Probably not complete, but an overview of what I have in mind -- read the notes in the file.
I don't agree with the notes about Suspend/Resume. Suspending a thread on POSIX is possible, as long as you define what "suspending" means. Assuming a "suspended" thread is a thread that doesn't execute application code, forcing the target thread to wait on a mutex would be enough, IMHO (on a side note, this is how some third party extensions for Windows implement SIGSTOP semantics). Don't be too quick about dismissing "suspending" as "non-portable": condition variables and thread canceling were thought as *impossible* to implement on Win32, before RedHat successfully implemented the POSIX threads interface on Win32
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