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Posted to commits@stdcxx.apache.org by se...@apache.org on 2007/07/19 17:53:22 UTC
svn commit: r557665 -
/incubator/stdcxx/trunk/tests/localization/22.locale.ctype.mt.cpp
Author: sebor
Date: Thu Jul 19 08:53:21 2007
New Revision: 557665
URL: http://svn.apache.org/viewvc?view=rev&rev=557665
Log:
2007-07-19 Martin Sebor <se...@roguewave.com>
* 22.locale.ctype.mt.cpp: New test exercising the thread safety
of the member functions narrow() and widen() of the two required
specializations of the ctype facet.
Added:
incubator/stdcxx/trunk/tests/localization/22.locale.ctype.mt.cpp (with props)
Added: incubator/stdcxx/trunk/tests/localization/22.locale.ctype.mt.cpp
URL: http://svn.apache.org/viewvc/incubator/stdcxx/trunk/tests/localization/22.locale.ctype.mt.cpp?view=auto&rev=557665
==============================================================================
--- incubator/stdcxx/trunk/tests/localization/22.locale.ctype.mt.cpp (added)
+++ incubator/stdcxx/trunk/tests/localization/22.locale.ctype.mt.cpp Thu Jul 19 08:53:21 2007
@@ -0,0 +1,321 @@
+/************************************************************************
+ *
+ * 22.locale.ctype.mt.cpp
+ *
+ * test exercising the thread safety of the ctype facet
+ *
+ * $Id$
+ *
+ ***************************************************************************
+ *
+ * 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.
+ *
+ **************************************************************************/
+
+#include <locale> // for locale, ctype
+
+#include <clocale> // for lconv, localeconv()
+#include <cstdlib> // for mbstowcs()
+#include <cstring> // for size_t, strcpy()
+
+#include <rw_locale.h>
+#include <rw_thread.h>
+#include <driver.h>
+#include <valcmp.h>
+
+
+// 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 = 200000;
+
+// number of locales to use
+int opt_nlocales = MAX_THREADS;
+
+// should all threads share the same set of locale objects instead
+// of creating their own?
+int opt_shared_locale;
+
+/**************************************************************************/
+
+// array of locale names to use for testing
+static const char*
+locales [MAX_THREADS];
+
+// number of locale names in the array
+static std::size_t
+nlocales;
+
+/**************************************************************************/
+
+struct CtypeData
+{
+ // the name of the locale the data corresponds to
+ const char *locale_name_;
+
+ // optionally set to the named locale for the threads to share
+ std::locale locale_;
+
+ // results of ctype<charT>::widen(char) for char and wchar_t
+ char widened_ [256];
+ wchar_t wwidened_ [256];
+
+ // array of wide characters to narrow and the number
+ // of valid elements in the array
+ wchar_t wide_ [1024];
+ std::size_t nwide_;
+
+ // results of ctype<charT>::narrow(charT, char) for char
+ // and wchar_t values of wide_ [i]
+ char narrowed_ [256];
+ char wnarrowed_ [1024];
+
+} ctype_data [MAX_THREADS];
+
+
+extern "C" {
+
+bool test_char; // exercise num_put<char>
+bool test_wchar; // exercise num_put<wchar_t>
+
+
+static void*
+thread_func (void*)
+{
+ // number of narrow characters to test (should be 256)
+ const std::size_t nchars =
+ sizeof ctype_data->widened_ / sizeof *ctype_data->widened_;
+
+ for (int i = 0; i != opt_nloops; ++i) {
+
+ const std::size_t inx = std::size_t (i) % nlocales;
+
+ // save the name of the locale
+ const char* const locale_name = locales [inx];
+
+ const CtypeData* const data = ctype_data + inx;
+
+ // construct a named locale
+ const std::locale loc =
+ opt_shared_locale ? data->locale_ : std::locale (locale_name);
+
+ // "random" index/character value
+ const std::size_t cinx = std::size_t (i) % nchars;
+
+ if (test_char) {
+ // exercise the narrow char specialization of the facet
+
+ const std::ctype<char> &ct =
+ std::use_facet<std::ctype<char> >(loc);
+
+ const char wc = ct.widen (char (cinx));
+
+ RW_ASSERT (wc == data->widened_ [cinx]);
+
+ const char nc = ct.narrow (char (cinx), '\0');
+
+ RW_ASSERT (nc == data->narrowed_ [cinx]);
+ }
+
+ // both specializations may be tested at the same time
+
+ if (test_wchar) {
+ // exercise the wide char specialization of the facet
+
+#ifndef _RWSTD_NO_WCHAR_T
+
+ const std::ctype<wchar_t> &wct =
+ std::use_facet<std::ctype<wchar_t> >(loc);
+
+ // "random" index into the wide character array
+ const std::size_t winx =
+ std::size_t (i) % data->nwide_;
+
+ const wchar_t wc = wct.widen (char (cinx));
+
+ RW_ASSERT (wc == data->wwidened_ [cinx]);
+
+ const char nc = wct.narrow (data->wide_ [winx], L'\0');
+
+ RW_ASSERT (nc == data->wnarrowed_ [winx]);
+
+#endif // _RWSTD_NO_WCHAR_T
+
+ }
+ }
+
+ return 0;
+}
+
+} // extern "C"
+
+/**************************************************************************/
+
+static int
+run_test (int, char**)
+{
+ // 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;
+
+ // iterate over locales, initializing a global ctype_data array
+ // with LC_CTYPE data obtained from each locale
+ for (const char *name = locale_list; *name;
+ name += std::strlen (name) + 1) {
+
+ const std::size_t inx = nlocales;
+
+ locales [inx] = name;
+
+ CtypeData* const pdata = ctype_data + nlocales;
+
+ // compute the number of wide characters to populate
+ const std::size_t nwide =
+ sizeof pdata->wide_ / sizeof pdata->wide_ [0];
+
+ try {
+ const std::locale loc (name);
+
+ const std::ctype<char> &ct =
+ std::use_facet<std::ctype<char> >(loc);
+
+ const std::ctype<wchar_t> &wct =
+ std::use_facet<std::ctype<wchar_t> >(loc);
+
+ pdata->locale_name_ = name;
+
+ const std::size_t nchars =
+ sizeof pdata->widened_ / sizeof *pdata->widened_;
+
+ for (std::size_t i = 0; i != nchars; ++i) {
+ pdata->widened_ [i] = ct.widen (char (i));
+ pdata->wwidened_ [i] = wct.widen (char (i));
+ pdata->narrowed_ [i] = ct.narrow (char (i), '\0');
+ }
+
+ pdata->nwide_ = rw_get_wchars (pdata->wide_, nwide);
+ for (std::size_t i = 0; i != pdata->nwide_; ++i)
+ pdata->wnarrowed_ [i] = wct.narrow (pdata->wide_ [i], L'\0');
+
+ if (opt_shared_locale)
+ pdata->locale_ = loc;
+
+ ++nlocales;
+ }
+ catch (...) {
+ // skip over a bad locale
+ }
+
+ if (nlocales == maxinx || nlocales == std::size_t (opt_nlocales))
+ break;
+ }
+
+ rw_info (0, 0, 0,
+ "testing std::ctype<charT> with %d thread%{?}s%{;}, "
+ "%zu iteration%{?}s%{;} each, in %zu locales { %{ .*A@} }",
+ opt_nthreads, 1 != opt_nthreads,
+ opt_nloops, 1 != opt_nloops,
+ nlocales, int (nlocales), "%#s", locales);
+
+ rw_info (0, 0, 0, "exercising std::ctype<char>");
+
+ test_char = true;
+ test_wchar = false;
+
+ // create and start a pool of threads and wait for them to finish
+ int result =
+ rw_thread_pool (0, std::size_t (opt_nthreads), 0, thread_func, 0);
+
+ rw_error (result == 0, 0, __LINE__,
+ "rw_thread_pool(0, %d, 0, %{#f}, 0) failed",
+ opt_nthreads, thread_func);
+
+#ifndef _RWSTD_NO_WCHAR_T
+
+ rw_info (0, 0, 0, "exercising std::ctype<wchar_t>");
+
+ test_char = false;
+ test_wchar = true;
+
+ // start a pool of threads to exercise the thread safety
+ // of the wchar_t specialization
+ result =
+ rw_thread_pool (0, std::size_t (opt_nthreads), 0, thread_func, 0);
+
+ rw_error (result == 0, 0, __LINE__,
+ "rw_thread_pool(0, %d, 0, %{#f}, 0) failed",
+ opt_nthreads, thread_func);
+
+ // exercise both the char and the wchar_t specializations
+ // at the same time
+
+ rw_info (0, 0, 0,
+ "exercising both std::ctype<char> and std::ctype<wchar_t>");
+
+ test_char = true;
+ test_wchar = true;
+
+ // start a pool of threads to exercise wstring thread safety
+ result =
+ rw_thread_pool (0, std::size_t (opt_nthreads), 0, thread_func, 0);
+
+ rw_error (result == 0, 0, __LINE__,
+ "rw_thread_pool(0, %d, 0, %{#f}, 0) failed",
+ opt_nthreads, thread_func);
+
+#endif // _RWSTD_NO_WCHAR_T
+
+ 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.ctype",
+ "thread safety", run_test,
+ "|-nloops#0 " // arg must be non-negative
+ "|-nthreads#0-* " // arg must be in [0, MAX_THREADS]
+ "|-nlocales#0 " // arg must be non-negative
+ "|-locales= " // arg must be provided
+ "|-shared-locale# ",
+ &opt_nloops,
+ int (MAX_THREADS),
+ &opt_nthreads,
+ &opt_nlocales,
+ &rw_opt_setlocales,
+ &opt_shared_locale);
+}
Propchange: incubator/stdcxx/trunk/tests/localization/22.locale.ctype.mt.cpp
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