1 // Utility subroutines for the C++ library testsuite.
3 // Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 2, or (at your option)
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // You should have received a copy of the GNU General Public License along
17 // with this library; see the file COPYING. If not, write to the Free
18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
21 // As a special exception, you may use this file as part of a free software
22 // library without restriction. Specifically, if other files instantiate
23 // templates or use macros or inline functions from this file, or you compile
24 // this file and link it with other files to produce an executable, this
25 // file does not by itself cause the resulting executable to be covered by
26 // the GNU General Public License. This exception does not however
27 // invalidate any other reasons why the executable file might be covered by
28 // the GNU General Public License.
30 // This file provides the following:
32 // 1) VERIFY(), via DEBUG_ASSERT, from Brent Verner <brent@rcfile.org>.
33 // This file is included in the various testsuite programs to provide
34 // #define(able) assert() behavior for debugging/testing. It may be
35 // a suitable location for other furry woodland creatures as well.
37 // 2) __set_testsuite_memlimit()
38 // __set_testsuite_memlimit() uses setrlimit() to restrict dynamic memory
39 // allocation. We provide a default memory limit if none is passed by the
40 // calling application. The argument to __set_testsuite_memlimit() is the
41 // limit in megabytes (a floating-point number). If _GLIBCPP_MEM_LIMITS is
42 // not #defined before including this header, then no limiting is attempted.
44 // 3) gnu_counting_struct
45 // This is a POD with a static data member, gnu_counting_struct::count,
46 // which starts at zero, increments on instance construction, and decrements
47 // on instance destruction. "assert_count(n)" can be called to VERIFY()
48 // that the count equals N.
50 #ifndef _GLIBCPP_TESTSUITE_HOOKS_H
51 #define _GLIBCPP_TESTSUITE_HOOKS_H
55 # define VERIFY(fn) assert(fn)
57 # define VERIFY(fn) test &= (fn)
60 #include <bits/c++config.h>
62 // Defined in GLIBCPP_CONFIGURE_TESTSUITE.
63 #ifndef _GLIBCPP_MEM_LIMITS
65 // Don't do memory limits.
67 __set_testsuite_memlimit(float x = 0)
73 #include <sys/resource.h>
77 #define MEMLIMIT_MB 16.0
81 __set_testsuite_memlimit(float __size = MEMLIMIT_MB)
84 r.rlim_cur = (rlim_t)(__size * 1048576);
86 // Heap size, seems to be common.
87 #if _GLIBCPP_HAVE_MEMLIMIT_DATA
88 setrlimit(RLIMIT_DATA, &r);
92 #if _GLIBCPP_HAVE_MEMLIMIT_RSS
93 setrlimit(RLIMIT_RSS, &r);
96 // Mapped memory (brk + mmap).
97 #if _GLIBCPP_HAVE_MEMLIMIT_VMEM
98 setrlimit(RLIMIT_VMEM, &r);
102 #if _GLIBCPP_HAVE_MEMLIMIT_AS
103 setrlimit(RLIMIT_AS, &r);
109 struct gnu_counting_struct
111 // Specifically and glaringly-obviously marked 'signed' so that when
112 // count mistakenly goes negative, we can track the patterns of
114 typedef signed int size_type;
115 static size_type count;
116 gnu_counting_struct() { ++count; }
117 gnu_counting_struct (const gnu_counting_struct&) { ++count; }
118 ~gnu_counting_struct() { --count; }
121 #define assert_count(n) VERIFY(gnu_counting_struct::count == n)
123 gnu_counting_struct::size_type gnu_counting_struct::count = 0;
126 #endif // _GLIBCPP_TESTSUITE_HOOKS_H