Changeset 88307 in vbox for trunk/include/VBox/vmm

Timestamp:

Mar 26, 2021 9:18:42 PM (4 years ago)

Author:

vboxsync

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

143524

Message:

Audio: Buffer usage statistics so we can monitor whether they are emptied when they should be. bugref:9890

File:

• trunk/include/VBox/vmm/pdmaudioifs.h (modified) (3 diffs)

trunk/include/VBox/vmm/pdmaudioifs.h

@@ -1034 +1034 @@
      *       differ between parent and child.  */
     uint32_t                    cMixed;
-    /** How much audio frames are currently being used
-     *  in this buffer.
-     *  Note: This also is known as the distance in ring buffer terms. */
+    /** How much audio frames are currently being used in this buffer.
+     * @note This also is known as the distance in ring buffer terms. */
     uint32_t                    cUsed;
     /** Number of children mix buffers kept in lstChildren. */
@@ -1240 +1239 @@
         STAMCOUNTER     AvgFramesWritten;
         STAMCOUNTER     TotalTimesWritten;
+        uint32_t        cbBackendWritableBefore;
+        uint32_t        cbBackendWritableAfter;
     } Stats;
     /** Hack alert: Max writable amount reported by the backend.
@@ -1524 +1525 @@
      * @param   pCfgGuest       Stream configuration for guest side.
      * @param   ppStream        Pointer where to return the created audio stream on success.
+     * @todo r=bird: It is not documented how pCfgHost and pCfgGuest can be
+     *       modified the DrvAudio...
      */
     DECLR3CALLBACKMEMBER(int, pfnStreamCreate, (PPDMIAUDIOCONNECTOR pInterface, PPDMAUDIOSTREAMCFG pCfgHost,