vendor/lldb/lldb-r216948

1 files changed, 45 insertions, 0 deletions

diff --git a/include/lldb/Host/FileCache.h b/include/lldb/Host/FileCache.h
new file mode 100644
index 000000000000..779ff983de98
--- /dev/null
+++ b/include/lldb/Host/FileCache.h
@@ -0,0 +1,45 @@
+//===-- 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