider("testlibusdt", "modname")) == NULL) {
fprintf(stderr, "unable to create provider\n");
exit (1);
}
if ((probedef = usdt_create_probe((const char *)argv[1],
(const char *)argv[2],
(argc-3), (const char **)&argv[3])) == NULL)
{
fprintf(stderr, "unable to create probe\n");
exit (1);
}
usdt_provider_add_probe(provider, probedef);
if ((usdt_provider_enable(provider)) < 0) {
fprintf(stderr, "unable to enable provider: %s\n", usdt_errstr(provider));
exit (1);
}
if ((usdt_provider_disable(provider)) < 0) {
fprintf(stderr, "unable to disable provider: %s\n", usdt_errstr(provider));
exit (1);
}
usdt_probe_release(probedef);
usdt_provider_free(provider);
}
/**
* USDT::Provider#disable
*/
static VALUE provider_disable(VALUE self) {
usdt_provider_t *provider = DATA_PTR(self);
int status = usdt_provider_disable(provider);
if (status == 0) {
return Qtrue;
} else {
rb_raise(USDT_Error, "%s", usdt_errstr(provider));
}
}
/**
* USDT::Provider#probe(func, name, pargs*)
*/
static VALUE provider_probe(int argc, VALUE *argv, VALUE self) {
const char *func = rb_id2name(rb_to_id(argv[0]));
const char *name = rb_id2name(rb_to_id(argv[1]));
const char *types[USDT_ARG_MAX];
size_t i, pargc = 0;
size_t t_int = rb_intern("integer");
size_t t_str = rb_intern("string");
for (i = 0; i < USDT_ARG_MAX; i++) {
if (i < argc - 2) {
Check_Type(argv[i+2], T_SYMBOL);
if (t_int == rb_to_id(argv[i+2])) {
types[i] = "int";
pargc++;
} else if (t_str == rb_to_id(argv[i+2])) {
types[i] = "char *";
pargc++;
} else {
types[i] = NULL;
}
} else {
types[i] = NULL;
}
}
usdt_provider_t *provider = DATA_PTR(self);
usdt_probedef_t **probe;
probe = ALLOC(usdt_probedef_t *);
*probe = usdt_create_probe(func, name, pargc, types);
if ((usdt_provider_add_probe(provider, *probe) == 0)) {
VALUE rbProbe = Data_Wrap_Struct(USDT_Probe, NULL, free, probe);
return rbProbe;
}
else {
rb_raise(USDT_Error, "%s", usdt_errstr(provider));
}
}
