first commit
This commit is contained in:
Jose Caban
468
extern/stdcxx/4.2.1/tests/localization/22.locale.num.put.mt.cpp
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468
extern/stdcxx/4.2.1/tests/localization/22.locale.num.put.mt.cpp
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/************************************************************************
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*
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* 22.locale.num.put.mt.cpp
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*
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* test exercising the thread safety of the num_put facet
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*
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* $Id: 22.locale.num.put.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, num_put
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#include <cstring> // for strlen()
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#include <rw_locale.h>
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#include <rw_thread.h> // for rw_get_processors (), rw_thread_pool()
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#include <driver.h>
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#include <valcmp.h>
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#define MAX_THREADS 32
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#define MAX_LOOPS 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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// the number of times each thread should iterate
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int opt_nloops = MAX_LOOPS;
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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 an inefficiency (small cache size?) on HP-UX
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// in LP64 mode (see STDCXX-812)
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int opt_nlocales = 10;
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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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struct MyNumData {
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enum { BufferSize = 32 };
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enum PutId {
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put_bool,
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put_long,
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put_ulong,
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#ifndef _RWSTD_NO_LONG_LONG
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put_llong,
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put_ullong,
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#endif // _RWSTD_NO_LONG_LONG
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put_dbl,
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#ifndef _RWSTD_NO_LONG_DOUBLE
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put_ldbl,
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#endif // _RWSTD_NO_LONG_DOUBLE
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put_ptr,
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put_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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// the value that we will be formatting
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double value_;
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// the type of the data we put
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PutId type_;
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// holds the narrow/wide character representation of value_ and
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// the number of used 'charT' in each buffer.
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char ncs_ [BufferSize];
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#ifndef _RWSTD_NO_WCHAR_T
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wchar_t wcs_ [BufferSize];
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#endif // _RWSTD_NO_WCHAR_T
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} my_num_data [MAX_THREADS];
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/**************************************************************************/
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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 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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template <class charT, class Traits>
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void
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put_data (const MyNumData &data,
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const std::num_put<charT> &np,
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const std::ostreambuf_iterator<charT, Traits> &iter,
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std::basic_ios<charT, Traits> &io,
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charT fill,
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charT term)
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{
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switch (data.type_) {
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case MyNumData::put_bool:
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*np.put (iter, io, fill,
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data.value_ < 1.f) = term;
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break;
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case MyNumData::put_long:
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*np.put (iter, io, fill,
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(long)data.value_) = term;
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break;
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case MyNumData::put_ulong:
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*np.put (iter, io, fill,
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(unsigned long)data.value_) = term;
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break;
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#ifndef _RWSTD_NO_LONG_LONG
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case MyNumData::put_llong:
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*np.put (iter, io, fill,
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(_RWSTD_LONG_LONG)data.value_) = term;
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break;
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case MyNumData::put_ullong:
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*np.put (iter, io, fill,
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(unsigned _RWSTD_LONG_LONG)data.value_) = term;
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break;
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#endif // _RWSTD_NO_LONG_LONG
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case MyNumData::put_dbl:
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*np.put (iter, io, fill,
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(double)data.value_) = term;
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break;
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#ifndef _RWSTD_NO_LONG_DOUBLE
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case MyNumData::put_ldbl:
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*np.put (iter, io, fill,
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(long double)data.value_) = term;
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break;
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#endif // _RWSTD_NO_LONG_DOUBLE
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case MyNumData::put_ptr:
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*np.put (iter, io, fill,
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(const void*)&data.value_) = term;
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break;
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case MyNumData::put_max:
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// avoid enumeration value `put_max' not handled in switch
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// this case should never happen
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break;
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}
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}
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extern "C" {
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bool test_char; // exercise num_put<char>
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bool test_wchar; // exercise num_put<wchar_t>
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static void*
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thread_func (void*)
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{
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char ncs [MyNumData::BufferSize];
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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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wchar_t wcs [MyNumData::BufferSize];
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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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for (int i = 0; i != opt_nloops; ++i) {
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// fill in the value and results for this locale
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const MyNumData& data = my_num_data [i % nlocales];
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// construct a named locale and imbue it in the ios object
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// so that the locale is used not only by the num_put facet
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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::num_put<char> &np =
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std::use_facet<std::num_put<char> >(loc);
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nio.imbue (loc);
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nsb.pubsetp (ncs, RW_COUNT_OF (ncs));
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put_data (data, np, std::ostreambuf_iterator<char>(&nsb),
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nio, ' ', '\0');
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RW_ASSERT (!nio.fail ());
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RW_ASSERT (!rw_strncmp (ncs, data.ncs_));
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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::num_put<wchar_t> &wp =
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std::use_facet<std::num_put<wchar_t> >(loc);
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wio.imbue (loc);
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wsb.pubsetp (wcs, RW_COUNT_OF (wcs));
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put_data (data, wp, std::ostreambuf_iterator<wchar_t>(&wsb),
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wio, L' ', L'\0');
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RW_ASSERT (!wio.fail ());
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RW_ASSERT (!rw_strncmp (wcs, data.wcs_));
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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 value and results for this locale
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MyNumData& data = my_num_data [nlocales];
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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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data.value_ = nlocales & 1 ? -1 * nlocales : nlocales;
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data.type_ = MyNumData::PutId (nlocales % MyNumData::put_max);
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// format data into buffers
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const std::num_put<char> &np =
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std::use_facet<std::num_put<char> >(loc);
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nio.imbue (loc);
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nsb.pubsetp (data.ncs_, RW_COUNT_OF (data.ncs_));
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put_data (data, np, std::ostreambuf_iterator<char>(&nsb),
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nio, ' ', '\0');
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rw_fatal (!nio.fail (), __FILE__, __LINE__,
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"num_put<char>::put(...) failed for locale(%#s)",
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data.locale_name_);
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#ifndef _RWSTD_NO_WCHAR_T
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const std::num_put<wchar_t> &wp =
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std::use_facet<std::num_put<wchar_t> >(loc);
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wio.imbue (loc);
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wsb.pubsetp (data.wcs_, RW_COUNT_OF (data.wcs_));
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put_data (data, wp, std::ostreambuf_iterator<wchar_t>(&wsb),
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wio, L' ', L'\0');
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rw_fatal (!wio.fail (), __FILE__, __LINE__,
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"num_put<wchar_t>::put(...) failed for locale(%#s)",
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data.locale_name_);
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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::num_put<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::num_put<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::num_put<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::num_put<char> and std::num_put<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.num.put",
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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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