2001-02-09 Ross Johnson <rpj@setup1.ise.canberra.edu.au>exp-2001-02-10-passed

        * nonportable.c (pthread_mutex_setdefaulttype_np): New
        function for changing the default mutex type.

        * mutex.c (ptw32_InitializeCriticalSection): Removed.
        (ptw32_InitializeCriticalSection): Removed.
        (ptw32_InitializeCriticalSection): Removed.
        (ptw32_InitializeCriticalSection): Removed.
        (ptw32_InitializeCriticalSection): Removed.
        (pthread_mutex_init): Apply Thomas Pfaff's original
        patches; remove use of critical sections and adapt
        for different mutex types (see log entry for 2001-01-10).
        The disadvantage of using critical sections is that
        they don't appear to be sharable between processes.
        This implementation provides the opportunity to place
        mutex objects in shared memory. Thread priority
        determines the order in which waiting threads acquire
        the mutex although the implementation includes a
        mechanism to prevent threads hogging the mutex through
        successive unlock/lock operations.
        (pthread_mutex_destroy): Likewise.
        (pthread_mutex_lock): Likewise.
        (pthread_mutex_unlock): Likewise.
        (pthread_mutex_trylock): Likewise.

        * pthread.h (rand_r): Add redundant test of '_seed' arg
        to avoid "unused variable" warnings. Any good compiler
        will optimise the test away anyway.

1 files changed, 15 insertions, 7 deletions

diff --git a/ANNOUNCE b/ANNOUNCE
index d2def8b..83977ac 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -111,7 +111,14 @@ Known bugs in this snapshot
 3. This is an interim snapshot as there are still some additional

    patches to go in, eg. to fix problems with errno support under

    some circumstances. Some people are seeing compile warnings

-   to do with _errno.

+   to do with _errno. Sorry if this affects you but applying

+   people's suggested patches is causing compiles to fail for me. As

+   I believe this affects ports such as WinCE that I don't have

+   the tools for, I'd appreciate it if someone could give me

+   a definitive patch that works everywhere.

+

+4. Turning on /Ox optimisation in the VC++ compiler causes an

+   "invalid page fault" to be generated in the test condvar2.c.

 

 Caveats

 -------

@@ -206,7 +213,6 @@ The following functions are implemented:
                                         PTHREAD_MUTEX_NORMAL

                                         PTHREAD_MUTEX_ERRORCHECK

                                         PTHREAD_MUTEX_RECURSIVE  )

-

       pthread_mutex_init

       pthread_mutex_destroy

       pthread_mutex_lock

@@ -275,9 +281,9 @@ The following functions are implemented:
       ---------------------------

       Non-portable routines (see the README.NONPORTABLE file for usage)

       ---------------------------

-      pthread_mutexattr_setforcecs_np

       pthread_getw32threadhandle_np

       pthread_delay_np

+      pthread_mutex_setdefaulttype_np

       pthread_win32_process_attach_np

       pthread_win32_process_detach_np

       pthread_win32_thread_attach_np

@@ -393,13 +399,15 @@ Application Development Environments
 ------------------------------------

       

 MSVC:

-MSVC using SEH works.

-MSVC using C++ EH works.

+MSVC using SEH works. Distribute pthreadVSE.dll with your application.

+MSVC using C++ EH works. Distribute pthreadVCE.dll with your application.

 

 Mingw32:

 You need gcc-2.95.2-1 modified as per pthreads-win32 FAQ answer (6), with

 binutils-19990818-1 and msvcrt runtime-2000-03-27. Mingw32 must use

-the thread-safe MSVCRT library (see the FAQ).

+the thread-safe MSVCRT library (see the FAQ). You need to distribute

+the gcc.dll DLL from Mingw32 with your application (as well as

+pthreadGCE.dll of course).

 

 Cygwin: (http://sourceware.cygnus.com/cygwin/)

 Cygwin aims to provide a complete POSIX environment on top of Win32, including

@@ -424,7 +432,7 @@ For convenience, the following pre-built files are available on the FTP site
 	pthreadVCE.lib

 	pthreadVSE.dll	- built with MSVC compiler using SEH

 	pthreadVSE.lib

-	pthreadGCE.dll	- built with Mingw32 G++

+	pthreadGCE.dll	- built with Mingw32 G++ 2.95.2-1 

 	libpthreadw32.a	- derived from pthreadGCE.dll

 

 These are the only files you need in order to build POSIX threads