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60鱼币
本帖最后由 御坂19090 于 2023-3-20 13:07 编辑
拖进去。什么反应都没有
开始打开是这样,"C:\\Users\\misaka\\Desktop\\QQ录屏20230319233349.mp4"。运行这个得到的#include <iostream>
#include <string>
#include <chrono>
#include <algorithm>
#include <fstream>
#include <cmath>
//配置文件结果
struct ProfileResult
{
std::string Name;
long long Start, End;
};
//检测会话
struct InstrumentationSession
{
std::string Name;
};
//格式化一个json文件,并将其写入一个文件
class Instrumentor
{
private:
//当前会话
InstrumentationSession* m_CurrentSession;
//输出流
std::ofstream m_OutputStream;
//配置文件计数
int m_ProfileCount;
public:
Instrumentor()
: m_CurrentSession(nullptr), m_ProfileCount(0)
{}
//创建一个有给定文件名的新文件;默认results.json
void BeginSession(const std::string& name, const std::string filepath = "results.json")
{
//打开一个文件
m_OutputStream.open(filepath);
WriteHeader();
m_CurrentSession = new InstrumentationSession{ name };
}
//写了一个简单的页脚,关闭文件等等事情
void EndSession()
{
WriteFooter();
m_OutputStream.close();
delete m_CurrentSession;
m_CurrentSession = nullptr;
m_ProfileCount = 0;
}
//写时间分析数据
void WriteProfile(const ProfileResult& result)
{
if (m_ProfileCount++ > 0)
m_OutputStream << ",";
std::string name = result.Name;
std::replace(name.begin(), name.end(), '"', ',');
m_OutputStream << "{";
m_OutputStream << ""cat": "function",";
m_OutputStream << ""dur":" << (result.End - result.Start) << ',';
m_OutputStream << ""name":"" << name << "",";
m_OutputStream << ""ph":"X",";
m_OutputStream << ""pid":0,";
m_OutputStream << ""tid":0,";
m_OutputStream << ""ts":" << result.Start;
m_OutputStream << "}";
//这个末尾,每输出完一部分json进入输出流,就进行刷新,把这些数据流到文件中
//要这样做的原因是,在程序崩溃或终止,不会丢失所有提供的数据
m_OutputStream.flush();
}
//写一个文件头,是json文件的开头,是Chrome tracing需要的一个特定的格式
void WriteHeader()
{
m_OutputStream << "{"otherData": {},"traxeEvents":[";
m_OutputStream.flush();
}
//写一个简单的页脚
void WriteFooter()
{
m_OutputStream << "]}";
m_OutputStream.flush();
}
//返回一个Instrumentor类。(静态)
static Instrumentor& Get()
{
static Instrumentor* instance = new Instrumentor();
return *instance;
}
};
//计时器;需要为它构建一个对象,让它开始计时,然后在作用域结束时自动停止
class InstrumentationTimer
{
public:
InstrumentationTimer(const char* name)
: m_Name(name), m_Stopped(false)
{
m_StartTimepoint = std::chrono::high_resolution_clock::now();
}
~InstrumentationTimer()
{
if (!m_Stopped)
Stop();
}
void Stop()
{
auto endTimepoint = std::chrono::high_resolution_clock::now();
long long start = std::chrono::time_point_cast<std::chrono::microseconds>(m_StartTimepoint).time_since_epoch().count();
long long end = std::chrono::time_point_cast<std::chrono::microseconds>(endTimepoint).time_since_epoch().count();
Instrumentor::Get().WriteProfile({m_Name, start, end});
m_Stopped = true;
}
private:
const char* m_Name;
std::chrono::time_point<std::chrono::steady_clock> m_StartTimepoint;
bool m_Stopped;
};
#define RPOFLING 1
#if RPOFLING
//##__LINE__;为变量取一个唯一的名字,以防我们有很多这样的东西
#define RPOFILE_SCOPE(name) InstrumentationTimer timer##__LINE__(name)
//调用PROFILESCOPE宏,但对于name,它会接受函数的名学,我们可以用这个编译宏FUNCTION二来做
#define RPOFILE_FUNCTION() RPOFILE_SCOPE(__FUNCTION__)
#else
#define RPOFLING_SCOPE(name)
#endif
void Function1()
{
RPOFILE_FUNCTION();
for (int i = 0; i < 1000; i ++)
std::cout << "Hello Word #" << i << std::endl;
}
void Function2()
{
RPOFILE_FUNCTION();
for (int i = 0; i < 1000; i++)
std::cout << "Hello Word #" << sqrt(i) << std::endl;
}
void RunBenchmarks()
{
RPOFILE_FUNCTION();
std::cout << "Running Benchmarks\n";
Function1();
Function2();
}
void main()
{
Instrumentor::Get().BeginSession("Profile");
RunBenchmarks();
Instrumentor::Get().EndSession();
std::cin.get();
}
}
json文件内容{"otherData": {},"traxeEvents":[{"cat": "function","dur":98540,"name":"Function1","ph":"X","pid":0,"tid":0,"ts":268614872780},{"cat": "function","dur":171829,"name":"Function2","ph":"X","pid":0,"tid":0,"ts":268614971414},{"cat": "function","dur":270628,"name":"RunBenchmarks","ph":"X","pid":0,"tid":0,"ts":268614872687}]}
因为你的第 83 行写错了,你把 trace 写成了 traxe
#include <iostream>
#include <string>
#include <chrono>
#include <algorithm>
#include <fstream>
#include <cmath>
//配置文件结果
struct ProfileResult
{
std::string Name;
long long Start, End;
};
//检测会话
struct InstrumentationSession
{
std::string Name;
};
//格式化一个json文件,并将其写入一个文件
class Instrumentor
{
private:
//当前会话
InstrumentationSession* m_CurrentSession;
//输出流
std::ofstream m_OutputStream;
//配置文件计数
int m_ProfileCount;
public:
Instrumentor()
: m_CurrentSession(nullptr), m_ProfileCount(0)
{}
//创建一个有给定文件名的新文件;默认results.json
void BeginSession(const std::string& name, const std::string filepath = "results.json")
{
//打开一个文件
m_OutputStream.open(filepath);
WriteHeader();
m_CurrentSession = new InstrumentationSession{ name };
}
//写了一个简单的页脚,关闭文件等等事情
void EndSession()
{
WriteFooter();
m_OutputStream.close();
delete m_CurrentSession;
m_CurrentSession = nullptr;
m_ProfileCount = 0;
}
//写时间分析数据
void WriteProfile(const ProfileResult& result)
{
if (m_ProfileCount++ > 0)
m_OutputStream << ",";
std::string name = result.Name;
std::replace(name.begin(), name.end(), '"', ',');
m_OutputStream << "{";
m_OutputStream << ""cat": "function",";
m_OutputStream << ""dur":" << (result.End - result.Start) << ',';
m_OutputStream << ""name":"" << name << "",";
m_OutputStream << ""ph":"X",";
m_OutputStream << ""pid":0,";
m_OutputStream << ""tid":0,";
m_OutputStream << ""ts":" << result.Start;
m_OutputStream << "}";
//这个末尾,每输出完一部分json进入输出流,就进行刷新,把这些数据流到文件中
//要这样做的原因是,在程序崩溃或终止,不会丢失所有提供的数据
m_OutputStream.flush();
}
//写一个文件头,是json文件的开头,是Chrome tracing需要的一个特定的格式
void WriteHeader()
{
m_OutputStream << "{"otherData": {},"traceEvents":["; // 这一行写错了,trace 写成了 traxe
m_OutputStream.flush();
}
//写一个简单的页脚
void WriteFooter()
{
m_OutputStream << "]}";
m_OutputStream.flush();
}
//返回一个Instrumentor类。(静态)
static Instrumentor& Get()
{
static Instrumentor* instance = new Instrumentor();
return *instance;
}
};
//计时器;需要为它构建一个对象,让它开始计时,然后在作用域结束时自动停止
class InstrumentationTimer
{
public:
InstrumentationTimer(const char* name)
: m_Name(name), m_Stopped(false)
{
m_StartTimepoint = std::chrono::high_resolution_clock::now();
}
~InstrumentationTimer()
{
if (!m_Stopped)
Stop();
}
void Stop()
{
auto endTimepoint = std::chrono::high_resolution_clock::now();
long long start = std::chrono::time_point_cast<std::chrono::microseconds>(m_StartTimepoint).time_since_epoch().count();
long long end = std::chrono::time_point_cast<std::chrono::microseconds>(endTimepoint).time_since_epoch().count();
Instrumentor::Get().WriteProfile({m_Name, start, end});
m_Stopped = true;
}
private:
const char* m_Name;
std::chrono::time_point<std::chrono::steady_clock> m_StartTimepoint;
bool m_Stopped;
};
#define RPOFLING 1
#if RPOFLING
//##__LINE__;为变量取一个唯一的名字,以防我们有很多这样的东西
#define RPOFILE_SCOPE(name) InstrumentationTimer timer##__LINE__(name)
//调用PROFILESCOPE宏,但对于name,它会接受函数的名学,我们可以用这个编译宏FUNCTION二来做
#define RPOFILE_FUNCTION() RPOFILE_SCOPE(__FUNCTION__)
#else
#define RPOFLING_SCOPE(name)
#endif
void Function1()
{
RPOFILE_FUNCTION();
for (int i = 0; i < 1000; i ++)
std::cout << "Hello Word #" << i << std::endl;
}
void Function2()
{
RPOFILE_FUNCTION();
for (int i = 0; i < 1000; i++)
std::cout << "Hello Word #" << sqrt(i) << std::endl;
}
void RunBenchmarks()
{
RPOFILE_FUNCTION();
std::cout << "Running Benchmarks\n";
Function1();
Function2();
}
void main()
{
Instrumentor::Get().BeginSession("Profile");
RunBenchmarks();
Instrumentor::Get().EndSession();
std::cin.get();
}
}
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最佳答案
查看完整内容
因为你的第 83 行写错了,你把 trace 写成了 traxe
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