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Unexpected timeouts #3305
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Unexpected timeouts #3305
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bagder
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Nov 24, 2018
curl_multi_wait() was erroneously used from within curl_easy_perform(). It could lead to it believing there was no socket to wait for and then instead sleep for a while instead of monitoring the socket and then miss acting on that activity as swiftly as it should (causing an up to 1000 ms delay). Reported-by: Antoni Villalonga Fixes #3305 Clodes #3306
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Hi,
I did this
I have a simple URL that takes some time before reply.
For example: "http://127.0.0.1/sleep.php?sleep=5.3" will took 5.3 seconds.
I also have a small program based on (https://curl.haxx.se/libcurl/c/simple.html).
Basically I've changed the URL and added timeout control:
curl_easy_setopt(curl, CURLOPT_TIMEOUT, 6L);Or (tested both with same results):
curl_easy_setopt(curl, CURLOPT_TIMEOUT_MS, 6*1000);When I run the program it raises a timeout error after 6 seconds of execution.
curl_easy_perform() failed: Timeout was reachedI expected the following
Timeout should not be raised when the client receives the response before the specified timeout option.
curl/libcurl version
After some work, I've found the problem starts with this commit, merged before 7.61.0:
3ef67c6
operating system
Linux 4.18.0-2-amd64 (Debian based)