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time-keeping: keep timestamp in multi, always update

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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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14
lib/transfer.c
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@ -261,7 +261,7 @@ static CURLcode sendrecv_dl(struct Curl_easy *data,
if(bytestoread && Curl_rlimit_active(&data->progress.dl.rlimit)) {
curl_off_t dl_avail = Curl_rlimit_avail(&data->progress.dl.rlimit,
&data->progress.now);
Curl_pgrs_now(data));
/* DEBUGF(infof(data, "dl_rlimit, available=%" FMT_OFF_T, dl_avail));
*/
/* In case of rate limited downloads: if this loop already got
@ -399,15 +399,15 @@ CURLcode Curl_sendrecv(struct Curl_easy *data)
failf(data, "Operation timed out after %" FMT_TIMEDIFF_T
" milliseconds with %" FMT_OFF_T " out of %"
FMT_OFF_T " bytes received",
curlx_timediff_ms(data->progress.now,
data->progress.t_startsingle),
curlx_ptimediff_ms(Curl_pgrs_now(data),
&data->progress.t_startsingle),
k->bytecount, k->size);
}
else {
failf(data, "Operation timed out after %" FMT_TIMEDIFF_T
" milliseconds with %" FMT_OFF_T " bytes received",
curlx_timediff_ms(data->progress.now,
data->progress.t_startsingle),
curlx_ptimediff_ms(Curl_pgrs_now(data),
&data->progress.t_startsingle),
k->bytecount);
}
result = CURLE_OPERATION_TIMEDOUT;
@ -903,7 +903,7 @@ bool Curl_xfer_recv_is_paused(struct Curl_easy *data)
CURLcode Curl_xfer_pause_send(struct Curl_easy *data, bool enable)
{
CURLcode result = CURLE_OK;
Curl_rlimit_block(&data->progress.ul.rlimit, enable, &data->progress.now);
Curl_rlimit_block(&data->progress.ul.rlimit, enable, Curl_pgrs_now(data));
if(!enable && Curl_creader_is_paused(data))
result = Curl_creader_unpause(data);
Curl_pgrsSendPause(data, enable);
@ -913,7 +913,7 @@ CURLcode Curl_xfer_pause_send(struct Curl_easy *data, bool enable)
CURLcode Curl_xfer_pause_recv(struct Curl_easy *data, bool enable)
{
CURLcode result = CURLE_OK;
Curl_rlimit_block(&data->progress.dl.rlimit, enable, &data->progress.now);
Curl_rlimit_block(&data->progress.dl.rlimit, enable, Curl_pgrs_now(data));
if(!enable && Curl_cwriter_is_paused(data))
result = Curl_cwriter_unpause(data);
Curl_conn_ev_data_pause(data, enable);