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C++

/**
Lightweight profiler library for c++
Copyright(C) 2016 Sergey Yagovtsev, Victor Zarubkin
This program 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 of the License, or
(at your option) any later version.
This program 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 program.If not, see <http://www.gnu.org/licenses/>.
**/
#ifndef PROFILER_READER____H
#define PROFILER_READER____H
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#include <unordered_map>
#include <vector>
#include <string>
#include <atomic>
#include "easy/profiler.h"
#include "easy/serialized_block.h"
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
namespace profiler {
typedef uint32_t calls_number_t;
typedef uint32_t block_index_t;
#pragma pack(push, 1)
struct BlockStatistics EASY_FINAL
{
::profiler::timestamp_t total_duration; ///< Summary duration of all block calls
::profiler::timestamp_t min_duration; ///< Cached block->duration() value. TODO: Remove this if memory consumption will be too high
::profiler::timestamp_t max_duration; ///< Cached block->duration() value. TODO: Remove this if memory consumption will be too high
::profiler::block_index_t min_duration_block; ///< Will be used in GUI to jump to the block with min duration
::profiler::block_index_t max_duration_block; ///< Will be used in GUI to jump to the block with max duration
::profiler::block_index_t parent_block; ///< Index of block which is "parent" for "per_parent_stats" or "frame" for "per_frame_stats" or thread-id for "per_thread_stats"
::profiler::calls_number_t calls_number; ///< Block calls number
explicit BlockStatistics(::profiler::timestamp_t _duration, ::profiler::block_index_t _block_index, ::profiler::block_index_t _parent_index)
: total_duration(_duration)
, min_duration(_duration)
, max_duration(_duration)
, min_duration_block(_block_index)
, max_duration_block(_block_index)
, parent_block(_parent_index)
, calls_number(1)
{
}
//BlockStatistics() = default;
inline ::profiler::timestamp_t average_duration() const
{
return total_duration / calls_number;
}
}; // END of struct BlockStatistics.
#pragma pack(pop)
extern "C" PROFILER_API void release_stats(BlockStatistics*& _stats);
//////////////////////////////////////////////////////////////////////////
class BlocksTree EASY_FINAL
{
typedef BlocksTree This;
public:
typedef ::std::vector<This> blocks_t;
typedef ::std::vector<::profiler::block_index_t> children_t;
children_t children; ///< List of children blocks. May be empty.
::profiler::SerializedBlock* node; ///< Pointer to serilized data (type, name, begin, end etc.)
::profiler::BlockStatistics* per_parent_stats; ///< Pointer to statistics for this block within the parent (may be nullptr for top-level blocks)
::profiler::BlockStatistics* per_frame_stats; ///< Pointer to statistics for this block within the frame (may be nullptr for top-level blocks)
::profiler::BlockStatistics* per_thread_stats; ///< Pointer to statistics for this block within the bounds of all frames per current thread
uint16_t depth; ///< Maximum number of sublevels (maximum children depth)
BlocksTree()
: node(nullptr)
, per_parent_stats(nullptr)
, per_frame_stats(nullptr)
, per_thread_stats(nullptr)
, depth(0)
{
}
BlocksTree(This&& that) : BlocksTree()
{
make_move(::std::forward<This&&>(that));
}
This& operator = (This&& that)
{
make_move(::std::forward<This&&>(that));
return *this;
}
~BlocksTree()
{
release_stats(per_thread_stats);
release_stats(per_parent_stats);
release_stats(per_frame_stats);
}
bool operator < (const This& other) const
{
if (!node || !other.node)
return false;
return node->begin() < other.node->begin();
}
void shrink_to_fit()
{
//for (auto& child : children)
// child.shrink_to_fit();
// shrink version 1:
//children.shrink_to_fit();
// shrink version 2:
//children_t new_children;
//new_children.reserve(children.size());
//::std::move(children.begin(), children.end(), ::std::back_inserter(new_children));
//new_children.swap(children);
}
private:
BlocksTree(const This&) = delete;
This& operator = (const This&) = delete;
void make_move(This&& that)
{
if (per_thread_stats != that.per_thread_stats)
release_stats(per_thread_stats);
if (per_parent_stats != that.per_parent_stats)
release_stats(per_parent_stats);
if (per_frame_stats != that.per_frame_stats)
release_stats(per_frame_stats);
children = ::std::move(that.children);
node = that.node;
per_parent_stats = that.per_parent_stats;
per_frame_stats = that.per_frame_stats;
per_thread_stats = that.per_thread_stats;
depth = that.depth;
that.node = nullptr;
that.per_parent_stats = nullptr;
that.per_frame_stats = nullptr;
that.per_thread_stats = nullptr;
}
}; // END of class BlocksTree.
//////////////////////////////////////////////////////////////////////////
class BlocksTreeRoot EASY_FINAL
{
typedef BlocksTreeRoot This;
public:
BlocksTree::children_t children; ///< List of children indexes
BlocksTree::children_t sync; ///< List of context-switch events
BlocksTree::children_t events; ///< List of events indexes
std::string thread_name; ///< Name of this thread
::profiler::timestamp_t active_time; ///< Active time of this thread (sum of all children duration)
::profiler::thread_id_t thread_id; ///< System Id of this thread
uint16_t depth; ///< Maximum stack depth (number of levels)
BlocksTreeRoot() : thread_name(""), active_time(0), thread_id(0), depth(0)
{
}
BlocksTreeRoot(This&& that)
: children(::std::move(that.children))
, sync(::std::move(that.sync))
, events(::std::move(that.events))
, thread_name(::std::move(that.thread_name))
, active_time(that.active_time)
, thread_id(that.thread_id)
, depth(that.depth)
{
}
This& operator = (This&& that)
{
children = ::std::move(that.children);
sync = ::std::move(that.sync);
events = ::std::move(that.events);
thread_name = ::std::move(that.thread_name);
active_time = that.active_time;
thread_id = that.thread_id;
depth = that.depth;
return *this;
}
inline bool got_name() const
{
return thread_name.front() != 0;
}
inline const char* name() const
{
return thread_name.c_str();
}
bool operator < (const This& other) const
{
return thread_id < other.thread_id;
}
private:
BlocksTreeRoot(const This&) = delete;
This& operator = (const This&) = delete;
}; // END of class BlocksTreeRoot.
typedef ::profiler::BlocksTree::blocks_t blocks_t;
typedef ::std::unordered_map<::profiler::thread_id_t, ::profiler::BlocksTreeRoot, ::profiler::passthrough_hash> thread_blocks_tree_t;
//////////////////////////////////////////////////////////////////////////
class PROFILER_API SerializedData EASY_FINAL
{
char* m_data;
size_t m_size;
public:
SerializedData() : m_data(nullptr), m_size(0)
{
}
SerializedData(SerializedData&& that) : m_data(that.m_data), m_size(that.m_size)
{
that.m_data = nullptr;
that.m_size = 0;
}
~SerializedData()
{
clear();
}
void set(uint64_t _size);
void extend(uint64_t _size);
SerializedData& operator = (SerializedData&& that)
{
set(that.m_data, that.m_size);
that.m_data = nullptr;
that.m_size = 0;
return *this;
}
char* operator [] (uint64_t i)
{
return m_data + i;
}
const char* operator [] (uint64_t i) const
{
return m_data + i;
}
bool empty() const
{
return m_size == 0;
}
uint64_t size() const
{
return m_size;
}
char* data()
{
return m_data;
}
const char* data() const
{
return m_data;
}
void clear()
{
set(nullptr, 0);
}
void swap(SerializedData& other)
{
char* d = other.m_data;
uint64_t sz = other.m_size;
other.m_data = m_data;
other.m_size = m_size;
m_data = d;
m_size = sz;
}
private:
void set(char* _data, uint64_t _size);
SerializedData(const SerializedData&) = delete;
SerializedData& operator = (const SerializedData&) = delete;
}; // END of class SerializedData.
//////////////////////////////////////////////////////////////////////////
struct FileData
{
::profiler::SerializedData serialized_blocks;
::profiler::SerializedData serialized_descriptors;
::std::vector<::profiler::thread_id_t> threads_order;
::profiler::timestamp_t begin_time = 0ULL;
::profiler::timestamp_t end_time = 0ULL;
int64_t cpu_frequency = 0LL;
uint32_t total_blocks_number = 0;
uint32_t total_descriptors_number = 0;
FileData() = default;
FileData(FileData&& _other)
: serialized_blocks(::std::move(_other.serialized_blocks))
, serialized_descriptors(::std::move(_other.serialized_descriptors))
, threads_order(::std::move(_other.threads_order))
, begin_time(_other.begin_time)
, end_time(_other.end_time)
, cpu_frequency(_other.cpu_frequency)
, total_blocks_number(_other.total_blocks_number)
, total_descriptors_number(_other.total_descriptors_number)
{
}
FileData& operator = (FileData&& _other)
{
serialized_blocks = ::std::move(_other.serialized_blocks);
serialized_descriptors = ::std::move(_other.serialized_descriptors);
threads_order = ::std::move(_other.threads_order);
begin_time = _other.begin_time;
end_time = _other.end_time;
cpu_frequency = _other.cpu_frequency;
total_blocks_number = _other.total_blocks_number;
total_descriptors_number = _other.total_descriptors_number;
return *this;
}
private:
FileData(const FileData&) = delete;
FileData& operator = (const FileData&) = delete;
};
//////////////////////////////////////////////////////////////////////////
typedef ::std::vector<SerializedBlockDescriptor*> descriptors_list_t;
} // END of namespace profiler.
extern "C" {
PROFILER_API ::profiler::block_index_t fillTreesFromFile(::std::atomic<int>& progress, const char* filename,
::profiler::SerializedData& serialized_blocks,
::profiler::SerializedData& serialized_descriptors,
::profiler::descriptors_list_t& descriptors,
::profiler::blocks_t& _blocks,
::profiler::thread_blocks_tree_t& threaded_trees,
uint32_t& total_descriptors_number,
bool gather_statistics,
::std::stringstream& _log);
PROFILER_API ::profiler::block_index_t fillTreesFromStream(::std::atomic<int>& progress, ::std::stringstream& str,
::profiler::SerializedData& serialized_blocks,
::profiler::SerializedData& serialized_descriptors,
::profiler::descriptors_list_t& descriptors,
::profiler::blocks_t& _blocks,
::profiler::thread_blocks_tree_t& threaded_trees,
uint32_t& total_descriptors_number,
bool gather_statistics,
::std::stringstream& _log);
PROFILER_API bool readDescriptionsFromStream(::std::atomic<int>& progress, ::std::stringstream& str,
::profiler::SerializedData& serialized_descriptors,
::profiler::descriptors_list_t& descriptors,
::std::stringstream& _log);
}
inline ::profiler::block_index_t fillTreesFromFile(const char* filename, ::profiler::SerializedData& serialized_blocks,
::profiler::SerializedData& serialized_descriptors,
::profiler::descriptors_list_t& descriptors, ::profiler::blocks_t& _blocks,
::profiler::thread_blocks_tree_t& threaded_trees,
uint32_t& total_descriptors_number,
bool gather_statistics,
::std::stringstream& _log)
{
::std::atomic<int> progress = ATOMIC_VAR_INIT(0);
return fillTreesFromFile(progress, filename, serialized_blocks, serialized_descriptors, descriptors, _blocks, threaded_trees, total_descriptors_number, gather_statistics, _log);
}
inline bool readDescriptionsFromStream(::std::stringstream& str,
::profiler::SerializedData& serialized_descriptors,
::profiler::descriptors_list_t& descriptors,
::std::stringstream& _log)
{
::std::atomic<int> progress = ATOMIC_VAR_INIT(0);
return readDescriptionsFromStream(progress, str, serialized_descriptors, descriptors, _log);
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#endif // PROFILER_READER____H