This release builds on the multi-fd-wait feature and adds PollAndWait functions.

Adds a facility to add multiple coroutines to the same epoll fd.

Fixes an issue with epoll where an interrupt fd can cause a nullptr.

This provides a custom assembly language context switcher for coroutines.

It is faster than the Linux user contexts and safer than setjmp/longjmp. It is supported only on x86_64 and aarch64 architectures. User contexts and setjmp/longjmp are still supported and can be selected if necessary by modifying the macros in coroutine.h

This is a tag from a feature branch that provides custom contexts functions that are higher performance than the setjmp/longjmp or the Linux user-context based versions.

Both x86_64 and Aarch64 version of the context switching code are available.

Fixed epoll support and, of course, broke poll support

Minor changes for epoll support

This enables the use of the linux-specific epoll function on Linux by default.

If this doesn't work for you, you can switch it off by changing the POLL_MODE macro in coroutine.h

Fixes timerfd calculations on linux

Very minor update to provide a convenience constructor for a coroutine that allows the name and stack size to be specified easier.