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Diffstat (limited to 'libstdc++-v3/testsuite/testsuite_hooks.h.in')
| -rw-r--r-- | libstdc++-v3/testsuite/testsuite_hooks.h.in | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/testsuite_hooks.h.in b/libstdc++-v3/testsuite/testsuite_hooks.h.in new file mode 100644 index 0000000..bee264f --- /dev/null +++ b/libstdc++-v3/testsuite/testsuite_hooks.h.in @@ -0,0 +1,133 @@ +// Utility subroutines for the C++ library testsuite. +// +// Copyright (C) 2000, 2001 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 2, or (at your option) +// any later version. +// +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING. If not, write to the Free +// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, +// USA. +// +// As a special exception, you may use this file as part of a free software +// library without restriction. Specifically, if other files instantiate +// templates or use macros or inline functions from this file, or you compile +// this file and link it with other files to produce an executable, this +// file does not by itself cause the resulting executable to be covered by +// the GNU General Public License. This exception does not however +// invalidate any other reasons why the executable file might be covered by +// the GNU General Public License. + +// This file provides the following: +// +// 1) VERIFY(), via DEBUG_ASSERT, from Brent Verner <brent@rcfile.org>. +// This file is included in the various testsuite programs to provide +// #define(able) assert() behavior for debugging/testing. It may be +// a suitable location for other furry woodland creatures as well. +// +// 2) __set_testsuite_memlimit() +// __set_testsuite_memlimit() uses setrlimit() to restrict dynamic memory +// allocation. We provide a default memory limit if none is passed by the +// calling application. The argument to __set_testsuite_memlimit() is the +// limit in megabytes (a floating-point number). If NO_MEM_LIMITS is +// #defined before including this header, then no limiting is attempted. + +#ifndef _GLIBCPP_TESTSUITE_HOOKS_H +#define _GLIBCPP_TESTSUITE_HOOKS_H + + +/******* + * VERIFY(), via DEBUG_ASSERT, from Brent Verner <brent@rcfile.org>. +*/ +#ifdef DEBUG_ASSERT +# include <cassert> +# define VERIFY(fn) assert(fn) + +#else + +# define VERIFY(fn) test &= (fn) +// should we define this here to make sure no 'unexpected' failures +// happen, or do we require that it be defined in any scope where +// the VERIFY macro is used??? +// +// static bool test = true; +#endif + + +/******* + * __set_testsuite_memlimit() +*/ +// The RLIMIT_* macros used will be as many of the following as we can find, +// and they will be used in this order, for whatever difference it makes: +// RLIMIT_DATA +// RLIMIT_RSS +// RLIMIT_VMEM +// RLIMIT_AS + +#define NO_MEM_LIMITS + +// The following lines will be changed by configure... +#undef HAVE_SYS_RESOURCE_H +#undef HAVE_UNISTD_H +#undef HAVE_MEMLIMIT_DATA +#undef HAVE_MEMLIMIT_RSS +#undef HAVE_MEMLIMIT_VMEM +#undef HAVE_MEMLIMIT_AS + +// ...and the results used here. +#if defined(HAVE_SYS_RESOURCE_H) && defined(HAVE_UNISTD_H) && !defined(NO_MEM_LIMITS) + +#include <sys/resource.h> +#include <unistd.h> + +#ifndef MEMLIMIT_MB +#define MEMLIMIT_MB 16.0 +#endif + +void +__set_testsuite_memlimit(float megs = MEMLIMIT_MB) +{ + struct rlimit r; + r.rlim_cur = (rlim_t)(megs * 1048576); + + // heap size, seems to be common +#if HAVE_MEMLIMIT_DATA + setrlimit (RLIMIT_DATA, &r); +#endif + + // resident set size -- Linux? +#if HAVE_MEMLIMIT_RSS + setrlimit (RLIMIT_RSS, &r); +#endif + + // mapped memory (brk+mmap) -- Solaris? +#if HAVE_MEMLIMIT_VMEM + setrlimit (RLIMIT_VMEM, &r); +#endif + + // virtual memory, seems to be common +#if HAVE_MEMLIMIT_AS + setrlimit (RLIMIT_AS, &r); +#endif +} + +#else +// The headers needed for resource limiting are not available. This is +// safe, but means that no memory limits will be applied... ouch. +#define __set_testsuite_memlimit(__junk) +#endif + + + + +#endif // _GLIBCPP_TESTSUITE_HOOKS_H + |