ObjectCache.h revision 263508 
1//===-- ObjectCache.h - Class definition for the ObjectCache -----C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLVM_EXECUTIONENGINE_OBJECTCACHE_H
11#define LLVM_EXECUTIONENGINE_OBJECTCACHE_H
12
13#include "llvm/Support/MemoryBuffer.h"
14
15namespace llvm {
16
17class Module;
18
19/// This is the base ObjectCache type which can be provided to an
20/// ExecutionEngine for the purpose of avoiding compilation for Modules that
21/// have already been compiled and an object file is available.
22class ObjectCache {
23  virtual void anchor();
24public:
25  ObjectCache() { }
26
27  virtual ~ObjectCache() { }
28
29  /// notifyObjectCompiled - Provides a pointer to compiled code for Module M.
30  virtual void notifyObjectCompiled(const Module *M, const MemoryBuffer *Obj) = 0;
31
32  /// getObjectCopy - Returns a pointer to a newly allocated MemoryBuffer that
33  /// contains the object which corresponds with Module M, or 0 if an object is
34  /// not available. The caller owns both the MemoryBuffer returned by this
35  /// and the memory it references.
36  virtual MemoryBuffer* getObject(const Module* M) = 0;
37};
38
39}
40
41#endif
42