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

	* passwd.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.

1 files changed, 9 insertions, 1 deletions

diff --git a/winsup/cygwin/thread.h b/winsup/cygwin/thread.h
index 6065f9d9c..39f0f58a4 100644
--- a/winsup/cygwin/thread.h
+++ b/winsup/cygwin/thread.h
@@ -263,12 +263,15 @@ class pthread_mutex:public verifyable_object
 public:
   HANDLE win32_obj_id;
   LONG condwaits;
+  int pshared;
 
   int Lock ();
   int TryLock ();
   int UnLock ();
-
+ 
+    pthread_mutex (unsigned short);
     pthread_mutex (pthread_mutexattr *);
+    pthread_mutex (pthread_mutex_t *, pthread_mutexattr *);
    ~pthread_mutex ();
 };
 
@@ -345,6 +348,11 @@ public:
   callback *pthread_child;
   callback *pthread_parent;
 
+  /* this is an associative array for the _exclusive_ use of pshared mutex's
+   * normal mutex's don't go here to reduce overhead and prevent serialisation.
+   */
+  class pthread_mutex * pshared_mutexs[256];
+
   void Init (int);
 
     MTinterface ():reent_index (0), indexallocated (0), threadcount (1)