Changeset 10476 in vbox for trunk/src/VBox/Additions/common/VBoxGuestLib

Timestamp:

Jul 10, 2008 4:09:21 PM (16 years ago)

Author:

vboxsync

Message:

Guest Lib R3: IOCTL handling for Windows (not tested yet!) to simplify logging / communication.

File:

• trunk/src/VBox/Additions/common/VBoxGuestLib/VBoxGuestR3Lib.cpp (modified) (6 diffs)

trunk/src/VBox/Additions/common/VBoxGuestLib/VBoxGuestR3Lib.cpp

@@ -61 +61 @@
 #ifdef VBOX_VBGLR3_XFREE86
 static int g_File = -1;
+#elif defined(RT_OS_WINDOWS)
+static HANDLE g_hFile = INVALID_HANDLE_VALUE;
 #else
 static RTFILE g_File = NIL_RTFILE;
@@ -85 +87 @@
          * processed calling us more than once.
          */
-#ifndef VBOX_VBGLR3_XFREE86
+#ifndef RT_OS_WINDOWS
+    #ifndef VBOX_VBGLR3_XFREE86
         if (g_File == NIL_RTFILE)
-#else
+    #else
         if (g_File == -1)
-#endif
+    #endif
             return VERR_INTERNAL_ERROR;
+#else
+    if (g_hFile == NULL)
+        return VERR_INTERNAL_ERROR;
+#endif
         return VINF_SUCCESS;
     }
-#ifndef VBOX_VBGLR3_XFREE86
-    if (g_File != NIL_RTFILE)
-#else
-    if (g_File != -1)
-#endif
+
+#ifndef RT_OS_WINDOWS
+    #ifndef VBOX_VBGLR3_XFREE86
+        if (g_File != NIL_RTFILE)
+    #else
+        if (g_File != -1)
+    #endif
+            return VERR_INTERNAL_ERROR;
+#else
+    if (g_hFile != INVALID_HANDLE_VALUE)
         return VERR_INTERNAL_ERROR;
+#endif
 
 #if defined(RT_OS_OS2)
@@ -192 +205 @@
     g_File = File;
 
-#else
-    /* the default implemenation. (linux, solaris) */
+#elif defined(RT_OS_WINDOWS)
+
+    /* 
+     * Open a handle to the shadow device.
+     */
+    g_hFile = CreateFile(VBOXGUEST_DEVICE_NAME,
+                         GENERIC_READ | GENERIC_WRITE,
+                         FILE_SHARE_READ | FILE_SHARE_WRITE,
+                         NULL,
+                         OPEN_EXISTING,
+                         FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED,
+                         NULL);
+
+    if (g_hFile == INVALID_HANDLE_VALUE)
+        return VERR_OPEN_FAILED;
+
+#else
+
+    /* The default implemenation. (linux, solaris) */
     RTFILE File;
     int rc = RTFileOpen(&File, VBOXGUEST_DEVICE_NAME, RTFILE_O_READWRITE | RTFILE_O_OPEN | RTFILE_O_DENY_NONE);
@@ -223 +253 @@
     if (cInits > 0)
         return;
-#ifndef VBOX_VBGLR3_XFREE86
-    AssertReturnVoid(!cInits);
-    RTFILE File = g_File;
-    g_File = NIL_RTFILE;
-    AssertReturnVoid(File != NIL_RTFILE);
-
-#else
-    int File = g_File;
-    g_File = -1;
-    if (File == -1)
-        return;
+#ifndef RT_OS_WINDOWS
+    #ifndef VBOX_VBGLR3_XFREE86
+        AssertReturnVoid(!cInits);
+        RTFILE File = g_File;
+        g_File = NIL_RTFILE;
+        AssertReturnVoid(File != NIL_RTFILE);
+    #else
+        int File = g_File;
+        g_File = -1;
+        if (File == -1)
+            return;
+    #endif
+#else
+    /* Nothing to do here yet. */
+
 #endif
 
@@ -243 +277 @@
     xf86close(File);
     File = -1;
+
+#elif defined(RT_OS_WINDOWS)
+   if (INVALID_HANDLE_VALUE != g_hFile)
+   {
+       CloseHandle (g_hFile);
+       g_hFile = INVALID_HANDLE_VALUE;
+   }
 
 #else
@@ -293 +334 @@
     return VINF_SUCCESS;
 
+#elif defined(RT_OS_WINDOWS)
+
+    DWORD cbReturned = 0;
+    if (FALSE == DeviceIoControl(g_hFile, iFunction, pvData, cbData,
+                                 pvData, cbData, &cbReturned, NULL))
+        return GetLastError();      /* @todo Add better error lookup. */
+
+    return VINF_SUCCESS;
+
 #elif defined(VBOX_VBGLR3_XFREE86)
     /* PORTME - This is preferred over the RTFileIOCtl variant below, just be careful with the (int). */