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-rw-r--r--tests/fs-tests/stress/atoms/fwrite00.c209
1 files changed, 209 insertions, 0 deletions
diff --git a/tests/fs-tests/stress/atoms/fwrite00.c b/tests/fs-tests/stress/atoms/fwrite00.c
new file mode 100644
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+++ b/tests/fs-tests/stress/atoms/fwrite00.c
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+/*
+ * Copyright (C) 2007 Nokia Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ * Author: Adrian Hunter
+ */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include "tests.h"
+
+#define WRITE_BUFFER_SIZE 32768
+
+#define HOLE_BLOCK_SIZE 10000000
+
+void filestress00(void)
+{
+ int fd, i, deleted;
+ pid_t pid;
+ ssize_t written;
+ int64_t remains;
+ int64_t repeat;
+ size_t block;
+ char file_name[256];
+ char buf[WRITE_BUFFER_SIZE];
+
+ fd = -1;
+ deleted = 1;
+ pid = getpid();
+ tests_cat_pid(file_name, "filestress00_test_file_", pid);
+ srand(pid);
+ repeat = tests_repeat_parameter;
+ for (;;) {
+ /* Open the file */
+ if (fd == -1) {
+ fd = open(file_name, O_CREAT | O_WRONLY,
+ S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+ CHECK(fd != -1);
+ deleted = 0;
+ if (tests_unlink_flag) {
+ CHECK(unlink(file_name) != -1);
+ deleted = 1;
+ }
+ }
+ /* Get a different set of random data */
+ for (i = 0; i < WRITE_BUFFER_SIZE;++i)
+ buf[i] = rand();
+ if (tests_hole_flag) {
+ /* Make a hole */
+ CHECK(lseek(fd, tests_size_parameter, SEEK_SET) != -1);
+ written = write(fd, "!", 1);
+ if (written <= 0) {
+ /* File system full */
+ CHECK(errno == ENOSPC);
+ errno = 0;
+ }
+ CHECK(lseek(fd, 0, SEEK_SET) != -1);
+ /* Write at set points into the hole */
+ remains = tests_size_parameter;
+ while (remains > HOLE_BLOCK_SIZE) {
+ CHECK(lseek(fd, HOLE_BLOCK_SIZE,
+ SEEK_CUR) != -1);
+ written = write(fd, "!", 1);
+ remains -= HOLE_BLOCK_SIZE;
+ if (written <= 0) {
+ /* File system full */
+ CHECK(errno == ENOSPC);
+ errno = 0;
+ break;
+ }
+ }
+ } else {
+ /* Write data into the file */
+ CHECK(lseek(fd, 0, SEEK_SET) != -1);
+ remains = tests_size_parameter;
+ while (remains > 0) {
+ if (remains > WRITE_BUFFER_SIZE)
+ block = WRITE_BUFFER_SIZE;
+ else
+ block = remains;
+ written = write(fd, buf, block);
+ if (written <= 0) {
+ /* File system full */
+ CHECK(errno == ENOSPC);
+ errno = 0;
+ break;
+ }
+ remains -= written;
+ }
+ }
+ /* Break if repeat count exceeded */
+ if (tests_repeat_parameter > 0 && --repeat <= 0)
+ break;
+ /* Close if tests_close_flag */
+ if (tests_close_flag) {
+ CHECK(close(fd) != -1);
+ fd = -1;
+ }
+ /* Sleep */
+ if (tests_sleep_parameter > 0) {
+ unsigned us = tests_sleep_parameter * 1000;
+ unsigned rand_divisor = RAND_MAX / us;
+ unsigned s = (us / 2) + (rand() / rand_divisor);
+ usleep(s);
+ }
+ /* Delete if tests_delete flag */
+ if (!deleted && tests_delete_flag) {
+ CHECK(unlink(file_name) != -1);
+ deleted = 1;
+ }
+ }
+ CHECK(close(fd) != -1);
+ /* Sleep */
+ if (tests_sleep_parameter > 0) {
+ unsigned us = tests_sleep_parameter * 1000;
+ unsigned rand_divisor = RAND_MAX / us;
+ unsigned s = (us / 2) + (rand() / rand_divisor);
+ usleep(s);
+ }
+ /* Tidy up */
+ if (!deleted)
+ CHECK(unlink(file_name) != -1);
+}
+
+/* Title of this test */
+
+const char *filestress00_get_title(void)
+{
+ return "File stress test 00";
+}
+
+/* Description of this test */
+
+const char *filestress00_get_description(void)
+{
+ return
+ "Create a file named filestress00_test_file_pid, where " \
+ "pid is the process id. If the unlink option " \
+ "(-u or --unlink) is specified, " \
+ "unlink the file while holding the open file descriptor. " \
+ "If the hole option (-o or --hole) is specified, " \
+ "write a single character at the end of the file, creating a " \
+ "hole. " \
+ "Write a single character in the hole every 10 million " \
+ "bytes. " \
+ "If the hole option is not specified, then the file is " \
+ "filled with random data. " \
+ "If the close option (-c or --close) is specified the file " \
+ "is closed. " \
+ "If a sleep value is specified, the process sleeps. " \
+ "If the delete option (-e or --delete) is specified, then " \
+ "the file is deleted. " \
+ "If a repeat count is specified, then the task repeats " \
+ "that number of times. " \
+ "The repeat count is given by the -n or --repeat option, " \
+ "otherwise it defaults to 1. " \
+ "A repeat count of zero repeats forever. " \
+ "The file size is given by the -z or --size option, " \
+ "otherwise it defaults to 1000000. " \
+ "The sleep value is given by the -p or --sleep option, " \
+ "otherwise it defaults to 0. " \
+ "Sleep is specified in milliseconds.";
+}
+
+int main(int argc, char *argv[])
+{
+ int run_test;
+
+ /* Set default test file size */
+ tests_size_parameter = 1000000;
+
+ /* Set default test repetition */
+ tests_repeat_parameter = 1;
+
+ /* Set default test sleep */
+ tests_sleep_parameter = 0;
+
+ /* Handle common arguments */
+ run_test = tests_get_args(argc, argv, filestress00_get_title(),
+ filestress00_get_description(), "znpuoce");
+ if (!run_test)
+ return 1;
+ /* Change directory to the file system and check it is ok for testing */
+ tests_check_test_file_system();
+ /* Do the actual test */
+ filestress00();
+ return 0;
+}