Changeset 49150 in vbox for trunk/include/iprt

Timestamp:

Oct 17, 2013 7:22:02 AM (12 years ago)

Author:

vboxsync

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

90010

Message:

SUPR3: Use NtDeviceIoControlFile instead of DeviceIoControl to avoid wasting precious ticks on silly API conversions.

Location:

trunk/include/iprt/nt

Files:

• . (added)
• nt.h (copied) (copied from trunk/src/VBox/Runtime/r3/nt/internal-r3-nt.h ) (6 diffs)

trunk/include/iprt/nt/nt.h

@@ -1 +1 @@
 /* $Id$ */
 /** @file
- * IPRT - Internal Header for the Native NT code.
+ * IPRT - Header for code using the Native NT API.
  */
 
 /*
- * Copyright (C) 2010-2012 Oracle Corporation
+ * Copyright (C) 2010-2013 Oracle Corporation
  *
  * This file is part of VirtualBox Open Source Edition (OSE), as
@@ -25 +25 @@
  */
 
+#ifndef ___iprt_nt_nt_h___
+#define ___iprt_nt_nt_h___
 
-#ifndef ___internal_r3_nt_h___
-#define ___internal_r3_nt_h___
-
-
-/*******************************************************************************
-*   Header Files                                                               *
-*******************************************************************************/
 #include <ntstatus.h>
 #ifdef IPRT_NT_USE_WINTERNL
@@ -39 +34 @@
 # include <winnt.h>
 # include <winternl.h>
+# undef WIN32_NO_STATUS
+# include <ntstatus.h>
 # define IPRT_NT_NEED_API_GROUP_1
 
@@ -48 +45 @@
 # include <ntifs.h>
 #endif
-#include "internal/iprt.h"
+#include <iprt/types.h>
 
 
-/*******************************************************************************
-*   Defined Constants And Macros                                               *
-*******************************************************************************/
+/** @name Useful macros
+ * @{ */
 /** Indicates that we're targetting native NT in the current source. */
-#define RT_USE_NATIVE_NT                1
+#define RTNT_USE_NATIVE_NT              1
 /** Initializes a IO_STATUS_BLOCK. */
-#define MY_IO_STATUS_BLOCK_INITIALIZER  { STATUS_FAILED_DRIVER_ENTRY, ~(uintptr_t)42 }
+#define RTNT_IO_STATUS_BLOCK_INITIALIZER  { STATUS_FAILED_DRIVER_ENTRY, ~(uintptr_t)42 }
 /** Similar to INVALID_HANDLE_VALUE in the Windows environment. */
-#define MY_INVALID_HANDLE_VALUE         ( (HANDLE)~(uintptr_t)0 )
-
-#ifdef DEBUG_bird
-/** Enables the "\\!\" NT path pass thru as well as hacks for listing NT object
- * directories. */
-# define IPRT_WITH_NT_PATH_PASSTHRU 1
-#endif
+#define RTNT_INVALID_HANDLE_VALUE         ( (HANDLE)~(uintptr_t)0 )
+/** @}  */
 
 
-/*******************************************************************************
-*   Internal Functions                                                         *
-*******************************************************************************/
-int  rtNtPathOpen(const char *pszPath, ACCESS_MASK fDesiredAccess, ULONG fFileAttribs, ULONG fShareAccess,
-                  ULONG fCreateDisposition, ULONG fCreateOptions, ULONG fObjAttribs,
-                  PHANDLE phHandle, PULONG_PTR puDisposition);
-int  rtNtPathOpenDir(const char *pszPath, ACCESS_MASK fDesiredAccess, ULONG fShareAccess, ULONG fCreateOptions,
+/** @name IPRT helper functions for NT
+ * @{ */
+RT_C_DECLS_BEGIN
+
+RTDECL(int) RTNtPathOpen(const char *pszPath, ACCESS_MASK fDesiredAccess, ULONG fFileAttribs, ULONG fShareAccess,
+                          ULONG fCreateDisposition, ULONG fCreateOptions, ULONG fObjAttribs,
+                          PHANDLE phHandle, PULONG_PTR puDisposition);
+RTDECL(int) RTNtPathOpenDir(const char *pszPath, ACCESS_MASK fDesiredAccess, ULONG fShareAccess, ULONG fCreateOptions,
                      ULONG fObjAttribs, PHANDLE phHandle, bool *pfObjDir);
-int  rtNtPathClose(HANDLE hHandle);
+RTDECL(int) RTNtPathClose(HANDLE hHandle);
+
+RT_C_DECLS_END
+/** @} */
 
 
-/**
- * Internal helper for comparing a WCHAR string with a char string.
- *
- * @returns @c true if equal, @c false if not.
- * @param   pwsz1               The first string.
- * @param   cb1                 The length of the first string, in bytes.
- * @param   psz2                The second string.
- * @param   cch2                The length of the second string.
- */
-DECLINLINE(bool) rtNtCompWideStrAndAscii(WCHAR const *pwsz1, size_t cch1, const char *psz2, size_t cch2)
-{
-    if (cch1 != cch2 * 2)
-        return false;
-    while (cch2-- > 0)
-    {
-        unsigned ch1 = *pwsz1++;
-        unsigned ch2 = (unsigned char)*psz2++;
-        if (ch1 != ch2)
-            return false;
-    }
-    return true;
-}
-
-
-/*******************************************************************************
-*   NT APIs                                                                    *
-*******************************************************************************/
-
+/** @name NT API delcarations.
+ * @{ */
 RT_C_DECLS_BEGIN
 
@@ -119 +88 @@
 } FILE_FS_ATTRIBUTE_INFORMATION;
 typedef FILE_FS_ATTRIBUTE_INFORMATION *PFILE_FS_ATTRIBUTE_INFORMATION;
+
+typedef enum
+{
+    FileFsVolumeInformation = 1,
+    FileFsLabelInformation,
+    FileFsSizeInformation,
+    FileFsDeviceInformation,
+    FileFsAttributeInformation,
+    FileFsControlInformation,
+    FileFsFullSizeInformation,
+    FileFsObjectIdInformation,
+    FileFsMaximumInformation
+} FS_INFORMATION_CLASS;
+typedef FS_INFORMATION_CLASS *PFS_INFORMATION_CLASS;
 extern "C" NTSTATUS NTAPI NtQueryVolumeInformationFile(HANDLE, PIO_STATUS_BLOCK, PVOID, ULONG, FS_INFORMATION_CLASS);
 
@@ -134 +117 @@
 NTSTATUS NTAPI NtQueryDirectoryObject(HANDLE, PVOID, ULONG, BOOLEAN, BOOLEAN, PULONG, PULONG);
 
-
 RT_C_DECLS_END
+/** @} */
 
 #endif