debug.h

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// -*- Mode: C++; tab-width: 2; -*-
// vi: set ts=2:
//

#ifndef BALL_COMMON_DEBUG_H
#define BALL_COMMON_DEBUG_H

#ifndef BALL_CONFIG_CONFIG_H
# include <BALL/CONFIG/config.h>
#endif

#ifdef BALL_NO_INLINE_FUNCTIONS
# define BALL_INLINE
#else
# define BALL_INLINE inline
#endif

#include <string>
#include <cstring>

#ifdef BALL_DEBUG

# define BALL_PRECONDITION_EXCEPTION(condition, message)\
  if (!(condition))\
  {\
    Exception::Precondition e(__FILE__, __LINE__, #condition);\
    if (strcmp(message, "") != 0)\
    {\
      ::std::string tmp(e.getMessage());\
      tmp += ::std::string(message);\
      e.setMessage(tmp);\
    }\
    throw e;\
  }\

# define BALL_POSTCONDITION_EXCEPTION(condition, message)\
  if (!(condition))\
  {\
    Exception::Postcondition e(__FILE__, __LINE__, #condition);\
    if (strcmp(message, "") != 0)\
    {\
      std::string tmp(e.getMessage());\
      tmp += std::string(message);\
      e.setMessage(tmp);\
    }\
    throw e;\
  }\

# if defined(BALL_COMPILER_GXX) || defined(BALL_COMPILER_LLVM)
# include <execinfo.h>
# include <cxxabi.h>

# define BALL_PRINT_BACKTRACE()\
  {\
    void *bt_addresses[100];\
    char **bt;\
    \
    int bt_size = backtrace(bt_addresses, 100);\
    bt = backtrace_symbols(bt_addresses, bt_size);\
    \
    char* demangled=0;\
    size_t num_demangled;\
    int status;\
    std::vector<String> split;\
    \
    for(int i = 0; i < bt_size; i++)\
    {\
      String mangled(bt[i]);\
      \
      Log.warn() << i << ": " << bt[i] << " ";\
      mangled = mangled.getField(1, "()");\
      mangled = mangled.getField(0, "+");\
      \
      char* out = abi::__cxa_demangle(mangled.c_str(), demangled, &num_demangled, &status);\
      if (status == 0) Log.warn() << "demangled: " << String(out);\
      if (num_demangled > 0) free(demangled);\
      demangled = 0;\
      Log.warn() << std::endl;\
    }\
    free(bt);\
  }\

# else
# define BALL_PRINT_BACKTRACE()
# endif

#else

# define BALL_PRECONDITION_EXCEPTION(condition, message)
# define BALL_POSTCONDITION_EXCEPTION(condition, message)
# define BALL_PRINT_BACKTRACE()

#endif // BALL_DEBUG

#endif // BALL_COMMON_DEBUG_H