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uvadapter: reduce number of uv_poll_start calls 

Internally uv_poll_start iterates over all
attached event handlers to update event mask. It's
quite expensive operation if there many event handlers attached
to a loop.
As redisLibuvEvents.events is a copy of what libuv should see,
we can rely on it to avoid event mask updates.

Signed-off-by: Anton Tiurin <noxiouz@yandex.ru>
master
Anton Tiurin 2021-01-03 18:01:44 +00:00 committed by Michael Grunder
parent 35d398c903
commit ca4a0e850b
1 changed files with 8 additions and 0 deletions
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8
adapters/libuv.h
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@ -30,6 +30,10 @@ static void redisLibuvPoll(uv_poll_t* handle, int status, int events) {
static void redisLibuvAddRead(void *privdata) {
redisLibuvEvents* p = (redisLibuvEvents*)privdata;
if (p->events & UV_READABLE) {
return;
}
p->events |= UV_READABLE;
uv_poll_start(&p->handle, p->events, redisLibuvPoll);
@ -52,6 +56,10 @@ static void redisLibuvDelRead(void *privdata) {
static void redisLibuvAddWrite(void *privdata) {
redisLibuvEvents* p = (redisLibuvEvents*)privdata;
if (p->events & UV_WRITABLE) {
return;
}
p->events |= UV_WRITABLE;
uv_poll_start(&p->handle, p->events, redisLibuvPoll);