Changeset 45189 in vbox for trunk/src/VBox/VMM/include/STAMInternal.h

Timestamp:

Mar 26, 2013 9:31:59 AM (12 years ago)

Author:

vboxsync

Message:

STAM,VM: ring-3 only testing of pdmcritsectrw.h (disabled).

File:

• trunk/src/VBox/VMM/include/STAMInternal.h (modified) (3 diffs)

trunk/src/VBox/VMM/include/STAMInternal.h

@@ -24 +24 @@
 #include <VBox/vmm/gvmm.h>
 #include <VBox/vmm/gmm.h>
-#include <iprt/semaphore.h>
+#ifndef USE_PDMCRITSECTRW
+# include <iprt/semaphore.h>
+#else
+# include <VBox/vmm/pdmcritsectrw.h>
+#endif
 
 
@@ -102 +106 @@
     R3PTRTYPE(PSTAMDESC)    pHead;
     /** RW Lock for the list. */
+#ifndef USE_PDMCRITSECTRW
     RTSEMRW                 RWSem;
+#else
+    PDMCRITSECTRW           CritSectRw;
+#endif
 
     /** The copy of the GVMM statistics. */
@@ -120 +128 @@
 
 
+#ifndef USE_PDMCRITSECTRW
 /** Locks the sample descriptors for reading. */
-#define STAM_LOCK_RD(pUVM)      do { int rcSem = RTSemRWRequestRead(pUVM->stam.s.RWSem, RT_INDEFINITE_WAIT);  AssertRC(rcSem); } while (0)
+# define STAM_LOCK_RD(pUVM)     do { int rcSem = RTSemRWRequestRead(pUVM->stam.s.RWSem, RT_INDEFINITE_WAIT);  AssertRC(rcSem); } while (0)
 /** Locks the sample descriptors for writing. */
-#define STAM_LOCK_WR(pUVM)      do { int rcSem = RTSemRWRequestWrite(pUVM->stam.s.RWSem, RT_INDEFINITE_WAIT); AssertRC(rcSem); } while (0)
+# define STAM_LOCK_WR(pUVM)     do { int rcSem = RTSemRWRequestWrite(pUVM->stam.s.RWSem, RT_INDEFINITE_WAIT); AssertRC(rcSem); } while (0)
 /** UnLocks the sample descriptors after reading. */
-#define STAM_UNLOCK_RD(pUVM)    do { int rcSem = RTSemRWReleaseRead(pUVM->stam.s.RWSem);  AssertRC(rcSem); } while (0)
+# define STAM_UNLOCK_RD(pUVM)   do { int rcSem = RTSemRWReleaseRead(pUVM->stam.s.RWSem);  AssertRC(rcSem); } while (0)
 /** UnLocks the sample descriptors after writing. */
-#define STAM_UNLOCK_WR(pUVM)    do { int rcSem = RTSemRWReleaseWrite(pUVM->stam.s.RWSem); AssertRC(rcSem); } while (0)
+# define STAM_UNLOCK_WR(pUVM)   do { int rcSem = RTSemRWReleaseWrite(pUVM->stam.s.RWSem); AssertRC(rcSem); } while (0)
+/** Lazy initialization */
+# define STAM_LAZY_INIT(pUVM)   do { } while (0)
+#else
+/** Locks the sample descriptors for reading. */
+# define STAM_LOCK_RD(pUVM) \
+    if (PDMCritSectRwIsInitialized(&pUVM->stam.s.CritSectRw)) \
+    {   int rcSem = PDMCritSectRwEnterShared(&pUVM->stam.s.CritSectRw, VINF_SUCCESS); AssertRC(rcSem); } else do { } while (0)
+/** Locks the sample descriptors for writing. */
+# define STAM_LOCK_WR(pUVM) \
+    if (PDMCritSectRwIsInitialized(&pUVM->stam.s.CritSectRw)) \
+    {   int rcSem = PDMCritSectRwEnterExcl(&pUVM->stam.s.CritSectRw, VINF_SUCCESS); AssertRC(rcSem); } else do { } while (0)
+/** UnLocks the sample descriptors after reading. */
+# define STAM_UNLOCK_RD(pUVM) \
+    if (PDMCritSectRwIsInitialized(&pUVM->stam.s.CritSectRw)) \
+    {   int rcSem = PDMCritSectRwLeaveShared(&pUVM->stam.s.CritSectRw); AssertRC(rcSem); } else do { } while (0)
+/** UnLocks the sample descriptors after writing. */
+# define STAM_UNLOCK_WR(pUVM) \
+    if (PDMCritSectRwIsInitialized(&pUVM->stam.s.CritSectRw)) \
+    {   int rcSem = PDMCritSectRwLeaveExcl(&pUVM->stam.s.CritSectRw); AssertRC(rcSem); } else do { } while (0)
+/** Lazy initialization. */
+# define STAM_LAZY_INIT(pUVM) \
+    if (!PDMCritSectRwIsInitialized(&pUVM->stam.s.CritSectRw) && (pUVM)->pVM) \
+    { \
+        static bool volatile s_fInProgress = false; \
+        if (!s_fInProgress) \
+        { \
+            s_fInProgress = true; \
+            int rcSem = PDMR3CritSectRwInit(pUVM->pVM, &pUVM->stam.s.CritSectRw, RT_SRC_POS, "stam-rw"); \
+            AssertRC(rcSem); Assert(PDMCritSectRwIsInitialized(&pUVM->stam.s.CritSectRw) || RT_FAILURE(rcSem)); \
+        } \
+    } else do { } while (0)
+#endif
 
 /** @} */