contrib/llvm/tools/lldb/include/lldb/Interpreter/CommandHistory.h

   1 //===-- CommandHistory.h ----------------------------------------*- 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 liblldb_CommandHistory_h_
  11 #define liblldb_CommandHistory_h_
  12
  13 // C Includes
  14 // C++ Includes
  15 #include <string>
  16 #include <vector>
  17
  18 // Other libraries and framework includes
  19 // Project includes
  20 #include "lldb/lldb-private.h"
  21 #include "lldb/Core/Stream.h"
  22 #include "lldb/Host/Mutex.h"
  23
  24 namespace lldb_private {
  25
  26 class CommandHistory
  27 {
  28 public:
  29     CommandHistory ();
  30
  31     ~CommandHistory ();
  32
  33     size_t
  34     GetSize () const;
  35
  36     bool
  37     IsEmpty () const;
  38
  39     const char*
  40     FindString (const char* input_str) const;
  41
  42     const char*
  43     GetStringAtIndex (size_t idx) const;
  44
  45     const char*
  46     operator [] (size_t idx) const;
  47
  48     const char*
  49     GetRecentmostString () const;
  50
  51     void
  52     AppendString (const std::string& str,
  53                   bool reject_if_dupe = true);
  54
  55     void
  56     Clear ();
  57
  58     void
  59     Dump (Stream& stream,
  60           size_t start_idx = 0,
  61           size_t stop_idx = SIZE_MAX) const;
  62
  63     static const char g_repeat_char = '!';
  64
  65 private:
  66     DISALLOW_COPY_AND_ASSIGN(CommandHistory);
  67
  68     typedef std::vector<std::string> History;
  69     mutable Mutex m_mutex;
  70     History m_history;
  71 };
  72
  73 } // namespace lldb_private
  74
  75 #endif  // liblldb_CommandHistory_h_