src/apps/cortex/support/ProfileBlock.h

   1 /*
   2  * Copyright (c) 1999-2000, Eric Moon.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions, and the following disclaimer.
  11  *
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions, and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * 3. The name of the author may not be used to endorse or promote products
  17  *    derived from this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
  20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  21  * OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  23  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  24  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  25  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  26  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  27  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31
  32 // ProfileBlock.h
  33 // e.moon 19may99
  34 //
  35 // Quick'n'dirty profiling tool: create a ProfileBlock on the
  36 // stack, giving it a name and a ProfileTarget to reference.
  37 // Automatically writes an entry in the target once the
  38 // object goes out of scope.
  39
  40 #ifndef __PROFILEBLOCK_H__
  41 #define __PROFILEBLOCK_H__
  42
  43 #include "ProfileTarget.h"
  44 #include <KernelKit.h>
  45
  46 #include "cortex_defs.h"
  47 __BEGIN_CORTEX_NAMESPACE
  48
  49 class ProfileBlock {
  50 public:                                 // ctor/dtor
  51         ProfileBlock(ProfileTarget& target, const char* name) :
  52                 m_target(target),
  53                 m_name(name),
  54                 m_initTime(system_time()) {}
  55
  56         ~ProfileBlock() {
  57                 m_target.addBlockEntry(m_name, system_time()-m_initTime);
  58         }
  59
  60 private:
  61         ProfileTarget&          m_target;
  62         const char* const               m_name;
  63         bigtime_t                                       m_initTime;
  64 };
  65
  66 __END_CORTEX_NAMESPACE
  67 #endif /* __PROFILEBLOCK_H__ */