Line data    Source code

       1             : /******************************************************************************
       2             :  * $Id$
       3             :  *
       4             :  * Project:  GDAL Core
       5             :  * Purpose:  Test fix for https://github.com/OSGeo/gdal/issues/1488 (concurrency
       6             :  *issue with overviews) Author:   Even Rouault, <even dot rouault at spatialys
       7             :  *dot com>
       8             :  *
       9             :  ******************************************************************************
      10             :  * Copyright (c) 2019, Even Rouault <even dot rouault at spatialys dot com>
      11             :  * Copyright (c) 2019, Thomas Bonfort <thomas.bonfort at gmail.com>
      12             :  *
      13             :  * Permission is hereby granted, free of charge, to any person obtaining a
      14             :  * copy of this software and associated documentation files (the "Software"),
      15             :  * to deal in the Software without restriction, including without limitation
      16             :  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      17             :  * and/or sell copies of the Software, and to permit persons to whom the
      18             :  * Software is furnished to do so, subject to the following conditions:
      19             :  *
      20             :  * The above copyright notice and this permission notice shall be included
      21             :  * in all copies or substantial portions of the Software.
      22             :  *
      23             :  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
      24             :  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      25             :  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
      26             :  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      27             :  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
      28             :  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
      29             :  * DEALINGS IN THE SOFTWARE.
      30             :  ****************************************************************************/
      31             : 
      32             : #include "gdal.h"
      33             : #include "cpl_multiproc.h"
      34             : 
      35             : #include "test_data.h"
      36             : 
      37             : #include "gtest_include.h"
      38             : 
      39             : namespace
      40             : {
      41             : 
      42             : // ---------------------------------------------------------------------------
      43             : 
      44             : static GDALDriverH hTIFFDrv = nullptr;
      45             : static volatile int bThread1Finished = FALSE;
      46             : static volatile int bThread2Finished = FALSE;
      47             : static volatile int bContinue = TRUE;
      48             : 
      49             : const char *szSrcDataset = TUT_ROOT_DATA_DIR "/bug1488.tif";
      50             : 
      51             : static int CPL_STDCALL myProgress(double, const char *, void *);
      52             : 
      53          17 : static int CPL_STDCALL myProgress(double, const char *, void *)
      54             : {
      55          17 :     return bContinue;
      56             : }
      57             : 
      58             : static void CPL_STDCALL myErrorHandler(CPLErr, CPLErrorNum, const char *msg);
      59             : 
      60           2 : static void CPL_STDCALL myErrorHandler(CPLErr, CPLErrorNum errorNum,
      61             :                                        const char *msg)
      62             : {
      63           2 :     if (errorNum != CPLE_UserInterrupt &&
      64           0 :         strstr(msg, "User terminated") == nullptr)
      65             :     {
      66           0 :         fprintf(stderr, "An error occurred: %s\n", msg);
      67           0 :         fprintf(stderr, "Likely a threading issue !\n");
      68           0 :         ASSERT_TRUE(false);
      69             :     }
      70             : }
      71             : 
      72           1 : static void worker_thread1(void *)
      73             : {
      74             : 
      75           1 :     GDALDatasetH hDataset = GDALOpen("/vsimem/thread1.tif", GA_Update);
      76           1 :     ASSERT_TRUE(hDataset != nullptr);
      77             : 
      78           1 :     int levels[1] = {2};
      79           1 :     int bands[3] = {1, 2, 3};
      80           1 :     CPLErr eErr = GDALBuildOverviews(hDataset, "AVERAGE", 1, levels, 3, bands,
      81             :                                      myProgress, nullptr);
      82             :     (void)eErr;
      83           1 :     GDALClose(hDataset);
      84           1 :     VSIUnlink("/vsimem/thread1.tif");
      85           1 :     bThread1Finished = TRUE;
      86             : }
      87             : 
      88           1 : static void worker_thread2(void *)
      89             : {
      90             : 
      91           1 :     GDALDatasetH hSrc = GDALOpen(szSrcDataset, GA_ReadOnly);
      92           1 :     ASSERT_TRUE(hSrc != nullptr);
      93           1 :     const char *const tops[] = {"TILED=YES", "COMPRESS=WEBP", nullptr};
      94             :     GDALDatasetH hDataset =
      95           1 :         GDALCreateCopy(GDALGetDriverByName("GTiff"), "/vsimem/thread2.tif",
      96             :                        hSrc, TRUE, tops, myProgress, nullptr);
      97           1 :     GDALClose(hDataset);
      98           1 :     GDALClose(hSrc);
      99           1 :     VSIUnlink("/vsimem/thread2.tif");
     100           1 :     bThread2Finished = TRUE;
     101             : }
     102             : 
     103           4 : TEST(bug1488, test)
     104             : {
     105           1 :     GDALAllRegister();
     106             : 
     107           1 :     hTIFFDrv = GDALGetDriverByName("GTiff");
     108           1 :     if (!hTIFFDrv)
     109             :     {
     110           0 :         GTEST_SKIP() << "GTIFF driver missing";
     111             :         return;
     112             :     }
     113             :     const char *pszCO =
     114           1 :         GDALGetMetadataItem(hTIFFDrv, GDAL_DMD_CREATIONOPTIONLIST, nullptr);
     115           1 :     if (pszCO == nullptr || strstr(pszCO, "WEBP") == nullptr)
     116             :     {
     117           0 :         GTEST_SKIP() << "WEBP driver missing";
     118             :         return;
     119             :     }
     120             : 
     121           1 :     GDALSetCacheMax(30 * 1000 * 1000);
     122             : 
     123           1 :     CPLSetErrorHandler(myErrorHandler);
     124             : 
     125           1 :     VSISync(szSrcDataset, "/vsimem/thread1.tif", nullptr, nullptr, nullptr,
     126             :             nullptr);
     127             : 
     128           1 :     CPLJoinableThread *t1 = CPLCreateJoinableThread(worker_thread1, nullptr);
     129           1 :     CPLJoinableThread *t2 = CPLCreateJoinableThread(worker_thread2, nullptr);
     130           1 :     int nCountSeconds = 0;
     131           4 :     while (!bThread1Finished && !bThread2Finished)
     132             :     {
     133           3 :         CPLSleep(1);
     134           3 :         nCountSeconds++;
     135           3 :         if (nCountSeconds == 2)
     136             :         {
     137             :             /* After 2 seconds without errors, assume no threading issue, and */
     138             :             /* early exit */
     139           1 :             bContinue = FALSE;
     140             :         }
     141             :     }
     142           1 :     CPLJoinThread(t1);
     143           1 :     CPLJoinThread(t2);
     144             : }
     145             : 
     146             : }  // namespace