void tube_delete(struct tube* tube)
{
if(!tube) return;
tube_remove_bg_listen(tube);
tube_remove_bg_write(tube);
/* close fds after deleting commpoints, to be sure.
* Also epoll does not like closing fd before event_del */
tube_close_read(tube);
tube_close_write(tube);
free(tube);
}
void tube_delete(struct tube* tube)
{
if(!tube) return;
tube_remove_bg_listen(tube);
tube_remove_bg_write(tube);
tube_close_read(tube);
tube_close_write(tube);
if(!WSACloseEvent(tube->event))
log_err("WSACloseEvent: %s", wsa_strerror(WSAGetLastError()));
lock_basic_destroy(&tube->res_lock);
verbose(VERB_ALGO, "tube deleted");
free(tube);
}
/** the background thread func */
static void*
libworker_dobg(void* arg)
{
/* setup */
uint32_t m;
struct libworker* w = (struct libworker*)arg;
struct ub_ctx* ctx;
if(!w) {
log_err("libunbound bg worker init failed, nomem");
return NULL;
}
ctx = w->ctx;
log_thread_set(&w->thread_num);
#ifdef THREADS_DISABLED
/* we are forked */
w->is_bg_thread = 0;
/* close non-used parts of the pipes */
tube_close_write(ctx->qq_pipe);
tube_close_read(ctx->rr_pipe);
#endif
if(!tube_setup_bg_listen(ctx->qq_pipe, w->base,
libworker_handle_control_cmd, w)) {
log_err("libunbound bg worker init failed, no bglisten");
return NULL;
}
if(!tube_setup_bg_write(ctx->rr_pipe, w->base)) {
log_err("libunbound bg worker init failed, no bgwrite");
return NULL;
}
/* do the work */
comm_base_dispatch(w->base);
/* cleanup */
m = UB_LIBCMD_QUIT;
w->want_quit = 1;
tube_remove_bg_listen(w->ctx->qq_pipe);
tube_remove_bg_write(w->ctx->rr_pipe);
libworker_delete(w);
(void)tube_write_msg(ctx->rr_pipe, (uint8_t*)&m,
(uint32_t)sizeof(m), 0);
#ifdef THREADS_DISABLED
/* close pipes from forked process before exit */
tube_close_read(ctx->qq_pipe);
tube_close_write(ctx->rr_pipe);
#endif
return NULL;
}
