[llvm-commits] [llvm] r49030 - in /llvm/trunk: include/llvm/System/Path.h lib/System/Unix/Path.inc lib/System/Win32/Path.inc

[Chris Lattner]

Author: lattner
Date: Tue Apr  1 01:00:12 2008
New Revision: 49030

URL: http://llvm.org/viewvc/llvm-project?rev=49030&view=rev
Log:
Stub out some sys::Path::MapInFilePages/UnMapFilePages methods.

Modified:
    llvm/trunk/include/llvm/System/Path.h
    llvm/trunk/lib/System/Unix/Path.inc
    llvm/trunk/lib/System/Win32/Path.inc

Modified: llvm/trunk/include/llvm/System/Path.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/System/Path.h?rev=49030&r1=49029&r2=49030&view=diff

==============================================================================
--- llvm/trunk/include/llvm/System/Path.h (original)
+++ llvm/trunk/include/llvm/System/Path.h Tue Apr  1 01:00:12 2008
@@ -544,6 +544,29 @@
       /// @brief Removes the file or directory from the filesystem.
       bool eraseFromDisk(bool destroy_contents = false,
                          std::string *Err = 0) const;
+    
+    
+      /// MapInFilePages - This is a low level system API to map in the file
+      /// that is currently opened as FD into the current processes' address
+      /// space for read only access.  This function may return null on failure
+      /// or if the system cannot provide the following constraints:
+      ///  1) The pages must be valid after the FD is closed, until
+      ///     UnMapFilePages is called.
+      ///  2) Any padding after the end of the file must be zero filled, if
+      ///     present.
+      ///  3) The pages must be contiguous.
+      ///
+      /// This API is not intended for general use, clients should use 
+      /// MemoryBuffer::getFile instead.
+      static const char *MapInFilePages(int FD, uint64_t FileSize);
+    
+      /// UnMapFilePages - Free pages mapped into the current process by
+      /// MapInFilePages.
+      /// 
+      /// This API is not intended for general use, clients should use 
+      /// MemoryBuffer::getFile instead.
+      static void UnMapFilePages(const char *Base, uint64_t FileSize);
+    
     /// @}
     /// @name Data
     /// @{

Modified: llvm/trunk/lib/System/Unix/Path.inc
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/System/Unix/Path.inc?rev=49030&r1=49029&r2=49030&view=diff

==============================================================================
--- llvm/trunk/lib/System/Unix/Path.inc (original)
+++ llvm/trunk/lib/System/Unix/Path.inc Tue Apr  1 01:00:12 2008
@@ -745,5 +745,15 @@
   return false;
 }
 
+/// MapInFilePages - Not yet implemented on win32.
+const char *Path::MapInFilePages(int FD, uint64_t FileSize) {
+  return 0;
+}
+
+/// MapInFilePages - Not yet implemented on win32.
+void Path::UnMapFilePages(const char *Base, uint64_t FileSize) {
+  assert(0 && "NOT IMPLEMENTED");
+}
+
 } // end llvm namespace
 

Modified: llvm/trunk/lib/System/Win32/Path.inc
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/System/Win32/Path.inc?rev=49030&r1=49029&r2=49030&view=diff

==============================================================================
--- llvm/trunk/lib/System/Win32/Path.inc (original)
+++ llvm/trunk/lib/System/Win32/Path.inc Tue Apr  1 01:00:12 2008
@@ -773,5 +773,15 @@
   return false;
 }
 
+/// MapInFilePages - Not yet implemented on win32.
+const char *Path::MapInFilePages(int FD, uint64_t FileSize) {
+  return 0;
+}
+
+/// MapInFilePages - Not yet implemented on win32.
+void Path::UnMapFilePages(const char *Base, uint64_t FileSize) {
+  assert(0 && "NOT IMPLEMENTED");
+}
+
 }
 }