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Commit Graph

11 Commits

Author SHA1 Message Date
Jim Meyering
9d6231ef2a maint: update all copyright year number ranges
Run "make update-copyright".
2011-01-01 22:16:47 +01:00
Paul R. Eggert
df906d2e75 randread: run 2x faster on 64-bit hosts, don't assume no padding bits
* gl/lib/rand-isaac.c: 	Remove the I/O; this belongs elsewhere.
Add support for ISAAC64.  Port to hosts with padding bits.
Add self to author list.  Include <limits.h>, for CHAR_BIT.
Don't include string.h, sys/time.h, unistd.h.
(min, just): New functions.
(IF32): New macros.
(ind, ISAAC_STEP, isaac_refill, mix, isaac_init, isaac_seed):
Add support for ISAAC64.  Port to hosts with padding bits.
(ind): Now an inline function rather than a macro; no need for it
to be a macro with modern compilers.
(ISAAC_STEP): Renamed from isaac_step, since it's not function-like.
Don't bother to pass args that are always the same.  All uses changed.
(ISAAC_STEP, ISAAC_SEED): Move to inside the only function body
that can use it.
(ISAAC_MIX): Renamed from isaac_mix, since it's now a macro and is
no longer function-like.  Don't bother saving and restoring state;
no longer needed now that we're not a function.  All uses changed.
(isaac_seed_start, isaac_seed_data, isaac_seed_finish): Remove.
(isaac_seed): Take just the one arg; the caller now sets s->m.
* gl/lib/rand-isaac.h: Use _GL_RAND_ISAAC_H to protect, instead
of RAND_ISAAC_H.  Try out " #" rather than "# " for indenting.
(ISAAC_BITS_LOG, ISAAC_BITS): New macros.
(ISAAC_WORDS_LOG): Renamed from ISAAC_LOG.
(isaac_word): New type.  All uses of uint32_t changed to isaac_word,
to support ISAAC64.
(struct isaac_state): Rename member MM to M, and make it public.
(isaac_seed, isaac_refill): Adjust to new API.
* gl/lib/randread.c: Include sys/time.h.
(get_nonce): New function, containing the nonce stuff that used
to be in rand-isaac.c but better belongs here.
(randread_new): Use it.
* gl/modules/randread (Depends-on): Add inline.
* gl/modules/randread-tests: New file.
* gl/tests/test-rand-isaac.c: New file.
2010-07-23 15:08:36 -07:00
Paul R. Eggert
c1d8e6e458 randread: use /dev/urandom to seed, not just getpid etc
* gl/lib/rand-isaac.c (isaac_seed_start): New arg SEEDED.
(isaac_seed): New args FD and BYTES_BOUND.  Read from FD if possible.
Don't bother with low-quality sources if FD has enough bytes.
* gl/lib/rand-isaac.h: New size_t arg for isaac_seed.
* gl/lib/randread.c: Include fcntl.h, unistd.h.
(NAME_OF_NONCE_DEVICE): New #define.
(nonce_device): New static var.
(randread_new): Use nonce device if available.
2010-07-20 09:51:12 -07:00
Jim Meyering
da7a704cd3 maint: replace each "for (;;)" with "while (true)"
Run this command:
  git ls-files | grep '\.[ch]$' \
    | xargs perl -pi -e 's/for \(;;\)/while (true)/g'
...except for randint.c, which does not include stdbool.h.
In that case, use "while (1)".
* gl/lib/randint.c (randint_genmax): Use "while (1)" for infloops.
* src/cat.c (simple_cat, cat): Use "while (true)" for infloops.
* gl/lib/randread.c (readsource, readisaac): Likewise.
* src/copy.c (copy_reg): Likewise.
* src/csplit.c (record_line_starts, process_regexp): Likewise.
* src/cut.c (set_fields): Likewise.
* src/dd.c (iread, parse_symbols): Likewise.
* src/df.c (find_mount_point, main): Likewise.
* src/du.c (main): Likewise.
* src/expand.c (expand): Likewise.
* src/factor.c (factor_using_division, do_stdin): Likewise.
* src/fmt.c (get_space): Likewise.
* src/ls.c (decode_switches): Likewise.
* src/od.c (main): Likewise.
* src/pr.c (main, read_line): Likewise.
* src/shred.c (dopass, genpattern): Likewise.
* src/sort.c (initbuf, fillbuf, getmonth, keycompare): Likewise.
* src/split.c (bytes_split, lines_split): Likewise.
* src/tac.c (tac_seekable): Likewise.
* src/test.c (and, or): Likewise.
* src/tr.c (squeeze_filter, main): Likewise.
* src/tsort.c (search_item): Likewise.
* src/unexpand.c (unexpand): Likewise.
* src/uniq.c (main): Likewise.
* src/yes.c (main): Likewise.
2010-05-31 11:02:21 +02:00
Jim Meyering
1aa17dc89b maint: update all FSF copyright year lists to include 2010
Use this command:
git ls-files | grep -v COPYING \
  | xargs env UPDATE_COPYRIGHT_USE_INTERVALS=1 \
      build-aux/update-copyright
2010-01-01 14:06:47 +01:00
Jim Meyering
5e778f7c8d global: convert indentation-TABs to spaces
Transformed via this shell code:
t=$'\t'
git ls-files \
  | grep -vE '(^|/)((GNU)?[Mm]akefile|ChangeLog)|\.(am|mk)$' \
  | grep -vE 'tests/pr/|help2man' \
  | xargs grep -lE "^ *$t" \
  | xargs perl -MText::Tabs -ni -le \
    '$m=/^( *\t[ \t]*)(.*)/; print $m ? expand($1) . $2 : $_'
2009-08-25 09:21:00 +02:00
Pádraig Brady
0f1b8c021d maint: remove compiler warnings from randint and randread modules
* gl/lib/randint.c: Remove unused MAX macro
* gl/lib/randread.c (randread_error): Add __attribute__((__noreturn__))
2009-04-07 19:08:32 +01:00
Pádraig Brady
af5723c71e shred,sort,shuf: don't use /dev/urandom by default
Suggestion from Steven Schveighoffer at:
http://savannah.gnu.org/patch/?6797
to greatly speed up the random passes done by shred.
* gl/lib/randread.c: Default to using the internal
pseudorandom generator, rather than reading /dev/urandom
* src/shred.c (usage): remove mention of /dev/urandom
* src/shuf.c (usage); ditto
* src/sort.c (usage): ditto
* doc/coreutils.text: Document the new behaviour
for aquiring random data.
2009-04-07 19:01:46 +01:00
Jim Meyering
20d523bfa2 maint: remove unused include and definitions
* gl/lib/randread.c (__attribute__): Remove unused definition.
(ATTRIBUTE_UNUSED): Likewise.
* gl/lib/selinux-at.c (_): Remove unused definition.
Don't include <gettext.h>.  No longer needed.
2009-03-15 08:17:41 +01:00
Jim Meyering
27d1636b33 Do not define-away __attribute__ when __STRICT_ANSI__ is set.
* src/system.h (__attribute__): Remove the __STRICT_ANSI__ disjunct.
It has been unnecessary since approximately gcc-2.6, and now, leaving
it would cause gcc -Werror -ansi to fail to compile csplit.c.
* gl/lib/randread.c (__attribute__): Likewise.
2008-01-17 10:53:44 +01:00
Jim Meyering
58a7ead41d Convert coreutils' rand*.{c,h,m4} into modules.
First step: move these files to gl/lib:
* lib/rand-isaac.c, lib/rand-isaac.h
* lib/randint.c, lib/randint.h
* lib/randperm.c, lib/randperm.h
* lib/randread.c, lib/randread.h

Step 2: add modules/rand* and remove now-unneeded .m4 files.
* gl/modules/randint: New file.
* gl/modules/randperm: New file.
* gl/modules/randread: New file.
* m4/randint.m4: Remove file.
* m4/randperm.m4: Remove file.
* m4/randread.m4: Remove file.

Step 3: use the new modules
* bootstrap.conf (gnulib_modules): Add randint and randperm.
* m4/prereq.m4 (gl_RANDINT, gl_RANDREAD, gl_RANDPERM): Don't require;
These have been removed.
(gl_ROOT_DEV_INO): Don't require; already handled via bootstrap.conf.
2007-10-07 19:43:35 +02:00