202 lines
6.2 KiB
C
202 lines
6.2 KiB
C
/*
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* Copyright (C) 2007 Nokia Corporation.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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* Author: Adrian Hunter
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*/
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#include <unistd.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include "tests.h"
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void test_2(void)
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{
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pid_t pid;
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int create, full;
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unsigned i, number_of_files;
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unsigned growth;
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unsigned size;
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uint64_t big_file_size;
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int fd;
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off_t offset;
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char dir_name[256];
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/* Create a directory to test in */
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pid = getpid();
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tests_cat_pid(dir_name, "test_2_test_dir_", pid);
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if (chdir(dir_name) == -1)
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CHECK(mkdir(dir_name, 0777) != -1);
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CHECK(chdir(dir_name) != -1);
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/* Create up to 1000 files appending 400 bytes at a time to each file */
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/* until the file system is full.*/
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create = 1;
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full = 0;
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number_of_files = 1000;
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while (!full) {
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for (i = 0; i < number_of_files; ++i) {
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growth = tests_append_to_fragment_file(i, 400, create);
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if (!growth) {
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full = 1;
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if (create)
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number_of_files = i;
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break;
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}
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}
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create = 0;
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}
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/* Check the files */
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CHECK(tests_count_files_in_dir(".") == number_of_files);
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for (i = 0; i < number_of_files; ++i)
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tests_check_fragment_file(i);
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/* Delete half of them */
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for (i = 1; i < number_of_files; i += 2)
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tests_delete_fragment_file(i);
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/* Check them again */
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CHECK(tests_count_files_in_dir(".") == (number_of_files + 1) / 2);
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for (i = 0; i < number_of_files; i += 2)
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tests_check_fragment_file(i);
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CHECK(tests_count_files_in_dir(".") == (number_of_files + 1) / 2);
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/* Create a big file that fills two thirds of the free space */
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big_file_size = tests_get_big_file_size(2,3);
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/* Check the big file */
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tests_create_file("big_file", big_file_size);
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CHECK(tests_count_files_in_dir(".") == 1 + (number_of_files + 1) / 2);
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tests_check_filled_file("big_file");
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/* Open the big file */
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fd = open("big_file",O_RDWR | tests_maybe_sync_flag());
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CHECK(fd != -1);
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/* Delete the big file while it is still open */
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tests_delete_file("big_file");
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/* Check the big file again */
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CHECK(tests_count_files_in_dir(".") == (number_of_files + 1) / 2);
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tests_check_filled_file_fd(fd);
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/* Write parts of the files and check them */
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offset = 100; /* Offset to write at, in the small files */
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size = 200; /* Number of bytes to write at the offset */
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for (i = 0; i < number_of_files; i += 2)
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tests_overwite_fragment_file(i, offset, size);
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/* Rewrite the big file entirely */
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tests_write_filled_file(fd, 0, big_file_size);
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for (i = 0; i < number_of_files; i += 2)
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tests_check_fragment_file(i);
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tests_check_filled_file_fd(fd);
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offset = 300; /* Offset to write at, in the small files */
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size = 400; /* Number of bytes to write at the offset */
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for (i = 0; i < number_of_files; i += 2)
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tests_overwite_fragment_file(i, offset, size);
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/* Rewrite the big file entirely */
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tests_write_filled_file(fd, 0, big_file_size);
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for (i = 0; i < number_of_files; i += 2)
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tests_check_fragment_file(i);
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tests_check_filled_file_fd(fd);
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offset = 110; /* Offset to write at, in the small files */
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size = 10; /* Number of bytes to write at the offset */
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for (i = 0; i < number_of_files; i += 2)
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tests_overwite_fragment_file(i, offset, size);
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/* Rewrite the big file entirely */
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tests_write_filled_file(fd, 0, big_file_size);
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for (i = 0; i < number_of_files; i += 2)
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tests_check_fragment_file(i);
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tests_check_filled_file_fd(fd);
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offset = 10; /* Offset to write at, in the small files */
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size = 1000; /* Number of bytes to write at the offset */
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for (i = 0; i < number_of_files; i += 2)
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tests_overwite_fragment_file(i, offset, size);
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/* Rewrite the big file entirely */
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tests_write_filled_file(fd, 0, big_file_size);
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for (i = 0; i < number_of_files; i += 2)
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tests_check_fragment_file(i);
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tests_check_filled_file_fd(fd);
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offset = 0; /* Offset to write at, in the small files */
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size = 100000; /* Number of bytes to write at the offset */
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for (i = 0; i < number_of_files; i += 2)
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tests_overwite_fragment_file(i, offset, size);
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/* Rewrite the big file entirely */
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tests_write_filled_file(fd, 0, big_file_size);
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for (i = 0; i < number_of_files; i += 2)
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tests_check_fragment_file(i);
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tests_check_filled_file_fd(fd);
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/* Close the big file*/
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CHECK(close(fd) != -1);
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/* Check the small files */
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CHECK(tests_count_files_in_dir(".") == (number_of_files + 1) / 2);
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for (i = 0; i < number_of_files; i += 2)
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tests_check_fragment_file(i);
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/* Delete the small files */
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for (i = 0; i < number_of_files; i += 2)
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tests_delete_fragment_file(i);
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CHECK(tests_count_files_in_dir(".") == 0);
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CHECK(chdir("..") != -1);
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CHECK(rmdir(dir_name) != -1);
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}
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/* Title of this test */
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const char *test_2_get_title(void)
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{
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return "Repeated write many small files and one big deleted file";
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}
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/* Description of this test */
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const char *test_2_get_description(void)
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{
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return
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"Create a directory named test_2_test_dir_pid, where " \
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"pid is the process id. Within that directory, " \
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"create about 1000 files. Append 400 bytes to each until " \
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"the file system is full. Then delete half of them. Then " \
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"create a big file that uses about 2/3 of the remaining free " \
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"space. Get a file descriptor for the big file, and delete " \
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"the big file. Then repeatedly write to the small files " \
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"and the big file. " \
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"Finally delete the big file and directory.";
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}
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int main(int argc, char *argv[])
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{
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int run_test;
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/* Handle common arguments */
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run_test = tests_get_args(argc, argv, test_2_get_title(),
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test_2_get_description(), "s");
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if (!run_test)
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return 1;
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/* Change directory to the file system and check it is ok for testing */
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tests_check_test_file_system();
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/* Do the actual test */
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test_2();
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return 0;
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}
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