another typo

[oota-llvm.git] / include / llvm / Support / MemoryBuffer.h

diff --git a/include/llvm/Support/MemoryBuffer.h b/include/llvm/Support/MemoryBuffer.h
index a52dc11cffa6922d6cfa258ecd4d39fd264e8a98..5e55bd981f0b24a3f6bfc1d98487d8785d5f5bec 100644 (file)
--- a/include/llvm/Support/MemoryBuffer.h
+++ b/include/llvm/Support/MemoryBuffer.h
@@ -64,10 +64,12 @@ public:
   /// specified, this means that the client knows that the file exists and that
   /// it has the specified size.
   static error_code getFile(StringRef Filename, OwningPtr<MemoryBuffer> &result,
-                            int64_t FileSize = -1);
+                            int64_t FileSize = -1,
+                            bool RequiresNullTerminator = true);
   static error_code getFile(const char *Filename,
                             OwningPtr<MemoryBuffer> &result,
-                            int64_t FileSize = -1);
+                            int64_t FileSize = -1,
+                            bool RequiresNullTerminator = true);
 
   /// getOpenFile - Given an already-open file descriptor, read the file and
   /// return a MemoryBuffer.
@@ -79,9 +81,10 @@ public:
                                 bool RequiresNullTerminator = true);
 
   /// getMemBuffer - Open the specified memory range as a MemoryBuffer.  Note
-  /// that InputData must be null terminated.
+  /// that InputData must be null terminated if RequiresNullTerminator is true.
   static MemoryBuffer *getMemBuffer(StringRef InputData,
-                                    StringRef BufferName = "");
+                                    StringRef BufferName = "",
+                                    bool RequiresNullTerminator = true);
 
   /// getMemBufferCopy - Open the specified memory range as a MemoryBuffer,
   /// copying the contents and taking ownership of it.  InputData does not
@@ -116,6 +119,21 @@ public:
   static error_code getFileOrSTDIN(const char *Filename,
                                    OwningPtr<MemoryBuffer> &result,
                                    int64_t FileSize = -1);
+  
+  
+  //===--------------------------------------------------------------------===//
+  // Provided for performance analysis.
+  //===--------------------------------------------------------------------===//
+
+  /// The kind of memory backing used to support the MemoryBuffer.
+  enum BufferKind {
+    MemoryBuffer_Malloc,
+    MemoryBuffer_MMap
+  };
+
+  /// Return information on the memory mechanism used to support the
+  /// MemoryBuffer.
+  virtual BufferKind getBufferKind() const = 0;  
 };
 
 } // end namespace llvm