Changeset 67721 in vbox for trunk/include/VBox/com

Timestamp:

Jun 30, 2017 10:17:01 AM (8 years ago)

Author:

vboxsync

Message:

glue/AutoLock: Adding isReadLockedOnCurrentThread method for debug assertions.

File:

• trunk/include/VBox/com/AutoLock.h (modified) (5 diffs)

trunk/include/VBox/com/AutoLock.h

@@ -125 +125 @@
 
     /**
+     * Returns @c true if the current thread holds a read lock on this
+     * read/write semaphore. Intended for debugging only as it isn't always
+     * accurate given @a fWannaHear.
+     */
+    virtual bool isReadLockedOnCurrentThread(bool fWannaHear = true) const = 0;
+
+    /**
      * Returns the current write lock level of this semaphore. The lock level
      * determines the number of nested #lockWrite() calls on the given
@@ -164 +171 @@
 
     virtual bool isWriteLockOnCurrentThread() const;
+    virtual bool isReadLockedOnCurrentThread(bool fWannaHear = true) const;
 
     virtual void lockWrite(LOCKVAL_SRC_POS_DECL);
@@ -202 +210 @@
     virtual ~WriteLockHandle();
     virtual bool isWriteLockOnCurrentThread() const;
+    virtual bool isReadLockedOnCurrentThread(bool fWannaHear = true) const;
 
     virtual void lockWrite(LOCKVAL_SRC_POS_DECL);
@@ -254 +263 @@
         LockHandle *h = lockHandle();
         return h ? h->isWriteLockOnCurrentThread() : false;
+    }
+
+    /**
+     * Equivalent to <tt>#lockHandle()->isReadLockedOnCurrentThread()</tt>.
+     * Returns @c false if lockHandle() returns @c NULL.
+     * @note Use with care, simple debug assertions and similar only.
+     */
+    bool isReadLockedOnCurrentThread(bool fWannaHear = true)
+    {
+        LockHandle *h = lockHandle();
+        return h ? h->isReadLockedOnCurrentThread(fWannaHear) : false;
     }
 };
@@ -573 +593 @@
     bool isWriteLockOnCurrentThread() const;
     uint32_t writeLockLevel() const;
+
+    bool isReadLockedOnCurrentThread(bool fWannaHear = true) const;
 
 private: