278 lines
8.0 KiB
C
278 lines
8.0 KiB
C
/******************************************************************************
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* fallocate03.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 : fallocate03
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*
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* EXECUTED BY : anyone
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*
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* TEST TITLE : fallocate
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*
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* TEST CASE TOTAL : 8
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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 on a sparse file)
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*
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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 specified through test_data
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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 working of fallocate on sparse file
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* fallocate is tested for different offsets
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*
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* Total 8 Test Cases :-
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* Different offsets with in a sparse file is tested
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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 a file with hole, created through lseek
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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 failed
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* TEST fails, 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> //Can be done with out
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#include <fcntl.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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#define BLOCKS_WRITTEN 12
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#define HOLE_SIZE_IN_BLOCKS 12
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#define DEFAULT_MODE 0
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#define TRUE 0
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void get_blocksize(int);
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void populate_file();
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void file_seek(off_t);
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char *TCID = "fallocate03";
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char fname[255];
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int fd;
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struct test_data_t {
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int mode;
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loff_t offset;
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loff_t len;
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int error;
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} test_data[] = {
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{
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DEFAULT_MODE, 2, 1, TRUE}, {
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DEFAULT_MODE, BLOCKS_WRITTEN, 1, TRUE}, {
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DEFAULT_MODE, BLOCKS_WRITTEN + HOLE_SIZE_IN_BLOCKS / 2 - 1, 1, TRUE},
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{
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DEFAULT_MODE, BLOCKS_WRITTEN + HOLE_SIZE_IN_BLOCKS + 1, 1, TRUE}, {
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FALLOC_FL_KEEP_SIZE, 2, 1, TRUE}, {
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FALLOC_FL_KEEP_SIZE, BLOCKS_WRITTEN, 1, TRUE}, {
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FALLOC_FL_KEEP_SIZE,
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BLOCKS_WRITTEN + HOLE_SIZE_IN_BLOCKS / 2 + 1, 1, TRUE}, {
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FALLOC_FL_KEEP_SIZE, BLOCKS_WRITTEN + HOLE_SIZE_IN_BLOCKS + 2,
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1, TRUE}
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};
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int TST_TOTAL = sizeof(test_data) / sizeof(test_data[0]);
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int 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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/* Close all open file descriptors. */
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if (close(fd) == -1)
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tst_resm(TWARN | TERRNO, "close(%s) failed", fname);
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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, "tfile_sparse_%d", getpid());
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fd = SAFE_OPEN(cleanup, fname, O_RDWR | O_CREAT, 0700);
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get_blocksize(fd);
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populate_file();
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file_seek(BLOCKS_WRITTEN + HOLE_SIZE_IN_BLOCKS); /* create holes */
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populate_file();
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file_seek(0); /* Rewind */
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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 = (int)file_stat.st_blksize;
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buf_size = block_size;
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}
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/*****************************************************************************
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* Create a Hole in the file
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******************************************************************************/
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void file_seek(off_t offset)
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{
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offset *= block_size;
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lseek(fd, offset, SEEK_SET);
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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_file(void)
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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)) < 0)
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tst_brkm(TBROK | TERRNO, cleanup,
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"Unable to write to %s", fname);
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}
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}
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/*****************************************************************************
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* Main function that calls the system call with the appropriate parameters
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******************************************************************************/
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/* ac: number of command line parameters */
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/* av: pointer to the array of the command line parameters */
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int main(int ac, char **av)
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{
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int test_index = 0;
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int lc;
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/***************************************************************
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* parse standard options
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***************************************************************/
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tst_parse_opts(ac, av, NULL, NULL);
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/* perform global test setup, call setup() function */
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setup();
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for (lc = 0; TEST_LOOPING(lc); lc++) {
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/* reset tst_count in case we are looping */
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tst_count = 0;
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for (test_index = 0; test_index < TST_TOTAL; test_index++) {
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TEST(fallocate
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(fd, test_data[test_index].mode,
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test_data[test_index].offset * block_size,
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test_data[test_index].len * block_size));
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/* check return code */
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if (TEST_RETURN != test_data[test_index].error) {
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if (TEST_ERRNO == EOPNOTSUPP
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|| 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(%s, %d, %" PRId64 ", %"
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PRId64 ") failed", fname,
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test_data[test_index].mode,
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test_data[test_index].offset *
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block_size,
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test_data[test_index].len *
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block_size);
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} else {
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tst_resm(TPASS,
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"fallocate(%s, %d, %" PRId64
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", %" PRId64 ") returned %ld",
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fname,
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test_data[test_index].mode,
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test_data[test_index].offset *
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block_size,
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test_data[test_index].len *
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block_size, TEST_RETURN);
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}
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}
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}
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cleanup();
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tst_exit();
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}
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