Changeset 2565 in vbox for trunk/include

Timestamp:

May 9, 2007 4:28:03 PM (18 years ago)

Author:

vboxsync

Message:

A little experiment trying to get rid of the critsect contention in DevATA.

File:

• trunk/include/VBox/pdm.h (modified) (2 diffs)

trunk/include/VBox/pdm.h

@@ -317 +317 @@
 {
     /** Padding. */
-    uint8_t padding[HC_ARCH_BITS == 64 ? 0xa8 : 0x80];
+    uint8_t padding[HC_ARCH_BITS == 64 ? 0xb8 : 0x80];
 #ifdef PDMCRITSECTINT_DECLARED
     /** The internal structure (not normally visible). */
@@ -381 +381 @@
  */
 PDMR3DECL(int) PDMR3CritSectTryEnter(PPDMCRITSECT pCritSect);
+
+/**
+ * Schedule a event semaphore for signalling upon critsect exit.
+ *
+ * @returns VINF_SUCCESS on success.
+ * @returns VERR_TOO_MANY_SEMAPHORES if the critsect was owned.
+ * @returns VERR_SEM_DESTROYED if RTCritSectDelete was called while waiting.
+ * @param   pCritSect       The critical section.
+ * @param   EventToSignal     The semapore that should be signalled.
+ */
+PDMR3DECL(int) PDMR3CritSectScheduleExitEvent(PPDMCRITSECT pCritSect, RTSEMEVENT EventToSignal);
 
 /**