tstFile.cpp revision e64031e20c39650a7bc902a3e1aba613b9415dee
/* $Id$ */
/** @file
* IPRT Testcase - File I/O.
*/
/*
* Copyright (C) 2006-2007 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/file.h>
#include <iprt/err.h>
#include <iprt/string.h>
#include <iprt/stream.h>
#include <iprt/initterm.h>
int main()
{
int cErrors = 0;
RTPrintf("tstFile: TESTING\n");
RTR3Init();
RTFILE File;
int rc = RTFileOpen(&File, "tstFile#1.tst", RTFILE_O_READWRITE | RTFILE_O_CREATE_REPLACE | RTFILE_O_DENY_NONE);
if (RT_FAILURE(rc))
{
RTPrintf("tstFile: FATAL ERROR - Failed to open file #1. rc=%Rrc\n", rc);
return 1;
}
RTFOFF cbMax = -2;
rc = RTFileGetMaxSizeEx(File, &cbMax);
if (RT_FAILURE(rc))
{
RTPrintf("tstFile: RTFileGetMaxSizeEx failed: %Rrc\n", rc);
cErrors++;
}
else if (cbMax <= 0)
{
RTPrintf("tstFile: RTFileGetMaxSizeEx failed: cbMax=%RTfoff\n", cbMax);
cErrors++;
}
else if (RTFileGetMaxSize(File) != cbMax)
{
RTPrintf("tstFile: RTFileGetMaxSize failed; returns %RTfoff instead of %RTfoff\n", RTFileGetMaxSize(File), cbMax);
cErrors++;
}
else
RTPrintf("Maximum file size is %RTfoff bytes.\n", cbMax);
/* grow file beyond 2G */
rc = RTFileSetSize(File, _2G + _1M);
if (RT_FAILURE(rc))
{
RTPrintf("Failed to grow file #1 to 2.001GB. rc=%Rrc\n", rc);
cErrors++;
}
else
{
uint64_t cb;
rc = RTFileGetSize(File, &cb);
if (RT_FAILURE(rc))
{
RTPrintf("Failed to get file size of #1. rc=%Rrc\n", rc);
cErrors++;
}
else if (cb != _2G + _1M)
{
RTPrintf("RTFileGetSize return %RX64 bytes, expected %RX64.\n", cb, _2G + _1M);
cErrors++;
}
else
RTPrintf("tstFile: cb=%RX64\n", cb);
/*
* Try some writes at the beginning of the file.
*/
uint64_t offFile = RTFileTell(File);
if (offFile != 0)
{
RTPrintf("RTFileTell -> %#RX64, expected 0 (#1)\n", offFile);
cErrors++;
}
static const char szTestBuf[] = "Sausages and bacon for breakfast again!";
size_t cbWritten = 0;
while (cbWritten < sizeof(szTestBuf))
{
size_t cbWrittenPart;
rc = RTFileWrite(File, &szTestBuf[cbWritten], sizeof(szTestBuf) - cbWritten, &cbWrittenPart);
if (RT_FAILURE(rc))
break;
cbWritten += cbWrittenPart;
}
if (RT_FAILURE(rc))
{
RTPrintf("Failed to write to file #1 at offset 0. rc=%Rrc\n", rc);
cErrors++;
}
else
{
/* check that it was written correctly. */
rc = RTFileSeek(File, 0, RTFILE_SEEK_BEGIN, NULL);
if (RT_FAILURE(rc))
{
RTPrintf("Failed to seek offset 0 in file #1. rc=%Rrc\n", rc);
cErrors++;
}
else
{
char szReadBuf[sizeof(szTestBuf)];
size_t cbRead = 0;
while (cbRead < sizeof(szTestBuf))
{
size_t cbReadPart;
rc = RTFileRead(File, &szReadBuf[cbRead], sizeof(szTestBuf) - cbRead, &cbReadPart);
if (RT_FAILURE(rc))
break;
cbRead += cbReadPart;
}
if (RT_FAILURE(rc))
{
RTPrintf("Failed to read from file #1 at offset 0. rc=%Rrc\n", rc);
cErrors++;
}
else
{
if (!memcmp(szReadBuf, szTestBuf, sizeof(szTestBuf)))
RTPrintf("tstFile: head write ok\n");
else
{
RTPrintf("Data read from file #1 at offset 0 differs from what we wrote there.\n");
cErrors++;
}
}
}
}
/*
* Try some writes at the end of the file.
*/
rc = RTFileSeek(File, _2G + _1M, RTFILE_SEEK_BEGIN, NULL);
if (RT_FAILURE(rc))
{
RTPrintf("Failed to seek to _2G + _1M in file #1. rc=%Rrc\n", rc);
cErrors++;
}
else
{
offFile = RTFileTell(File);
if (offFile != _2G + _1M)
{
RTPrintf("RTFileTell -> %#llx, expected %#llx (#2)\n", offFile, _2G + _1M);
cErrors++;
}
else
{
cbWritten = 0;
while (cbWritten < sizeof(szTestBuf))
{
size_t cbWrittenPart;
rc = RTFileWrite(File, &szTestBuf[cbWritten], sizeof(szTestBuf) - cbWritten, &cbWrittenPart);
if (RT_FAILURE(rc))
break;
cbWritten += cbWrittenPart;
}
if (RT_FAILURE(rc))
{
RTPrintf("Failed to write to file #1 at offset 2G + 1M. rc=%Rrc\n", rc);
cErrors++;
}
else
{
rc = RTFileSeek(File, offFile, RTFILE_SEEK_BEGIN, NULL);
if (RT_FAILURE(rc))
{
RTPrintf("Failed to seek offset %RX64 in file #1. rc=%Rrc\n", offFile, rc);
cErrors++;
}
else
{
char szReadBuf[sizeof(szTestBuf)];
size_t cbRead = 0;
while (cbRead < sizeof(szTestBuf))
{
size_t cbReadPart;
rc = RTFileRead(File, &szReadBuf[cbRead], sizeof(szTestBuf) - cbRead, &cbReadPart);
if (RT_FAILURE(rc))
break;
cbRead += cbReadPart;
}
if (RT_FAILURE(rc))
{
RTPrintf("Failed to read from file #1 at offset 2G + 1M. rc=%Rrc\n", rc);
cErrors++;
}
else
{
if (!memcmp(szReadBuf, szTestBuf, sizeof(szTestBuf)))
RTPrintf("tstFile: tail write ok\n");
else
{
RTPrintf("Data read from file #1 at offset 2G + 1M differs from what we wrote there.\n");
cErrors++;
}
}
}
}
}
}
/*
* Some general seeking around.
*/
rc = RTFileSeek(File, _2G + 1, RTFILE_SEEK_BEGIN, NULL);
if (RT_FAILURE(rc))
{
RTPrintf("Failed to seek to _2G + 1 in file #1. rc=%Rrc\n", rc);
cErrors++;
}
else
{
offFile = RTFileTell(File);
if (offFile != _2G + 1)
{
RTPrintf("RTFileTell -> %#llx, expected %#llx (#3)\n", offFile, _2G + 1);
cErrors++;
}
}
/* seek end */
rc = RTFileSeek(File, 0, RTFILE_SEEK_END, NULL);
if (RT_FAILURE(rc))
{
RTPrintf("Failed to seek to end of file #1. rc=%Rrc\n", rc);
cErrors++;
}
else
{
offFile = RTFileTell(File);
if (offFile != _2G + _1M + sizeof(szTestBuf)) /* assuming tail write was ok. */
{
RTPrintf("RTFileTell -> %#RX64, expected %#RX64 (#4)\n", offFile, _2G + _1M + sizeof(szTestBuf));
cErrors++;
}
}
/* seek start */
rc = RTFileSeek(File, 0, RTFILE_SEEK_BEGIN, NULL);
if (RT_FAILURE(rc))
{
RTPrintf("Failed to seek to end of file #1. rc=%Rrc\n", rc);
cErrors++;
}
else
{
offFile = RTFileTell(File);
if (offFile != 0)
{
RTPrintf("RTFileTell -> %#llx, expected 0 (#5)\n", offFile);
cErrors++;
}
}
}
/*
* Cleanup.
*/
rc = RTFileClose(File);
if (RT_FAILURE(rc))
{
RTPrintf("Failed to close file #1. rc=%Rrc\n", rc);
cErrors++;
}
rc = RTFileDelete("tstFile#1.tst");
if (RT_FAILURE(rc))
{
RTPrintf("Failed to delete file #1. rc=%Rrc\n", rc);
cErrors++;
}
/*
* Summary
*/
if (cErrors == 0)
RTPrintf("tstFile: SUCCESS\n");
else
RTPrintf("tstFile: FAILURE - %d errors\n", cErrors);
return !!cErrors;
}