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util.poll: Return early if given zero timeout and no pending events

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Should have been part of f33887f925e1 to ensure it won't skip processing
timers at all when very busy.
This commit is contained in:
Kim Alvefur 2023-11-21 17:43:46 +01:00
parent 43d1285dbd
commit c8e2129a82
1 changed files with 6 additions and 0 deletions
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6
util-src/poll.c
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@ -411,6 +411,12 @@ static int Lwait(lua_State *L) {
lua_Number timeout = luaL_checknumber(L, 2);
luaL_argcheck(L, timeout >= 0, 1, "positive number expected");
if(timeout == 0.0) {
lua_pushnil(L);
lua_pushstring(L, "timeout");
return 2;
}
#ifdef USE_EPOLL
ret = epoll_wait(state->epoll_fd, state->events, MAX_EVENTS, timeout * 1000);
#endif