Comments (5)
Note that there are some experimental implementations of the task, async_generator and recursive_generator that use the symmetric transfer facility in the https://github.com/lewissbaker/cppcoro/tree/tailcall branch
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PR #91 has merged support for symmetric-transfer on compilers that support it.
It's currently conditionally compiled in with #if CPPCORO_COMPILER_SUPPORTS_SYMMETRIC_TRANSFER
which is currently only defined for Clang.
Once we have a version of MSVC that supports this we can switch to this implementation for MSVC too.
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It's unclear to me whether the latest MSVC versions support this by now or not. I have not tried yet with cppcoro but wrote my own promise and task classes. With MSVC 16.5, I am able to return std::coroutine_handle
from await_suspend
but I am still running into stack overflows when repeated co_awaits finish synchronously. I guess the feature may only be partially supported right now (tail calls are not guaranteed yet)?
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from cppcoro.
Yes. The front-end part was implemented, but, back end is not (hence the stack overflow). It is scheduled to be done soon-ish
Thanks for the clarification. Looking forward to seeing it fully supported.
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Related Issues (20)
- Question: task lifecycle and final_suspend
- net/ipv4_address.hpp bug
- single_producer_sequencer sample code appears broken
- Cooperative multi-task / event loop with co_await HOT 1
- build system HOT 4
- Bug Report: the port of socket is incorrect when I use socket.bind(...) HOT 1
- async_mutex::unlock() behavior should be better documented HOT 2
- How is the performance of the socket module?
- Does anyone still maintain this library under their own branch? HOT 11
- Data race, detected by tsan
- - HOT 1
- C1189 #error: The <experimental/coroutine> and <experimental/resumable> headers are only supported with /await and implement pre-C++20 coroutine support. Use <coroutine> for standard C++20 coroutines. HOT 1
- Doctest included in the project is no longer compatible with newer glibc
- fatal error: 'stddef.h' file not found HOT 1
- Failed to build on my Windows box HOT 1
- Define CPPCORO_COMPILER_SUPPORTS_SYMMETRIC_TRANSFER for gcc and modern MSVC HOT 1
- Split list of awaiters in multi_producer_sequencer::add_awaiter
- [Enhancement] vector<bool>'s co_resource
- Add Examples
- Cancellation deadlock
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