keep only the StringRef version of getFileOrSTDIN.

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

diff --git a/include/llvm/Support/MemoryBuffer.h b/include/llvm/Support/MemoryBuffer.h
index a52dc11cffa6922d6cfa258ecd4d39fd264e8a98..e443b684633c4714774917d7eb73b5b626842add 100644 (file)
--- a/include/llvm/Support/MemoryBuffer.h
+++ b/include/llvm/Support/MemoryBuffer.h
@@ -15,7 +15,10 @@
 #define LLVM_SUPPORT_MEMORYBUFFER_H
 
 #include "llvm/ADT/StringRef.h"
+#include "llvm/Support/CBindingWrapping.h"
+#include "llvm/Support/Compiler.h"
 #include "llvm/Support/DataTypes.h"
+#include "llvm-c/Core.h"
 
 namespace llvm {
 
@@ -36,8 +39,8 @@ class MemoryBuffer {
   const char *BufferStart; // Start of the buffer.
   const char *BufferEnd;   // End of the buffer.
 
-  MemoryBuffer(const MemoryBuffer &); // DO NOT IMPLEMENT
-  MemoryBuffer &operator=(const MemoryBuffer &); // DO NOT IMPLEMENT
+  MemoryBuffer(const MemoryBuffer &) LLVM_DELETED_FUNCTION;
+  MemoryBuffer &operator=(const MemoryBuffer &) LLVM_DELETED_FUNCTION;
 protected:
   MemoryBuffer() {}
   void init(const char *BufStart, const char *BufEnd,
@@ -64,24 +67,27 @@ 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.
   static error_code getOpenFile(int FD, const char *Filename,
                                 OwningPtr<MemoryBuffer> &result,
-                                size_t FileSize = -1,
-                                size_t MapSize = -1,
-                                off_t Offset = 0,
+                                uint64_t FileSize = -1,
+                                uint64_t MapSize = -1,
+                                int64_t Offset = 0,
                                 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
@@ -113,11 +119,25 @@ public:
   static error_code getFileOrSTDIN(StringRef Filename,
                                    OwningPtr<MemoryBuffer> &result,
                                    int64_t FileSize = -1);
-  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;  
 };
 
+// Create wrappers for C Binding types (see CBindingWrapping.h).
+DEFINE_SIMPLE_CONVERSION_FUNCTIONS(MemoryBuffer, LLVMMemoryBufferRef)
+
 } // end namespace llvm
 
 #endif