#include <cpn/common.h>
#include <cpn/utils/Exception.h>

Include dependency graph for ThrowingAssert.h:

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Classes
class	AssertException
	The exception thrown by the ASSERT macro. More...

Macros
#define	ASSERT(exp,...) (exp ? true : __ASSERT(#exp, __FILE__, __LINE__, __PRETTY_FUNCTION__, false, ## __VA_ARGS__))

#define	ASSERT_ABORT(exp,...) (exp ? true : __ASSERT(#exp, __FILE__, __LINE__, __PRETTY_FUNCTION__, true, ## __VA_ARGS__))

#define	ENSURE(exp,...) (exp ? true : __ASSERT(#exp, __FILE__, __LINE__, __PRETTY_FUNCTION__, false, ## __VA_ARGS__))

#define	ENSURE_ABORT(exp,...) (exp ? true : __ASSERT(#exp, __FILE__, __LINE__, __PRETTY_FUNCTION__, true, ## __VA_ARGS__))

Functions
bool	__ASSERT (const char exp, const char file, int line, const char *func, bool die) __attribute__((noreturn))

bool	__ASSERT (const char exp, const char file, int line, const char *func, bool die, const std::string &msg) __attribute__((noreturn))

bool	__ASSERT (const char exp, const char file, int line, const char func, bool die, const char fmt,...) __attribute__((noreturn))

Detailed Description

An implementation of an assert like micro that throws an exception. This is usefull when using a unit test as the test will then fail and the application will continue.

Note that this file uses some GCC only features like exp ?: see http://gcc.gnu.org/onlinedocs/gcc-4.4.1/gcc/Conditionals.html

Use ASSERT when you want the test to be compiled out when NDEBUG is defined and use ENSURE when you want the expression to remain when NDEBUG is defined.

Also these macros evaluate there arguments only ONCE.

Author: John Bridgman

Definition in file ThrowingAssert.h.

Macro Definition Documentation

#define ASSERT	(	exp,
		...
	)	(exp ? true : __ASSERT(#exp, __FILE__, __LINE__, __PRETTY_FUNCTION__, false, ## __VA_ARGS__))

Definition at line 62 of file ThrowingAssert.h.

#define ASSERT_ABORT	(	exp,
		...
	)	(exp ? true : __ASSERT(#exp, __FILE__, __LINE__, __PRETTY_FUNCTION__, true, ## __VA_ARGS__))

Definition at line 63 of file ThrowingAssert.h.

Referenced by CPN::RemoteQueue::~RemoteQueue().

#define ENSURE	(	exp,
		...
	)	(exp ? true : __ASSERT(#exp, __FILE__, __LINE__, __PRETTY_FUNCTION__, false, ## __VA_ARGS__))

Definition at line 64 of file ThrowingAssert.h.

Referenced by Sync::ReentrantCondition::ReentrantCondition(), Sync::ReentrantLock::ReentrantLock(), and Sync::StatusHandler< KernelStatus_t >::StatusHandler().

#define ENSURE_ABORT	(	exp,
		...
	)	(exp ? true : __ASSERT(#exp, __FILE__, __LINE__, __PRETTY_FUNCTION__, true, ## __VA_ARGS__))

Definition at line 65 of file ThrowingAssert.h.

Referenced by Sync::ReentrantLock::Lock(), Sync::Internal::ScopeMutex::ScopeMutex(), Sync::ReentrantLock::Unlock(), Sync::ReentrantCondition::~ReentrantCondition(), Sync::ReentrantLock::~ReentrantLock(), Sync::Internal::ScopeMutex::~ScopeMutex(), and Sync::StatusHandler< KernelStatus_t >::~StatusHandler().

Function Documentation

bool __ASSERT	(	const char *	exp,
		const char *	file,
		int	line,
		const char *	func,
		bool	die
	)

Definition at line 59 of file ThrowingAssert.cc.

References CreateMessage(), and GetStack().

                                                                                        {
     if (die) {
         fprintf(stderr, "%s\nBacktrace:\n%s\n",
                 CreateMessage(exp, file, line, func, "").c_str(), GetStack(2).c_str());
         abort();
     } else {
         throw AssertException(CreateMessage(exp, file, line, func, ""));
     }
 }

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bool __ASSERT	(	const char *	exp,
		const char *	file,
		int	line,
		const char *	func,
		bool	die,
		const std::string &	msg
	)

Definition at line 69 of file ThrowingAssert.cc.

References CreateMessage(), and GetStack().

                                                                                                              {
     if (die) {
         fprintf(stderr, "%s\nBacktrace:\n%s\n",
                 CreateMessage(exp, file, line, func, "").c_str(), GetStack(2).c_str());
         abort();
     } else {
         throw AssertException(CreateMessage(exp, file, line, func, msg.c_str()));
     }
 }

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bool __ASSERT	(	const char *	exp,
		const char *	file,
		int	line,
		const char *	func,
		bool	die,
		const char *	fmt,
			...
	)

Definition at line 79 of file ThrowingAssert.cc.

References CreateMessage(), and GetStack().

                                                                                                              {
     std::vector<char> buff(128, '\0');
     // Note this is based on the exmaple in the man page for vsnprintf.
     while (1) {
         /* Try to print in the allocated space. */
         va_list ap;
         va_start(ap, fmt);
         int n = vsnprintf(&buff[0], buff.size(), fmt, ap);
         va_end(ap);
         /* If that worked, return the string. */
         if (n > -1 && unsigned(n) < buff.size()) {
             break;
         }
         /* Else try again with more space. */
         if (n > -1) { /* glibc 2.1 */ /* precisely what is needed */
             buff.resize(n+1, '\0');
         }
         else { /* glibc 2.0 */ /* twice the old size */
             buff.resize(buff.size()*2, '\0');
         }
     }
     std::string msg = CreateMessage(exp, file, line, func, &buff[0]);
     if (die) {
         fprintf(stderr, "%s\nBacktrace:\n%s\n", msg.c_str(), GetStack(2).c_str());
         abort();
     } else {
         throw AssertException(msg);
     }
 }

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Classes

Macros

Functions

Detailed Description

Macro Definition Documentation

Function Documentation