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