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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 *, enum vas_e); extern vas_f *VAS_Fail_Func v_noreturn_; extern vas_f VAS_Fail v_noreturn_; #ifdef WITHOUT_ASSERTS #define assert(e) ((void)(e)) #else /* WITH_ASSERTS */ #define assert(e) \ do { \ if (!(e)) { \ VAS_Fail(__func__, __FILE__, __LINE__, \ #e, VAS_ASSERT); \ } \ } while (0) #endif #define xxxassert(e) \ do { \ if (!(e)) { \ VAS_Fail(__func__, __FILE__, __LINE__, \ #e, 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, VAS_WRONG); \ } while (0) #define INCOMPL() \ do { \ VAS_Fail(__func__, __FILE__, __LINE__, \ "", VAS_INCOMPLETE); \ } while (0) #endif