/***************************************************************************
 * 
 * Copyright (c) 2009 Baidu.com, Inc. All Rights Reserved
 * $Id: bsl_test_exception_prepare.h_,v 1.2 2009/06/15 06:29:05 chenxm Exp $ 
 * 
 **************************************************************************/
 
 
 
/**
 * @file bsl_test_exception_prepare.h
 * @author chenxm(chenxiaoming@baidu.com)
 * @date 2009/04/25 15:58:28
 * @version $Revision: 1.2 $ 
 * @brief 
 *  
 **/
#ifndef  __BSL_TEST_EXCEPTION_PREPARE_H_
#define  __BSL_TEST_EXCEPTION_PREPARE_H_

/**
* @brief 把异常打印到日志的宏函数
* fmrt必须是C风格格式化字符串
* args必须是C风格可变参数
*  
*/
#define BSL_LOG_EXCEPTION(__bsl_bsl_exception_instance__, fmt, args...)                                         \
        __BSL_LOG_WARNING__(                                                                                    \
                "%s thrown from %s:%d:%s is caught! "fmt"<CR>  message:%s<CR>  stack:<CR>%s",                   \
                (__bsl_bsl_exception_instance__).name(),                                                        \
                (__bsl_bsl_exception_instance__).file(),                                                        \
                (__bsl_bsl_exception_instance__).line(),                                                        \
                (__bsl_bsl_exception_instance__).function(),                                                    \
                (__bsl_bsl_exception_instance__).what(),                                                        \
                (__bsl_bsl_exception_instance__).stack()                                                        \
        )                                                                                                       \
/**
* @brief 将异常转化成错误码并打印日志的宏函数
*
* 该宏旨在帮助程序员把C程序库平滑地升级为C++程序库，C++程序之间避免使用该宏。
* 若代码(code)不抛异常，errno会被置为0；
* 若代码(code)抛出异常，errno会被置为-1，并且打印详细的错误日志。
* 强烈建议使用此宏后，检查errno
* 强烈建议代码(code)只是一句函数调用。
*/
#define BSL_E2NO(errno, code)                                                                                   \
    do{                                                                                                         \
        try{                                                                                                    \
            code;                                                                                               \
            (errno) = 0;                                                                                        \
        }catch(bsl::Exception& __bsl_bsl_exception_instance__){ /*long name to prevent naming confliction*/     \
            (errno) = -1;                                                                                       \
            BSL_LOG_EXCEPTION(__bsl_bsl_exception_instance__, #errno" is set to -1!");                          \
        }catch(std::exception& __bsl_std_exception_instance__){ /*long name to prevent naming confliction*/     \
            (errno) = -1;                                                                                       \
            __BSL_LOG_FATAL__( "std::exception[%s] is caught! "#errno" is set to -1! Definitely a BUG!",        \
                    __bsl_std_exception_instance__.what() );                                                    \
        }catch(...){                                                                                            \
            (errno) = -1;                                                                                       \
            __BSL_LOG_FATAL__("unknown exception is caught! "#errno" is set to -1! Definitely a FATAL BUG!");   \
        }                                                                                                       \
    }while(0)

#define UB_LOG_WARNING( fmt, arg... )                   \
    do{                                                 \
        fprintf( stderr, "UB_LOG_WARNING:"fmt"\n", ##arg ); \
    }while(0)

#define UB_LOG_FATAL( fmt, arg... )                     \
    do{                                                 \
        fprintf( stderr, "UB_LOG_FATAL:"fmt"\n", ##arg );   \
    }while(0)

void call_nothrow(){
    //do nothing
}
template<class Exception>
void call_throw(){
    throw Exception()<<BSL_EARG<<"this is message";
}
void call_throw_int(int i){
    throw i;
}

#include<typeinfo>
#include<iostream>
#define see(x) do{  \
    std::cerr<<__FILE__<<":"<<__LINE__<<": " <<(#x)<<" = "<<(x)<<" ("<<typeid(x).name()<<")"<<std::endl;\
}while(0)

const char * throw_func_what = "acumon7336-123abctrue";
bsl::exception_level_t throw_func_level = bsl::EXCEPTION_LEVEL_FATAL;

template<class ExceptionT>
void throw_func_push( int depth ){
    if ( depth <= 0 ){
        throw ExceptionT().push(1000000, 'c').push(BSL_EARG).push(bsl::EXCEPTION_LEVEL_FATAL);
    }
    throw_func_push<ExceptionT>( depth - 1 );
}

template<class ExceptionT>
void throw_func_shift( int depth ){
    if ( depth <= 0 ){
        throw ExceptionT()<<"acumon"<<7336<<-123<<"abc"<<true<<BSL_EARG<<bsl::EXCEPTION_LEVEL_FATAL;
    }
    throw_func_shift<ExceptionT>( depth - 1 );
}

#endif  //__BSL_TEST_EXCEPTION_PREPARE_H_

/* vim: set ts=4 sw=4 sts=4 tw=100 */