Add support for MemoryBuffers that are not null terminated and add

support for creating buffers that cover only a part of a file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127409 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 2 deletions

diff --git a/include/llvm/Support/MemoryBuffer.h b/include/llvm/Support/MemoryBuffer.h
index b6243b7b10..a52dc11cff 100644
--- a/include/llvm/Support/MemoryBuffer.h
+++ b/include/llvm/Support/MemoryBuffer.h
@@ -40,7 +40,8 @@ class MemoryBuffer {
   MemoryBuffer &operator=(const MemoryBuffer &); // DO NOT IMPLEMENT
 protected:
   MemoryBuffer() {}
-  void init(const char *BufStart, const char *BufEnd);
+  void init(const char *BufStart, const char *BufEnd,
+            bool RequiresNullTerminator);
 public:
   virtual ~MemoryBuffer();
 
@@ -72,7 +73,10 @@ public:
   /// return a MemoryBuffer.
   static error_code getOpenFile(int FD, const char *Filename,
                                 OwningPtr<MemoryBuffer> &result,
-                                int64_t FileSize = -1);
+                                size_t FileSize = -1,
+                                size_t MapSize = -1,
+                                off_t Offset = 0,
+                                bool RequiresNullTerminator = true);
 
   /// getMemBuffer - Open the specified memory range as a MemoryBuffer.  Note
   /// that InputData must be null terminated.