moved retry logic into multi instead of the connection itself

Update tests/data/Makefile.am

Co-authored-by: Viktor Szakats <vszakats@users.noreply.github.com>

Apply suggestions from code review

whitespace stuff

Co-authored-by: Viktor Szakats <vszakats@users.noreply.github.com>

more whitspace fixes

more docs changed

pull request fixes

(note that CI requires that symbols-in-versions be something that it should not be)

moving to new curl version

better documentation

try and see maybe  async is destroyed properly now?

removed whitespace

Co-authored-by: Viktor Szakats <vszakats@users.noreply.github.com>

Update docs/libcurl/opts/CURLOPT_ALTSVC_CTRL.md

"-" uses insteadvof space

Co-authored-by: Viktor Szakats <vszakats@users.noreply.github.com>

better handeling of the recovering and checking whether or not to recover

tests/data/Makefile.am

@@ -281,8 +281,7 @@ test3200 test3201 test3202 test3203 test3204 test3205 test3207 test3208 \
 test3209 test3210 test3211 test3212 test3213 test3214 test3215 \
 test3209 test3210 test3211 test3212 test3213 test3214 \
 \
-test3300 test3301 test3302 test3303\
-\
+test3300 test3301 test3302 test3303 \
 test4000 test4001
 
 EXTRA_DIST = $(TESTCASES) DISABLED

tests/data/test3301

@@ -0,0 +1,86 @@
+<testcase>
+<info>
+<keywords>
+HTTP
+HTTP GET
+HTTP proxy
+</keywords>
+</info>
+
+#
+# Server-side
+
+<reply>
+<data nocheck="yes">
+HTTP/1.1 200 OK
+Unknown-header: blrub
+Content-Length: 6
+
+-foo-
+</data>
+
+<servercmd>
+connection-monitor
+</servercmd>
+</reply>
+
+#
+# Client-side
+<client>
+<features>
+proxy
+alt-svc
+Debug
+</features>
+<setenv>
+# make debug-curl accept Alt-Svc over plain HTTP
+CURL_ALTSVC_HTTP="yeah"
+</setenv>
+
+<server>
+http
+</server>
+
+<name>
+alt-svc fail via proxy
+</name>
+
+<command>
+--proxy http://%HOSTIP:%HTTPPORT --alt-svc "%LOGDIR/altsvc-%TESTNUMBER" http://test.remote.haxx.se.%TESTNUMBER:8990
+</command>
+<file name="%LOGDIR/altsvc-%TESTNUMBER">
+h1 test.remote.haxx.se.%TESTNUMBER 8990 h1 %HOSTIP %NOLISTENPORT "20290222 22:19:28" 0 0
+</file>
+
+<features>
+proxy
+</features>
+</client>
+
+#
+# Verify data after the test has been "shot"
+<verify>
+<stdout>
+HTTP/1.1 200 OK
+Unknown-header: blrub
+Content-Length: 6
+
+-foo-
+</stdout>
+<protocol>
+CONNECT %HOSTIP:%NOLISTENPORT HTTP/1.1
+Host: %HOSTIP:%NOLISTENPORT
+User-Agent: curl/%VERSION
+Proxy-Connection: Keep-Alive
+
+[DISCONNECT]
+GET http://test.remote.haxx.se.%TESTNUMBER:8990/ HTTP/1.1
+Host: test.remote.haxx.se.%TESTNUMBER:8990
+User-Agent: curl/%VERSION
+Accept: */*
+Proxy-Connection: Keep-Alive
+
+[DISCONNECT]
+</protocol>
+</verify>
+</testcase>