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core: Delayed deserialization for unary/server-streaming calls (v1.84.x backport) - #13098
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kannanjgithub merged 1 commit intoOct 8, 2026
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…13004) For calls where the client sends at most one message (Unary and Server Streaming), the incoming message is deserialized immediately but there can be a delay before the client halfcloses, only at which point in time the the deserialized message is needed . This change delays the deserialization of incoming messages for such calls until the client actually half-closes the stream (sends END_STREAM). If the call is cancelled before half-close, the buffered raw message is discarded without being deserialized.
shivaspeaks
approved these changes
Oct 8, 2026
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Backport of #13004 to v1.84.x.
For calls where the client sends at most one message (Unary and Server Streaming), the incoming message is deserialized immediately but there can be a delay before the client halfcloses, only at which point in time the the deserialized message is needed . This change delays the deserialization of incoming messages for such calls until the client actually half-closes the stream (sends END_STREAM).
If the call is cancelled before half-close, the buffered raw message is discarded without being deserialized.