Fri Dec 19 11:49:21 2003 George Lebl <jirka@5z.com>
* glib/grand.c
glib/grand.h (g_rand_new) (g_rand_new_with_seed)
(g_rand_new_with_seed_array) (g_rand_set_seed_array): Add
the init_by_array functionality from the reference implementation
of the mersenne twister (mt19937ar.c) and change the naming
to fit with the rest of the grand API. New functions are
g_rand_new_with_seed_array, g_rand_set_seed_array. This is only
reliable/tested for the 2.2 version of the seeding as that's what
the reference implementation uses. Also modify g_rand_new to
get 4 longs from /dev/urandom since that will always be available
anyway and we get more entropy and if /dev/urandom is unavailable
use also 4 longs for seeding using secs, usecs, getpid and getppid.
For version 2.0 use only a simple seed again but be more careful
about seeding with secs/usecs in this case.
* glib/grand.c
glib/grand.h (g_rand_copy): Add g_rand_copy function to copy the
current state of the random number generator.
* glib/grand.c (g_rand_new): Add testing for EINTR when reading
from /dev/urandom
* tests/rand-test.c: add testing of the array seeding stuff against
the reference implementation, plus add statistical sanity check
to see that the values outputted are truly kind of random. And
check that g_rand_copy truly copies the state by checking a few
terms.
2002-11-26 Sebastian Wilhelmi <wilhelmi@ira.uka.de>
* glib/grand.c, gthread/gthread-impl.c, tests/rand-test.c:
Improved the seeding algorithm. Old behaviour can be achived by
setting envvar G_RANDOM_VERSION to "2.0". (#99262)
* docs/reference/glib/glib-docs.sgml,
docs/reference/glib/Makefile.am: Renamed
docs/reference/glib/changes-2.0.sgml to
docs/reference/glib/changes.sgml and added section for changes
from 2.0 to 2.2 (Also corrected 1.0 to 1.2).
* README.in, docs/reference/glib/running.sgml,
docs/reference/glib/tmpl/random_numbers.sgml,
docs/reference/glib/changes.sgml: Added notes about the new
seeding algorithm.
2002-07-04 Sebastian Wilhelmi <wilhelmi@ira.uka.de>
* tests/*.c: Added #undef G_DISABLE_ASSERT and #undef G_LOG_DOMAIN
throughout the files, which didn't already have them. (#87312)
2001-05-31 Sebastian Wilhelmi <wilhelmi@ira.uka.de>
* grand.h (g_random_boolean, g_rand_boolean): Fix to stupid bug in
g_random_boolean, also both functions now return 1 or 0 instead of
1<<15 or 0.
1999-04-12 Sebastian Wilhelmi <wilhelmi@ira.uka.de>
* glib.h: Moved struct declaration up. Style fixes.
* grand.c: Style fixes. Only try to open /dev/random once.
* tests/rand-test.c (main): New tests; Slight bug fix.
1999-04-09 Sebastian Wilhelmi <wilhelmi@ira.uka.de>
* grand.c, tests/rand-test.c: New files to implement the Mersenne
Twister Pseudo Random Number Generator.
* glib.h, AUTHORS, Makefile.am, tests/Makefile.am: Changed
accordingly.
