Changeset 25616 in vbox for trunk/src/VBox/Runtime/r3

Timestamp:

Jan 2, 2010 12:13:19 AM (15 years ago)

Author:

vboxsync

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

56307

Message:

iprt/semrw-*: Added RTSemRWGetReadCount. Adjusted writer fairness a little bit in semrw-generic.cpp.

File:

• trunk/src/VBox/Runtime/r3/posix/semrw-posix.cpp (modified) (1 diff)

trunk/src/VBox/Runtime/r3/posix/semrw-posix.cpp

@@ -590 +590 @@
     return pThis->cWriterReads;
 }
+
+
+RTDECL(uint32_t) RTSemRWGetReadCount(RTSEMRW RWSem)
+{
+    /*
+     * Validate input.
+     */
+    struct RTSEMRWINTERNAL *pThis = RWSem;
+    AssertPtrReturn(pThis, 0);
+    AssertMsgReturn(pThis->u32Magic == RTSEMRW_MAGIC,
+                    ("pThis=%p u32Magic=%#x\n", pThis, pThis->u32Magic),
+                    0);
+
+    /*
+     * Return the requested data.
+     */
+    return pThis->cReaders;
+}
+