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From se...@apache.org
Subject svn commit: r557665 - /incubator/stdcxx/trunk/tests/localization/22.locale.ctype.mt.cpp
Date Thu, 19 Jul 2007 15:53:22 GMT
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  <sebor@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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Propchange: incubator/stdcxx/trunk/tests/localization/22.locale.ctype.mt.cpp
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