200 lines
6.1 KiB
C++
200 lines
6.1 KiB
C++
/************************************************************************
|
|
*
|
|
* 22.locale.statics.mt.cpp
|
|
*
|
|
* test exercising the thread safety of [lib.locale.statics]
|
|
*
|
|
* $Id: 22.locale.statics.mt.cpp 648752 2008-04-16 17:01:56Z faridz $
|
|
*
|
|
***************************************************************************
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed
|
|
* with this work for additional information regarding copyright
|
|
* ownership. The ASF licenses this file to you under the Apache
|
|
* License, Version 2.0 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
|
* implied. See the License for the specific language governing
|
|
* permissions and limitations under the License.
|
|
*
|
|
* Copyright 2007 Rogue Wave Software, Inc.
|
|
*
|
|
**************************************************************************/
|
|
|
|
#include <locale> // for locale
|
|
#include <cstring> // for strlen()
|
|
|
|
#include <rw_locale.h> // for rw_locales()
|
|
#include <rw_thread.h> // for rw_get_processors(), rw_thread_pool()
|
|
#include <driver.h> // for rw_test()
|
|
|
|
|
|
// maximum number of threads allowed by the command line interface
|
|
#define MAX_THREADS 16
|
|
|
|
// default number of threads (will be adjusted to the number
|
|
// of processors/cores later)
|
|
int opt_nthreads = 1;
|
|
|
|
// the number of times each thread should iterate (unless specified
|
|
// otherwise on the command line)
|
|
int opt_nloops = 20000;
|
|
|
|
int opt_classic;
|
|
int opt_global;
|
|
|
|
/**************************************************************************/
|
|
|
|
// array of locale objects to use for testing
|
|
static std::locale
|
|
locales [MAX_THREADS];
|
|
|
|
// number of locale names in the array
|
|
static std::size_t
|
|
nlocales;
|
|
|
|
/**************************************************************************/
|
|
|
|
extern "C" {
|
|
|
|
static void*
|
|
test_classic (void*)
|
|
{
|
|
static volatile int nthreads;
|
|
|
|
// cast nthreads to int& (see STDCXX-792)
|
|
// casting should be removed after fixing STDCXX-794
|
|
_RWSTD_ATOMIC_PREINCREMENT (_RWSTD_CONST_CAST (int&, nthreads), false);
|
|
|
|
// spin until all threads have been created in order to icrease
|
|
// the odds that at least two of them will hit the tested function
|
|
// (and the lazy one-time initialization done by it) at the same
|
|
// time
|
|
while (nthreads < opt_nthreads);
|
|
|
|
const std::locale classic (std::locale::classic ());
|
|
|
|
_RWSTD_UNUSED (classic);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void*
|
|
test_global (void*)
|
|
{
|
|
for (std::size_t i = 0; i != opt_nloops; ++i) {
|
|
|
|
const std::size_t inx = i % nlocales;
|
|
|
|
const std::locale last (std::locale::global (locales [inx]));
|
|
|
|
_RWSTD_UNUSED (last);
|
|
|
|
// FIXME: verify the consistency of the returned locale
|
|
// by making sure that it matches the locale passed to
|
|
// global() made by the last call to the function by
|
|
// the last thread
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
} // extern "C"
|
|
|
|
/**************************************************************************/
|
|
|
|
static int
|
|
run_test (int, char**)
|
|
{
|
|
int result = 0;
|
|
|
|
if (rw_note (0 <= opt_classic, 0, __LINE__,
|
|
"std::locale::classic() test disabled")) {
|
|
|
|
rw_info (0, 0, 0,
|
|
"testing std::locale::classic() with %d thread%{?}s%{;}",
|
|
opt_nthreads, 1 != opt_nthreads);
|
|
|
|
// create and start a pool of threads and wait for them to finish
|
|
result = rw_thread_pool (0, std::size_t (opt_nthreads), 0,
|
|
test_classic, 0);
|
|
}
|
|
|
|
if (rw_note (0 <= opt_global, 0, __LINE__,
|
|
"std::locale::global(const std::locale&) test disabled")) {
|
|
|
|
|
|
// find all installed locales for which setlocale(LC_ALL) succeeds
|
|
const char* const locale_list =
|
|
rw_opt_locales ? rw_opt_locales : rw_locales (_RWSTD_LC_ALL);
|
|
|
|
const std::size_t maxinx = sizeof locales / sizeof *locales;
|
|
|
|
const char* locale_names [MAX_THREADS];
|
|
|
|
for (const char *name = locale_list;
|
|
*name;
|
|
name += std::strlen (name) + 1) {
|
|
|
|
locale_names [nlocales] = name;
|
|
locales [nlocales++] = std::locale (name);
|
|
|
|
if (nlocales == maxinx)
|
|
break;
|
|
}
|
|
|
|
rw_info (0, 0, 0,
|
|
"testing std::locale::global(const std::locale&) with "
|
|
"%d thread%{?}s%{;}, %d iteration%{?}s%{;} each, in "
|
|
"%zu locales { %{ .*A@} }",
|
|
opt_nthreads, 1 != opt_nthreads,
|
|
opt_nloops, 1 != opt_nloops,
|
|
nlocales, int (nlocales), "%#s", locale_names);
|
|
|
|
// create and start a pool of threads and wait for them to finish
|
|
result = rw_thread_pool (0, std::size_t (opt_nthreads), 0,
|
|
test_global, 0);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
/**************************************************************************/
|
|
|
|
int main (int argc, char *argv[])
|
|
{
|
|
#ifdef _RWSTD_REENTRANT
|
|
|
|
// set nthreads to the greater of the number of processors
|
|
// and 2 (for uniprocessor systems) by default
|
|
opt_nthreads = rw_get_cpus ();
|
|
if (opt_nthreads < 2)
|
|
opt_nthreads = 2;
|
|
|
|
#endif // _RWSTD_REENTRANT
|
|
|
|
return rw_test (argc, argv, __FILE__,
|
|
"lib.locale.statics",
|
|
"thread safety",
|
|
run_test,
|
|
"|-classic~ "
|
|
"|-global~ "
|
|
"|-nloops#0 " // arg must be non-negative
|
|
"|-nthreads#0-* " // arg must be in [0, MAX_THREADS]
|
|
"|-locales= ", // argument must be provided
|
|
&opt_classic,
|
|
&opt_global,
|
|
&opt_nloops,
|
|
int (MAX_THREADS),
|
|
&opt_nthreads,
|
|
&rw_opt_setlocales);
|
|
}
|