core: improve connection error strings, fix threading issue#2678
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core: improve connection error strings, fix threading issue#2678
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This cleans up the messages for connection errors, mostly on Windows. This also fixes a recent regression on Linux leading to thread sanitizer issues.
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Curious now: what was the thread sanitizer issue about? |
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The previous PR changed the way the return value and errno variables were used, so the logic was broken. |
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This cleans up the messages for connection errors, mostly on Windows. This also fixes a recent regression on Linux leading to thread sanitizer issues.
Cleanup after #2662.
Fixes #2675.