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curl_easy_pause.3: mention h2/h3 buffering

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Asked-by: Maxim Dzhura
Ref: https://curl.se/mail/lib-2023-10/0011.html

Closes #12045
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Daniel Stenberg 2023-10-06 09:11:57 +02:00
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docs/libcurl/curl_easy_pause.3
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@ -106,6 +106,11 @@ effect that if you download something that is compressed a lot, it can result
in a large data amount needing to be allocated to save the data during the
pause. consider not using paused receiving if you allow libcurl to uncompress
data automatically.
If the download is done with HTTP/2 or HTTP/3, there is up to a stream window
size worth of data that curl cannot stop but instead needs to cache while the
transfer is paused. This means that if a window size of 64 MB is used, libcurl
might end up having to cache 64 MB of data.
.SH AVAILABILITY
Added in 7.18.0.
.SH RETURN VALUE