supposedly improved pthread support

* bumped version to 3.7.3
* set pthread thread cancel type to PTHREAD_CANCEL_ASYNCHRONOUS
* lane_h:cancel() accepts a 3rd timeout argument used when waiting for
actual thread termination (hitting the timeout raises an error)
* added PROPAGATE_ALLOCF macro to select state creation mode
(lua_newstate or luaL_newstate)

1 files changed, 11 insertions, 1 deletions

diff --git a/src/threading.c b/src/threading.c
index 63c39ae..ad5b473 100644
--- a/src/threading.c
+++ b/src/threading.c
@@ -330,6 +330,8 @@ bool_t THREAD_WAIT_IMPL( THREAD_T *ref, double secs)
                 *ref= NULL;
         }
 
+        void THREAD_MAKE_ASYNCH_CANCELLABLE() {} // nothing to do for windows threads, we can cancel them anytime we want
+
 #if !defined __GNUC__
         //see http://msdn.microsoft.com/en-us/library/xcb2z8hs.aspx
         #define MS_VC_EXCEPTION 0x406D1388
@@ -896,11 +898,19 @@ bool_t THREAD_WAIT( THREAD_T *ref, double secs , SIGNAL_T *signal_ref, MUTEX_T *
 #endif // THREADWAIT_METHOD == THREADWAIT_CONDVAR
     return done;
   }
-  //
+        //
   void THREAD_KILL( THREAD_T *ref ) {
     pthread_cancel( *ref );
   }
 
+        void THREAD_MAKE_ASYNCH_CANCELLABLE()
+        {
+                // that's the default, but just in case...
+                pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
+                // we want cancellation to take effect immediately if possible, instead of waiting for a cancellation point (which is the default)
+                pthread_setcanceltype( PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
+        }
+
         void THREAD_SETNAME( char const* _name)
         {
                 // exact API to set the thread name is platform-dependant