--- /dev/null
+// -*- 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 3, 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.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+/** @file profile/impl/profiler_list_to_slist.h
+ * @brief Diagnostics for list to slist.
+ */
+
+// Written by Changhee Jung.
+
+#ifndef _GLIBCXX_PROFILE_PROFILER_LIST_TO_SLIST_H
+#define _GLIBCXX_PROFILE_PROFILER_LIST_TO_SLIST_H 1
+
+#include "profile/impl/profiler.h"
+#include "profile/impl/profiler_node.h"
+#include "profile/impl/profiler_trace.h"
+
+namespace __gnu_profile
+{
+ class __list2slist_info
+ : public __object_info_base
+ {
+ public:
+ __list2slist_info()
+ : _M_rewind(false), _M_operations(0) { }
+
+ __list2slist_info(__stack_t __stack)
+ : __object_info_base(__stack), _M_rewind(false), _M_operations(0) { }
+
+ virtual ~__list2slist_info() { }
+
+ __list2slist_info(const __list2slist_info& __o)
+ : __object_info_base(__o), _M_rewind(__o._M_rewind),
+ _M_operations(__o._M_operations) { }
+
+ // XXX: the magnitude should be multiplied with a constant factor F,
+ // where F is 1 when the malloc size class of list nodes is different
+ // from the malloc size class of slist nodes. When they fall into the same
+ // class, the only slist benefit is from having to set fewer links, so
+ // the factor F should be much smaller, closer to 0 than to 1.
+ // This could be implemented by passing the size classes in the config
+ // file. For now, we always assume F to be 1.
+
+ float
+ __magnitude() const
+ {
+ if (!_M_rewind)
+ return _M_operations;
+ else
+ return 0;
+ }
+
+ void
+ __merge(const __list2slist_info&) { }
+
+ void
+ __write(FILE* __f) const
+ { std::fprintf(__f, "%s\n", _M_rewind ? "invalid" : "valid"); }
+
+ std::string
+ __advice() const
+ { return "change std::list to std::forward_list"; }
+
+ void
+ __opr_rewind()
+ {
+ _M_rewind = true;
+ _M_valid = false;
+ }
+
+ void
+ __record_operation()
+ { ++_M_operations; }
+
+ bool
+ __has_rewind()
+ { return _M_rewind; }
+
+ private:
+ bool _M_rewind;
+ std::size_t _M_operations;
+ };
+
+ class __list2slist_stack_info
+ : public __list2slist_info
+ {
+ public:
+ __list2slist_stack_info(const __list2slist_info& __o)
+ : __list2slist_info(__o) { }
+ };
+
+ class __trace_list_to_slist
+ : public __trace_base<__list2slist_info, __list2slist_stack_info>
+ {
+ public:
+ ~__trace_list_to_slist() { }
+
+ __trace_list_to_slist()
+ : __trace_base<__list2slist_info, __list2slist_stack_info>()
+ { __id = "list-to-slist"; }
+
+ void
+ __opr_rewind(const void* __obj)
+ {
+ __list2slist_info* __res = __get_object_info(__obj);
+ if (__res)
+ __res->__opr_rewind();
+ }
+
+ void
+ __record_operation(const void* __obj)
+ {
+ __list2slist_info* __res = __get_object_info(__obj);
+ if (__res)
+ __res->__record_operation();
+ }
+
+ void
+ __insert(const __object_t __obj, __stack_t __stack)
+ { __add_object(__obj, __list2slist_info(__stack)); }
+
+ void
+ __destruct(const void* __obj)
+ {
+ if (!__is_on())
+ return;
+
+ __list2slist_info* __res = __get_object_info(__obj);
+ if (!__res)
+ return;
+
+ __retire_object(__obj);
+ }
+ };
+
+
+ inline void
+ __trace_list_to_slist_init()
+ { _GLIBCXX_PROFILE_DATA(_S_list_to_slist) = new __trace_list_to_slist(); }
+
+ inline void
+ __trace_list_to_slist_report(FILE* __f, __warning_vector_t& __warnings)
+ {
+ if (_GLIBCXX_PROFILE_DATA(_S_list_to_slist))
+ {
+ _GLIBCXX_PROFILE_DATA(_S_list_to_slist)->
+ __collect_warnings(__warnings);
+ _GLIBCXX_PROFILE_DATA(_S_list_to_slist)->__write(__f);
+ }
+ }
+
+ inline void
+ __trace_list_to_slist_rewind(const void* __obj)
+ {
+ if (!__profcxx_init())
+ return;
+
+ _GLIBCXX_PROFILE_DATA(_S_list_to_slist)->__opr_rewind(__obj);
+ }
+
+ inline void
+ __trace_list_to_slist_operation(const void* __obj)
+ {
+ if (!__profcxx_init())
+ return;
+
+ _GLIBCXX_PROFILE_DATA(_S_list_to_slist)->__record_operation(__obj);
+ }
+
+ inline void
+ __trace_list_to_slist_construct(const void* __obj)
+ {
+ if (!__profcxx_init())
+ return;
+
+ _GLIBCXX_PROFILE_DATA(_S_list_to_slist)->__insert(__obj, __get_stack());
+ }
+
+ inline void
+ __trace_list_to_slist_destruct(const void* __obj)
+ {
+ if (!__profcxx_init())
+ return;
+
+ _GLIBCXX_PROFILE_DATA(_S_list_to_slist)->__destruct(__obj);
+ }
+
+} // namespace __gnu_profile
+#endif /* _GLIBCXX_PROFILE_PROFILER_LIST_TO_SLIST_H */
projects / cross.git / blobdiff