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/* $Id: tstFile.cpp $ */
/** @file
* IPRT Testcase - File I/O.
*/
/*
* Copyright (C) 2006-2020 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include <iprt/test.h>
#include <iprt/file.h>
#include <iprt/errcore.h>
#include <iprt/string.h>
#include <iprt/stream.h>
/*********************************************************************************************************************************
* Global Variables *
*********************************************************************************************************************************/
static const char g_szTestStr[] = "Sausages and bacon for breakfast again!\n";
static char g_szTestStr2[] =
"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut "
"enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor "
"in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non "
"proident, sunt in culpa qui officia deserunt mollit anim id est laborum.\n"
"\n"
"Curabitur pretium tincidunt lacus. Nulla gravida orci a odio. Nullam varius, turpis et commodo pharetra, est eros bibendum "
"elit, nec luctus magna felis sollicitudin mauris. Integer in mauris eu nibh euismod gravida. Duis ac tellus et risus "
"vulputate vehicula. Donec lobortis risus a elit. Etiam tempor. Ut ullamcorper, ligula eu tempor congue, eros est euismod "
"turpis, id tincidunt sapien risus a quam. Maecenas fermentum consequat mi. Donec fermentum. Pellentesque malesuada nulla a mi. "
"Duis sapien sem, aliquet nec, commodo eget, consequat quis, neque. Aliquam faucibus, elit ut dictum aliquet, felis nisl "
"adipiscing sapien, sed malesuada diam lacus eget erat. Cras mollis scelerisque nunc. Nullam arcu. Aliquam consequat. Curabitur "
"augue lorem, dapibus quis, laoreet et, pretium ac, nisi. Aenean magna nisl, mollis quis, molestie eu, feugiat in, orci. In hac "
"habitasse platea dictumst.\n";
static void tstAppend(RTFILE hFile)
{
char achBuf[sizeof(g_szTestStr2) * 4];
/*
* Write some stuff and read it back.
*/
size_t const cbWrite1 = sizeof(g_szTestStr2) / 4;
RTTESTI_CHECK_RC_RETV(RTFileWrite(hFile, g_szTestStr2, sizeof(g_szTestStr2) - 1, NULL), VINF_SUCCESS);
size_t const offWrite2 = cbWrite1;
size_t const cbWrite2 = sizeof(g_szTestStr2) / 2;
RTTESTI_CHECK_RC_RETV(RTFileSeek(hFile, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTFileWrite(hFile, &g_szTestStr2[offWrite2], cbWrite2, NULL), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTFileSeek(hFile, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTFileRead(hFile, achBuf, cbWrite1 + cbWrite2, NULL), VINF_SUCCESS);
if (memcmp(achBuf, g_szTestStr2, cbWrite1 + cbWrite2) != 0)
RTTestIFailed("Read back #1 failed (%#zx + %#zx)", cbWrite1, cbWrite2);
#if 1 //ndef RT_OS_WINDOWS
/*
* Truncate the file and write some more. This is problematic on windows,
* we currently have a questionable hack in place to make this work.
*/
RTTESTI_CHECK_RC_RETV(RTFileSetSize(hFile, 0), VINF_SUCCESS);
size_t const offWrite3 = cbWrite1 + cbWrite2;
size_t const cbWrite3 = sizeof(g_szTestStr2) - 1 - offWrite3;
RTTESTI_CHECK_RC_RETV(RTFileSeek(hFile, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTFileWrite(hFile, &g_szTestStr2[offWrite3], cbWrite3, NULL), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTFileSeek(hFile, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTFileRead(hFile, achBuf, cbWrite3, NULL), VINF_SUCCESS);
if (memcmp(achBuf, &g_szTestStr2[offWrite3], cbWrite3) != 0)
RTTestIFailed("Read back #2 failed (%#zx)", cbWrite3);
#endif
}
static void tstBasics(RTFILE hFile)
{
RTFOFF cbMax = -2;
int rc = RTFileQueryMaxSizeEx(hFile, &cbMax);
if (rc != VERR_NOT_IMPLEMENTED)
{
if (rc != VINF_SUCCESS)
RTTestIFailed("RTFileQueryMaxSizeEx failed: %Rrc", rc);
else
{
RTTESTI_CHECK_MSG(cbMax > 0, ("cbMax=%RTfoff", cbMax));
RTTESTI_CHECK_MSG(cbMax == RTFileGetMaxSize(hFile),
("cbMax=%RTfoff, RTFileGetMaxSize->%RTfoff", cbMax, RTFileGetMaxSize(hFile)));
}
}
/* grow file beyond 2G */
rc = RTFileSetSize(hFile, _2G + _1M);
if (RT_FAILURE(rc))
RTTestIFailed("Failed to grow file #1 to 2.001GB. rc=%Rrc", rc);
else
{
uint64_t cb;
RTTESTI_CHECK_RC(RTFileQuerySize(hFile, &cb), VINF_SUCCESS);
RTTESTI_CHECK_MSG(cb == _2G + _1M, ("RTFileQuerySize return %RX64 bytes, expected %RX64.", cb, _2G + _1M));
/*
* Try some writes at the beginning of the file.
*/
uint64_t offFile = RTFileTell(hFile);
RTTESTI_CHECK_MSG(offFile == 0, ("RTFileTell -> %#RX64, expected 0 (#1)", offFile));
size_t cbWritten = 0;
while (cbWritten < sizeof(g_szTestStr))
{
size_t cbWrittenPart;
rc = RTFileWrite(hFile, &g_szTestStr[cbWritten], sizeof(g_szTestStr) - cbWritten, &cbWrittenPart);
if (RT_FAILURE(rc))
break;
cbWritten += cbWrittenPart;
}
if (RT_FAILURE(rc))
RTTestIFailed("Failed to write to file #1 at offset 0. rc=%Rrc\n", rc);
else
{
/* check that it was written correctly. */
rc = RTFileSeek(hFile, 0, RTFILE_SEEK_BEGIN, NULL);
if (RT_FAILURE(rc))
RTTestIFailed("Failed to seek offset 0 in file #1. rc=%Rrc\n", rc);
else
{
char szReadBuf[sizeof(g_szTestStr)];
size_t cbRead = 0;
while (cbRead < sizeof(g_szTestStr))
{
size_t cbReadPart;
rc = RTFileRead(hFile, &szReadBuf[cbRead], sizeof(g_szTestStr) - cbRead, &cbReadPart);
if (RT_FAILURE(rc))
break;
cbRead += cbReadPart;
}
if (RT_FAILURE(rc))
RTTestIFailed("Failed to read from file #1 at offset 0. rc=%Rrc\n", rc);
else
{
if (!memcmp(szReadBuf, g_szTestStr, sizeof(g_szTestStr)))
RTPrintf("tstFile: head write ok\n");
else
RTTestIFailed("Data read from file #1 at offset 0 differs from what we wrote there.\n");
}
}
}
/*
* Try some writes at the end of the file.
*/
rc = RTFileSeek(hFile, _2G + _1M, RTFILE_SEEK_BEGIN, NULL);
if (RT_FAILURE(rc))
RTTestIFailed("Failed to seek to _2G + _1M in file #1. rc=%Rrc\n", rc);
else
{
offFile = RTFileTell(hFile);
if (offFile != _2G + _1M)
RTTestIFailed("RTFileTell -> %#llx, expected %#llx (#2)\n", offFile, _2G + _1M);
else
{
cbWritten = 0;
while (cbWritten < sizeof(g_szTestStr))
{
size_t cbWrittenPart;
rc = RTFileWrite(hFile, &g_szTestStr[cbWritten], sizeof(g_szTestStr) - cbWritten, &cbWrittenPart);
if (RT_FAILURE(rc))
break;
cbWritten += cbWrittenPart;
}
if (RT_FAILURE(rc))
RTTestIFailed("Failed to write to file #1 at offset 2G + 1M. rc=%Rrc\n", rc);
else
{
rc = RTFileSeek(hFile, offFile, RTFILE_SEEK_BEGIN, NULL);
if (RT_FAILURE(rc))
RTTestIFailed("Failed to seek offset %RX64 in file #1. rc=%Rrc\n", offFile, rc);
else
{
char szReadBuf[sizeof(g_szTestStr)];
size_t cbRead = 0;
while (cbRead < sizeof(g_szTestStr))
{
size_t cbReadPart;
rc = RTFileRead(hFile, &szReadBuf[cbRead], sizeof(g_szTestStr) - cbRead, &cbReadPart);
if (RT_FAILURE(rc))
break;
cbRead += cbReadPart;
}
if (RT_FAILURE(rc))
RTTestIFailed("Failed to read from file #1 at offset 2G + 1M. rc=%Rrc\n", rc);
else
{
if (!memcmp(szReadBuf, g_szTestStr, sizeof(g_szTestStr)))
RTPrintf("tstFile: tail write ok\n");
else
RTTestIFailed("Data read from file #1 at offset 2G + 1M differs from what we wrote there.\n");
}
}
}
}
}
/*
* Some general seeking around.
*/
rc = RTFileSeek(hFile, _2G + 1, RTFILE_SEEK_BEGIN, NULL);
if (RT_FAILURE(rc))
RTTestIFailed("Failed to seek to _2G + 1 in file #1. rc=%Rrc\n", rc);
else
{
offFile = RTFileTell(hFile);
if (offFile != _2G + 1)
RTTestIFailed("RTFileTell -> %#llx, expected %#llx (#3)\n", offFile, _2G + 1);
}
/* seek end */
rc = RTFileSeek(hFile, 0, RTFILE_SEEK_END, NULL);
if (RT_FAILURE(rc))
RTTestIFailed("Failed to seek to end of file #1. rc=%Rrc\n", rc);
else
{
offFile = RTFileTell(hFile);
if (offFile != _2G + _1M + sizeof(g_szTestStr)) /* assuming tail write was ok. */
RTTestIFailed("RTFileTell -> %#RX64, expected %#RX64 (#4)\n", offFile, _2G + _1M + sizeof(g_szTestStr));
}
/* seek start */
rc = RTFileSeek(hFile, 0, RTFILE_SEEK_BEGIN, NULL);
if (RT_FAILURE(rc))
RTTestIFailed("Failed to seek to end of file #1. rc=%Rrc\n", rc);
else
{
offFile = RTFileTell(hFile);
if (offFile != 0)
RTTestIFailed("RTFileTell -> %#llx, expected 0 (#5)\n", offFile);
}
}
}
int main()
{
RTTEST hTest;
RTEXITCODE rcExit = RTTestInitAndCreate("tstRTFile", &hTest);
if (rcExit != RTEXITCODE_SUCCESS)
return rcExit;
RTTestBanner(hTest);
/*
* Some basic tests.
*/
RTTestSub(hTest, "Basics");
int rc = -1;
RTFILE hFile = NIL_RTFILE;
RTTESTI_CHECK_RC(rc = RTFileOpen(&hFile, "tstFile#1.tst", RTFILE_O_READWRITE | RTFILE_O_CREATE_REPLACE | RTFILE_O_DENY_NONE),
VINF_SUCCESS);
if (RT_SUCCESS(rc))
{
tstBasics(hFile);
RTTESTI_CHECK_RC(RTFileClose(hFile), VINF_SUCCESS);
RTTESTI_CHECK_RC(RTFileDelete("tstFile#1.tst"), VINF_SUCCESS);
}
/*
* Test appending & truncation.
*/
RTTestSub(hTest, "Append");
hFile = NIL_RTFILE;
RTTESTI_CHECK_RC(rc = RTFileOpen(&hFile, "tstFile#2.tst",
RTFILE_O_READWRITE | RTFILE_O_CREATE_REPLACE | RTFILE_O_DENY_NONE | RTFILE_O_APPEND),
VINF_SUCCESS);
if (RT_SUCCESS(rc))
{
tstAppend(hFile);
RTTESTI_CHECK_RC(RTFileClose(hFile), VINF_SUCCESS);
RTTESTI_CHECK_RC(RTFileDelete("tstFile#2.tst"), VINF_SUCCESS);
}
/*
* Done.
*/
return RTTestSummaryAndDestroy(hTest);
}
|
