boost 异常监控库 (RobinKin 整理）

最新推荐文章于 2019-02-05 21:15:56 发布

原创最新推荐文章于 2019-02-05 21:15:56 发布 · 1.3k 阅读

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文章标签：

#exception #struct #iostream #function

此博客给出一段C++代码，包含结构体定义、异常处理等内容。定义了my_exception1和my_exception2结构体，dangerous_call_monitor类用于监控操作并抛出异常，还实现了异常翻译函数，最后在main函数中进行异常处理，同时给出编译方式。

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//file name : mon.cpp
#include <boost/test/execution_monitor.hpp>

#include <iostream>

struct my_exception1
{
explicit my_exception1( int res_code ) : m_res_code( res_code ) {}

int m_res_code;
};

struct my_exception2
{
explicit my_exception2( int res_code ) : m_res_code( res_code ) {}

int m_res_code;
};

struct dangerous_call_monitor : boost::execution_monitor
{
explicit dangerous_call_monitor( int argc ) : m_argc( argc ) {}

    virtual int function()
    {
        // here we perform some operation under monitoring that could throw my_exception
        if( m_argc < 2 )
            throw my_exception1( 23 );
        if( m_argc > 3 )
            throw my_exception2( 45 );
        else if( m_argc > 2 )
            throw "too many args";

return 1;
}

int m_argc;
};

void translate_my_exception1( my_exception1 const& ex )
{
std::cout << "Caught my_exception1(" << ex.m_res_code << ")"<<
std::endl;
}

void translate_my_exception2( my_exception2 const& ex )
{
std::cout << "Caught my_exception2(" << ex.m_res_code << ")"<<
std::endl;
}

int cpp_main( int argc , char *[] )
{
}

int
main( int argc , char *[] )
{
dangerous_call_monitor the_monitor( argc );

the_monitor.register_exception_translator<my_exception1>(
&translate_my_exception1 );
the_monitor.register_exception_translator<my_exception2>(
&translate_my_exception2 );

    try {
        the_monitor.execute();
    }
    catch ( boost::execution_exception const& ex ) {
        std::cout << "Caught exception: " << ex.what() << std::endl;
    }

return 0;
}

// EOF

编译方式： g++ -o mon -lboost-prt-exec-monitor-gcc mon.cpp