/* $Id: tstFile.cpp $ */ /** @file * IPRT Testcase - File I/O. */ /* * Copyright (C) 2006-2022 Oracle and/or its affiliates. * * This file is part of VirtualBox base platform packages, as * available from https://www.virtualbox.org. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation, in version 3 of the * License. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see . * * The contents of this file may alternatively be used under the terms * of the Common Development and Distribution License Version 1.0 * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included * in the VirtualBox 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. * * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 */ /********************************************************************************************************************************* * Header Files * *********************************************************************************************************************************/ #include #include #include #include #include #include #include /********************************************************************************************************************************* * 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"; /** * Structure holding queried file system properties we're performing our tests on. */ typedef struct FsProps { RTFOFF cbTotal; RTFOFF cbFree; uint32_t cbBlock; uint32_t cbSector; } FsProps; /** Queried file system properties we're performing our tests on. */ static FsProps s_FsProps; 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))); } } uint64_t cbFileSize = _2G + RTRandU32Ex(_1K, _1M); /* Try growing file beyond 2G by default. */ if ((uint64_t)s_FsProps.cbFree <= cbFileSize) { RTTestIPrintf(RTTESTLVL_ALWAYS, "Warning: Free disk space less than testcase file size (%RTfoff vs. %RU64), limiting\n", s_FsProps.cbFree, cbFileSize); cbFileSize = s_FsProps.cbFree - _1M; /* Leave a bit of space on the fs. */ } /** @todo Also check and clamp for fs max file size limits? */ RTTESTI_CHECK_MSG_RETV(cbFileSize, ("No space left on file system (disk full)")); rc = RTFileSetSize(hFile, cbFileSize); if (RT_FAILURE(rc)) RTTestIFailed("Failed to grow file #1 to %RU64. rc=%Rrc", cbFileSize, rc); else { uint64_t cb; RTTESTI_CHECK_RC(RTFileQuerySize(hFile, &cb), VINF_SUCCESS); RTTESTI_CHECK_MSG(cb == cbFileSize, ("RTFileQuerySize return %RX64 bytes, expected %RX64.", cb, cbFileSize)); /* * 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, cbFileSize, RTFILE_SEEK_BEGIN, NULL); if (RT_FAILURE(rc)) RTTestIFailed("Failed to seek to %RU64 in file #1. rc=%Rrc\n", cbFileSize, rc); else { offFile = RTFileTell(hFile); if (offFile != cbFileSize) RTTestIFailed("RTFileTell -> %#llx, expected %#llx (#2)\n", offFile, cbFileSize); 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 %RU64. rc=%Rrc\n", cbFileSize, 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 %RU64. rc=%Rrc\n", cbFileSize, 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 %RU64 differs from what we wrote there.\n", cbFileSize); } } } } } /* * Some general seeking around. */ RTFOFF offSeek = RTRandS64Ex(0, cbFileSize); rc = RTFileSeek(hFile, offSeek, RTFILE_SEEK_BEGIN, NULL); if (RT_FAILURE(rc)) RTTestIFailed("Failed to seek to %RTfoff in file #1. rc=%Rrc\n", offSeek, rc); else { offFile = RTFileTell(hFile); if (offFile != (uint64_t)offSeek) RTTestIFailed("RTFileTell -> %#RTfoff, expected %RTfoff (#3)\n", offFile, offSeek); } /* 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 != cbFileSize + sizeof(g_szTestStr)) /* assuming tail write was ok. */ RTTestIFailed("RTFileTell -> %RTfoff, expected %#RX64 (#4)\n", offFile, cbFileSize + 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 -> %RTfoff, expected 0 (#5)\n", offFile); } } } int main() { RTTEST hTest; RTEXITCODE rcExit = RTTestInitAndCreate("tstRTFile", &hTest); if (rcExit != RTEXITCODE_SUCCESS) return rcExit; RTTestBanner(hTest); /* * Query file system sizes first. * This is needed beforehand, so that we don't perform tests which cannot succeed because of known limitations * (too little space, file system maximum file size restrictions, ++). */ char szCWD[RTPATH_MAX]; int rc = RTPathGetCurrent(szCWD, sizeof(szCWD)); RTTESTI_CHECK_MSG(RT_SUCCESS(rc), ("Unable to query current directory, rc=%Rrc", rc)); rc = RTFsQuerySizes(szCWD, &s_FsProps.cbTotal, &s_FsProps.cbFree, &s_FsProps.cbBlock, &s_FsProps.cbSector); RTTESTI_CHECK_MSG(RT_SUCCESS(rc), ("Unable to query file system sizes of '%s', rc=%Rrc", szCWD, rc)); /* * Some basic tests. */ RTTestSub(hTest, "Basics"); 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); }