Function test2

autotest/cpp/testblockcachewrite.cpp:118–152

}

static void test2()
{
    printf("Start test2\n");
    printf("main thread %p\n", (void *)CPLGetPID());

    CPLJoinableThread *hThread;

    CPLSetConfigOption("GDAL_RB_INTERNALIZE_SLEEP_AFTER_DETACH_BEFORE_WRITE",
                       "0.5");
    GDALSetCacheMax(1000 * 1000);

    auto poDS = GetGDALDriverManager()->GetDriverByName("GTiff")->Create(
        "/vsimem/foo.tif", 1, 1, 2, GDT_Byte, nullptr);
    poDS->GetRasterBand(1)->Fill(0);
    poDS->GetRasterBand(2)->Fill(0);
    poDS->FlushCache(false);
    GDALSetCacheMax(0);

    poDS->GetRasterBand(1)->Fill(1);
    hThread = CPLCreateJoinableThread(thread_func2, nullptr);
    CPLSleep(0.2);

    GByte c = 0;
    CPL_IGNORE_RET_VAL(poDS->GetRasterBand(1)->RasterIO(
        GF_Read, 0, 0, 1, 1, &c, 1, 1, GDT_Byte, 0, 0, nullptr));
    printf("%d\n", c);
    ASSERT_EQ(c, 1);
    CPLJoinThread(hThread);

    CPLSetConfigOption("GDAL_RB_INTERNALIZE_SLEEP_AFTER_DETACH_BEFORE_WRITE",
                       nullptr);
    delete poDS;
    VSIUnlink("/vsimem/foo.tif");
    printf("End test2\n");
}

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