* posix-threads.cc (_Jv_CondWait): Call _Jv_PthreadCheckMonitor.

	* include/posix-threads.h (_Jv_PthreadCheckMonitor): New
	function.
	(_Jv_CondNotify): Use it.
	(_Jv_CondNotifyAll): Likewise.

	* java/lang/Class.h (JV_STATE_NOTHING): Correct misspelling.


git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@29030 138bc75d-0d04-0410-961f-82ee72b054a4

5 files changed, 40 insertions, 8 deletions

diff --git a/libjava/ChangeLog b/libjava/ChangeLog
index dd5e2f9ce79..5a6d8a80b0a 100644
--- a/libjava/ChangeLog
+++ b/libjava/ChangeLog
@@ -1,3 +1,13 @@
+1999-09-01  Tom Tromey  <tromey@cygnus.com>
+
+	* posix-threads.cc (_Jv_CondWait): Call _Jv_PthreadCheckMonitor.
+	* include/posix-threads.h (_Jv_PthreadCheckMonitor): New
+	function.
+	(_Jv_CondNotify): Use it.
+	(_Jv_CondNotifyAll): Likewise.
+
+	* java/lang/Class.h (JV_STATE_NOTHING): Correct misspelling.
+
 1999-08-31  Tom Tromey  <tromey@cygnus.com>
 
 	* include/jvm.h (_Jv_makeUtf8TypeConst): Removed unused
diff --git a/libjava/include/posix-threads.h b/libjava/include/posix-threads.h
index 6e4cc70c020..2ad6c06e047 100644
--- a/libjava/include/posix-threads.h
+++ b/libjava/include/posix-threads.h
@@ -65,6 +65,25 @@ typedef struct
 typedef void _Jv_ThreadStartFunc (java::lang::Thread *);
 
 
+// This is a convenience function used only by the pthreads thread
+// implementation.  This is slow, but that's too bad -- we need to do
+// the checks for correctness.  It might be nice to be able to compile
+// this out.
+inline int _Jv_PthreadCheckMonitor (_Jv_Mutex_t *mu)
+{
+  pthread_mutex_t *pmu;
+#ifdef HAVE_RECURSIVE_MUTEX
+  pmu = mu;
+#else
+  pmu = &mu->mutex2;
+#endif
+  // See if the mutex is locked by this thread.
+  if (pthread_mutex_trylock (pmu))
+    return 1;
+  pthread_mutex_unlock (pmu);
+  return 0;
+}
+
 //
 // Condition variables.
 //
@@ -94,17 +113,15 @@ int _Jv_CondWait (_Jv_ConditionVariable_t *cv, _Jv_Mutex_t *mu,
 		  jlong millis, jint nanos);
 
 inline int
-_Jv_CondNotify (_Jv_ConditionVariable_t *cv, _Jv_Mutex_t *)
+_Jv_CondNotify (_Jv_ConditionVariable_t *cv, _Jv_Mutex_t *mu)
 {
-  // FIXME: check to see if mutex is held by current thread.
-  return pthread_cond_signal (cv);
+  return _Jv_PthreadCheckMonitor (mu) || pthread_cond_signal (cv);
 }
 
 inline int
-_Jv_CondNotifyAll (_Jv_ConditionVariable_t *cv, _Jv_Mutex_t *)
+_Jv_CondNotifyAll (_Jv_ConditionVariable_t *cv, _Jv_Mutex_t *mu)
 {
-  // FIXME: check to see if mutex is held by current thread.
-  return pthread_cond_broadcast (cv);
+  return _Jv_PthreadCheckMonitor (mu) || pthread_cond_broadcast (cv);
 }
 
 
diff --git a/libjava/java/lang/Class.h b/libjava/java/lang/Class.h
index b038c349826..fd2c2eba777 100644
--- a/libjava/java/lang/Class.h
+++ b/libjava/java/lang/Class.h
@@ -27,7 +27,7 @@ extern "C" void _Jv_RegisterClasses (jclass *classes);
 // `resolved' must come between `nothing' and the other states.
 // Whenever the state changes, one should notify all waiters of this
 // class.
-#define JV_STATE_NOTING        0 // set by compiler
+#define JV_STATE_NOTHING       0 // set by compiler
 
 #define JV_STATE_PRELOADING    1 // can do _Jv_FindClass
 #define JV_STATE_LOADING       3 // has super installed
diff --git a/libjava/java/lang/natClassLoader.cc b/libjava/java/lang/natClassLoader.cc
index 28a70e7b7e4..0bd7cd0d9e9 100644
--- a/libjava/java/lang/natClassLoader.cc
+++ b/libjava/java/lang/natClassLoader.cc
@@ -405,7 +405,7 @@ _Jv_RegisterClasses (jclass *classes)
 
       // registering a compiled class causes
       // it to be immediately "prepared".  
-      if (klass->state == JV_STATE_NOTING)
+      if (klass->state == JV_STATE_NOTHING)
 	klass->state = JV_STATE_COMPILED;
     }
 }
diff --git a/libjava/posix-threads.cc b/libjava/posix-threads.cc
index 48f0a7f738f..413f7c3bfce 100644
--- a/libjava/posix-threads.cc
+++ b/libjava/posix-threads.cc
@@ -75,6 +75,9 @@ int
 _Jv_CondWait (_Jv_ConditionVariable_t *cv, _Jv_Mutex_t *mu,
 	      jlong millis, jint nanos)
 {
+  if (_Jv_PthreadCheckMonitor (mu))
+    return 1;
+
   int r;
   pthread_mutex_t *pmu;
 #ifdef HAVE_RECURSIVE_MUTEX
@@ -82,6 +85,7 @@ _Jv_CondWait (_Jv_ConditionVariable_t *cv, _Jv_Mutex_t *mu,
 #else
   pmu = &mu->mutex2;
 #endif
+
   if (millis == 0 && nanos == 0)
     r = pthread_cond_wait (cv, pmu);
   else
@@ -96,6 +100,7 @@ _Jv_CondWait (_Jv_ConditionVariable_t *cv, _Jv_Mutex_t *mu,
       if (r && errno == ETIMEDOUT)
 	r = 0;
     }
+
   return r;
 }