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/*-
* Copyright (c) 2006 Verdens Gang AS
* Copyright (c) 2006-2011 Varnish Software AS
* All rights reserved.
*
* Author: Poul-Henning Kamp <phk@phk.freebsd.dk>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* assert(), AN() and AZ() are static checks that should not happen.
* In general asserts should be cheap, such as checking return
* values and similar.
* diagnostic() are asserts which are so expensive that we may want
* to compile them out for performance at a later date.
* xxxassert(), XXXAN() and XXXAZ() marks conditions we ought to
* handle gracefully, such as malloc failure.
*/
#ifndef VAS_H_INCLUDED
#define VAS_H_INCLUDED
enum vas_e {
VAS_WRONG,
VAS_MISSING,
VAS_ASSERT,
VAS_INCOMPLETE,
VAS_VCL,
};
typedef void vas_f(const char *, const char *, int, const char *, int,
enum vas_e);
extern vas_f *VAS_Fail __attribute__((__noreturn__));
#ifdef WITHOUT_ASSERTS
#define assert(e) ((void)(e))
#else /* WITH_ASSERTS */
#define assert(e) \
do { \
if (!(e)) { \
VAS_Fail(__func__, __FILE__, __LINE__, \
#e, errno, VAS_ASSERT); \
} \
} while (0)
#endif
#define xxxassert(e) \
do { \
if (!(e)) { \
VAS_Fail(__func__, __FILE__, __LINE__, \
#e, errno, VAS_MISSING); \
} \
} while (0)
/* Assert zero return value */
#define AZ(foo) do { assert((foo) == 0); } while (0)
#define AN(foo) do { assert((foo) != 0); } while (0)
#define XXXAZ(foo) do { xxxassert((foo) == 0); } while (0)
#define XXXAN(foo) do { xxxassert((foo) != 0); } while (0)
#define diagnostic(foo) assert(foo)
#define WRONG(expl) \
do { \
VAS_Fail(__func__, __FILE__, __LINE__, expl, errno, VAS_WRONG); \
} while (0)
#define INCOMPL() \
do { \
VAS_Fail(__func__, __FILE__, __LINE__, \
"", errno, VAS_INCOMPLETE); \
} while (0)
#endif
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