75 lines
2.9 KiB
Groff
75 lines
2.9 KiB
Groff
.\" Copyright 1999 Andreas Dilger (adilger@enel.ucalgary.ca)
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.\"
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.\" %Begin-Header%
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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, and the entire permission notice in its entirety,
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.\" including the disclaimer of warranties.
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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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.\" 3. The name of the author may not be used to endorse or promote
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.\" products derived from this software without specific prior
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.\" written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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.\" WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF
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.\" WHICH ARE HEREBY DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
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.\" LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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.\" OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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.\" BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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.\" LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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.\" USE OF THIS SOFTWARE, EVEN IF NOT ADVISED OF THE POSSIBILITY OF SUCH
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.\" DAMAGE.
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.\" %End-Header%
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.\"
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.\" Created Wed Mar 10 17:42:12 1999, Andreas Dilger
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.TH UUID_TIME 3 "@E2FSPROGS_MONTH@ @E2FSPROGS_YEAR@" "E2fsprogs version @E2FSPROGS_VERSION@"
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.SH NAME
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uuid_time \- extract the time at which the UUID was created
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.SH SYNOPSIS
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.nf
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.B #include <uuid/uuid.h>
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.sp
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.BI "time_t uuid_time(uuid_t " uu ", struct timeval *" ret_tv )
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.fi
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.SH DESCRIPTION
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The
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.B uuid_time
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function extracts the time at which the supplied time-based UUID
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.I uu
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was created. Note that the UUID creation time is only encoded within
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certain types of UUIDs. This function can only reasonably expect to
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extract the creation time for UUIDs created with the
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.BR uuid_generate_time (3)
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function. It may or may not work with UUIDs created by other mechanisms.
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.SH "RETURN VALUES"
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The time at which the UUID was created, in seconds since January 1, 1970 GMT
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(the epoch), is returned (see
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.BR time "(2))."
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The time at which the UUID was created, in seconds and microseconds since
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the epoch, is also stored in the location pointed to by
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.I ret_tv
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(see
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.BR gettimeofday "(2))."
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.SH AUTHOR
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Theodore Y. Ts'o
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.SH AVAILABILITY
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.UR http://e2fsprogs.sourceforge.net/
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http://e2fsprogs.sourceforge.net/
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.UE
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.SH "SEE ALSO"
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.BR uuid (3),
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.BR uuid_clear (3),
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.BR uuid_compare (3),
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.BR uuid_copy (3),
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.BR uuid_generate (3),
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.BR uuid_is_null (3),
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.BR uuid_parse (3),
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.BR uuid_unparse (3)
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