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.
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
91 lines
2.7 KiB
91 lines
2.7 KiB
#include <mrw/stacktrace.hpp> |
|
#include <mrw/exception.hpp> |
|
#include <exception> |
|
#include <log4cxx/logger.h> |
|
|
|
namespace mrw { |
|
|
|
/** @addtogroup StackTrace */ |
|
//@{ |
|
|
|
/** @addtogroup AutoTrace |
|
|
|
@section trclog4cxx Trace using the log4cxx Library |
|
|
|
If you link to the library @c libmrwexclog4cxx using a linker |
|
option such as: @c -lmrwexclog4cxx, then an unexpected handler |
|
is registered, that traces a fatal error using the log4cxx |
|
library. You don't need to change a single line in your code! |
|
|
|
The log4cxx library is located at: |
|
- http://logging.apache.org/log4cxx |
|
|
|
@note The configurator is not installed automatically. If you |
|
want to trace e.g. on the console, you have to call @c |
|
log4cxx::BasicConfigurator::configure(); as first statement in |
|
your @c main(). |
|
*/ |
|
//@{ |
|
|
|
/// The log4cxx logger where the trace is written to. |
|
static log4cxx::LoggerPtr logger = log4cxx::Logger::getLogger(_T("libmrw")); |
|
|
|
/** @brief unexpected handler, that traces using log4cxx |
|
|
|
The unexpected handler is installed automatically when you link |
|
to @c -lmrwexclog4cxx. The implementation of this unexpected |
|
handler is as follows: |
|
|
|
@code |
|
void unexpected_log4cxx() { |
|
logger->fatal("Unexpected Exception", __FILE__, __LINE__); |
|
try { |
|
throw; |
|
} catch (const mrw::exception& x) { |
|
StackTrace::createSymtable(); |
|
logger->fatal(std::string("Reason:\n")+x.what() |
|
+"\nStack:+\n"+x.stacktrace()); |
|
} catch (const std::exception& x) { |
|
logger->fatal(std::string("Reason:\n")+x.what() |
|
+"\nStack: **** not available ****"); |
|
} catch (...) { |
|
logger->fatal(std::string("Reason: **** not available ****\n") |
|
+"\nStack: **** not available ****"); |
|
} |
|
throw std::bad_exception(); |
|
} |
|
@endcode |
|
|
|
*/ |
|
void unexpected_log4cxx() { |
|
logger->fatal("Unexpected Exception", __FILE__, __LINE__); |
|
try { |
|
throw; |
|
} catch (const mrw::exception& x) { |
|
StackTrace::createSymtable(); |
|
logger->fatal(std::string("Reason:\n")+x.what() |
|
+"\nStack:+\n"+x.stacktrace()); |
|
} catch (const std::exception& x) { |
|
logger->fatal(std::string("Reason:\n")+x.what() |
|
+"\nStack: **** not available ****"); |
|
} catch (...) { |
|
logger->fatal(std::string("Reason: **** not available ****\n") |
|
+"\nStack: **** not available ****"); |
|
} |
|
throw std::bad_exception(); |
|
} |
|
|
|
//@} |
|
//@} |
|
|
|
class AutoStackTrace { |
|
public: |
|
AutoStackTrace() { |
|
std::set_unexpected(&mrw::unexpected_log4cxx); |
|
} |
|
}; |
|
|
|
// initialize stack traces (load symbols) |
|
static AutoStackTrace _autoStackTrace; |
|
|
|
}
|
|
|