Branch: refs/heads/tonyc/24105-modern_rand
Home: https://github.com/Perl/perl5
Commit: caa20c7d632be87475ffd5b9ad6e7df783f5578c
https://github.com/Perl/perl5/commit/caa20c7d632be87475ffd5b9ad6e7df783f5578c
Author: Tony Cook <[email protected]>
Date: 2026-02-05 (Thu, 05 Feb 2026)
Changed paths:
M MANIFEST
M embed.fnc
M embed.h
M perl.c
R prng.h
M proto.h
M util.c
M util.h
Log Message:
-----------
new RNG: add threading support
Some of this will be further changed:
- moved the pcg64_random_t type to util.h so it's visible to intrpvar.h
- changed the PL_RANDOM_STATE_TYPE to pcg64_random_t
- changed the internal RNG to reference the new RNG and changed the
macro names to something more generic (without "drand48")
- added pcg64_random_t * parameters to the seed and RNG generation
functions (and rename with _r) so we can make them thread safe and
eliminate the global non-thread-safe random state
- Needed to move the functions out of prng.h so porting/args_assert
could find the function definitions and eliminate prng.h
- re-define the original non-thread-safe functions as macro wrappers
that pass in the state to the _r versions of the functions
I plan to move all of the random stuff out of util.h/util.c into
perlrand.h and random.c.
Commit: a7cef519fb11a0a0911934617e291a606c34aa91
https://github.com/Perl/perl5/commit/a7cef519fb11a0a0911934617e291a606c34aa91
Author: Tony Cook <[email protected]>
Date: 2026-02-05 (Thu, 05 Feb 2026)
Changed paths:
M util.c
Log Message:
-----------
util.c: clean up indentation on the new RNG functions
Commit: 3ffe71fa23d85efbcf7f5dfda2370903417ae29f
https://github.com/Perl/perl5/commit/3ffe71fa23d85efbcf7f5dfda2370903417ae29f
Author: Tony Cook <[email protected]>
Date: 2026-02-05 (Thu, 05 Feb 2026)
Changed paths:
M embed.fnc
M proto.h
M util.c
Log Message:
-----------
pcg64_random_double: process as an NV, not just double
Perl supports larger integers, the existing code would drop bits of
randomness on the floor, avoid that.
Commit: 79ae5ec803469e0151f4e691d799c77785d10696
https://github.com/Perl/perl5/commit/79ae5ec803469e0151f4e691d799c77785d10696
Author: Tony Cook <[email protected]>
Date: 2026-02-05 (Thu, 05 Feb 2026)
Changed paths:
M MANIFEST
M Makefile.SH
M embed.fnc
M embed.h
A perlrand.h
M proto.h
A random.c
M util.c
M util.h
M win32/GNUmakefile
M win32/Makefile
Log Message:
-----------
refactor: move random number handling to random.c, perlrand.h
Make it easier to find the bits of perl that deal with random number
generation and seeding.
Compare: https://github.com/Perl/perl5/compare/5221fd349788...79ae5ec80346
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