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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## master #19708 +/- ##
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Coverage 98.55% 98.55%
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Files 182 182
Lines 23335 23335
Branches 5 5
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Hits 22998 22998
Misses 336 336
Partials 1 1
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tcp_sndbuf counts bytes, so it can report room while the segment or heap pool is exhausted and tcp_write returns ERR_MEM. lwip_tcp_send then waited in its retry loop for up to 10 seconds even for a non-blocking socket, stalling a single-threaded event loop. Nothing is queued on ERR_MEM, so a non-blocking socket can return EAGAIN there, as it already does when tcp_sndbuf is 0. Blocking sockets are unchanged. Fixes issue micropython#19704. Signed-off-by: Tejas Nagmote <[email protected]>
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See #19705. |
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tcp_sndbuf counts bytes, so it can report room while the segment or heap pool is exhausted and tcp_write returns ERR_MEM. lwip_tcp_send then waited in its retry loop for up to 10 seconds even for a non-blocking socket, stalling a single-threaded event loop.
Nothing is queued on ERR_MEM, so a non-blocking socket can return EAGAIN there, as it already does when tcp_sndbuf is 0. Blocking sockets are unchanged.
Fixes issue #19704.
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