hphp/hhbbc/stats.h

   1 /*
   2    +----------------------------------------------------------------------+
   3    | HipHop for PHP                                                       |
   4    +----------------------------------------------------------------------+
   5    | Copyright (c) 2010-present Facebook, Inc. (http://www.facebook.com)  |
   6    +----------------------------------------------------------------------+
   7    | This source file is subject to version 3.01 of the PHP license,      |
   8    | that is bundled with this package in the file LICENSE, and is        |
   9    | available through the world-wide-web at the following url:           |
  10    | http://www.php.net/license/3_01.txt                                  |
  11    | If you did not receive a copy of the PHP license and are unable to   |
  12    | obtain it through the world-wide-web, please send a note to          |
  13    | license@php.net so we can mail you a copy immediately.               |
  14    +----------------------------------------------------------------------+
  15 */
  16 #pragma once
  17
  18 namespace HPHP { namespace HHBBC {
  19
  20 struct Stats;
  21
  22 struct StatsHolder {
  23   StatsHolder();
  24   ~StatsHolder();
  25   StatsHolder(StatsHolder&& o) noexcept : stats{o.stats} { o.stats = nullptr; }
  26   StatsHolder(const StatsHolder&) = delete;
  27   StatsHolder& operator=(const StatsHolder&) = delete;
  28   StatsHolder& operator=(StatsHolder&&) = delete;
  29
  30   operator bool() const { return stats; }
  31
  32   Stats* stats{};
  33 };
  34
  35 namespace php {
  36 struct Program;
  37 struct Unit;
  38 }
  39 struct Index;
  40
  41 //////////////////////////////////////////////////////////////////////
  42
  43 /*
  44  * If Trace::hhbbc_time >= 1, print some stats about the program to a
  45  * temporary file.  If it's greater than or equal to 2, also dump it
  46  * to stdout.
  47  */
  48 StatsHolder allocate_stats();
  49 void collect_stats(const StatsHolder&, const Index&, const php::Unit*);
  50 void print_stats(const StatsHolder&);
  51
  52 //////////////////////////////////////////////////////////////////////
  53
  54 }}
  55