| // -*- C++ -*- |
| // |
| // Copyright (C) 2009 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the terms |
| // of the GNU General Public License as published by the Free Software |
| // Foundation; either version 2, or (at your option) any later |
| // version. |
| |
| // This library is distributed in the hope that it will be useful, but |
| // WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| // General Public License for more details. |
| |
| // You should have received a copy of the GNU General Public License |
| // along with this library; see the file COPYING. If not, write to |
| // the Free Software Foundation, 59 Temple Place - Suite 330, Boston, |
| // MA 02111-1307, USA. |
| |
| // As a special exception, you may use this file as part of a free |
| // software library without restriction. Specifically, if other files |
| // instantiate templates or use macros or inline functions from this |
| // file, or you compile this file and link it with other files to |
| // produce an executable, this file does not by itself cause the |
| // resulting executable to be covered by the GNU General Public |
| // License. This exception does not however invalidate any other |
| // reasons why the executable file might be covered by the GNU General |
| // Public License. |
| |
| /** @file profile/impl/profiler_node.h |
| * @brief Data structures to represent a single profiling event. |
| */ |
| |
| // Written by Lixia Liu and Silvius Rus. |
| |
| #ifndef _GLIBCXX_PROFILE_PROFILER_NODE_H |
| #define _GLIBCXX_PROFILE_PROFILER_NODE_H 1 |
| |
| #ifdef __GXX_EXPERIMENTAL_CXX0X__ |
| #include <cstdio> |
| #include <cstdint> |
| #include <cstring> |
| #else |
| #include <stdio.h> |
| #include <stdint.h> |
| #include <string.h> |
| #endif |
| #include <vector> |
| #if defined _GLIBCXX_HAVE_EXECINFO_H |
| #include <execinfo.h> |
| #endif |
| |
| namespace __gnu_profile |
| { |
| typedef const void* __object_t; |
| typedef void* __instruction_address_t; |
| typedef std::_GLIBCXX_STD_PR::vector<__instruction_address_t> __stack_npt; |
| typedef __stack_npt* __stack_t; |
| |
| size_t __stack_max_depth(); |
| |
| inline __stack_t __get_stack() |
| { |
| #if defined _GLIBCXX_HAVE_EXECINFO_H |
| size_t __max_depth = __stack_max_depth(); |
| if (__max_depth == 0) |
| return NULL; |
| __stack_npt __buffer(__max_depth); |
| int __depth = backtrace(&__buffer[0], __max_depth); |
| __stack_t __stack = new __stack_npt(__depth); |
| memcpy(&(*__stack)[0], &__buffer[0], __depth * sizeof(__object_t)); |
| return __stack; |
| #else |
| return NULL; |
| #endif |
| } |
| |
| inline __size(const __stack_t& __stack) |
| { |
| if (!__stack) { |
| return 0; |
| } else { |
| return __stack->size(); |
| } |
| } |
| |
| inline void __write(FILE* __f, const __stack_t __stack) |
| { |
| if (!__stack) { |
| return; |
| } |
| |
| __stack_npt::const_iterator __it; |
| for (__it = __stack->begin(); __it != __stack->end(); ++__it) { |
| fprintf(__f, "%p ", *__it); |
| } |
| } |
| |
| /** @brief Hash function for summary trace using call stack as index. */ |
| class __stack_hash |
| { |
| public: |
| size_t operator()(const __stack_t __s) const |
| { |
| if (!__s) { |
| return 0; |
| } |
| |
| uintptr_t __index = 0; |
| __stack_npt::const_iterator __it; |
| for (__it = __s->begin(); __it != __s->end(); ++__it) { |
| __index += reinterpret_cast<uintptr_t>(*__it); |
| } |
| return __index; |
| } |
| |
| bool operator() (const __stack_t __stack1, const __stack_t __stack2) const |
| { |
| if (!__stack1 && !__stack2) return true; |
| if (!__stack1 || !__stack2) return false; |
| if (__stack1->size() != __stack2->size()) return false; |
| |
| size_t __byte_size = __stack1->size() * sizeof(__stack_npt::value_type); |
| return memcmp(&(*__stack1)[0], &(*__stack2)[0], __byte_size) == 0; |
| } |
| }; |
| |
| /** @brief Base class for a line in the object table. */ |
| class __object_info_base |
| { |
| public: |
| __object_info_base() {} |
| __object_info_base(__stack_t __stack); |
| __object_info_base(const __object_info_base& o); |
| virtual ~__object_info_base() {} |
| bool __is_valid() const { return _M_valid; } |
| __stack_t __stack() const { return _M_stack; } |
| virtual void __write(FILE* f) const = 0; |
| |
| protected: |
| __stack_t _M_stack; |
| bool _M_valid; |
| }; |
| |
| inline __object_info_base::__object_info_base(__stack_t __stack) |
| { |
| _M_stack = __stack; |
| _M_valid = true; |
| } |
| |
| inline __object_info_base::__object_info_base(const __object_info_base& __o) |
| { |
| _M_stack = __o._M_stack; |
| _M_valid = __o._M_valid; |
| } |
| |
| /** @brief Base class for a line in the stack table. */ |
| template<typename __object_info> |
| class __stack_info_base |
| { |
| public: |
| __stack_info_base() {} |
| __stack_info_base(const __object_info& __info) = 0; |
| virtual ~__stack_info_base() {} |
| void __merge(const __object_info& __info) = 0; |
| virtual float __magnitude() const = 0; |
| virtual const char* __get_id() const = 0; |
| }; |
| |
| } // namespace __gnu_profile |
| #endif /* _GLIBCXX_PROFILE_PROFILER_NODE_H */ |