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[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc3/] [libstdc++-v3/] [include/] [profile/] [impl/] [profiler_hash_func.h] - Rev 516
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// -*- C++ -*- // // Copyright (C) 2009, 2010 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_trace.h * @brief Data structures to represent profiling traces. */ // Written by Lixia Liu and Silvius Rus. #ifndef _GLIBCXX_PROFILE_PROFILER_HASH_FUNC_H #define _GLIBCXX_PROFILE_PROFILER_HASH_FUNC_H 1 #ifdef __GXX_EXPERIMENTAL_CXX0X__ #include <cstdlib> #include <cstdio> #include <cstring> #else #include <stdlib.h> #include <stdio.h> #include <string.h> #endif #include "profile/impl/profiler.h" #include "profile/impl/profiler_node.h" #include "profile/impl/profiler_trace.h" namespace __gnu_profile { /** @brief A hash performance instrumentation line in the object table. */ class __hashfunc_info: public __object_info_base { public: __hashfunc_info() :_M_longest_chain(0), _M_accesses(0), _M_hops(0) {} __hashfunc_info(const __hashfunc_info& o); __hashfunc_info(__stack_t __stack) : __object_info_base(__stack), _M_longest_chain(0), _M_accesses(0), _M_hops(0){} virtual ~__hashfunc_info() {} void __merge(const __hashfunc_info& __o); void __destruct(size_t __chain, size_t __accesses, size_t __hops); void __write(FILE* __f) const; float __magnitude() const { return static_cast<float>(_M_hops); } const char* __advice() const { return strdup("change hash function"); } private: size_t _M_longest_chain; size_t _M_accesses; size_t _M_hops; }; inline __hashfunc_info::__hashfunc_info(const __hashfunc_info& __o) : __object_info_base(__o) { _M_longest_chain = __o._M_longest_chain; _M_accesses = __o._M_accesses; _M_hops = __o._M_hops; } inline void __hashfunc_info::__merge(const __hashfunc_info& __o) { _M_longest_chain = std::max(_M_longest_chain, __o._M_longest_chain); _M_accesses += __o._M_accesses; _M_hops += __o._M_hops; } inline void __hashfunc_info::__destruct(size_t __chain, size_t __accesses, size_t __hops) { _M_longest_chain = std::max(_M_longest_chain, __chain); _M_accesses += __accesses; _M_hops += __hops; } /** @brief A hash performance instrumentation line in the stack table. */ class __hashfunc_stack_info: public __hashfunc_info { public: __hashfunc_stack_info(const __hashfunc_info& __o) : __hashfunc_info(__o) {} }; /** @brief Hash performance instrumentation producer. */ class __trace_hash_func : public __trace_base<__hashfunc_info, __hashfunc_stack_info> { public: __trace_hash_func(); ~__trace_hash_func() {} // Insert a new node at construct with object, callstack and initial size. void __insert(__object_t __obj, __stack_t __stack); // Call at destruction/clean to set container final size. void __destruct(const void* __obj, size_t __chain, size_t __accesses, size_t __hops); }; inline __trace_hash_func::__trace_hash_func() : __trace_base<__hashfunc_info, __hashfunc_stack_info>() { __id = "hash-distr"; } inline void __trace_hash_func::__insert(__object_t __obj, __stack_t __stack) { __add_object(__obj, __hashfunc_info(__stack)); } inline void __hashfunc_info::__write(FILE* __f) const { fprintf(__f, "%Zu %Zu %Zu\n", _M_hops, _M_accesses, _M_longest_chain); } inline void __trace_hash_func::__destruct(const void* __obj, size_t __chain, size_t __accesses, size_t __hops) { if (!__is_on()) return; // First find the item from the live objects and update the informations. __hashfunc_info* __objs = __get_object_info(__obj); if (!__objs) return; __objs->__destruct(__chain, __accesses, __hops); __retire_object(__obj); } inline void __trace_hash_func_init() { _GLIBCXX_PROFILE_DATA(_S_hash_func) = new __trace_hash_func(); } inline void __trace_hash_func_report(FILE* __f, __warning_vector_t& __warnings) { if (_GLIBCXX_PROFILE_DATA(_S_hash_func)) { _GLIBCXX_PROFILE_DATA(_S_hash_func)->__collect_warnings(__warnings); _GLIBCXX_PROFILE_DATA(_S_hash_func)->__write(__f); } } inline void __trace_hash_func_construct(const void* __obj) { if (!__profcxx_init()) return; _GLIBCXX_PROFILE_DATA(_S_hash_func)->__insert(__obj, __get_stack()); } inline void __trace_hash_func_destruct(const void* __obj, size_t __chain, size_t __accesses, size_t __hops) { if (!__profcxx_init()) return; _GLIBCXX_PROFILE_DATA(_S_hash_func)->__destruct(__obj, __chain, __accesses, __hops); } } // namespace __gnu_profile #endif /* _GLIBCXX_PROFILE_PROFILER_HASH_FUNC_H */