* Added kernel private thread_state_to_text() which just calls

state_to_text().
* state_to_text() can now deal with a NULL thread argument.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27163 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/thread.h

@@ -46,6 +46,8 @@ void thread_exit(void);
 int32 thread_max_threads(void);
 int32 thread_used_threads(void);
 
+const char* thread_state_to_text(struct thread* thread, int32 state);
+
 #define thread_get_current_thread arch_thread_get_current_thread
 
 struct thread *thread_get_thread_struct(thread_id id);

src/system/kernel/thread.cpp

@@ -1003,16 +1003,18 @@ state_to_text(struct thread *thread, int32 state)
 
 		case B_THREAD_WAITING:
 		{
-			switch (thread->wait.type) {
+			if (thread != NULL) {
-				case THREAD_BLOCK_TYPE_SNOOZE:
+				switch (thread->wait.type) {
-					return "zzz";
+					case THREAD_BLOCK_TYPE_SNOOZE:
+						return "zzz";
 
-				case THREAD_BLOCK_TYPE_SEMAPHORE:
+					case THREAD_BLOCK_TYPE_SEMAPHORE:
-				{
+					{
-					sem_id sem = (sem_id)(addr_t)thread->wait.object;
+						sem_id sem = (sem_id)(addr_t)thread->wait.object;
-					if (sem == thread->msg.read_sem)
+						if (sem == thread->msg.read_sem)
-						return "receive";
+							return "receive";
-					break;
+						break;
+					}
 				}
 			}
 
@@ -1982,6 +1984,13 @@ thread_used_threads(void)
 }
 
 
+const char*
+thread_state_to_text(struct thread* thread, int32 state)
+{
+	return state_to_text(thread, state);
+}
+
+
 status_t
 thread_init(kernel_args *args)
 {