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http2: Add handling stream level error

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Previously, when a stream was closed with other than NGHTTP2_NO_ERROR
by RST_STREAM, underlying TCP connection was dropped.  This is
undesirable since there may be other streams multiplexed and they are
very much fine.  This change introduce new error code
CURLE_HTTP2_STREAM, which indicates stream error that only affects the
relevant stream, and connection should be kept open.  The existing
CURLE_HTTP2 means connection error in general.

Ref: https://github.com/curl/curl/issues/659
Ref: https://github.com/curl/curl/pull/663
This commit is contained in:
Tatsuhiro Tsujikawa 2016-02-17 21:36:59 +09:00 • committed by Jay Satiro
parent b2a0376350
commit 92c2a4c053
7 changed files with 20 additions and 2 deletions
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3
lib/multi.c
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@ -1880,7 +1880,8 @@ static CURLMcode multi_runsingle(struct Curl_multi *multi,
* happened in the data connection.
*/
if(!(data->easy_conn->handler->flags & PROTOPT_DUAL))
if(!(data->easy_conn->handler->flags & PROTOPT_DUAL) &&
result != CURLE_HTTP2_STREAM)
connclose(data->easy_conn, "Transfer returned error");
Curl_posttransfer(data);