C++ Library containing a lot of needful things: Stack Trace, Command Line Parser, Resource Handling, Configuration Files, Unix Command Execution, Directories, Regular Expressions, Tokenizer, Function Trace, Standard Extensions.
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206 lines
7.0 KiB
206 lines
7.0 KiB
/** @file |
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$Id$ |
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$Date$ |
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$Author$ |
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@copy © Marc Wäckerlin |
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@license LGPL, see file <a href="license.html">COPYING</a> |
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$Log$ |
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Revision 1.7 2005/01/28 12:13:11 marc |
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interference between group name StackTrace and class name StackTrace |
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Revision 1.6 2005/01/28 12:13:11 marc |
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interference between group name StackTrace and class name StackTrace |
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Revision 1.5 2005/01/28 07:42:23 marc |
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added terminate handler (uncaught handler) |
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Revision 1.4 2004/10/13 10:41:28 marc |
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no newline at the end of stack trace |
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Revision 1.3 2004/08/28 16:21:25 marc |
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mrw-c++-0.92 (mrw) |
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- new file: version.cpp |
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- new file header for all sources |
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- work around warning in mrw::auto<T> |
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- possibility to compile without log4cxx |
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- work around bugs in demangle.h and libiberty.h |
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- corrections in documentation |
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- added simple tracing mechanism |
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- more warnings |
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- small corrections in Auto<>::Free and a new test for it |
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- possibility to compile without stack trace |
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*/ |
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#include <mrw/stacktrace.hpp> |
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#include <mrw/exception.hpp> |
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#include <exception> |
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#include <iostream> |
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namespace mrw { |
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/** @addtogroup grpStackTrace */ |
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//@{ |
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/** @defgroup AutoTrace Automated Unexpected and Terminate Handler |
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with Stack Trace |
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@brief Don't care about the unexpected handler, don't care about |
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a try-catch in the main, let the library do all the repetitive |
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work for you. |
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For all your programs it is recommended to implement an |
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identical unexpected handler, that rethrows, catches the @c |
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mrw::exception, @c std::exception and all unknown exceptions, |
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traces them and finally quits with a throw of a @c |
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std::bad_exception. You are also required to write a @c try @c |
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catch block around all in your @c main, so that you don't miss |
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any exception. The only thing that may be different from project |
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to project is, how tracing is done. The MRW C++ Class Library |
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provides you with additional libraries you can link to. By |
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linking to the library, you get an unexpected handler and an |
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exception trace in the @c main for free: You don't need to add a |
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single line of code, just link to one more library! The |
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libraries differ in how tracing is done. |
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The Implementation is done with a static instance of a class that |
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sets the unexpected handler in the constructor. |
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@section trcstderr Trace using std::cerr |
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If you link to the library @c libmrwexcstderr using a linker |
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option such as: @c -lmrwexcstderr, then an unexpected and a |
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terminate handler are registered, that trace to the standard |
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error stream @c std::cerr. You don't need to change a single |
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line in your code! |
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*/ |
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//@{ |
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/** @brief unexpected handler, that traces to @c std::cerr |
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The unexpected handler is installed automatically when you link |
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to @c -lmrwexcstderr. The implementation of this unexpected |
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handler is as follows: |
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@code |
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void unexpected_stderr() { |
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std::cerr<<"UNEXPECTED EXCEPTION: ----------------------------"<<std::endl; |
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try { |
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StackTrace::createSymtable(); |
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throw; |
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} catch (const mrw::exception& x) { |
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std::cerr<<"---------- Reason:"<<std::endl |
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<<x.what()<<std::endl |
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<<"---------- Stack:"<<std::endl |
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<<x.stacktrace(); |
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} catch (const std::exception& x) { |
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std::string st((std::string)StackTrace()); |
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std::cerr<<"---------- Reason:"<<std::endl |
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<<x.what()<<std::endl |
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<<"---------- Stack: "<<std::endl<<st; |
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} catch (...) { |
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std::string st((std::string)StackTrace()); |
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std::cerr<<"---------- Reason: **** not available ****"<<std::endl |
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<<"---------- Stack:"<<std::endl<<st; |
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} |
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std::cerr<<"-------------------------------------------------"<<std::endl; |
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throw std::bad_exception(); |
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} |
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@endcode |
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*/ |
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void unexpected_stderr() { |
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std::cerr<<"UNEXPECTED EXCEPTION: ----------------------------"<<std::endl; |
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try { |
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StackTrace::createSymtable(); |
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throw; |
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} catch (const mrw::exception& x) { |
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std::cerr<<"---------- Reason:"<<std::endl |
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<<x.what()<<std::endl |
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<<"---------- Stack:"<<std::endl |
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<<x.stacktrace(); |
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} catch (const std::exception& x) { |
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std::string st((std::string)StackTrace()); |
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std::cerr<<"---------- Reason:"<<std::endl |
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<<x.what()<<std::endl |
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<<"---------- Stack:"<<std::endl<<st; |
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} catch (...) { |
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std::string st((std::string)StackTrace()); |
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std::cerr<<"---------- Reason: **** not available ****"<<std::endl |
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<<"---------- Stack:"<<std::endl<<st; |
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} |
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std::cerr<<"-------------------------------------------------"<<std::endl; |
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throw std::bad_exception(); |
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} |
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/** @brief terminate handler, that traces to @c std::cerr |
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The terminate handler is installed automatically when you link |
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to @c -lmrwexcstderr. The implementation of this terminate |
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handler is as follows: |
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@code |
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void terminate_stderr() { |
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std::cerr<<"UNCAUGHT EXCEPTION: ----------------------------"<<std::endl; |
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try { |
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throw; |
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} catch (const mrw::exception& x) { |
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StackTrace::createSymtable(); |
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std::cerr<<"---------- Reason:"<<std::endl |
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<<x.what()<<std::endl |
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<<"---------- Stack:"<<std::endl |
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<<x.stacktrace(); |
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} catch (const std::exception& x) { |
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std::cerr<<"---------- Reason:"<<std::endl |
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<<x.what()<<std::endl |
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<<"---------- Stack: **** not available ****"<<std::endl; |
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} catch (...) { |
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std::cerr<<"---------- Reason: **** not available ****"<<std::endl |
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<<"---------- Stack: **** not available ****"<<std::endl; |
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} |
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std::cerr<<"-------------------------------------------------"<<std::endl; |
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exit(1); |
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} |
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@endcode |
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*/ |
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void terminate_stderr() { |
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std::cerr<<"UNCAUGHT EXCEPTION: ----------------------------"<<std::endl; |
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try { |
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throw; |
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} catch (const mrw::exception& x) { |
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StackTrace::createSymtable(); |
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std::cerr<<"---------- Reason:"<<std::endl |
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<<x.what()<<std::endl |
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<<"---------- Stack:"<<std::endl |
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<<x.stacktrace(); |
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} catch (const std::exception& x) { |
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std::cerr<<"---------- Reason:"<<std::endl |
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<<x.what()<<std::endl |
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<<"---------- Stack: **** not available ****"<<std::endl; |
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} catch (...) { |
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std::cerr<<"---------- Reason: **** not available ****"<<std::endl |
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<<"---------- Stack: **** not available ****"<<std::endl; |
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} |
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std::cerr<<"-------------------------------------------------"<<std::endl; |
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exit(1); |
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} |
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//@} |
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//@} |
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class AutoStackTrace { |
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public: |
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AutoStackTrace() { |
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std::set_unexpected(&mrw::unexpected_stderr); |
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std::set_terminate(&mrw::terminate_stderr); |
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} |
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}; |
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// initialize stack traces (load symbols) |
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static AutoStackTrace _autoStackTrace; |
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}
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