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81 lines
2.7 KiB
81 lines
2.7 KiB
.\"
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.\" Copyright 2012 Abel P. Mathew
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.\" Copyright 2012 Samy Al Bahra.
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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 July 16th, 2012
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.Dt CK_BAG_SET_SPMC 3
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.Sh NAME
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.Nm ck_bag_set_spmc
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.Nd Replace the first occurence of a value in a bag. Insert value into the bag if value didn't previously exist.
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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_bag.h
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.Ft bool
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.Fn ck_bag_set_spmc "ck_bag_t *bag, void *compare, void *update"
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.Sh DESCRIPTION
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The
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.Fn ck_bag_set_spmc
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function will find the first occurence of the
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.Fa compare
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argument in the ck_bag pointed to by the
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.Fa bag
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argument and replace this entry with the value passed in by the
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.Fa update
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argument. If the no entries in the
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.Fa bag
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are equal to the
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.Fa compare
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argument, then a new entry with the value of
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.Fa update
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will placed in the bag.
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This function is safe in the presence of concurrent
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.Fn ck_bag_next
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operations.
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.Sh RETURN VALUES
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Upon completion
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.Fn ck_bag_set_spmc
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returns true on success, false on failure.
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.Sh ERRORS
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Behavior is undefined if the ck_bag pointed to by the
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.Fa bag
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argument has not been initialized.
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.Sh SEE ALSO
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.Xr ck_bag_allocator_set(3),
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.Xr ck_bag_block_next(3),
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.Xr ck_bag_destroy(3),
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.Xr ck_bag_iterator_init(3),
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.Xr ck_bag_next(3),
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.Xr ck_bag_remove_spmc(3),
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.Xr ck_bag_block_count(3),
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.Xr ck_bag_count(3),
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.Xr ck_bag_init(3),
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.Xr ck_bag_member_spmc(3),
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.Xr ck_bag_put_spmc(3),
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.Xr ck_bag_set_spmc(3)
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.Pp
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Additional information available at http://concurrencykit.org/
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