[Python-checkins] CVS: python/dist/src/Misc NEWS,1.105,1.106

[Tim Peters]

Update of /cvsroot/python/python/dist/src/Misc
In directory usw-pr-cvs1:/tmp/cvs-serv11428/python/dist/src/Misc

Modified Files:
	NEWS 
Log Message:
Fix bugs introduced by rewrite (in particular, time-based initialization
got broken).  Also added new method .jumpahead(N).  This finally gives us
a semi-decent answer to how Python's RNGs can be used safely and efficiently
in multithreaded programs (although it requires the user to use the new
machinery!).


Index: NEWS
===================================================================
RCS file: /cvsroot/python/python/dist/src/Misc/NEWS,v
retrieving revision 1.105
retrieving revision 1.106
diff -C2 -r1.105 -r1.106
*** NEWS	2001/01/25 03:36:26	1.105
--- NEWS	2001/01/25 06:23:18	1.106
***************
*** 9,13 ****
    the now-deprecated whrandom.py.  See the docs for details.  random.py
    also supports new functions getstate() and setstate(), for saving
!   and restoring the internal state of all the generators.
  
  
--- 9,18 ----
    the now-deprecated whrandom.py.  See the docs for details.  random.py
    also supports new functions getstate() and setstate(), for saving
!   and restoring the internal state of the generator; and jumpahead(n),
!   for quickly forcing the internal state to be the same as if n calls to
!   random() had been made.  The latter is particularly useful for multi-
!   threaded programs, creating one instance of the random.Random() class for
!   each thread, then using .jumpahead() to force each instance to use a
!   non-overlapping segment of the full period.
  
  
***************
*** 108,117 ****
    default.
  
!   You can force use of the fgets() method by #define'ing 
!   USE_FGETS_IN_GETLINE at build time (it may be faster than 
    getc_unlocked()).
  
!   You can force fgets() not to be used by #define'ing 
!   DONT_USE_FGETS_IN_GETLINE (this is the first thing to try if std test 
    test_bufio.py fails -- and let us know if it does!).
  
--- 113,122 ----
    default.
  
!   You can force use of the fgets() method by #define'ing
!   USE_FGETS_IN_GETLINE at build time (it may be faster than
    getc_unlocked()).
  
!   You can force fgets() not to be used by #define'ing
!   DONT_USE_FGETS_IN_GETLINE (this is the first thing to try if std test
    test_bufio.py fails -- and let us know if it does!).