Changeset 73648 in vbox for trunk/src/VBox/Devices/Audio

Timestamp:

Aug 14, 2018 11:40:23 AM (6 years ago)

Author:

vboxsync

Message:

Audio/AC97: Added timestamps (in ns) for last transfers / reads/writes.

File:

• trunk/src/VBox/Devices/Audio/DevIchAc97.cpp (modified) (4 diffs)

trunk/src/VBox/Devices/Audio/DevIchAc97.cpp

@@ -318 +318 @@
     AC97STREAMSTATEAIO    AIO;
 #endif
+    /** Timestamp (in ns) of last DMA transfer.
+     *  For output streams this is the last DMA read,
+     *  for input streams this is the last DMA write. */
+    uint64_t              tsLastTransferNs;
+    /** Timestamp (in ns) of last DMA buffer read / write. */
+    uint64_t              tsLastReadWriteNs;
 } AC97STREAMSTATE;
 AssertCompileSizeAlignment(AC97STREAMSTATE, 8);
@@ -1115 +1121 @@
     RTCircBufReleaseWriteBlock(pCircBuf, cbRead);
 
+    pDstStream->State.tsLastReadWriteNs = RTTimeNanoTS();
+
     if (pcbWritten)
         *pcbWritten = cbRead;
@@ -1182 +1190 @@
             break;
     }
+
+    pSrcStream->State.tsLastReadWriteNs = RTTimeNanoTS();
 
     if (pcbRead)
@@ -2683 +2693 @@
         }
     }
+
+    pStream->State.tsLastTransferNs = RTTimeNanoTS();
 
     ichac97R3StreamUnlock(pStream);