Changeset 88813 in vbox for trunk/src/VBox/Runtime/include

Timestamp:

May 1, 2021 6:15:13 PM (4 years ago)

Author:

vboxsync

Message:

IPRT/RTReq: Added a RTReqCancel function. Changed the behavior of the RTREQFLAGS_NO_WAIT to optionally return the request handle rather than obstinately returning NIL even when the phReq parameter is not NULL. This makes the usage clearer and allows canceling NO_WAIT requests. (Needed in DrvAudio.) bugref:9890

File:

• trunk/src/VBox/Runtime/include/internal/req.h (modified) (3 diffs)

trunk/src/VBox/Runtime/include/internal/req.h

@@ -49 +49 @@
     /** The request is begin processed. */
     RTREQSTATE_PROCESSING,
+    /** The request has been cancelled. */
+    RTREQSTATE_CANCELLED,
     /** The request is completed, the requester is begin notified. */
     RTREQSTATE_COMPLETED,
-    /** The request packet is in the free chain. (The requester */
+    /** The request packet is in the free chain. */
     RTREQSTATE_FREE
 } RTREQSTATE;
+AssertCompileSize(RTREQSTATE, sizeof(uint32_t));
 
 
@@ -114 +117 @@
             uint32_t            cArgs;
             /** Array of arguments. */
-            uintptr_t           aArgs[64];
+            uintptr_t           aArgs[12];
         } Internal;
     } u;
@@ -165 +168 @@
 DECLHIDDEN(void) rtReqQueueSubmit(PRTREQQUEUEINT pQueue, PRTREQINT pReq);
 DECLHIDDEN(void) rtReqPoolSubmit(PRTREQPOOLINT pPool, PRTREQINT pReq);
+DECLHIDDEN(void) rtReqPoolCancel(PRTREQPOOLINT pPool, PRTREQINT pReq);
 DECLHIDDEN(bool) rtReqQueueRecycle(PRTREQQUEUEINT pQueue, PRTREQINT pReq);
 DECLHIDDEN(bool) rtReqPoolRecycle(PRTREQPOOLINT pPool, PRTREQINT pReq);