POSIX-RT-Semaphore

Revision history for Perl extension POSIX::RT::Semaphore.

BV := Bijan Vakili <bvakilioanda_com>
ER := Eric Rybski <rybskejyahoo_com>

0.05 Thu May 21 20:48:11 2009

version 0.05
portability: ppport.h updated to perl-5.10, Makefile.PL favors librt by default, hints/ files updated appropriately; this should fix linking on FreeBSD and Solaris (thx BV).
Semaphore.xs: use HAVE_SEM_* defines to determine feature set, as Makefile.PL now searches for actually present functions (nod to Net-Pcap). Export _SC constants.
Semaphore.pm/POD: Note FreeBSD 14 character name limit, correct NSEMS typo, document _SC constants.
t/: verify SC macro export, use shorter semaphore names (thx BV), accomodate Darwin's ENOSYS semgetvalue().

0.04 Sun Aug 7 00:40:43 2006

version 0.04
Semaphore.pm: Update CAVEATs with portability concerns. Remove debugging prints from 0.03.
t/: util.pl accomodates dec_osf name choice. No lingering named psems on system. fork-* silence child's Test::More output. skip-count cleanup following much varied ENOSYS exposure. Beware SIGSYS, though.
hints/: Initial hints dir: solaris, hpux and dec_osf support.

0.03 Sat Aug 5 13:14:20 2006

version 0.03
Anonymous sems allocated in anon, shared memory if possible (MAP_SHARED or mmap /dev/zero).
Semaphore.xs: allow sem_timedwait under __CYGWIN__ (thx ER). newCONSTSUB implementation of exportables, conditionally including SEM_NAME_LEN (Darwin) and SEM_NAME_MAX (Tru64, others).
Semaphore.pm: dynamically build @EXPORT_OK. POD documents constants, attempted anon shared allocation of unnamed sems.
t/: use_const.t modified to drop "no_macro" croak check. fork-inherit tests for both named and unnamed sems. 01util.t modified to sidestep older Test::More installations. ctors.t works around cygwin implementation.

0.02 Thu Jul 19 00:45:52 2006

version 0.2
restructure named and unnamed psems as classes with a common virtual ancestor class. Calling the "wrong" deallocator (e.g., $named_sem->destroy) still croaks, but now b/c the requested method is not found, rather than as a safety precaution.
getvalue() returns undef on failure
SIZEOF_SEM_T (undocumented)
Semaphore.xs: check POSIXTIMEOUTS for timedwait() and __CYGWIN__ for unlink() (thx ER). General legibility improvements.
Semaphore.pm: POD cleanup
t/: corrected cough boolean inversion in tests (thx ER). Substantially expanded test suite.

0.01 Sun Oct 19 20:02:08 2003