Function TEST

autotest/cpp/testvirtualmem.cpp:215–262

}

TEST(testvirtualmem, test)
{
    if (getenv("SKIP_TESTVIRTUALMEM") != nullptr)
    {
        fprintf(stderr, "Skipping testvitualmem\n");  // ok
        return;
    }

    /*printf("test_huge_mapping\n");
    test_huge_mapping();*/

    printf("Physical memory : " CPL_FRMT_GIB " bytes\n", CPLGetPhysicalRAM());

    if (CPLIsVirtualMemFileMapAvailable())
    {
        printf("Testing CPLVirtualMemFileMapNew()\n");
        VSILFILE *fp = VSIFOpenL(GCORE_DATA_DIR "byte.tif", "rb");
        ASSERT_TRUE(fp != nullptr);
        VSIFSeekL(fp, 0, SEEK_END);
        size_t nSize = (size_t)VSIFTellL(fp);
        VSIFSeekL(fp, 0, SEEK_SET);
        void *pRefBuf = CPLMalloc(nSize);
        VSIFReadL(pRefBuf, 1, nSize, fp);
        CPLVirtualMem *psMem = CPLVirtualMemFileMapNew(
            fp, 0, nSize, VIRTUALMEM_READONLY, nullptr, nullptr);
        ASSERT_TRUE(psMem != nullptr);
        void *pMemBuf = CPLVirtualMemGetAddr(psMem);
        ASSERT_TRUE(memcmp(pRefBuf, pMemBuf, nSize) == 0);
        CPLFree(pRefBuf);
        CPLVirtualMemFree(psMem);
        VSIFCloseL(fp);
    }

    auto ctxt = CPLVirtualMemNew(3 * MINIMUM_PAGE_SIZE, MINIMUM_PAGE_SIZE,
                                 MINIMUM_PAGE_SIZE, FALSE, VIRTUALMEM_READONLY,
                                 test_two_pages_cbk, nullptr, nullptr, nullptr);
    if (ctxt)
    {
        test_two_pages(ctxt);
        test_raw_auto("EHDR", TRUE);
        test_raw_auto("EHDR", FALSE);
        test_raw_auto("GTIFF", TRUE);
        test_raw_auto("GTIFF", FALSE);
    }

    CPLVirtualMemManagerTerminate();
    GDALDestroyDriverManager();
}

}  // namespace