multi: make Curl_expire() work with 0 ms timeouts

Previously, passing a timeout of zero to Curl_expire() was a magic code
for clearing all timeouts for the handle. That is now instead made with
the new Curl_expire_clear() function and thus a 0 timeout is fine to set
and will trigger a timeout ASAP.

This will help removing short delays, in particular notable when doing
HTTP/2.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/url.c b/lib/url.c
index e547e5c16..da48da6b9 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -405,7 +405,7 @@ CURLcode Curl_close(struct Curl_easy *data)
   if(!data)
     return CURLE_OK;
 
-  Curl_expire(data, 0); /* shut off timers */
+  Curl_expire_clear(data); /* shut off timers */
 
   m = data->multi;