//===-- FileCache.h ---------------------------------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef liblldb_Host_FileCache_h
#define liblldb_Host_FileCache_h

#include <stdint.h>

#include "lldb/lldb-forward.h"
#include "lldb/lldb-types.h"

#include "lldb/Core/Error.h"
#include "lldb/Host/FileSpec.h"

namespace lldb_private
{
class FileCache
{
  private:
    FileCache() {}

    typedef std::map<lldb::user_id_t, lldb::FileSP> FDToFileMap;

  public:
    static FileCache &GetInstance();

    lldb::user_id_t OpenFile(const FileSpec &file_spec, uint32_t flags, uint32_t mode, Error &error);
    bool CloseFile(lldb::user_id_t fd, Error &error);

    uint64_t WriteFile(lldb::user_id_t fd, uint64_t offset, const void *src, uint64_t src_len, Error &error);
    uint64_t ReadFile(lldb::user_id_t fd, uint64_t offset, void *dst, uint64_t dst_len, Error &error);

  private:
    static FileCache *m_instance;

    FDToFileMap m_cache;
};
}

#endif
