276 lines
8.0 KiB
C
276 lines
8.0 KiB
C
/******************************************************************************
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* fallocate01.c
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* Mon Dec 24 2007
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* Copyright (c) International Business Machines Corp., 2007
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* Emali : sharyathi@in.ibm.com
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******************************************************************************/
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/***************************************************************************
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Library General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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***************************************************************************/
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/*****************************************************************************
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*
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* OS Test - International Business Machines Corp. 2007.
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*
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* TEST IDENTIFIER : fallocate01
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*
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* EXECUTED BY : anyone
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*
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* TEST TITLE : Basic test for fallocate()
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*
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* TEST CASE TOTAL : 2
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*
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* CPU ARCHITECTURES : PPC,X86, X86_64
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*
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* AUTHOR : Sharyathi Nagesh
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*
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* CO-PILOT :
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*
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* DATE STARTED : 24/12/2007
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*
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* TEST CASES
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* (Working of fallocate under 2 modes)
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* 1) DEFAULT 2)FALLOC_FL_KEEP_SIZE
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*
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* INPUT SPECIFICATIONS
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* No input needs to be specified
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* fallocate() in puts are generated randomly
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*
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* OUTPUT SPECIFICATIONS
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* Output describing whether test cases passed or failed.
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*
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* ENVIRONMENTAL NEEDS
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* Test Needs to be executed on file system supporting ext4
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* LTP {TMP} Needs to be set to such a folder
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*
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* SPECIAL PROCEDURAL REQUIREMENTS
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* None
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*
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* DETAILED DESCRIPTION
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* This is a test case for fallocate() system call.
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* This test suite tests basic working of fallocate under different modes
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* It trys to fallocate memory blocks and write into that block
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*
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* Total 2 Test Cases :-
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* (1) Test Case for DEFAULT MODE
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* (2) Test Case for FALLOC_FL_KEEP_SIZE
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*
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* Setup:
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* Setup file on which fallocate is to be called
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* Set up 2 files for each mode
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*
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* Test:
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* Loop if the proper options are given.
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* Execute system call
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* Check return code, if system call did fail
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* lseek to some random location with in allocate block
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* write data into the locattion Report if any error encountered
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* PASS the test otherwise
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*
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* Cleanup:
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* Cleanup the temporary folder
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*
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*************************************************************************/
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#define _GNU_SOURCE
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#include <stdio.h>
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#include <stdlib.h>
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#include <endian.h>
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#include <errno.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <sys/syscall.h>
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#include <unistd.h>
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#include <inttypes.h>
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#include <sys/utsname.h>
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#include "test.h"
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#include "safe_macros.h"
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#include "lapi/fallocate.h"
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#include "lapi/fcntl.h"
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#define BLOCKS_WRITTEN 12
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void get_blocksize(int);
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void populate_files(int fd);
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void runtest(int, int, loff_t);
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char *TCID = "fallocate01";
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char fname_mode1[255], fname_mode2[255]; /* Files used for testing */
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int fd_mode1, fd_mode2;
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int TST_TOTAL = 2;
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loff_t block_size;
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int buf_size;
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/******************************************************************************
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* Performs all one time clean up for this test on successful
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* completion, premature exit or failure. Closes all temporary
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* files, removes all temporary directories exits the test with
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* appropriate return code by calling tst_exit() function.
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******************************************************************************/
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void cleanup(void)
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{
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if (close(fd_mode1) == -1)
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tst_resm(TWARN | TERRNO, "close(%s) failed", fname_mode1);
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if (close(fd_mode2) == -1)
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tst_resm(TWARN | TERRNO, "close(%s) failed", fname_mode2);
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tst_rmdir();
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}
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/*****************************************************************************
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* Performs all one time setup for this test. This function is
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* used to create temporary dirs and temporary files
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* that may be used in the course of this test
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******************************************************************************/
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void setup(void)
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{
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/* Create temporary directories */
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TEST_PAUSE;
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tst_tmpdir();
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sprintf(fname_mode1, "tfile_mode1_%d", getpid());
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fd_mode1 = SAFE_OPEN(cleanup, fname_mode1, O_RDWR | O_CREAT, 0700);
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get_blocksize(fd_mode1);
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populate_files(fd_mode1);
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sprintf(fname_mode2, "tfile_mode2_%d", getpid());
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fd_mode2 = SAFE_OPEN(cleanup, fname_mode2, O_RDWR | O_CREAT, 0700);
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populate_files(fd_mode2);
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}
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/*****************************************************************************
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* Gets the block size for the file system
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******************************************************************************/
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void get_blocksize(int fd)
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{
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struct stat file_stat;
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if (fstat(fd, &file_stat) < 0)
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tst_resm(TFAIL | TERRNO,
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"fstat failed while getting block_size");
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block_size = file_stat.st_blksize;
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buf_size = block_size;
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}
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/*****************************************************************************
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* Writes data into the file
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******************************************************************************/
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void populate_files(int fd)
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{
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char buf[buf_size + 1];
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int index;
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int blocks;
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int data;
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for (blocks = 0; blocks < BLOCKS_WRITTEN; blocks++) {
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for (index = 0; index < buf_size; index++)
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buf[index] = 'A' + (index % 26);
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buf[buf_size] = '\0';
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if ((data = write(fd, buf, buf_size)) == -1)
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tst_brkm(TBROK | TERRNO, cleanup, "write failed");
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}
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}
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int main(int ac, char **av)
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{
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loff_t expected_size;
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int lc;
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tst_parse_opts(ac, av, NULL, NULL);
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setup();
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for (lc = 0; TEST_LOOPING(lc); lc++) {
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tst_count = 0;
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expected_size = BLOCKS_WRITTEN * block_size + block_size;
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runtest(0, fd_mode1, expected_size);
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expected_size = BLOCKS_WRITTEN * block_size;
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runtest(FALLOC_FL_KEEP_SIZE, fd_mode2, expected_size);
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}
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cleanup();
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tst_exit();
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}
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/*****************************************************************************
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* Calls the system call, with appropriate parameters and writes data
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******************************************************************************/
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void runtest(int mode, int fd, loff_t expected_size)
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{
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loff_t offset;
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loff_t len = block_size;
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loff_t write_offset, lseek_offset;
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offset = lseek(fd, 0, SEEK_END);
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struct stat file_stat;
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errno = 0;
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TEST(fallocate(fd, mode, offset, len));
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/* check return code */
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if (TEST_RETURN != 0) {
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if (TEST_ERRNO == EOPNOTSUPP || TEST_ERRNO == ENOSYS) {
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tst_brkm(TCONF, cleanup,
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"fallocate system call is not implemented");
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}
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tst_resm(TFAIL | TTERRNO,
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"fallocate(%d, %d, %" PRId64 ", %" PRId64 ") failed",
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fd, mode, offset, len);
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return;
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} else {
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tst_resm(TPASS,
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"fallocate(%d, %d, %" PRId64 ", %" PRId64
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") returned %ld", fd, mode, offset, len,
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TEST_RETURN);
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}
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if (fstat(fd, &file_stat) < 0)
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tst_resm(TFAIL | TERRNO, "fstat failed after fallocate()");
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if (file_stat.st_size != expected_size)
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tst_resm(TFAIL | TERRNO,
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"fstat test fails on fallocate (%d, %d, %" PRId64 ", %"
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PRId64 ") Failed on mode", fd, mode, offset, len);
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write_offset = random() % len;
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lseek_offset = lseek(fd, write_offset, SEEK_CUR);
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if (lseek_offset != offset + write_offset) {
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tst_resm(TFAIL | TERRNO,
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"lseek fails in fallocate(%d, %d, %" PRId64 ", %"
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PRId64 ") failed on mode", fd, mode, offset, len);
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return;
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}
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//Write a character to file at random location
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TEST(write(fd, "A", 1));
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/* check return code */
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if (TEST_RETURN == -1) {
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tst_resm(TFAIL | TTERRNO,
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"write fails in fallocate(%d, %d, %" PRId64 ", %"
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PRId64 ") failed", fd, mode, offset, len);
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} else {
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tst_resm(TPASS,
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"write operation on fallocated(%d, %d, %"
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PRId64 ", %" PRId64 ") returned %ld", fd, mode,
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offset, len, TEST_RETURN);
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}
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}
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