crossbeam-channel | Multi-producer multi-consumer channels for message passing | Pub Sub library
kandi X-RAY | crossbeam-channel Summary
kandi X-RAY | crossbeam-channel Summary
Multi-producer multi-consumer channels for message passing
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crossbeam-channel Examples and Code Snippets
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Trending Discussions on crossbeam-channel
QUESTION
I am trying to pass enum type data to a thread using channels in Rust, but I keep getting the following error when I run the program (it compiles fine),
thread 'thread 'main' panicked at '' panicked at 'attempted to leave type
internal::Local
uninitialized, which is invalid. Attempted to leave typeinternal::Local
uninitialized, which is invalid'
Here is the code snippet,
...ANSWER
Answered 2022-Mar-27 at 05:55In short: this error shows the unsoundness in an old crossbeam
version, you must update it for your code to work.
If we run the code from OP with RUST_BACKTRACE=1
, we'll see the following:
QUESTION
Please is there a way for sender to delete pending messages sent to mpsc channel (or crossbeam-channel or equivalent) which have not been consumed by the receiver yet? Something like sender.deleteAllPending()
.
ANSWER
Answered 2021-Dec-19 at 07:00You can't do that with mspc which is "single consumer".
With crossbeam, you can have multiple receivers. So you can clone and keep a receiver "sender side", so you can drain it.
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Install crossbeam-channel
Rust is installed and managed by the rustup tool. Rust has a 6-week rapid release process and supports a great number of platforms, so there are many builds of Rust available at any time. Please refer rust-lang.org for more information.
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