Changeset 21505 in vbox for trunk/src/VBox/Runtime/r3/linux

Timestamp:

Jul 10, 2009 9:54:21 PM (15 years ago)

Author:

vboxsync

Message:

Fix Linux AIO by removing the needed header and defining needed types in the file. We didn't used that much from the header anyway and Linus sayed once that interfaces from kernel to user space wont change in an incompatible way so I think we are safe.

File:

• trunk/src/VBox/Runtime/r3/linux/fileaio-linux.cpp (modified) (12 diffs)

trunk/src/VBox/Runtime/r3/linux/fileaio-linux.cpp

@@ -63 +63 @@
 #include "internal/fileaio.h"
 
-/* Prevent including some header files the C++ compiler doesn't like. */
-#define _LINUX_BYTEORDER_LITTLE_ENDIAN_H
-#define _LINUX_BYTEORDER_SWABB_H
-#include <linux/aio_abi.h>
 #include <unistd.h>
 #include <sys/syscall.h>
@@ -77 +73 @@
 *   Structures and Typedefs                                                    *
 *******************************************************************************/
+/** The async I/O context handle */
+typedef unsigned long LNXKAIOCONTEXT;
+
+/**
+ * Supported commands for the iocbs
+ */
+enum
+{
+    LNXKAIO_IOCB_CMD_READ = 0,
+    LNXKAIO_IOCB_CMD_WRITE
+};
+
 /**
  * The iocb structure of a request which is passed to the kernel.
@@ -167 +175 @@
 {
     /** Handle to the async I/O context. */
-    aio_context_t       AioContext;
+    LNXKAIOCONTEXT      AioContext;
     /** Maximum number of requests this context can handle. */
     int                 cRequestsMax;
@@ -195 +203 @@
     RTFILEAIOREQSTATE     enmState;
     /** The I/O context this request is associated with. */
-    aio_context_t         AioContext;
+    LNXKAIOCONTEXT        AioContext;
     /** Return code the request completed with. */
     int                   Rc;
@@ -219 +227 @@
  * Creates a new async I/O context.
  */
-DECLINLINE(int) rtFileAsyncIoLinuxCreate(unsigned cEvents, aio_context_t *pAioContext)
+DECLINLINE(int) rtFileAsyncIoLinuxCreate(unsigned cEvents, LNXKAIOCONTEXT *pAioContext)
 {
     int rc = syscall(__NR_io_setup, cEvents, pAioContext);
@@ -231 +239 @@
  * Destroys a async I/O context.
  */
-DECLINLINE(int) rtFileAsyncIoLinuxDestroy(aio_context_t AioContext)
+DECLINLINE(int) rtFileAsyncIoLinuxDestroy(LNXKAIOCONTEXT AioContext)
 {
     int rc = syscall(__NR_io_destroy, AioContext);
@@ -243 +251 @@
  * Submits an array of I/O requests to the kernel.
  */
-DECLINLINE(int) rtFileAsyncIoLinuxSubmit(aio_context_t AioContext, long cReqs, LNXKAIOIOCB **ppIoCB, int *pcSubmitted)
+DECLINLINE(int) rtFileAsyncIoLinuxSubmit(LNXKAIOCONTEXT AioContext, long cReqs, LNXKAIOIOCB **ppIoCB, int *pcSubmitted)
 {
     int rc = syscall(__NR_io_submit, AioContext, cReqs, ppIoCB);
@@ -257 +265 @@
  * Cancels a I/O request.
  */
-DECLINLINE(int) rtFileAsyncIoLinuxCancel(aio_context_t AioContext, PLNXKAIOIOCB pIoCB, PLNXKAIOIOEVENT pIoResult)
+DECLINLINE(int) rtFileAsyncIoLinuxCancel(LNXKAIOCONTEXT AioContext, PLNXKAIOIOCB pIoCB, PLNXKAIOIOEVENT pIoResult)
 {
     int rc = syscall(__NR_io_cancel, AioContext, pIoCB, pIoResult);
@@ -270 +278 @@
  * @returns Number of events (natural number w/ 0), IPRT error code (negative).
  */
-DECLINLINE(int) rtFileAsyncIoLinuxGetEvents(aio_context_t AioContext, long cReqsMin, long cReqs,
+DECLINLINE(int) rtFileAsyncIoLinuxGetEvents(LNXKAIOCONTEXT AioContext, long cReqsMin, long cReqs,
                                             PLNXKAIOIOEVENT paIoResults, struct timespec *pTimeout)
 {
@@ -289 +297 @@
      * completion port.
      */
-    aio_context_t AioContext = 0;
+    LNXKAIOCONTEXT AioContext = 0;
     rc = rtFileAsyncIoLinuxCreate(1, &AioContext);
     if (RT_FAILURE(rc))
@@ -385 +393 @@
                                     void *pvBuf, size_t cbRead, void *pvUser)
 {
-    return rtFileAioReqPrepareTransfer(hReq, hFile, IOCB_CMD_PREAD,
+    return rtFileAioReqPrepareTransfer(hReq, hFile, LNXKAIO_IOCB_CMD_READ,
                                        off, pvBuf, cbRead, pvUser);
 }
@@ -393 +401 @@
                                      void *pvBuf, size_t cbWrite, void *pvUser)
 {
-    return rtFileAioReqPrepareTransfer(hReq, hFile, IOCB_CMD_PWRITE,
+    return rtFileAioReqPrepareTransfer(hReq, hFile, LNXKAIO_IOCB_CMD_WRITE,
                                        off, pvBuf, cbWrite, pvUser);
 }