bounce/examples/testbed/framework/json_profiler.cpp
2019-02-26 16:41:28 -03:00

122 lines
2.9 KiB
C++

/*
* Copyright (c) 2016-2019 Irlan Robson https://irlanrobson.github.io
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
* 3. This notice may not be removed or altered from any source distribution.
*/
#include <testbed/framework/json_profiler.h>
#define STRING(x) String(x, sizeof(x) - 1)
JsonProfiler::JsonProfiler()
{
m_file = nullptr;
m_stream = nullptr;
m_writer = nullptr;
}
JsonProfiler::~JsonProfiler()
{
}
void JsonProfiler::BeginEvents()
{
if (m_file)
{
return;
}
m_file = fopen("profile.json", "wt");
if (!m_file)
{
return;
}
static char buffer[512];
m_stream = new FileWriteStream(m_file, buffer, sizeof(buffer));
m_writer = new Writer<FileWriteStream>(*m_stream);
m_writer->StartObject();
m_writer->STRING("traceEvents");
m_writer->StartArray();
}
void JsonProfiler::EndEvents()
{
if (!m_writer)
{
return;
}
m_writer->EndArray();
m_writer->EndObject();
delete m_writer;
m_writer = nullptr;
delete m_stream;
m_stream = nullptr;
fclose(m_file);
m_file = nullptr;
}
void JsonProfiler::BeginEvent(i32 tid, i32 pid, const char* name, float64 t)
{
if (!m_writer)
{
return;
}
const char* phase = "B";
float64 scale = 1000.0;
m_writer->StartObject();
m_writer->STRING("pid"); m_writer->Int(pid);
m_writer->STRING("tid"); m_writer->Int(tid);
m_writer->STRING("ts"); m_writer->Int64((u64)(t * scale));
m_writer->STRING("ph"); m_writer->String(phase, 1);
m_writer->STRING("cat"); m_writer->STRING("physics");
m_writer->STRING("name"); m_writer->String(name, strlen(name));
m_writer->STRING("args"); m_writer->StartObject(); m_writer->EndObject();
m_writer->EndObject();
}
void JsonProfiler::EndEvent(i32 tid, i32 pid, const char* name, float64 t)
{
if (!m_writer)
{
return;
}
const char* phase = "E";
float64 scale = 1000.0;
m_writer->StartObject();
m_writer->STRING("pid"); m_writer->Int(pid);
m_writer->STRING("tid"); m_writer->Int(tid);
m_writer->STRING("ts"); m_writer->Int64((u64)(t * scale));
m_writer->STRING("ph"); m_writer->String(phase, 1);
m_writer->STRING("cat"); m_writer->STRING("physics");
m_writer->STRING("name"); m_writer->String(name, strlen(name));
m_writer->STRING("args"); m_writer->StartObject(); m_writer->EndObject();
m_writer->EndObject();
}
#undef STRING