multiplexer: fix consume of too many bytes

apache / trafficserver

Apache Traffic Server™ is a fast, scalable and extensible HTTP/1.1 and HTTP/2 compliant caching proxy server.

https://trafficserver.apache.org/

Apache License 2.0

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multiplexer: fix consume of too many bytes #11499

Open bneradt opened 4 days ago

bneradt commented 4 days ago

IOBufferReader::consume contractually assumes that all callers of it will not consume more bytes than read_avail for the buffer chain. This adds a debug assertion for this and fixes multiplexer so that it doesn't violate this invariant.