On Thu, Oct 10, 2002 at 07:50:28PM -0600, Andrei Cojocaru wrote: > Hello, > > I have a question, please include me in the reply specifically because I'm > not subscribed to the mailing list. Thanks > > I want a thread to spin atomically on a value until it's equal to 1(i.e. > it's waiting for an event), how do I do that? I have no idea.. I want this > to be fast, not have to use a mutex each time to protect the value > I have an idea of how to do it using atomic assembly statements but I don't > want to use assmebly, I want to know if FreeBSD has built-in stuff for this. > > Please help thanks. > > This is required because I'm building R/W locks for a transaction system I'm > working on, and I need a way for a thread waiting on a lock to be notified > when a lock is gotten (and without having the thread block [that's why I > want it to spin]). Any hints would be appreciated thanks, once again.
Would pthread_rwlock_tryrdlock(3) and pthread_rwlock_tryrdlock(3), combined with an usleep() or something, do the trick? G'luck, Peter -- Peter Pentchev [EMAIL PROTECTED] [EMAIL PROTECTED] PGP key: http://people.FreeBSD.org/~roam/roam.key.asc Key fingerprint FDBA FD79 C26F 3C51 C95E DF9E ED18 B68D 1619 4553 Hey, out there - is it *you* reading me, or is it someone else?
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