macros.hpp File Reference

#include <iostream>
#include <sstream>
#include <string>
#include "rmw/error_handling.h"
#include "rmw/impl/config.h"
#include "rmw/impl/cpp/demangle.hpp"

Go to the source code of this file.

Macros
#define	RMW_TRY_PLACEMENT_NEW(Destination, BufferForNew, FailureAction, Type, ...)
#define	RMW_TRY_DESTRUCTOR(Statement, Type, FailureAction)
#define	RMW_TRY_DESTRUCTOR_FROM_WITHIN_FAILURE(Statement, Type)
#define	RMW_CHECK_TYPE_IDENTIFIERS_MATCH(ElementName, ElementTypeID, ExpectedTypeID, OnFailure)

Macro Definition Documentation

RMW_TRY_PLACEMENT_NEW

#define RMW_TRY_PLACEMENT_NEW	(		Destination,
			BufferForNew,
			FailureAction,
			Type,
			...
	)

Value:

try { \
  Destination = new(BufferForNew) Type(__VA_ARGS__); \
} catch(const std::exception & exception) { \
  RMW_SET_ERROR_MSG(( \
    std::string("caught C++ exception ") + rmw::impl::cpp::demangle(exception) + \
    " constructing " #Type ": " + exception.what() \
  ).c_str()); \
  FailureAction; \
} catch(...) { \
  RMW_SET_ERROR_MSG("caught unknown C++ exception constructing " #Type); \
  FailureAction; \
}

RMW_TRY_DESTRUCTOR

#define RMW_TRY_DESTRUCTOR	(		Statement,
			Type,
			FailureAction
	)

Value:

try { \
  Statement; \
} catch(const std::exception & exception) { \
  RMW_SET_ERROR_MSG(( \
    std::string("caught C++ exception in destructor of " #Type ": ") + \
    rmw::impl::cpp::demangle(exception) + ": " + exception.what() \
  ).c_str()); \
  FailureAction; \
} catch(...) { \
  RMW_SET_ERROR_MSG("caught unknown C++ exception in destructor of " #Type); \
  FailureAction; \
}

RMW_TRY_DESTRUCTOR_FROM_WITHIN_FAILURE

#define RMW_TRY_DESTRUCTOR_FROM_WITHIN_FAILURE	(		Statement,
			Type
	)

Value:

try { \
  Statement; \
} catch(const std::exception & exception) { \
  std::stringstream ss; \
  ss << "caught C++ exception in destructor of " #Type " while handling a failure: " \
     << rmw::impl::cpp::demangle(exception) << ": " << exception.what() \
     << ", at: " << __FILE__ << ":" << __LINE__ << '\n'; \
  (std::cerr << ss.str()).flush(); \
} catch(...) { \
  std::stringstream ss; \
  ss << "caught unknown C++ exception in destructor of " #Type \
     << " while handling a failure at: " << __FILE__ << ":" << __LINE__ << '\n'; \
  (std::cerr << ss.str()).flush(); \
}

RMW_CHECK_TYPE_IDENTIFIERS_MATCH

#define RMW_CHECK_TYPE_IDENTIFIERS_MATCH	(		ElementName,
			ElementTypeID,
			ExpectedTypeID,
			OnFailure
	)

Value:

{ \
  if (ElementTypeID != ExpectedTypeID) { \
    size_t __bytes_that_would_have_been_written = snprintf( \
      NULL, 0, \
      #ElementName " implementation '%s'(%p) does not match rmw implementation '%s'(%p)", \
      ElementTypeID, ElementTypeID, ExpectedTypeID, ExpectedTypeID); \
    char * __msg = \
      reinterpret_cast<char *>(rmw_allocate(__bytes_that_would_have_been_written + 1)); \
    snprintf( \
      __msg, __bytes_that_would_have_been_written + 1, \
      #ElementName " implementation '%s'(%p) does not match rmw implementation '%s'(%p)", \
      ElementTypeID, ElementTypeID, ExpectedTypeID, ExpectedTypeID); \
    RMW_SET_ERROR_MSG(__msg); \
    rmw_free(__msg); \
    OnFailure; \
  } \
}