We added the code to trace all the contins linked to a particular
Lockvoker, into SerializedAsyncContinuation. This basically
ensures that we'll almost never deal with a deadlock. So cool.
CONT_SET_EXC: Set exception on the continuation, to be rethrown
by the caller.
CONT_SET_EXC_AND_RET: Convenience which returns immediately
after setting the exception.
Implements: LockSet, SerializedAsynchronousContinuation,
LockerAndInvoker, LockerAndInvokerBase, Qutex.
Very big leap in functionality here. See qutexes.md for
an explanation of what we've done.
Async: Use new [Non]PostedAsyncCont and callOriginalCb
This new hierarchy of classes gives us a central mechanism for
managing both reply-posting and lockSpec unlocking.
* callOriginalCb: Now uses a modern C++ variadic template design
enabling it to handle both direct calling and std::bind()
re-binding of an arbitrary number of arguments from the caller.
This enables us to mostly eliminate the repeated, bespoke
definitions of callOriginalCb littered throughout the codebase.
We've also propagated these changes throughout the codebase in
this patch.
This class enables us to consistently represent continuations
that are intended to be posted on a particular target handling
thread. It hols a sh_ptr to the caller so that the target thread
can re-enqueue the response on the caller after processing the
REQ/IND op.
hayodea