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PTHREADS-WIN32 RELEASE 2.9.1 (2012-05-27)
-----------------------------------------
Web Site: http://sourceware.org/pthreads-win32/
FTP Site: ftp://sourceware.org/pub/pthreads-win32
Maintainer: Ross Johnson <ross.johnson@loungebythelake.net>
We are pleased to announce the availability of a new release of
Pthreads-win32, an Open Source Software implementation of the
Threads component of the POSIX 1003.1 2001 Standard for Microsoft's
Win32 environment. Some functions from other sections of POSIX
1003.1 2001 are also supported including semaphores and scheduling
functions.
This release replaces an extremely brief 2.9.0 release and adds
some last minute non-code changes were made to embed better
descriptive properties in the dlls to indicate target architecture
and build environments.
Some common non-portable functions are also implemented for
additional compatibility, as are a few functions specific
to pthreads-win32 for easier integration with Win32 applications.
Pthreads-win32 is free software, distributed under the GNU Lesser
General Public License (LGPL).
Acknowledgements
----------------
This library is based originally on a Win32 pthreads
implementation contributed by John Bossom.
The implementation of Condition Variables uses algorithms developed
by Alexander Terekhov and Louis Thomas.
The implementation of POSIX mutexes has been improved by Thomas Pfaff
and later by Alexander Terekhov.
The implementation of Spinlocks and Barriers was contributed
by Ross Johnson.
The implementation of read/write locks was contributed by
Aurelio Medina and improved by Alexander Terekhov.
Many others have contributed significant time and effort to solve crutial
problems in order to make the library workable, robust and reliable.
Thanks to Xavier Leroy for granting permission to use and modify his
LinuxThreads manual pages.
Thanks to The Open Group for making the Single Unix Specification
publicly available - many of the manual pages included in the package
were extracted from it.
There is also a separate CONTRIBUTORS file. This file and others are
on the web site:
http://sourceware.org/pthreads-win32
As much as possible, the ChangeLog file acknowledges contributions to the
code base in more detail.
Changes since the last release
------------------------------
These are now documented in the NEWS file.
See the ChangeLog file also.
Known Bugs
----------
These are now documented in the BUGS file.
Level of standards conformance
------------------------------
The following POSIX options are defined and set to 200809L:
_POSIX_THREADS
_POSIX_THREAD_SAFE_FUNCTIONS
_POSIX_THREAD_ATTR_STACKSIZE
_POSIX_THREAD_PRIORITY_SCHEDULING
_POSIX_SEMAPHORES
_POSIX_READER_WRITER_LOCKS
_POSIX_SPIN_LOCKS
_POSIX_BARRIERS
The following POSIX options are defined and set to -1:
_POSIX_THREAD_ATTR_STACKADDR
_POSIX_THREAD_PRIO_INHERIT
_POSIX_THREAD_PRIO_PROTECT
_POSIX_THREAD_PROCESS_SHARED
The following POSIX limits are defined and set:
_POSIX_THREAD_THREADS_MAX
_POSIX_SEM_VALUE_MAX
_POSIX_SEM_NSEMS_MAX
_POSIX_THREAD_KEYS_MAX
_POSIX_THREAD_DESTRUCTOR_ITERATIONS
PTHREAD_STACK_MIN
PTHREAD_THREADS_MAX
SEM_VALUE_MAX
SEM_NSEMS_MAX
PTHREAD_KEYS_MAX
PTHREAD_DESTRUCTOR_ITERATIONS
The following functions are implemented:
---------------------------
PThreads
---------------------------
pthread_attr_init
pthread_attr_destroy
pthread_attr_getdetachstate
pthread_attr_getstackaddr
pthread_attr_getstacksize
pthread_attr_setdetachstate
pthread_attr_setstackaddr
pthread_attr_setstacksize
pthread_create
pthread_detach
pthread_equal
pthread_exit
pthread_join
pthread_once
pthread_self
pthread_cancel
pthread_cleanup_pop
pthread_cleanup_push
pthread_setcancelstate
pthread_setcanceltype
pthread_testcancel
---------------------------
Thread Specific Data
---------------------------
pthread_key_create
pthread_key_delete
pthread_setspecific
pthread_getspecific
---------------------------
Mutexes
---------------------------
pthread_mutexattr_init
pthread_mutexattr_destroy
pthread_mutexattr_getpshared
pthread_mutexattr_setpshared
pthread_mutexattr_gettype
pthread_mutexattr_settype (types: PTHREAD_MUTEX_DEFAULT
PTHREAD_MUTEX_NORMAL
PTHREAD_MUTEX_ERRORCHECK
PTHREAD_MUTEX_RECURSIVE )
pthread_mutexattr_getrobust
pthread_mutexattr_setrobust (values: PTHREAD_MUTEX_STALLED
PTHREAD_MUTEX_ROBUST)
pthread_mutex_init
pthread_mutex_destroy
pthread_mutex_lock
pthread_mutex_trylock
pthread_mutex_timedlock
pthread_mutex_unlock
pthread_mutex_consistent
---------------------------
Condition Variables
---------------------------
pthread_condattr_init
pthread_condattr_destroy
pthread_condattr_getpshared
pthread_condattr_setpshared
pthread_cond_init
pthread_cond_destroy
pthread_cond_wait
pthread_cond_timedwait
pthread_cond_signal
pthread_cond_broadcast
---------------------------
Read/Write Locks
---------------------------
pthread_rwlock_init
pthread_rwlock_destroy
pthread_rwlock_tryrdlock
pthread_rwlock_trywrlock
pthread_rwlock_rdlock
pthread_rwlock_timedrdlock
pthread_rwlock_rwlock
pthread_rwlock_timedwrlock
pthread_rwlock_unlock
pthread_rwlockattr_init
pthread_rwlockattr_destroy
pthread_rwlockattr_getpshared
pthread_rwlockattr_setpshared
---------------------------
Spin Locks
---------------------------
pthread_spin_init
pthread_spin_destroy
pthread_spin_lock
pthread_spin_unlock
pthread_spin_trylock
---------------------------
Barriers
---------------------------
pthread_barrier_init
pthread_barrier_destroy
pthread_barrier_wait
pthread_barrierattr_init
pthread_barrierattr_destroy
pthread_barrierattr_getpshared
pthread_barrierattr_setpshared
---------------------------
Semaphores
---------------------------
sem_init
sem_destroy
sem_post
sem_wait
sem_trywait
sem_timedwait
sem_getvalue (# free if +ve, # of waiters if -ve)
sem_open (returns an error ENOSYS)
sem_close (returns an error ENOSYS)
sem_unlink (returns an error ENOSYS)
---------------------------
RealTime Scheduling
---------------------------
pthread_attr_getschedparam
pthread_attr_setschedparam
pthread_attr_getinheritsched
pthread_attr_setinheritsched
pthread_attr_getschedpolicy (only supports SCHED_OTHER)
pthread_attr_setschedpolicy (only supports SCHED_OTHER)
pthread_getschedparam
pthread_setschedparam
pthread_getconcurrency
pthread_setconcurrency
pthread_attr_getscope
pthread_attr_setscope (only supports PTHREAD_SCOPE_SYSTEM)
sched_get_priority_max
sched_get_priority_min
sched_rr_get_interval (returns an error ENOTSUP)
sched_getaffinity
sched_setaffinity
sched_setscheduler (only supports SCHED_OTHER)
sched_getscheduler (only supports SCHED_OTHER)
sched_yield
---------------------------
Signals
---------------------------
pthread_sigmask
pthread_kill (only supports zero sig value,
for thread validity checking)
---------------------------
Non-portable routines (see the README.NONPORTABLE file for usage)
---------------------------
pthread_timedjoin_np
pthread_tryjoin_np
pthread_getw32threadhandle_np
pthread_timechange_handler_np
pthread_delay_np
pthread_getunique_np
pthread_getaffinity_np
pthread_setaffinity_np
pthread_mutexattr_getkind_np
pthread_mutexattr_setkind_np (types: PTHREAD_MUTEX_FAST_NP,
PTHREAD_MUTEX_ERRORCHECK_NP,
PTHREAD_MUTEX_RECURSIVE_NP,
PTHREAD_MUTEX_ADAPTIVE_NP,
PTHREAD_MUTEX_TIMED_NP)
pthread_num_processors_np
(The following four routines may be required when linking statically.
The process_* routines should not be needed for MSVC or GCC.)
pthread_win32_process_attach_np
pthread_win32_process_detach_np
(The following routines should only be needed to manage implicit
POSIX handles i.e. when Win native threads call POSIX thread routines
(other than pthread_create))
pthread_win32_thread_attach_np
pthread_win32_thread_detach_np
---------------------------
Static Initializers
---------------------------
PTHREAD_ONCE_INIT
PTHREAD_MUTEX_INITIALIZER
PTHREAD_RECURSIVE_MUTEX_INITIALIZER
PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
PTHREAD_ERRORCHECK_MUTEX_INITIALIZER
PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP
PTHREAD_COND_INITIALIZER
PTHREAD_RWLOCK_INITIALIZER
PTHREAD_SPINLOCK_INITIALIZER
---------------------------
CPU Affinity Mask Support
---------------------------
CPU_ZERO
CPU_EQUAL
CPU_COUNT
CPU_SET
CPU_CLR
CPU_ISSET
CPU_AND
CPU_OR
CPU_XOR
The library includes two non-API functions for creating cancellation
points in applications and libraries:
pthreadCancelableWait
pthreadCancelableTimedWait
The following functions are not implemented:
---------------------------
RealTime Scheduling
---------------------------
pthread_mutex_getprioceiling
pthread_mutex_setprioceiling
pthread_mutex_attr_getprioceiling
pthread_mutex_attr_getprotocol
pthread_mutex_attr_setprioceiling
pthread_mutex_attr_setprotocol
---------------------------
Fork Handlers
---------------------------
pthread_atfork
---------------------------
Stdio
---------------------------
flockfile
ftrylockfile
funlockfile
getc_unlocked
getchar_unlocked
putc_unlocked
putchar_unlocked
---------------------------
Thread-Safe C Runtime Library
---------------------------
readdir_r
getgrgid_r
getgrnam_r
getpwuid_r
getpwnam_r
---------------------------
Signals
---------------------------
sigtimedwait
sigwait
sigwaitinfo
---------------------------
General
---------------------------
sysconf
---------------------------
Thread-Safe C Runtime Library (macros)
---------------------------
strtok_r
asctime_r
ctime_r
gmtime_r
localtime_r
rand_r
Availability
------------
The prebuilt DLL, export libs (for both MSVC and Mingw32), and the header
files (pthread.h, semaphore.h, sched.h) are available along with the
complete source code.
The source code can be found at:
ftp://sources.redhat.com/pub/pthreads-win32
and as individual source code files at
ftp://sources.redhat.com/pub/pthreads-win32/source
The pre-built DLL, export libraries and include files can be found at:
ftp://sources.redhat.com/pub/pthreads-win32/dll-latest
Mailing List
------------
There is a mailing list for discussing pthreads on Win32. To join,
send email to:
pthreads-win32-subscribe@sourceware.cygnus.com
Application Development Environments
------------------------------------
See the README file for more information.
MSVC:
MSVC using SEH works. Distribute pthreadVSE.dll with your application.
MSVC using C++ EH works. Distribute pthreadVCE.dll with your application.
MSVC using C setjmp/longjmp works. Distribute pthreadVC.dll with your application.
Mingw32:
See the FAQ, Questions 6 and 10.
Mingw using C++ EH works. Distribute pthreadGCE.dll with your application.
Mingw using C setjmp/longjmp works. Distribute pthreadGC.dll with your application.
Cygwin: (http://sourceware.cygnus.com/cygwin/)
Developers using Cygwin do not need pthreads-win32 since it has POSIX threads
support. Refer to its documentation for details and extent.
UWIN:
UWIN is a complete Unix-like environment for Windows from AT&T. Pthreads-win32
doesn't currently support UWIN (and vice versa), but that may change in the
future.
Generally:
For convenience, the following pre-built files are available on the FTP site
(see Availability above):
pthread.h - for POSIX threads
semaphore.h - for POSIX semaphores
sched.h - for POSIX scheduling
pthreadVCE.dll - built with MSVC++ compiler using C++ EH
pthreadVCE.lib
pthreadVC.dll - built with MSVC compiler using C setjmp/longjmp
pthreadVC.lib
pthreadVSE.dll - built with MSVC compiler using SEH
pthreadVSE.lib
pthreadGCE.dll - built with Mingw32 G++ 2.95.2-1
pthreadGC.dll - built with Mingw32 GCC 2.95.2-1 using setjmp/longjmp
libpthreadGCE.a - derived from pthreadGCE.dll
libpthreadGC.a - derived from pthreadGC.dll
gcc.dll - needed if distributing applications that use
pthreadGCE.dll (but see the FAQ Q 10 for the latest
related information)
These are the only files you need in order to build POSIX threads
applications for Win32 using either MSVC or Mingw32.
See the FAQ file in the source tree for additional information.
Documentation
-------------
For the authoritative reference, see the online POSIX
standard reference at:
http://www.OpenGroup.org
For POSIX Thread API programming, several reference books are
available:
Programming with POSIX Threads
David R. Butenhof
Addison-Wesley (pub)
Pthreads Programming
By Bradford Nichols, Dick Buttlar & Jacqueline Proulx Farrell
O'Reilly (pub)
On the web: see the links at the bottom of the pthreads-win32 site:
http://sources.redhat.com/pthreads-win32/
Currently, there is no documentation included in the package apart
from the copious comments in the source code.
Enjoy!
Ross Johnson
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