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.\"
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.\" Copyright 2013 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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.\" SUCH DAMAGE.
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.\"
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.\"
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.Dd July 18, 2013
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.Dt CK_HS_MOVE 3
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.Sh NAME
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.Nm ck_hs_move
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.Nd move one from hash set to another
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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_hs.h
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.Ft bool
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.Fn ck_hs_move "ck_hs_t *destination" "ck_hs_t *source" "ck_hs_hash_cb_t *hash_cb" "ck_hs_compare_cb_t *compare_cb" "struct ck_malloc *m"
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.Sh DESCRIPTION
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The
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.Fn ck_hs_move 3
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function will initialize
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.Fa source
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from
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.Fa destination .
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The hash function is set to
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.Fa hash_cb ,
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comparison function to
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.Fa compare_cb
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and the allocator callbacks to
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.Fa m .
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Further modifications to
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.Fa source
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will result in undefined behavior. Concurrent
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.Xr ck_hs_get 3
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and
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.Xr ck_hs_fas 3
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operations to
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.Fa source
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are legal until the next write operation to
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.Fa destination .
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.Pp
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This operation moves ownership from one hash set object
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to another and re-assigns callback functions to developer-specified
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values. This allows for dynamic configuration of allocation
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callbacks and is necessary for use-cases involving executable code
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which may be unmapped underneath the hash set.
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.Sh RETURN VALUES
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Upon successful completion
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.Fn ck_hs_move 3
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returns true and otherwise returns false to indicate an error.
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.Sh SEE ALSO
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.Xr ck_hs_init 3 ,
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.Xr ck_hs_destroy 3 ,
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.Xr CK_HS_HASH 3 ,
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.Xr ck_hs_iterator_init 3 ,
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.Xr ck_hs_next 3 ,
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.Xr ck_hs_put 3 ,
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.Xr ck_hs_put_unique 3 ,
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.Xr ck_hs_set 3 ,
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.Xr ck_hs_fas 3 ,
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.Xr ck_hs_remove 3 ,
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.Xr ck_hs_grow 3 ,
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.Xr ck_hs_rebuild 3 ,
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.Xr ck_hs_gc 3 ,
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.Xr ck_hs_count 3 ,
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.Xr ck_hs_reset 3 ,
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.Xr ck_hs_reset_size 3 ,
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.Xr ck_hs_stat 3
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.Pp
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Additional information available at http://concurrencykit.org/
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