479 lines
15 KiB
C++
479 lines
15 KiB
C++
/************************************************************************
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*
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* 22.locale.money.get.mt.cpp
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*
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* test exercising the thread safety of the money_get facet
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*
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* $Id: 22.locale.money.get.mt.cpp 648752 2008-04-16 17:01:56Z faridz $
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*
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***************************************************************************
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*
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**************************************************************************/
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#include <ios> // for ios
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#include <iterator> // for ostreambuf_iterator
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#include <locale> // for locale, money_get
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#include <cstring> // for strlen()
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#include <rw_locale.h>
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#include <rw_thread.h>
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#include <driver.h>
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#include <valcmp.h> // for rw_strncmp ()
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// maximum number of threads allowed by the command line interface
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#define MAX_THREADS 32
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#define MAX_LOOPS 100000
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// the number of times each thread should iterate (unless specified
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// otherwise on the command line)
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int opt_nloops = 100000;
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// default number of threads (will be adjusted to the number
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// of processors/cores later)
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int opt_nthreads = 1;
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#if !defined (_RWSTD_OS_HP_UX) || defined (_ILP32)
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// number of locales to use
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int opt_nlocales = MAX_THREADS;
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#else // HP-UX in LP64 mode
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// work around a small cache size on HP-UX in LP64 mode
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// in LP64 mode (see STDCXX-812)
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int opt_nlocales = 9;
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#endif // HP-UX 32/64 bit mode
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// should all threads share the same set of locale objects instead
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// of creating their own?
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int opt_shared_locale;
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/**************************************************************************/
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// array of locale names to use for testing
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static const char*
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locales [MAX_THREADS];
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// number of locale names in the array
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static std::size_t
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nlocales;
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/**************************************************************************/
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//
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struct MyMoneyData
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{
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enum { BufferSize = 16 };
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enum GetId {
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get_ldbl,
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get_string,
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get_max
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};
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// name of the locale the data corresponds to
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const char* locale_name_;
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// optionally set to the named locale for threads to share
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std::locale locale_;
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// international or domestic format flag
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bool intl_;
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//
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long double units_;
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// narrow locale specific representations of units_
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char ncs_ [BufferSize];
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std::string ncs_digits_;
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#ifndef _RWSTD_NO_WCHAR_T
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// wide locale specific representations of units_
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wchar_t wcs_ [BufferSize];
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std::wstring wcs_digits_;
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#endif // _RWSTD_NO_WCHAR_T
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} my_money_data [MAX_THREADS];
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template <class charT, class Traits>
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struct MyIos: std::basic_ios<charT, Traits>
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{
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MyIos () {
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this->init (0);
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}
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};
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template <class charT, class Traits>
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struct MyStreambuf: std::basic_streambuf<charT, Traits>
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{
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typedef std::basic_streambuf<charT, Traits> Base;
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MyStreambuf ()
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: Base () {
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}
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void pubsetg (const charT *gbeg, std::streamsize n) {
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this->setg (_RWSTD_CONST_CAST (charT*, gbeg),
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_RWSTD_CONST_CAST (charT*, gbeg),
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_RWSTD_CONST_CAST (charT*, gbeg) + n);
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}
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void pubsetp (charT *pbeg, std::streamsize n) {
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this->setp (pbeg, pbeg + n);
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}
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};
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extern "C" {
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bool test_char; // exercise money_get<char>
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bool test_wchar; // exercise money_get<wchar_t>
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static void*
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thread_func (void*)
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{
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MyIos<char, std::char_traits<char> > nio;
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MyStreambuf<char, std::char_traits<char> > nsb;
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std::basic_string<char, std::char_traits<char> > str;
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nio.rdbuf (&nsb);
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#ifndef _RWSTD_NO_WCHAR_T
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MyIos<wchar_t, std::char_traits<wchar_t> > wio;
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MyStreambuf<wchar_t, std::char_traits<wchar_t> > wsb;
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std::basic_string<wchar_t, std::char_traits<wchar_t> > wstr;
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wio.rdbuf (&wsb);
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#endif // _RWSTD_NO_WCHAR_T
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std::ios_base::iostate state = std::ios_base::goodbit;
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#ifndef _RWSTD_NO_LONG_DOUBLE
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long double ldbl = 0.;
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#endif // _RWSTD_NO_LONG_DOUBLE
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for (int i = 0; i != opt_nloops; ++i) {
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// save the name of the locale
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const MyMoneyData& data = my_money_data [i % nlocales];
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// construct a named locale, get a reference to the money_get
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// facet from it and use it to format a random money value
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const std::locale loc =
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opt_shared_locale ? data.locale_
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: std::locale (data.locale_name_);
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if (test_char) {
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// exercise the narrow char specialization of the facet
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const std::money_get<char> &ng =
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std::use_facet<std::money_get<char> >(loc);
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nio.imbue (loc);
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nsb.pubsetg (data.ncs_, RW_COUNT_OF (data.ncs_));
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if (i & 1) {
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ng.get (std::istreambuf_iterator<char>(&nsb),
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std::istreambuf_iterator<char>(),
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data.intl_, nio, state, ldbl);
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RW_ASSERT (! (state & std::ios_base::failbit));
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RW_ASSERT (! rw_ldblcmp (ldbl, data.units_));
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}
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else {
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ng.get (std::istreambuf_iterator<char>(&nsb),
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std::istreambuf_iterator<char>(),
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data.intl_, nio, state, str);
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RW_ASSERT (! (state & std::ios_base::failbit));
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RW_ASSERT (! rw_strncmp (str.c_str (),
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data.ncs_digits_.c_str ()));
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}
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}
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// both specializations may be tested at the same time
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if (test_wchar) {
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// exercise the wide char specialization of the facet
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#ifndef _RWSTD_NO_WCHAR_T
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const std::money_get<wchar_t> &wg =
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std::use_facet<std::money_get<wchar_t> >(loc);
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wio.imbue (loc);
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wsb.pubsetg (data.wcs_, RW_COUNT_OF (data.wcs_));
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if (i & 1) {
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wg.get (std::istreambuf_iterator<wchar_t>(&wsb),
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std::istreambuf_iterator<wchar_t>(),
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data.intl_, wio, state, ldbl);
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RW_ASSERT (! (state & std::ios_base::failbit));
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RW_ASSERT (! rw_ldblcmp (ldbl, data.units_));
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}
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else {
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wg.get (std::istreambuf_iterator<wchar_t>(&wsb),
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std::istreambuf_iterator<wchar_t>(),
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data.intl_, wio, state, wstr);
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RW_ASSERT (! (state & std::ios_base::failbit));
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RW_ASSERT (! rw_strncmp(wstr.c_str (),
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data.wcs_digits_.c_str ()));
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}
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#endif // _RWSTD_NO_WCHAR_T
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}
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}
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return 0;
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}
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} // extern "C"
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/**************************************************************************/
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static int
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run_test (int, char**)
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{
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MyIos<char, std::char_traits<char> > nio;
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MyStreambuf<char, std::char_traits<char> > nsb;
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nio.rdbuf (&nsb);
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#ifndef _RWSTD_NO_WCHAR_T
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MyIos<wchar_t, std::char_traits<wchar_t> > wio;
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MyStreambuf<wchar_t, std::char_traits<wchar_t> > wsb;
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wio.rdbuf (&wsb);
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#endif // _RWSTD_NO_WCHAR_T
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// find all installed locales for which setlocale (LC_ALL) succeeds
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const char* const locale_list =
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rw_opt_locales ? rw_opt_locales : rw_locales (_RWSTD_LC_ALL);
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const std::size_t maxinx = RW_COUNT_OF (locales);
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for (const char* name = locale_list;
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*name;
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name += std::strlen (name) + 1) {
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const std::size_t inx = nlocales;
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locales [inx] = name;
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// fill in the money and results for this locale
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MyMoneyData& data = my_money_data [inx];
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data.locale_name_ = name;
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try {
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const std::locale loc (data.locale_name_);
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// exercise domestic formats every other iteration
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// and international formats the rest
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data.intl_ = 0 == (inx & 5);
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// initialize with random but valid values
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long double units = 1.f + inx;
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// exercise postive and negative values
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if (inx & 1)
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units += (units * 3.14159);
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else
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units -= (units * 2.71828);
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// local scope
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{
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const std::money_put<char> &np =
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std::use_facet<std::money_put<char> >(loc);
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const std::money_get<char> &ng =
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std::use_facet<std::money_get<char> >(loc);
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std::ios::iostate state = std::ios::goodbit;
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nio.imbue (loc);
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// write the value to buffer from long double
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nsb.pubsetp (data.ncs_, RW_COUNT_OF (data.ncs_));
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*np.put (std::ostreambuf_iterator<char>(&nsb),
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data.intl_, nio, ' ', units) = '\0';
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rw_fatal (!nio.fail (), __FILE__, __LINE__,
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"money_put<char>::put(...) "
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"failed for locale(%#s)", data.locale_name_);
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// read the value back so threads know what to expect
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nsb.pubsetg (data.ncs_, RW_COUNT_OF (data.ncs_));
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ng.get (std::istreambuf_iterator<char>(&nsb),
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std::istreambuf_iterator<char>(),
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data.intl_, nio, state, data.units_);
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// read back as string, again for threads
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nsb.pubsetg (data.ncs_, RW_COUNT_OF (data.ncs_));
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ng.get (std::istreambuf_iterator<char>(&nsb),
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std::istreambuf_iterator<char>(),
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data.intl_, nio, state, data.ncs_digits_);
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if (state & std::ios_base::failbit)
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continue;
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}
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#ifndef _RWSTD_NO_WCHAR_T
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// local scope
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{
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const std::money_put<wchar_t> &wp =
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std::use_facet<std::money_put<wchar_t> >(loc);
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const std::money_get<wchar_t> &wg =
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std::use_facet<std::money_get<wchar_t> >(loc);
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std::ios::iostate state = std::ios::goodbit;
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wio.imbue (loc);
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// write the value to buffer from long double
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wsb.pubsetp (data.wcs_, RW_COUNT_OF (data.wcs_));
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*wp.put (std::ostreambuf_iterator<wchar_t>(&wsb),
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data.intl_, wio, L' ', units) = L'\0';
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rw_fatal (!nio.fail (), __FILE__, __LINE__,
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"money_put<wchar_t>::put(...) "
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"failed for locale(%#s)", data.locale_name_);
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// read back as string, again for threads
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wsb.pubsetg (data.wcs_, RW_COUNT_OF (data.wcs_));
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wg.get (std::istreambuf_iterator<wchar_t>(&wsb),
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std::istreambuf_iterator<wchar_t>(),
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data.intl_, wio, state, data.wcs_digits_);
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if (state & std::ios_base::failbit)
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continue;
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}
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#endif // _RWSTD_NO_WCHAR_T
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if (opt_shared_locale)
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data.locale_ = loc;
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nlocales += 1;
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}
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catch (...) {
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rw_warn (!rw_opt_locales, 0, __LINE__,
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"failed to create locale(%#s)", name);
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}
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if (nlocales == maxinx || nlocales == std::size_t (opt_nlocales))
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break;
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}
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// avoid divide by zero in thread if there are no locales to test
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rw_fatal (nlocales != 0, 0, __LINE__,
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"failed to create one or more usable locales!");
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rw_info (0, 0, 0,
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"testing std::money_get<charT> with %d thread%{?}s%{;}, "
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"%d iteration%{?}s%{;} each, in %zu locales { %{ .*A@} }",
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opt_nthreads, 1 != opt_nthreads,
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opt_nloops, 1 != opt_nloops,
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nlocales, int (nlocales), "%#s", locales);
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rw_info (0, 0, 0, "exercising std::money_get<char>");
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test_char = true;
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test_wchar = false;
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// create and start a pool of threads and wait for them to finish
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int result =
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rw_thread_pool (0, std::size_t (opt_nthreads), 0, thread_func, 0);
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rw_error (result == 0, 0, __LINE__,
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"rw_thread_pool(0, %d, 0, %{#f}, 0) failed",
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opt_nthreads, thread_func);
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#ifndef _RWSTD_NO_WCHAR_T
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rw_info (0, 0, 0, "exercising std::money_get<wchar_t>");
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test_char = false;
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test_wchar = true;
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// start a pool of threads to exercise wstring thread safety
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result =
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rw_thread_pool (0, std::size_t (opt_nthreads), 0, thread_func, 0);
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rw_error (result == 0, 0, __LINE__,
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"rw_thread_pool(0, %d, 0, %{#f}, 0) failed",
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opt_nthreads, thread_func);
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// exercise both the char and the wchar_t specializations
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// at the same time
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rw_info (0, 0, 0,
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"exercising both std::money_get<char> "
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"and std::money_get<wchar_t>");
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test_char = true;
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test_wchar = true;
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// start a pool of threads to exercise wstring thread safety
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result =
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rw_thread_pool (0, std::size_t (opt_nthreads), 0, thread_func, 0);
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rw_error (result == 0, 0, __LINE__,
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"rw_thread_pool(0, %d, 0, %{#f}, 0) failed",
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opt_nthreads, thread_func);
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#endif // _RWSTD_NO_WCHAR_T
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return result;
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}
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/**************************************************************************/
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int main (int argc, char *argv[])
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{
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#ifdef _RWSTD_REENTRANT
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// set nthreads to the greater of the number of processors
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// and 2 (for uniprocessor systems) by default
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opt_nthreads = rw_get_cpus ();
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if (opt_nthreads < 2)
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opt_nthreads = 2;
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#endif // _RWSTD_REENTRANT
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return rw_test (argc, argv, __FILE__,
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"lib.locale.money.get",
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"thread safety", run_test,
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"|-nloops#0 " // must be non-negative
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"|-nthreads#0-* " // must be in [0, MAX_THREADS]
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"|-nlocales#0 " // arg must be non-negative
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"|-locales= " // must be provided
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"|-shared-locale# ",
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&opt_nloops,
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int (MAX_THREADS),
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&opt_nthreads,
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&opt_nlocales,
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&rw_opt_setlocales,
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&opt_shared_locale);
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}
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