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Diffstat (limited to 'tools/regression/lib/libutil/test-pidfile.c')
| -rw-r--r-- | tools/regression/lib/libutil/test-pidfile.c | 280 |
1 files changed, 0 insertions, 280 deletions
diff --git a/tools/regression/lib/libutil/test-pidfile.c b/tools/regression/lib/libutil/test-pidfile.c deleted file mode 100644 index 0b70bc8..0000000 --- a/tools/regression/lib/libutil/test-pidfile.c +++ /dev/null @@ -1,280 +0,0 @@ -/*- - * Copyright (c) 2007-2009 Dag-Erling Coïdan Smørgrav - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer - * in this position and unchanged. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/wait.h> - -#include <fcntl.h> -#include <errno.h> -#include <signal.h> -#include <stdint.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#include <libutil.h> - -/* - * We need a signal handler so kill(2) will interrupt our child's - * select(2) instead of killing it. - */ -static void -signal_handler(int sig) -{ - (void)sig; -} - -/* - * Test that pidfile_open() can create a pidfile and that pidfile_write() - * can write to it. - */ -static const char * -test_pidfile_uncontested(void) -{ - const char *fn = "test_pidfile_uncontested"; - struct pidfh *pf; - pid_t other = 0; - - unlink(fn); - pf = pidfile_open(fn, 0600, &other); - if (pf == NULL && other != 0) - return ("pidfile exists and is locked"); - if (pf == NULL) - return (strerror(errno)); - if (pidfile_write(pf) != 0) { - pidfile_close(pf); - unlink(fn); - return ("failed to write PID"); - } - pidfile_close(pf); - unlink(fn); - return (NULL); -} - -/* - * Test that pidfile_open() locks against self. - */ -static const char * -test_pidfile_self(void) -{ - const char *fn = "test_pidfile_self"; - struct pidfh *pf1, *pf2; - pid_t other = 0; - int serrno; - - unlink(fn); - pf1 = pidfile_open(fn, 0600, &other); - if (pf1 == NULL && other != 0) - return ("pidfile exists and is locked"); - if (pf1 == NULL) - return (strerror(errno)); - if (pidfile_write(pf1) != 0) { - serrno = errno; - pidfile_close(pf1); - unlink(fn); - return (strerror(serrno)); - } - // second open should fail - pf2 = pidfile_open(fn, 0600, &other); - if (pf2 != NULL) { - pidfile_close(pf1); - pidfile_close(pf2); - unlink(fn); - return ("managed to opened pidfile twice"); - } - if (other != getpid()) { - pidfile_close(pf1); - unlink(fn); - return ("pidfile contained wrong PID"); - } - pidfile_close(pf1); - unlink(fn); - return (NULL); -} - -/* - * Common code for test_pidfile_{contested,inherited}. - */ -static const char * -common_test_pidfile_child(const char *fn, int parent_open) -{ - struct pidfh *pf = NULL; - pid_t other = 0, pid = 0; - int fd[2], serrno, status; - char ch; - - unlink(fn); - if (pipe(fd) != 0) - return (strerror(errno)); - - if (parent_open) { - pf = pidfile_open(fn, 0600, &other); - if (pf == NULL && other != 0) - return ("pidfile exists and is locked"); - if (pf == NULL) - return (strerror(errno)); - } - - pid = fork(); - if (pid == -1) - return (strerror(errno)); - if (pid == 0) { - // child - close(fd[0]); - signal(SIGINT, signal_handler); - if (!parent_open) { - pf = pidfile_open(fn, 0600, &other); - if (pf == NULL && other != 0) - return ("pidfile exists and is locked"); - if (pf == NULL) - return (strerror(errno)); - } - if (pidfile_write(pf) != 0) { - serrno = errno; - pidfile_close(pf); - unlink(fn); - return (strerror(serrno)); - } - if (pf == NULL) - _exit(1); - if (pidfile_write(pf) != 0) - _exit(1); - if (write(fd[1], "*", 1) != 1) - _exit(1); - select(0, 0, 0, 0, 0); - _exit(0); - } - // parent - close(fd[1]); - if (pf) - pidfile_close(pf); - - // wait for the child to signal us - if (read(fd[0], &ch, 1) != 1) { - serrno = errno; - unlink(fn); - kill(pid, SIGTERM); - errno = serrno; - return (strerror(errno)); - } - - // We shouldn't be able to lock the same pidfile as our child - pf = pidfile_open(fn, 0600, &other); - if (pf != NULL) { - pidfile_close(pf); - unlink(fn); - return ("managed to lock contested pidfile"); - } - - // Failed to lock, but not because it was contested - if (other == 0) { - unlink(fn); - return (strerror(errno)); - } - - // Locked by the wrong process - if (other != pid) { - unlink(fn); - return ("pidfile contained wrong PID"); - } - - // check our child's fate - if (pf) - pidfile_close(pf); - unlink(fn); - if (kill(pid, SIGINT) != 0) - return (strerror(errno)); - if (waitpid(pid, &status, 0) == -1) - return (strerror(errno)); - if (WIFSIGNALED(status)) - return ("child caught signal"); - if (WEXITSTATUS(status) != 0) - return ("child returned non-zero status"); - - // success - return (NULL); -} - -/* - * Test that pidfile_open() fails when attempting to open a pidfile that - * is already locked, and that it returns the correct PID. - */ -static const char * -test_pidfile_contested(void) -{ - const char *fn = "test_pidfile_contested"; - const char *result; - - result = common_test_pidfile_child(fn, 0); - return (result); -} - -/* - * Test that the pidfile lock is inherited. - */ -static const char * -test_pidfile_inherited(void) -{ - const char *fn = "test_pidfile_inherited"; - const char *result; - - result = common_test_pidfile_child(fn, 1); - return (result); -} - -static struct test { - const char *name; - const char *(*func)(void); -} t[] = { - { "pidfile_uncontested", test_pidfile_uncontested }, - { "pidfile_self", test_pidfile_self }, - { "pidfile_contested", test_pidfile_contested }, - { "pidfile_inherited", test_pidfile_inherited }, -}; - -int -main(void) -{ - const char *result; - int i, nt; - - nt = sizeof(t) / sizeof(*t); - printf("1..%d\n", nt); - for (i = 0; i < nt; ++i) { - if ((result = t[i].func()) != NULL) - printf("not ok %d - %s # %s\n", i + 1, - t[i].name, result); - else - printf("ok %d - %s\n", i + 1, - t[i].name); - } - exit(0); -} |
