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authorAdrian Hunter <ext-adrian.hunter@nokia.com>2007-03-15 08:45:19 -0500
committerJosh Boyer <jwboyer@gmail.com>2007-03-15 08:45:19 -0500
commit726ac243f051f0daee6149db66ac21ba621fb454 (patch)
tree257483dc155e539e5d7f08fb8009c57181919962 /tests/fs-tests/stress/atoms/rndrm00.c
parent876476b7bbf158c64868d379460a7b6bce7e95e0 (diff)
Add fs-tests from Adrian Hunter
Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com> Signed-off-by: Josh Boyer <jwboyer@gmail.com>
Diffstat (limited to 'tests/fs-tests/stress/atoms/rndrm00.c')
-rw-r--r--tests/fs-tests/stress/atoms/rndrm00.c157
1 files changed, 157 insertions, 0 deletions
diff --git a/tests/fs-tests/stress/atoms/rndrm00.c b/tests/fs-tests/stress/atoms/rndrm00.c
new file mode 100644
index 0000000..724b1c3
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+++ b/tests/fs-tests/stress/atoms/rndrm00.c
@@ -0,0 +1,157 @@
+/*
+ * 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"
+
+void rndrm00(void)
+{
+ int64_t repeat;
+ int64_t size, this_size;
+ pid_t pid;
+ char dir_name[256];
+
+ /* Create a directory to test in */
+ pid = getpid();
+ tests_cat_pid(dir_name, "rndrm00_test_dir_", pid);
+ if (chdir(dir_name) == -1)
+ CHECK(mkdir(dir_name, 0777) != -1);
+ CHECK(chdir(dir_name) != -1);
+ /* Repeat loop */
+ repeat = tests_repeat_parameter;
+ size = 0;
+ for (;;) {
+ /* Create and remove sub-dirs and small files, */
+ /* but tending to grow */
+ do {
+ if (tests_random_no(3)) {
+ this_size = tests_create_entry(NULL);
+ if (!this_size)
+ break;
+ size += this_size;
+ } else {
+ this_size = tests_remove_entry();
+ size -= this_size;
+ if (size < 0)
+ size = 0;
+ if (!this_size)
+ this_size = 1;
+ }
+ } while (this_size &&
+ (tests_size_parameter == 0 ||
+ size < tests_size_parameter));
+ /* Create and remove sub-dirs and small files, but */
+ /* but tending to shrink */
+ do {
+ if (!tests_random_no(3)) {
+ this_size = tests_create_entry(NULL);
+ size += this_size;
+ } else {
+ this_size = tests_remove_entry();
+ size -= this_size;
+ if (size < 0)
+ size = 0;
+ }
+ } while ((tests_size_parameter != 0 &&
+ size > tests_size_parameter / 10) ||
+ (tests_size_parameter == 0 && size > 100000));
+ /* Break if repeat count exceeded */
+ if (tests_repeat_parameter > 0 && --repeat <= 0)
+ break;
+ /* 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 by removing everything */
+ tests_clear_dir(".");
+ CHECK(chdir("..") != -1);
+ CHECK(rmdir(dir_name) != -1);
+}
+
+/* Title of this test */
+
+const char *rndrm00_get_title(void)
+{
+ return "Randomly create and remove directories and files";
+}
+
+/* Description of this test */
+
+const char *rndrm00_get_description(void)
+{
+ return
+ "Create a directory named rndrm00_test_dir_pid, where " \
+ "pid is the process id. Within that directory, " \
+ "randomly create and remove " \
+ "a number of sub-directories and small files, " \
+ "but do more creates than removes. " \
+ "When the total size of all sub-directories and files " \
+ "is greater than the size specified by the size parameter, " \
+ "start to do more removes than creates. " \
+ "The size parameter is given by the -z or --size option, " \
+ "otherwise it defaults to 1000000. " \
+ "A size of zero fills the file system until there is no "
+ "space left. " \
+ "The task repeats, sleeping in between each iteration. " \
+ "The repeat count is set by the -n or --repeat option, " \
+ "otherwise it defaults to 1. " \
+ "A repeat count of zero repeats forever. " \
+ "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 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, rndrm00_get_title(),
+ rndrm00_get_description(), "znp");
+ 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 */
+ rndrm00();
+ return 0;
+}