[issue40390] Implement a C API for channel_send_wait for subinterpreters.

Change by Benjamin Edwards : -- keywords: +patch pull_requests: +19038 stage: -> patch review pull_request: https://github.com/python/cpython/pull/19715 ___ Python tracker ___

[issue40390] Implement a C API for channel_send_wait for subinterpreters.

New submission from Benjamin Edwards : When sending a message to another interpreter allow the caller to wait until the message has been received. -- components: C API messages: 367280 nosy: benedwards14, eric.snow priority: normal severity: normal status: open title: Implement a C API