146 lines
3.0 KiB
C
146 lines
3.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) International Business Machines Corp., 2001
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* Copyright (c) Linux Test Project, 2022
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*/
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/*\
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* [Description]
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*
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* Create multiple processes which create subdirectories in the
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* same directory multiple times within test time.
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*/
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#include <stdio.h>
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#include <sys/param.h>
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#include "tst_test.h"
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#include "tst_safe_pthread.h"
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#define MNTPOINT "mntpoint"
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#define MODE_RWX 07770
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#define DIR_NAME MNTPOINT "/X.%d"
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#define DIR_NAME_GROUP MNTPOINT "/X.%d.%d"
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#define NCHILD 3
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static int child_groups = 2;
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static int test_time = 1;
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static int nfiles = 10;
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static volatile int done;
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/*
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* Routine which attempts to create directories in the test
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* directory that already exist.
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*/
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static void test1(int child_num)
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{
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int j;
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char tmpdir[MAXPATHLEN];
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while (!done) {
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for (j = 0; j < nfiles; j += NCHILD) {
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sprintf(tmpdir, DIR_NAME, j);
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TST_EXP_FAIL_SILENT(mkdir(tmpdir, MODE_RWX), EEXIST);
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if (!TST_PASS)
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break;
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}
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}
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tst_res(TPASS, "[%d] create dirs that already exist", child_num);
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}
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/*
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* Child routine which attempts to remove directories from the
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* test directory which do not exist.
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*/
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static void test2(int child_num)
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{
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int j;
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char tmpdir[MAXPATHLEN];
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while (!done) {
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for (j = 1; j < nfiles; j += NCHILD) {
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sprintf(tmpdir, DIR_NAME, j);
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TST_EXP_FAIL_SILENT(rmdir(tmpdir), ENOENT);
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if (!TST_PASS)
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break;
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}
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}
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tst_res(TPASS, "[%d] remove dirs that do not exist", child_num);
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}
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/*
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* Child routine which creates and deletes directories in the
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* test directory.
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*/
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static void test3(int child_num)
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{
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int j;
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char tmpdir[MAXPATHLEN];
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while (!done) {
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for (j = 2; j < nfiles; j += NCHILD) {
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sprintf(tmpdir, DIR_NAME_GROUP, j, child_num / NCHILD);
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TST_EXP_PASS_SILENT(mkdir(tmpdir, MODE_RWX));
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if (!TST_PASS)
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break;
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}
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for (j = 2; j < nfiles; j += NCHILD) {
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sprintf(tmpdir, DIR_NAME_GROUP, j, child_num / NCHILD);
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TST_EXP_PASS_SILENT(rmdir(tmpdir));
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if (!TST_PASS)
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break;
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}
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}
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tst_res(TPASS, "[%d] create/remove dirs", child_num);
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}
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static void *child_thread_func(void *arg)
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{
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void (*tests[NCHILD])(int) = { test1, test2, test3 };
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int child_num = (long)arg;
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tests[child_num % NCHILD](child_num);
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/* if any thread failed, make other finish as well */
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done = 1;
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return NULL;
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}
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static void verify_mkdir(void)
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{
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pthread_t child_thread[NCHILD * child_groups];
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long i;
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done = 0;
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for (i = 0; i < child_groups * NCHILD; i++) {
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SAFE_PTHREAD_CREATE(&child_thread[i], NULL,
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child_thread_func, (void *)i);
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}
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sleep(test_time);
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done = 1;
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for (i = 0; i < child_groups * NCHILD; i++)
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SAFE_PTHREAD_JOIN(child_thread[i], NULL);
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}
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static void setup(void)
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{
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int j;
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char tmpdir[MAXPATHLEN];
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for (j = 0; j < nfiles; j += NCHILD) {
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sprintf(tmpdir, DIR_NAME, j);
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SAFE_MKDIR(tmpdir, MODE_RWX);
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}
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}
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static struct tst_test test = {
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.test_all = verify_mkdir,
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.needs_root = 1,
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.setup = setup,
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.mount_device = 1,
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.mntpoint = MNTPOINT,
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.all_filesystems = 1,
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};
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