[boost] [thread] Is there interest in shared_lock_prioritized?

Subject: [boost] [thread] Is there interest in shared_lock_prioritized?
From: Antony Polukhin (antoshkka_at_[hidden])
Date: 2013-02-20 01:00:45

Hi,

I've got a very basic implementation and tests of
shared_lock_prioritized, that can be used like that:

// Events are written down in order of
// their execution in different threads

shared_lock_prioritized<2 /*priorities count*/ > lock;

// thread #1
// Lock with minimal priority
lock_shared();

// thread #2
// Lock with minimal priority
lock_shared(0);

// thread #3
// Lock for writing with priority
// greater than locks of threads 1 and 2
// Waits till already acquired locks in #1 and #2 finish
// and then writes
lock(1);

// thread #4
// Will wait till thread #3 finishes, only then acquire lock
lock_shared(0);

Such shared lock gives us ability to manage order/priority of different
lock attempts, we can make write locks have bigger priority that read
locks, have multiple priorities writes (ordered write locks) and so
on...

Is there an interest in it?

--
Best regards,
Antony Polukhin