Changeset 36596 in vbox for trunk/src/VBox/Runtime/common

Timestamp:

Apr 6, 2011 7:45:34 PM (14 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

71041

Message:

iprt/thread.h: Added RTThreadIsInitialized, RTThreadIsSelfKnown and RTThreadIsSelfAlive.

File:

• trunk/src/VBox/Runtime/common/misc/thread.cpp (modified) (4 diffs)

trunk/src/VBox/Runtime/common/misc/thread.cpp

@@ -84 +84 @@
 static RTSPINLOCK       g_ThreadSpinlock = NIL_RTSPINLOCK;
 #endif
+/** Indicates whether we've been initialized or not. */
+static bool             g_frtThreadInitialized;
 
 
@@ -146 +148 @@
                 rc = rtSchedNativeCalcDefaultPriority(RTTHREADTYPE_DEFAULT);
             if (RT_SUCCESS(rc))
+            {
+                g_frtThreadInitialized = true;
                 return VINF_SUCCESS;
+            }
 
             /* failed, clear out */
@@ -165 +170 @@
         rc = rtThreadNativeInit();
         if (RT_SUCCESS(rc))
+        {
+            g_frtThreadInitialized = true;
             return VINF_SUCCESS;
+        }
 
         /* failed, clear out */
@@ -994 +1002 @@
 
 
+RTDECL(bool) RTThreadIsSelfAlive(void)
+{
+    if (g_frtThreadInitialized)
+    {
+        RTTHREAD hSelf = RTThreadSelf();
+        if (hSelf != NIL_RTTHREAD)
+        {
+            /*
+             * Inspect the thread state.  ASSUMES thread state order.
+             */
+            RTTHREADSTATE enmState = rtThreadGetState(hSelf);
+            if (   enmState >= RTTHREADSTATE_RUNNING
+                && enmState <= RTTHREADSTATE_END)
+                return true;
+        }
+    }
+    return false;
+}
+RT_EXPORT_SYMBOL(RTThreadIsSelfAlive);
+
+
+RTDECL(bool) RTThreadIsSelfKnown(void)
+{
+    if (g_frtThreadInitialized)
+    {
+        RTTHREAD hSelf = RTThreadSelf();
+        if (hSelf != NIL_RTTHREAD)
+            return true;
+    }
+    return false;
+}
+RT_EXPORT_SYMBOL(RTThreadIsSelfKnown);
+
+
+RTDECL(bool) RTThreadIsInitialized(void)
+{
+    return g_frtThreadInitialized;
+}
+RT_EXPORT_SYMBOL(RTThreadIsInitialized);
+
+
 /**
  * Signal the user event.