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From se...@apache.org
Subject svn commit: r570286 - /incubator/stdcxx/trunk/tests/localization/22.locale.time.get.mt.cpp
Date Tue, 28 Aug 2007 00:59:34 GMT
Author: sebor
Date: Mon Aug 27 17:59:34 2007
New Revision: 570286

URL: http://svn.apache.org/viewvc?rev=570286&view=rev
Log:
2007-08-28  Travis Vitek  <vitek@roguewave.com>

	* 22.locale.time.get.mt.cpp: New test exercising the thread safety
	of the std::time_get facet. When compiled against the latest trunk
	the test crashes due to what's most likely a library bug that still
	remains to be analyzed.

Added:
    incubator/stdcxx/trunk/tests/localization/22.locale.time.get.mt.cpp   (with props)

Added: incubator/stdcxx/trunk/tests/localization/22.locale.time.get.mt.cpp
URL: http://svn.apache.org/viewvc/incubator/stdcxx/trunk/tests/localization/22.locale.time.get.mt.cpp?rev=570286&view=auto
==============================================================================
--- incubator/stdcxx/trunk/tests/localization/22.locale.time.get.mt.cpp (added)
+++ incubator/stdcxx/trunk/tests/localization/22.locale.time.get.mt.cpp Mon Aug 27 17:59:34
2007
@@ -0,0 +1,527 @@
+/************************************************************************
+ *
+ * 22.locale.time.get.mt.cpp
+ *
+ * test exercising the thread safety of the time_get 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.
+ *
+ * Copyright 2002-2007 Rogue Wave Software.
+ * 
+ **************************************************************************/
+#include <ios>        // for ios
+#include <iterator>   // for ostreambuf_iterator
+#include <locale>     // for locale, time_put
+#include <cstring>    // for strlen ()
+#include <ctime>      // for tm
+
+#include <rw_locale.h>
+#include <rw_thread.h>
+#include <driver.h>    // for rw_assert ()
+#include <valcmp.h>    // for rw_strncmp ()
+
+#define MAX_THREADS      32
+#define MAX_LOOPS    100000
+
+// default number of threads (will be adjusted to the number
+// of processors/cores later)
+int rw_opt_nthreads = 1;
+
+// the number of times each thread should iterate
+int rw_opt_nloops = 50000;
+
+// number of locales to use
+int rw_opt_nlocales = MAX_THREADS;
+
+// should all threads share the same set of locale objects instead
+// of creating their own?
+int rw_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 MyTimeData
+{
+    enum { BufferSize = 64 };
+
+    // name of the locale the data corresponds to
+    const char* locale_name_;
+
+    // optionally set to the named locale for threads to share
+    std::locale locale_;
+
+    // the time struct used to generate strings below
+    std::tm time_;
+
+    // the type specifier
+    char format_;
+
+    // narrow representations of time_ given the 
+    // locale_name_ and the format_
+    char ncs_ [BufferSize];
+    
+#ifndef _RWSTD_NO_WCHAR_T
+
+    // wide representations of time_
+    wchar_t wcs_ [BufferSize];
+
+#endif // _RWSTD_NO_WCHAR_T
+
+} my_time_data [MAX_THREADS];
+
+
+template <class charT, class Traits>
+struct MyIos: std::basic_ios<charT, Traits>
+{
+    MyIos () {
+        this->init (0);
+    }
+};
+
+
+template <class charT, class Traits>
+struct MyStreambuf: std::basic_streambuf<charT, Traits>
+{
+    typedef std::basic_streambuf<charT, Traits> Base;
+
+    MyStreambuf ()
+        : Base () {
+    }
+
+    void pubsetg (const charT *gbeg, std::streamsize n) {
+        this->setg (_RWSTD_CONST_CAST (charT*, gbeg),
+                    _RWSTD_CONST_CAST (charT*, gbeg),
+                    _RWSTD_CONST_CAST (charT*, gbeg) + n);
+    }
+
+    void pubsetp (charT *pbeg, std::streamsize n) {
+        this->setp (pbeg, pbeg + n);
+    }
+};
+
+void verify_fields (const std::tm& a, const std::tm& b)
+{
+    RW_ASSERT (a.tm_sec  == b.tm_sec);
+    RW_ASSERT (a.tm_min  == b.tm_min);
+    RW_ASSERT (a.tm_hour == b.tm_hour);
+    RW_ASSERT (a.tm_mday == b.tm_mday);
+    RW_ASSERT (a.tm_mon  == b.tm_mon);
+    RW_ASSERT (a.tm_year == b.tm_year);
+    RW_ASSERT (a.tm_wday == b.tm_wday);
+    RW_ASSERT (a.tm_yday == b.tm_yday);
+}
+#define RW_ASSERT_FIELDS(a,b) verify_fields(a,b)
+
+extern "C" {
+
+bool test_char;    // exercise time_get<char>
+bool test_wchar;   // exercise time_get<wchar_t>
+
+
+static void*
+thread_func (void*)
+{
+    MyIos<char, std::char_traits<char> >       nio;
+    MyStreambuf<char, std::char_traits<char> > nsb;
+    nio.rdbuf (&nsb);
+
+#ifndef _RWSTD_NO_WCHAR_T
+    MyIos<wchar_t, std::char_traits<wchar_t> >       wio;
+    MyStreambuf<wchar_t, std::char_traits<wchar_t> > wsb;
+    wio.rdbuf (&wsb);
+#endif // _RWSTD_NO_WCHAR_T
+
+    std::ios_base::iostate state = std::ios_base::goodbit;
+
+    std::tm local;
+    for (int i = 0; i != rw_opt_nloops; ++i) {
+
+        // save the name of the locale
+        const MyTimeData& data = my_time_data [i % nlocales];
+
+        // construct a named locale, get a reference to the time_put
+        // facet from it and use it to format a random time value
+        // using a random conversion specifier
+        const std::locale loc =
+            rw_opt_shared_locale ? data.locale_
+                                 : std::locale (data.locale_name_);
+
+        if (test_char) {
+            // exercise the narrow char specialization of the facet
+
+            const std::time_get<char> &ng =
+                std::use_facet<std::time_get<char> >(loc);
+
+            nio.imbue (loc);
+            nsb.pubsetg (data.ncs_, RW_COUNT_OF (data.ncs_));
+            
+            const std::istreambuf_iterator<char> iter (&nsb);
+            const std::istreambuf_iterator<char> end;
+
+            std::memset (&local, 0, sizeof local);
+
+            switch (data.format_) {
+            case 'X':
+                ng.get_time (iter, end, nio, state, &local);
+                break;
+            case 'x':
+                ng.get_date (iter, end, nio, state, &local);
+                break;
+            case 'a':
+            case 'A':
+                ng.get_weekday (iter, end, nio, state, &local);
+                break;
+            case 'b':
+            case 'B':
+                ng.get_monthname (iter, end, nio, state, &local);
+                break;
+            case 'y':
+            case 'Y':
+                ng.get_year (iter, end, nio, state, &local);
+                break;
+            default:
+
+#ifndef _RWSTD_NO_EXT_TIME_GET
+                ng.get (iter, end, nio, state, &local, data.format_);
+#endif  // _RWSTD_NO_EXT_TIME_GET
+
+                break;
+            }
+
+            RW_ASSERT (! (state & std::ios_base::failbit));
+            RW_ASSERT_FIELDS (local, data.time_);
+        }
+
+        // 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::time_get<wchar_t> &wg =
+                std::use_facet<std::time_get<wchar_t> >(loc);
+
+            wio.imbue (loc);
+            wsb.pubsetg (data.wcs_, RW_COUNT_OF (data.wcs_));
+
+            const std::istreambuf_iterator<wchar_t> iter (&wsb);
+            const std::istreambuf_iterator<wchar_t> end;
+
+            std::memset (&local, 0, sizeof local);
+            
+            switch (data.format_) {
+            case 'X':
+                wg.get_time (iter, end, wio, state, &local);
+                break;
+            case 'x':
+                wg.get_date (iter, end, wio, state, &local);
+                break;
+            case 'a':
+            case 'A':
+                wg.get_weekday (iter, end, wio, state, &local);
+                break;
+            case 'b':
+            case 'B':
+                wg.get_monthname (iter, end, wio, state, &local);
+                break;
+            case 'y':
+            case 'Y':
+                wg.get_year (iter, end, wio, state, &local);
+                break;
+            default:
+
+#ifndef _RWSTD_NO_EXT_TIME_GET
+                wg.get (iter, end, wio, state, &local, data.format_);
+#endif  // _RWSTD_NO_EXT_TIME_GET
+
+                break;
+            }
+
+            RW_ASSERT (! (state & std::ios_base::failbit));
+            RW_ASSERT_FIELDS (local, data.time_);
+
+#endif // _RWSTD_NO_WCHAR_T
+
+        }
+    }
+
+    return 0;
+}
+
+}   // extern "C"
+
+/**************************************************************************/
+
+static int
+run_test (int, char**)
+{
+    MyIos<char, std::char_traits<char> >       nio;
+    MyStreambuf<char, std::char_traits<char> > nsb;
+    nio.rdbuf (&nsb);
+
+#ifndef _RWSTD_NO_WCHAR_T
+    MyIos<wchar_t, std::char_traits<wchar_t> >       wio;
+    MyStreambuf<wchar_t, std::char_traits<wchar_t> > wsb;
+    wio.rdbuf (&wsb);
+#endif // _RWSTD_NO_WCHAR_T
+
+    // 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 = RW_COUNT_OF (locales);
+
+    int j = 0;
+    for (const char* name = locale_list;
+         *name;
+         name += std::strlen (name) + 1) {
+
+        const std::size_t inx = nlocales;
+        locales [inx] = name;
+
+        // fill in the time and results for this locale
+        MyTimeData& data = my_time_data [inx];
+        data.locale_name_ = name;
+
+        // initialize tm with random but valid values
+        std::memset (&data.time_, 0, sizeof data.time_);
+        data.time_.tm_sec  = ++j % 61;
+        data.time_.tm_min  = ++j % 60;
+        data.time_.tm_hour = ++j % 12;
+        data.time_.tm_wday = ++j % 7;
+        data.time_.tm_mon  = ++j % 12;
+        data.time_.tm_mday = ++j % 31;
+        data.time_.tm_yday = ++j % 366;
+        data.time_.tm_year = ++j;
+
+#ifndef _RWSTD_NO_EXT_TIME_GET
+        // format specifiers that we can reliably parse
+        // get_weekday, get_monthname, get_date, get_time,
+        // get_year and the extension get.
+        const char formats [] = "aAbBCdhHjmMnRStTwxXyY";
+#else
+        // formats that generate strings compatible with
+        // get_weekday, get_monthname, get_date, get_time
+        // and get_year.
+        const char formats [] = "aAbBxXyY";
+#endif
+
+        // get the "random" data type used to generate representation
+        data.format_ = formats [nlocales % (sizeof formats - 1)];
+
+        try {
+            const std::locale loc (data.locale_name_);
+
+            const std::time_put<char> &np =
+                std::use_facet<std::time_put<char> >(loc);
+
+            const std::time_get<char> &ng = 
+                std::use_facet<std::time_get<char> >(loc);
+
+            std::ios::iostate state = std::ios::goodbit;
+
+            nio.imbue (loc);
+
+            // put the time representation on the stream
+            nsb.pubsetp (data.ncs_, RW_COUNT_OF (data.ncs_));
+            *np.put (std::ostreambuf_iterator<char>(&nsb), nio, ' ',
+                     &data.time_, data.format_) = '\0';
+
+            rw_fatal (!nio.fail (), __FILE__, __LINE__,
+                      "time_put<char>::put(...) failed for locale(%#s)",
+                      data.locale_name_);
+
+            // read the data back out. this is what the thread
+            // is expected to do, and the result it should get.
+
+            nsb.pubsetg (data.ncs_, RW_COUNT_OF (data.ncs_));
+
+            const std::istreambuf_iterator<char> iter (&nsb);
+            const std::istreambuf_iterator<char> end;
+
+            std::memset (&data.time_, 0, sizeof data.time_);
+
+            switch (data.format_) {
+            case 'a':
+            case 'A':
+                ng.get_weekday (iter, end, nio, state, &data.time_);
+                break;
+            case 'b':
+            case 'B':
+            case 'h':
+                ng.get_monthname (iter, end, nio, state, &data.time_);
+                break;
+            case 'y':
+            case 'Y':
+                ng.get_year (iter, end, nio, state, &data.time_);
+                break;
+            case 'x':
+                ng.get_date (iter, end, nio, state, &data.time_);
+                break;
+            case 'X':
+                ng.get_time (iter, end, nio, state, &data.time_);
+                break;
+            default:
+
+#ifndef _RWSTD_NO_EXT_TIME_GET
+                ng.get (iter, end, nio, state, &data.time_, data.format_);
+#endif  // _RWSTD_NO_EXT_TIME_GET
+
+                break;
+            }
+
+            // we couldn't read the data back, so don't use this locale
+            if (state & std::ios_base::failbit)
+                continue;
+
+#ifndef _RWSTD_NO_WCHAR_T
+
+            const std::time_put<wchar_t> &wp =
+                std::use_facet<std::time_put<wchar_t> >(loc);
+
+            wio.imbue (loc);
+            wsb.pubsetp (data.wcs_, RW_COUNT_OF (data.wcs_));
+
+            *wp.put (std::ostreambuf_iterator<wchar_t>(&wsb),
+                     wio, L' ', &data.time_, data.format_) = L'\0';
+
+            rw_fatal (!wio.fail (), __FILE__, __LINE__,
+                      "time_put<wchar_t>::put(...) failed for locale(%#s)",
+                      data.locale_name_);
+
+#endif // _RWSTD_NO_WCHAR_T
+
+            if (rw_opt_shared_locale)
+                data.locale_ = loc;
+
+            nlocales += 1;
+
+        }
+        catch (...) {
+            rw_warn (!rw_opt_locales, 0, __LINE__,
+                     "failed to create locale(%#s)", name);
+        }
+
+        if (nlocales == maxinx || nlocales == std::size_t (rw_opt_nlocales))
+            break;
+    }
+
+    // avoid divide by zero in thread if there are no locales to test
+    rw_fatal (nlocales != 0, 0, __LINE__,
+              "failed to create one or more usable locales!");
+
+    rw_info (0, 0, 0,
+             "testing std::time_get<charT> with %d thread%{?}s%{;}, "
+             "%zu iteration%{?}s%{;} each, in %zu locales { %{ .*A@} }",
+             rw_opt_nthreads, 1 != rw_opt_nthreads,
+             rw_opt_nloops, 1 != rw_opt_nloops,
+             nlocales, int (nlocales), "%#s", locales);
+
+    rw_info (0, 0, 0, "exercising std::time_get<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 (rw_opt_nthreads), 0, thread_func, 0);
+
+    rw_error (result == 0, 0, __LINE__,
+              "rw_thread_pool(0, %d, 0, %{#f}, 0) failed",
+              rw_opt_nthreads, thread_func);
+
+#ifndef _RWSTD_NO_WCHAR_T
+
+    rw_info (0, 0, 0, "exercising std::time_get<wchar_t>");
+
+    test_char  = false;
+    test_wchar = true;
+
+    // start a pool of threads to exercise wstring thread safety
+    result =
+        rw_thread_pool (0, std::size_t (rw_opt_nthreads), 0, thread_func, 0);
+
+    rw_error (result == 0, 0, __LINE__,
+              "rw_thread_pool(0, %d, 0, %{#f}, 0) failed",
+              rw_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::time_get<char> and std::time_get<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 (rw_opt_nthreads), 0, thread_func, 0);
+
+    rw_error (result == 0, 0, __LINE__,
+              "rw_thread_pool(0, %d, 0, %{#f}, 0) failed",
+              rw_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
+    rw_opt_nthreads = rw_get_cpus ();
+    if (rw_opt_nthreads < 2)
+        rw_opt_nthreads = 2;
+
+#endif   // _RWSTD_REENTRANT
+
+    return rw_test (argc, argv, __FILE__,
+                    "lib.locale.time.get",
+                    "thread safety", run_test,
+                    "|-nloops#0 "       // must be non-negative
+                    "|-nthreads#0-* "   // must be in [0, MAX_THREADS]
+                    "|-nlocales#0 "     // arg must be non-negative
+                    "|-locales= "       // must be provided
+                    "|-shared-locale# ",
+                    &rw_opt_nloops,
+                    int (MAX_THREADS),
+                    &rw_opt_nthreads,
+                    &rw_opt_nlocales,
+                    &rw_opt_setlocales,
+                    &rw_opt_shared_locale);
+}

Propchange: incubator/stdcxx/trunk/tests/localization/22.locale.time.get.mt.cpp
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    svn:eol-style = native

Propchange: incubator/stdcxx/trunk/tests/localization/22.locale.time.get.mt.cpp
------------------------------------------------------------------------------
    svn:keywords = Id



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