.\" .\" Copyright 2013 Brendon Scheinman. .\" All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" .\" .Dd February 24, 2013. .Dt CK_COHORT_INIT 3 .Sh NAME .Nm CK_COHORT_INIT .Nd Initialize an instance of a cohort type .Sh LIBRARY Concurrency Kit (libck, \-lck) .Sh SYNOPSIS .In ck_cohort.h .Fn CK_COHORT_INIT "COHORT_NAME cohort_name" "COHORT *cohort" "void *global_lock" \ "void *local_lock" "unsigned int pass_limit" .Sh DESCRIPTION Until a cohort instance is initialized using the CK_COHORT_INIT macro, any operations involving it will have undefined behavior. After this macro has been called, the cohort pointed to by the .Fa cohort argument will use the lock pointed to by .Fa global_lock as its global lock and the lock pointed to by .Fa local_lock as its local lock. .Pp The cohort will relinquish its global lock after .Fa pass_limit consecutive acquisitions of its local lock, even if there are other threads waiting. If you are unsure of a value to use for the .Fa pass_limit argument, you should use CK_COHORT_DEFAULT_LOCAL_PASS_LIMIT. .Sh SEE ALSO .Xr ck_cohort 3 , .Xr CK_COHORT_PROTOTYPE 3 , .Xr CK_COHORT_TRYLOCK_PROTOTYPE 3 , .Xr CK_COHORT_INSTANCE 3 , .Xr CK_COHORT_INITIALIZER 3 , .Xr CK_COHORT_LOCK 3 , .Xr CK_COHORT_UNLOCK 3 , .Xr CK_COHORT_TRYLOCK 3 , .Pp Additional information available at http://concurrencykit.org/