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