gdb/maint.h

   1 /* Support for GDB maintenance commands.
   2    Copyright (C) 2013-2021 Free Software Foundation, Inc.
   3
   4    This file is part of GDB.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef MAINT_H
  20 #define MAINT_H
  21
  22 #include "gdbsupport/run-time-clock.h"
  23 #include <chrono>
  24
  25 extern void set_per_command_time (int);
  26
  27 extern void set_per_command_space (int);
  28
  29 /* Records a run time and space usage to be used as a base for
  30    reporting elapsed time or change in space.  */
  31
  32 class scoped_command_stats
  33 {
  34  public:
  35
  36   explicit scoped_command_stats (bool msg_type);
  37   ~scoped_command_stats ();
  38
  39  private:
  40
  41   DISABLE_COPY_AND_ASSIGN (scoped_command_stats);
  42
  43   /* Print the time, along with a string.  */
  44   void print_time (const char *msg);
  45
  46   /* Zero if the saved time is from the beginning of GDB execution.
  47      One if from the beginning of an individual command execution.  */
  48   bool m_msg_type;
  49   /* Track whether the stat was enabled at the start of the command
  50      so that we can avoid printing anything if it gets turned on by
  51      the current command.  */
  52   int m_time_enabled : 1;
  53   int m_space_enabled : 1;
  54   int m_symtab_enabled : 1;
  55   run_time_clock::time_point m_start_cpu_time;
  56   std::chrono::steady_clock::time_point m_start_wall_time;
  57   long m_start_space;
  58   /* Total number of symtabs (over all objfiles).  */
  59   int m_start_nr_symtabs;
  60   /* A count of the compunits.  */
  61   int m_start_nr_compunit_symtabs;
  62   /* Total number of blocks.  */
  63   int m_start_nr_blocks;
  64 };
  65
  66 #endif /* MAINT_H */