time-keeping: keep timestamp in multi, always update

Always use curlx_now() when calling Curl_pgrs_now(data). Tests with the
"manual" updates to now proved differ more then 100ms in parallel testing.

Add `curlx_nowp()` to set current time into a struct curltime.
Add `curlx_ptimediff_ms() and friends, passing pointers.

Update documentation.

Closes #19998
This commit is contained in:
Stefan Eissing 2025-12-18 13:55:07 +01:00 committed by Daniel Stenberg
parent 308c347c8b
commit b4be1f271e
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GPG key ID: 5CC908FDB71E12C2
61 changed files with 471 additions and 502 deletions

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@ -1507,8 +1507,7 @@ static CURLcode telnet_do(struct Curl_easy *data, bool *done)
} /* switch */
if(data->set.timeout) {
Curl_pgrs_now_set(data);
if(curlx_timediff_ms(data->progress.now, conn->created) >=
if(curlx_ptimediff_ms(Curl_pgrs_now(data), &conn->created) >=
data->set.timeout) {
failf(data, "Time-out");
result = CURLE_OPERATION_TIMEDOUT;
@ -1627,8 +1626,7 @@ static CURLcode telnet_do(struct Curl_easy *data, bool *done)
} /* poll switch statement */
if(data->set.timeout) {
Curl_pgrs_now_set(data);
if(curlx_timediff_ms(data->progress.now, conn->created) >=
if(curlx_ptimediff_ms(Curl_pgrs_now(data), &conn->created) >=
data->set.timeout) {
failf(data, "Time-out");
result = CURLE_OPERATION_TIMEDOUT;