bool stdin_fd_tracker_is_stdin(int target) {
pthread_mutex_lock(&storage_mutex);
intset_t* fds = get_storage();
bool is = intset_contains(fds, target);
pthread_mutex_unlock(&storage_mutex);
return is;
}
void stdin_fd_tracker_did_close(int target) {
pthread_mutex_lock(&storage_mutex);
intset_t* fds = get_storage();
if (intset_contains(fds, target)) {
D("removing %d\n as dup of stdin", target);
remove_from_intset(fds, target);
}
pthread_mutex_unlock(&storage_mutex);
}
void stdin_fd_tracker_did_dup(int orig, int dup) {
pthread_mutex_lock(&storage_mutex);
intset_t* fds = get_storage();
if (intset_contains(fds, orig)) {
D("adding %d as dup of %d\n", dup, orig);
add_to_intset(fds, dup);
}
pthread_mutex_unlock(&storage_mutex);
}
void add_to_intset(intset_t* is, int i) {
if (intset_contains(is, i) == false) {
if (is->capacity == is->size) {
is->capacity += grow_factor;
is->ints = realloc(is->ints, is->capacity);
if (is->ints == NULL) die("reallocation of ints failed");
}
is->ints[is->size++] = i;
}
}