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uuid_time — extract the time at which the UUID was created
#include <uuid.h>
time_t
uuid_time( |
uuid_t uu, |
struct timeval *ret_tv); |
The uuid_time function
extracts the time at which the supplied time-based UUID
uu was created. Note
that the UUID creation time is only encoded within certain
types of UUIDs. This function can only reasonably expect to
extract the creation time for UUIDs created with the
uuid_generate_time(3) and
uuid_generate_time_safe(3)
functions. It may or may not work with UUIDs created by other
mechanisms.
The time at which the UUID was created, in seconds since
January 1, 1970 GMT (the epoch), is returned (see time(2)). The time at which
the UUID was created, in seconds and microseconds since the
epoch, is also stored in the location pointed to by
ret_tv (see gettimeofday(2)).
libuuid is part of the
util-linux package since version 2.15.1 and is available from
ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
uuid(3), uuid_clear(3), uuid_compare(3), uuid_copy(3), uuid_generate(3), uuid_is_null(3), uuid_parse(3), uuid_unparse(3)
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Copyright 1999 Andreas Dilger (adilgerenel.ucalgary.ca) %Begin-Header% 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, and the entire permission notice in its entirety, including the disclaimer of warranties. 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. 3. The name of the author may not be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF WHICH ARE HEREBY DISCLAIMED. IN NO EVENT SHALL THE AUTHOR 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 NOT ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. %End-Header% Created Wed Mar 10 17:42:12 1999, Andreas Dilger |