static void lluv_on_process_exit(uv_process_t* arg, int64_t exit_status, int term_signal){
lluv_handle_t *handle = lluv_handle_byptr((uv_handle_t*)arg);
lua_State *L = LLUV_HCALLBACK_L(handle);
LLUV_CHECK_LOOP_CB_INVARIANT(L);
if(!IS_(handle, OPEN)){
lluv_handle_unlock(L, handle, LLUV_LOCK_EXIT);
LLUV_CHECK_LOOP_CB_INVARIANT(L);
return;
}
lua_rawgeti(L, LLUV_LUA_REGISTRY, LLUV_EXIT_CB(handle));
lluv_handle_pushself(L, handle);
lluv_handle_unlock(L, handle, LLUV_LOCK_EXIT);
if(lua_isnil(L, -2)){
lua_pop(L, 2);
LLUV_CHECK_LOOP_CB_INVARIANT(L);
return;
}
lua_pushnil(L);
lutil_pushint64(L, exit_status);
lutil_pushint64(L, term_signal);
LLUV_HANDLE_CALL_CB(L, handle, 4);
LLUV_CHECK_LOOP_CB_INVARIANT(L);
}
static void lluv_on_udp_recv_cb(uv_udp_t *arg, ssize_t nread, const uv_buf_t* buf, const struct sockaddr* addr, unsigned flags){
lluv_handle_t *handle = lluv_handle_byptr((uv_handle_t*)arg);
lua_State *L = LLUV_HCALLBACK_L(handle);
LLUV_CHECK_LOOP_CB_INVARIANT(L);
if((nread == 0) && (addr == NULL)){
/*
** The receive callback will be called with
** nread == 0 and addr == NULL when there is
** nothing to read
*/
lluv_free_buffer((uv_handle_t*)arg, buf);
return;
}
lua_rawgeti(L, LLUV_LUA_REGISTRY, LLUV_READ_CB(handle));
assert(!lua_isnil(L, -1));
lluv_handle_pushself(L, handle);
if(nread >= 0){
assert(addr);
lua_pushnil(L);
lua_pushlstring(L, buf->base, nread);
lluv_free_buffer((uv_handle_t*)arg, buf);
}
else{
lluv_free_buffer((uv_handle_t*)arg, buf);
/* The callee is responsible for stopping closing the stream
* when an error happens by calling uv_read_stop() or uv_close().
* Trying to read from the stream again is undefined.
*/
uv_udp_recv_stop(arg);
luaL_unref(L, LLUV_LUA_REGISTRY, LLUV_READ_CB(handle));
LLUV_READ_CB(handle) = LUA_NOREF;
lluv_error_create(L, LLUV_ERR_UV, (uv_errno_t)nread, NULL);
lua_pushnil(L);
lluv_handle_unlock(L, handle, LLUV_LOCK_READ);
}
lua_pushinteger(L, flags);
LLUV_HANDLE_CALL_CB(L, handle, 4 + lluv_push_addr(L, (const struct sockaddr_storage*)addr));
LLUV_CHECK_LOOP_CB_INVARIANT(L);
}
static void lluv_on_signal_start(uv_signal_t *arg, int signum){
lluv_handle_t *handle = lluv_handle_byptr((uv_handle_t*)arg);
lua_State *L = LLUV_HCALLBACK_L(handle);
LLUV_CHECK_LOOP_CB_INVARIANT(L);
lua_rawgeti(L, LLUV_LUA_REGISTRY, LLUV_START_CB(handle));
assert(!lua_isnil(L, -1)); /* is callble */
lluv_handle_pushself(L, handle);
lua_pushinteger(L, signum);
LLUV_HANDLE_CALL_CB(L, handle, 2);
LLUV_CHECK_LOOP_CB_INVARIANT(L);
}