[BUG] Check what curl_slist_append and curl_multi_init return - #4406

Draft

thc1006 wants to merge 38 commits into

open-telemetry:mainfrom

thc1006:bugfix/check-curl-allocation-failures-4404

Commits on Aug 15, 2026

[BUG] Check what curl_slist_append and curl_multi_init return
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553b948
[TEST] Make the allocation failure case independent of the libcurl in use
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6872752
[TEST] Hold what a client without a multi handle does with a request
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6e5a495
[TEST] Cover the synchronous refusal and the instrumented constructor
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59f550d
[BUG] Stop the IO thread spinning when the multi handle cannot be created
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a1f3419
[TEST] Take the include set include-what-you-use asks for
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bc3dc07
[BUG] Stop the IO thread spinning while it has no multi handle
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d903452
[BUG] Create the multi handle after curl_global_init has run
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fe0d1ce
[TEST] Describe what the case holds rather than what it used to find
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be0d3fd
[BUG] Wait in slices, and keep the null handle out of curl_multi_info_read
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7599add
[BUG] Keep the phases that need a multi handle from running without one
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6dfd4b1
[BUG] Report the missing handle wait as a wait
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3abb874
[CHORE] Say each invariant once in the comments
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6e392a9
[TEST] Hold the phase gate with a request queued during the outage
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b0e33af
[BUG] Refuse a request whose easy handle was never created
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3e6063b
[BUG] Do not retire the IO thread while a queue still holds work
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051fe74
Revert "[BUG] Do not retire the IO thread while a queue still holds work"
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ff09136
[BUG] Describe a failed easy handle once, and ask the case for once
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5ca9dab
[BUG] Keep the IO thread while it still owes somebody an answer
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f7eaebc
[BUG] Do not call a multi function without a multi handle
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e2331e3
[TEST] Build the client without a multi handle rather than taking one away
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7811a6f
[BUG] Release what is still queued when the client goes
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14cd974
[BUG] Take out of the retry queue what is not going to be retried
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f09ff47
[TEST] Do not let a case leave global state behind it
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b98ef29
[TEST] Fail the second list node, not just the first
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fe21650
Say in the changelog what else this fixes
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acc4205
[TEST] Destroy the client with a retry still pending, and nobody cancelling
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5c89d79
[TEST] Watch the retry from outside the client, not from inside its queue
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c3e8fac
[CHORE] Say what the code does, and let the cases outlive what talks to them
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6d505f3
Take the include include-what-you-use asks for
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b54e01a
Take the other include include-what-you-use asks for
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e37fbf3
[TEST] Refuse a header append by name, not by allocation size
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f6a3700
[BUG] Ask one question about a retry entry, from both places that ask it
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a5ea615
[BUG] Do not retire on a queue that filled up while this thread was draining it
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3de8ca2

Commits on Aug 16, 2026

[BUG] Report a failed multi cleanup after the mutex, not under it
thc1006
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6098d3e

Commits on Aug 26, 2026

[TEST] Cover the TLS version range and cipher list that Setup() applies
thc1006
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fb70655

Commits on Aug 27, 2026