mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-22 22:49:52 +08:00
128 lines
4.0 KiB
C
128 lines
4.0 KiB
C
// Utility subroutines for the C++ library testsuite.
|
|
//
|
|
// Copyright (C) 2000, 2001, 2002 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 _GLIBCPP_MEM_LIMITS is
|
|
// not #defined before including this header, then no limiting is attempted.
|
|
//
|
|
// 3) gnu_counting_struct
|
|
// This is a POD with a static data member, gnu_counting_struct::count,
|
|
// which starts at zero, increments on instance construction, and decrements
|
|
// on instance destruction. "assert_count(n)" can be called to VERIFY()
|
|
// that the count equals N.
|
|
|
|
#ifndef _GLIBCPP_TESTSUITE_HOOKS_H
|
|
#define _GLIBCPP_TESTSUITE_HOOKS_H
|
|
|
|
#ifdef DEBUG_ASSERT
|
|
# include <cassert>
|
|
# define VERIFY(fn) assert(fn)
|
|
#else
|
|
# define VERIFY(fn) test &= (fn)
|
|
#endif
|
|
|
|
#include <bits/c++config.h>
|
|
|
|
// Defined in GLIBCPP_CONFIGURE_TESTSUITE.
|
|
#ifndef _GLIBCPP_MEM_LIMITS
|
|
|
|
// Don't do memory limits.
|
|
void
|
|
__set_testsuite_memlimit(float x = 0)
|
|
{ }
|
|
|
|
#else
|
|
|
|
// Do memory limits.
|
|
#include <sys/resource.h>
|
|
#include <unistd.h>
|
|
|
|
#ifndef MEMLIMIT_MB
|
|
#define MEMLIMIT_MB 16.0
|
|
#endif
|
|
|
|
void
|
|
__set_testsuite_memlimit(float __size = MEMLIMIT_MB)
|
|
{
|
|
struct rlimit r;
|
|
r.rlim_cur = (rlim_t)(__size * 1048576);
|
|
|
|
// Heap size, seems to be common.
|
|
#if _GLIBCPP_HAVE_MEMLIMIT_DATA
|
|
setrlimit(RLIMIT_DATA, &r);
|
|
#endif
|
|
|
|
// Resident set size.
|
|
#if _GLIBCPP_HAVE_MEMLIMIT_RSS
|
|
setrlimit(RLIMIT_RSS, &r);
|
|
#endif
|
|
|
|
// Mapped memory (brk + mmap).
|
|
#if _GLIBCPP_HAVE_MEMLIMIT_VMEM
|
|
setrlimit(RLIMIT_VMEM, &r);
|
|
#endif
|
|
|
|
// Virtual memory.
|
|
#if _GLIBCPP_HAVE_MEMLIMIT_AS
|
|
setrlimit(RLIMIT_AS, &r);
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
|
|
struct gnu_counting_struct
|
|
{
|
|
// Specifically and glaringly-obviously marked 'signed' so that when
|
|
// count mistakenly goes negative, we can track the patterns of
|
|
// deletions easier.
|
|
typedef signed int size_type;
|
|
static size_type count;
|
|
gnu_counting_struct() { ++count; }
|
|
gnu_counting_struct (const gnu_counting_struct&) { ++count; }
|
|
~gnu_counting_struct() { --count; }
|
|
};
|
|
|
|
#define assert_count(n) VERIFY(gnu_counting_struct::count == n)
|
|
|
|
gnu_counting_struct::size_type gnu_counting_struct::count = 0;
|
|
|
|
|
|
#endif // _GLIBCPP_TESTSUITE_HOOKS_H
|
|
|