win95 and pshared mutex support for pthreads

["Robert Collins" <robert dot collins at itdomain dot com dot au>]

The code is a little ugly, but it still passes all my testcases.

The ABI HAS NOT CHANGED. It may have to support pshared condition
variables properly, but I wanted to get the win95 support submitted.

Rob

Thu Apr 19 20:22:00 2001  Robert Collins <rbtcollins@hotmail.com>

 * password.cc (getpwuid): Check for thread cancellation.
 (getpwuid_r): Ditto.
 (getpwname): Ditto.
 (getpwnam_r): Ditto.
 * thread.h (pthread_mutex): New constructors for pshared operation.
 (MTinterface): Associative array for pshared mutex's.
 * thread.cc (MTinterface::Init): Initailize pshared mutex array.
 (pthread_cond::BroadCast): Implementation notes.
 (pthread_cond::TimedWait): Remove use of SignalObjectAndWait on non-NT
systems.
 (pthread_mutex::pthread_mutex(unsigned short)): New function.
 (pthread_mutex::pthread_mutex (pthread_mutex_t *, pthread_mutexattr
*)):New function.
 (pthread_mutex::pthread_mutex(pthread_mutexattr *)): Fail on pshared
mutex's.
 (__pthread_mutex_getpshared): New function.
 (__pthread_join): Check for thread cancellation.
 (__pthread_cond_timedwait): Support pshared mutex's.
 (__pthread_cond_wait): Ditto.
 (__pthread_condattr_setpshared): Error on PROCESS_SHARED requests.
 (__pthread_mutex_init): Support pshared mutex's.
 (__pthread_mutex_getprioceiling): Ditto.
 (__pthread_mutex_lock): Ditto.
 (__pthread_mutex_trylock): Ditto.
 (__pthread_mutex_unlock): Ditto.
 (__pthread_mutex_destroy): Ditto.
 (__pthread_mutex_setprioceiling): Ditto.
 (__pthread_mutexattr_setpshared): Support PTHREAD_PROCESS_PSHARED
requests.

pshared.ChangeLog

pshared.patch