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Top Forums UNIX for Dummies Questions & Answers About Unix File creation time Post 302575349 by Corona688 on Monday 21st of November 2011 11:02:31 AM
Old 11-21-2011
Quote:
Originally Posted by gaellafond
Thanks for this info Corona688 (and vbe),
Since Ext4 was part of the Kernel, I assumed it was a Unix FS. Obviously, I was wrong, it's only used with Linux. Sorry for the misunderstanding.
I don't know if it's true, but I read somewhere that only Ubuntu is currently shipped with Ext4 by default (the post might be a bit old, I don't remember). I suppose that's means that only Ubuntu can give you the creation time, as long as you don't explicitly choose Ext4 when you install Linux.
That's probably a bit old by now. Ubuntu adopted it early.

Good to know there's a better reason than peer pressure to use ext4, though, but there's more important considerations than features when picking a filesystem.
  • Is it safe?
  • Is it sane?
  • Is it portable?
  • Can it recover from errors?
  • Will it grind down into a sticky mass after a few years of use?

The answers for ext3 are generally 'yes', 'yes', 'yes', 'yes', and 'no'. You can't say that for a lot of experimental or higher-performance filesystems. Some are untested, some are picky about how they're used, xfs fsck blows up on 32-bit, the kernel driver for reiserfs didn't compile right on 64-bit for a long time, ls on reiserfs3 can take 5 seconds of thrashing once you've used it 2 years, etc, etc, etc. Unless there's a high performance need you can count on ext3 not betraying you in these ways. So most maintainers were happy to wait and see if ext4 was all it was cracked up to be.

Last edited by Corona688; 11-21-2011 at 12:52 PM..
 

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SSL_SESSION_get_time(3) 					      OpenSSL						   SSL_SESSION_get_time(3)

NAME
SSL_SESSION_get_time, SSL_SESSION_set_time, SSL_SESSION_get_timeout, SSL_SESSION_set_timeout - retrieve and manipulate session time and timeout settings SYNOPSIS
#include <openssl/ssl.h> long SSL_SESSION_get_time(const SSL_SESSION *s); long SSL_SESSION_set_time(SSL_SESSION *s, long tm); long SSL_SESSION_get_timeout(const SSL_SESSION *s); long SSL_SESSION_set_timeout(SSL_SESSION *s, long tm); long SSL_get_time(const SSL_SESSION *s); long SSL_set_time(SSL_SESSION *s, long tm); long SSL_get_timeout(const SSL_SESSION *s); long SSL_set_timeout(SSL_SESSION *s, long tm); DESCRIPTION
SSL_SESSION_get_time() returns the time at which the session s was established. The time is given in seconds since the Epoch and therefore compatible to the time delivered by the time() call. SSL_SESSION_set_time() replaces the creation time of the session s with the chosen value tm. SSL_SESSION_get_timeout() returns the timeout value set for session s in seconds. SSL_SESSION_set_timeout() sets the timeout value for session s in seconds to tm. The SSL_get_time(), SSL_set_time(), SSL_get_timeout(), and SSL_set_timeout() functions are synonyms for the SSL_SESSION_*() counterparts. NOTES
Sessions are expired by examining the creation time and the timeout value. Both are set at creation time of the session to the actual time and the default timeout value at creation, respectively, as set by SSL_CTX_set_timeout(3). Using these functions it is possible to extend or shorten the lifetime of the session. RETURN VALUES
SSL_SESSION_get_time() and SSL_SESSION_get_timeout() return the currently valid values. SSL_SESSION_set_time() and SSL_SESSION_set_timeout() return 1 on success. If any of the function is passed the NULL pointer for the session s, 0 is returned. SEE ALSO
ssl(3), SSL_CTX_set_timeout(3), SSL_get_default_timeout(3) 1.0.1e 2013-02-11 SSL_SESSION_get_time(3)
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