+++ /dev/null
-/**
- * \file
- * <!--
- * Copyright 2006 Develer S.r.l. (http://www.develer.com/)
- * Copyright 1999 Bernardo Innocenti <bernie@develer.com>
- * This file is part of DevLib - See README.devlib for information.
- * -->
- *
- * \brief C++-like structured exception handling for C programs
- *
- * \version $Id$
- * \author Bernardo Innocenti <bernie@develer.com>
- */
-#ifndef MWARE_EXCEPT_H
-#define MWARE_EXCEPT_H
-
-#include <cfg/debug.h>
-
-#include <setjmp.h>
-
-#define EXCEPT_CONTEXTS 8
-
-/**
- * A stack of jump buffers used to record try sites
- * so they can be reached from throw sites.
- *
- * The stack contains return points for each nested
- * context. jmp_buf's are pushed into the stack at
- * try points and popped out when the try block ends
- * normally or when an exception is thrown.
- */
-extern jmp_buf except_stack[EXCEPT_CONTEXTS];
-extern int except_top;
-
-#ifdef _DEBUG
-# define PUSH_ABORT ASSERT(abort_top < ABORT_CONTEXTS), setjmp(abort_stack[abort_top++]))
-# define POP_ABORT (ASSERT(abort_top > 0), --abort_top)
-# define DO_ABORT (ASSERT(abort_top > 0), longjmp(abort_stack[--abort_top], true))
-#else
-# define PUSH_ABORT (setjmp(abort_stack[abort_top++]))
-# define POP_ABORT (--abort_top)
-# define DO_ABORT (longjmp(abort_stack[--abort_top], true))
-#endif
-
-/**
- * Jump buffer to use when throwing an exception or aborting an operation
- *
- * User code can throw exceptions like this:
- *
- * \code
- * void a_function_throwing_exceptions(void)
- * {
- * if (some_error_condition)
- * THROW;
- * }
- * \endcode
- *
- * Catching exceptions (brackets are optional):
- *
- * \code
- * EXCEPT_DEFINE;
- *
- * void a_function_catching_an_exception(void)
- * {
- * TRY
- * {
- * printf("Entered try block\n");
- * a_function_throwing_exceptions();
- * printf("Survived execution of critical code\n");
- * }
- * CATCH
- * {
- * printf("Exception caught!\n");
- * }
- * CATCH_END
- * }
- * \endcode
- *
- * Simple syntax when you don't need to do anything when catching an excaption:
- *
- * \code
- * TRY
- * printf("Entered try block\n");
- * a_function_throwing_exceptions();
- * printf("Survived execution of critical code\n");
- * TRY_END
- * \endcode
- *
- * You also need to declare the exception stack once in
- * your global declarations:
- * \code
- * EXCEPT_DEFINE;
- * \endcode
- */
-#define TRY if (PUSH_ABORT) { {
-#define TRY_END } POP_ABORT; }
-#define CATCH } POP_ABORT; } else {
-#define CATCH_END }
-#define THROW DO_ABORT
-
-
-#define EXCEPT_DEFINE \
- jmp_buf abort_stack[ABORT_CONTEXTS]; \
- int abort_top;
-
-#endif /* MWARE_EXCEPT_H */