644 lines
		
	
	
		
			15 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			644 lines
		
	
	
		
			15 KiB
		
	
	
	
		
			C
		
	
	
	
| /*
 | |
|  *
 | |
|  *   Copyright (c) International Business Machines  Corp., 2001
 | |
|  *
 | |
|  *   This program is free software;  you can redistribute it and/or modify
 | |
|  *   it under the terms of the GNU General Public License as published by
 | |
|  *   the Free Software Foundation; either version 2 of the License, or
 | |
|  *   (at your option) any later version.
 | |
|  *
 | |
|  *   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 Street, Fifth Floor, Boston, MA 02110-1301 USA
 | |
|  */
 | |
| 
 | |
| /*
 | |
|  * NAME
 | |
|  *	fcntl11.c
 | |
|  *
 | |
|  * DESCRIPTION
 | |
|  *	Testcase to check locking of regions of a file
 | |
|  *
 | |
|  * ALGORITHM
 | |
|  *	Test changing lock sections around a write lock
 | |
|  *
 | |
|  * USAGE
 | |
|  *	fcntl11
 | |
|  *
 | |
|  * HISTORY
 | |
|  *	07/2001 Ported by Wayne Boyer
 | |
|  *
 | |
|  * RESTRICTIONS
 | |
|  *	None
 | |
|  */
 | |
| 
 | |
| #include <fcntl.h>
 | |
| #include <errno.h>
 | |
| #include <signal.h>
 | |
| #include <sys/types.h>
 | |
| #include <sys/stat.h>
 | |
| #include <sys/wait.h>
 | |
| #include <inttypes.h>
 | |
| #include "test.h"
 | |
| #include "safe_macros.h"
 | |
| 
 | |
| #define STRINGSIZE	27
 | |
| #define STRING		"abcdefghijklmnopqrstuvwxyz\n"
 | |
| #define STOP		0xFFF0
 | |
| 
 | |
| int parent_pipe[2];
 | |
| int child_pipe[2];
 | |
| int fd;
 | |
| pid_t parent_pid, child_pid;
 | |
| 
 | |
| void parent_put();
 | |
| void parent_get();
 | |
| void child_put();
 | |
| void child_get();
 | |
| void stop_child();
 | |
| void compare_lock(struct flock *, short, short, int, int, pid_t);
 | |
| void unlock_file();
 | |
| void do_test(struct flock *, short, short, int, int);
 | |
| void catch_child();
 | |
| char *str_type();
 | |
| int do_lock(int, short, short, int, int);
 | |
| 
 | |
| char *TCID = "fcntl11";
 | |
| int TST_TOTAL = 1;
 | |
| 
 | |
| int fail;
 | |
| 
 | |
| void cleanup(void)
 | |
| {
 | |
| 	tst_rmdir();
 | |
| 
 | |
| }
 | |
| 
 | |
| void setup(void)
 | |
| {
 | |
| 	char *buf = STRING;
 | |
| 	char template[PATH_MAX];
 | |
| 	struct sigaction act;
 | |
| 
 | |
| 	tst_sig(FORK, DEF_HANDLER, cleanup);
 | |
| 	tst_tmpdir();
 | |
| 
 | |
| 	umask(0);
 | |
| 
 | |
| 	TEST_PAUSE;
 | |
| 
 | |
| 	SAFE_PIPE(cleanup, parent_pipe);
 | |
| 	SAFE_PIPE(cleanup, child_pipe);
 | |
| 	parent_pid = getpid();
 | |
| 	snprintf(template, PATH_MAX, "fcntl11XXXXXX");
 | |
| 
 | |
| 	if ((fd = mkstemp(template)) < 0)
 | |
| 		tst_resm(TFAIL, "Couldn't open temp file! errno = %d", errno);
 | |
| 
 | |
| 	SAFE_WRITE(cleanup, 0, fd, buf, STRINGSIZE);
 | |
| 
 | |
| 	memset(&act, 0, sizeof(act));
 | |
| 	act.sa_handler = catch_child;
 | |
| 	sigemptyset(&act.sa_mask);
 | |
| 	sigaddset(&act.sa_mask, SIGCHLD);
 | |
| 	if ((sigaction(SIGCHLD, &act, NULL)) < 0)
 | |
| 		tst_brkm(TBROK | TERRNO, cleanup,
 | |
| 			 "sigaction(SIGCHLD, ..) failed");
 | |
| }
 | |
| 
 | |
| void do_child(void)
 | |
| {
 | |
| 	struct flock fl;
 | |
| 
 | |
| 	close(parent_pipe[1]);
 | |
| 	close(child_pipe[0]);
 | |
| 	while (1) {
 | |
| 		child_get(&fl);
 | |
| 		if (fcntl(fd, F_GETLK, &fl) < 0)
 | |
| 			tst_resm(TFAIL | TERRNO, "fcntl on file failed");
 | |
| 		child_put(&fl);
 | |
| 	}
 | |
| }
 | |
| 
 | |
| int do_lock(int cmd, short type, short whence, int start, int len)
 | |
| {
 | |
| 	struct flock fl;
 | |
| 
 | |
| 	fl.l_type = type;
 | |
| 	fl.l_whence = whence;
 | |
| 	fl.l_start = start;
 | |
| 	fl.l_len = len;
 | |
| 	return (fcntl(fd, cmd, &fl));
 | |
| }
 | |
| 
 | |
| void do_test(struct flock *fl, short type, short whence, int start, int len)
 | |
| {
 | |
| 	fl->l_type = type;
 | |
| 	fl->l_whence = whence;
 | |
| 	fl->l_start = start;
 | |
| 	fl->l_len = len;
 | |
| 	fl->l_pid = (short)0;
 | |
| 
 | |
| 	parent_put(fl);
 | |
| 	parent_get(fl);
 | |
| }
 | |
| 
 | |
| void
 | |
| compare_lock(struct flock *fl, short type, short whence, int start, int len,
 | |
| 	     pid_t pid)
 | |
| {
 | |
| 	if (fl->l_type != type)
 | |
| 		tst_resm(TFAIL, "lock type is wrong should be %s is %s",
 | |
| 			 str_type(type), str_type(fl->l_type));
 | |
| 
 | |
| 	if (fl->l_whence != whence)
 | |
| 		tst_resm(TFAIL, "lock whence is wrong should be %d is %d",
 | |
| 			 whence, fl->l_whence);
 | |
| 
 | |
| 	if (fl->l_start != start)
 | |
| 		tst_resm(TFAIL, "region starts in wrong place, should be "
 | |
| 			 "%d is %" PRId64, start, (int64_t) fl->l_start);
 | |
| 
 | |
| 	if (fl->l_len != len)
 | |
| 		tst_resm(TFAIL,
 | |
| 			 "region length is wrong, should be %d is %" PRId64,
 | |
| 			 len, (int64_t) fl->l_len);
 | |
| 
 | |
| 	if (fl->l_pid != pid)
 | |
| 		tst_resm(TFAIL, "locking pid is wrong, should be %d is %d",
 | |
| 			 pid, fl->l_pid);
 | |
| }
 | |
| 
 | |
| void unlock_file(void)
 | |
| {
 | |
| 	struct flock fl;
 | |
| 
 | |
| 	if (do_lock(F_SETLK, (short)F_UNLCK, (short)0, 0, 0) < 0)
 | |
| 		tst_resm(TFAIL | TERRNO, "fcntl on file failed");
 | |
| 	do_test(&fl, F_WRLCK, 0, 0, 0);
 | |
| 	compare_lock(&fl, (short)F_UNLCK, (short)0, 0, 0, (pid_t) 0);
 | |
| }
 | |
| 
 | |
| char *str_type(int type)
 | |
| {
 | |
| 	static char buf[20];
 | |
| 
 | |
| 	switch (type) {
 | |
| 	case 0:
 | |
| 		return ("F_RDLCK");
 | |
| 	case 1:
 | |
| 		return ("F_WRLCK");
 | |
| 	case 2:
 | |
| 		return ("F_UNLCK");
 | |
| 	default:
 | |
| 		sprintf(buf, "BAD VALUE: %d", type);
 | |
| 		return (buf);
 | |
| 	}
 | |
| }
 | |
| 
 | |
| void parent_put(struct flock *l)
 | |
| {
 | |
| 	SAFE_WRITE(cleanup, 1, parent_pipe[1], l, sizeof(*l));
 | |
| }
 | |
| 
 | |
| void parent_get(struct flock *l)
 | |
| {
 | |
| 	SAFE_READ(cleanup, 1, child_pipe[0], l, sizeof(*l));
 | |
| }
 | |
| 
 | |
| void child_put(struct flock *l)
 | |
| {
 | |
| 	SAFE_WRITE(NULL, 1, child_pipe[1], l, sizeof(*l));
 | |
| }
 | |
| 
 | |
| void child_get(struct flock *l)
 | |
| {
 | |
| 	SAFE_READ(NULL, 1, parent_pipe[0], l, sizeof(*l));
 | |
| 	if (l->l_type == (short)STOP)
 | |
| 		exit(0);
 | |
| }
 | |
| 
 | |
| void stop_child(void)
 | |
| {
 | |
| 	struct flock fl;
 | |
| 
 | |
| 	signal(SIGCHLD, SIG_DFL);
 | |
| 	fl.l_type = STOP;
 | |
| 	parent_put(&fl);
 | |
| 	wait(0);
 | |
| }
 | |
| 
 | |
| void catch_child(void)
 | |
| {
 | |
| 	tst_brkm(TFAIL, cleanup, "Unexpected death of child process");
 | |
| }
 | |
| 
 | |
| int main(int ac, char **av)
 | |
| {
 | |
| 	struct flock tl;
 | |
| 
 | |
| 	int lc;
 | |
| 
 | |
| 	tst_parse_opts(ac, av, NULL, NULL);
 | |
| #ifdef UCLINUX
 | |
| 	maybe_run_child(&do_child, "ddddd", &parent_pipe[0],
 | |
| 			&parent_pipe[1], &child_pipe[0], &child_pipe[1], &fd);
 | |
| #endif
 | |
| 
 | |
| 	setup();		/* global setup */
 | |
| 
 | |
| 	/* Check for looping state if -i option is given */
 | |
| 	for (lc = 0; TEST_LOOPING(lc); lc++) {
 | |
| 		/* reset tst_count in case we are looping */
 | |
| 		tst_count = 0;
 | |
| 
 | |
| 		if ((child_pid = FORK_OR_VFORK()) == 0) {	/* parent */
 | |
| #ifdef UCLINUX
 | |
| 			if (self_exec(av[0], "ddddd", parent_pipe[0],
 | |
| 				      parent_pipe[1], child_pipe[0],
 | |
| 				      child_pipe[1], fd) < 0)
 | |
| 				tst_brkm(TBROK | TERRNO, cleanup,
 | |
| 					 "self_exec failed");
 | |
| #else
 | |
| 			do_child();
 | |
| #endif
 | |
| 		} else if (child_pid == -1)
 | |
| 			tst_brkm(TBROK | TERRNO, cleanup, "fork failed");
 | |
| 
 | |
| 		SAFE_CLOSE(cleanup, parent_pipe[0]);
 | |
| 		SAFE_CLOSE(cleanup, child_pipe[1]);
 | |
| 
 | |
| /* //block1: */
 | |
| 		tst_resm(TINFO, "Enter block 1");
 | |
| 
 | |
| 		/*
 | |
| 		 * Add a write lock to the middle of the file and a read
 | |
| 		 * at the begining
 | |
| 		 */
 | |
| 		if (do_lock(F_SETLK, (short)F_WRLCK, (short)0, 10, 5) < 0)
 | |
| 			tst_resm(TFAIL | TERRNO, "fcntl on file failed");
 | |
| 
 | |
| 		if (do_lock(F_SETLK, (short)F_RDLCK, (short)0, 1, 5) < 0)
 | |
| 			tst_resm(TFAIL | TERRNO, "fcntl on file failed");
 | |
| 
 | |
| 		/*
 | |
| 		 * Test read lock
 | |
| 		 */
 | |
| 		do_test(&tl, F_WRLCK, 0, 0, 0);
 | |
| 		compare_lock(&tl, (short)F_RDLCK, (short)0, 1, 5, parent_pid);
 | |
| 
 | |
| 		/*
 | |
| 		 * Test write lock
 | |
| 		 */
 | |
| 		do_test(&tl, F_WRLCK, 0, 6, 0);
 | |
| 		compare_lock(&tl, (short)F_WRLCK, (short)0, 10, 5, parent_pid);
 | |
| 
 | |
| 		/*
 | |
| 		 * Test that the rest of the file is unlocked
 | |
| 		 */
 | |
| 		do_test(&tl, F_WRLCK, 0, 15, 0);
 | |
| 		compare_lock(&tl, (short)F_UNLCK, (short)0, 15, 0, 0);
 | |
| 
 | |
| 		/*
 | |
| 		 * remove all the locks set above
 | |
| 		 */
 | |
| 		unlock_file();
 | |
| 
 | |
| 		tst_resm(TINFO, "Exit block 1");
 | |
| 
 | |
| /* //block2: */
 | |
| 		tst_resm(TINFO, "Enter block 2");
 | |
| 
 | |
| 		/*
 | |
| 		 * Set a write lock at the middle of the file and a
 | |
| 		 * read lock just before
 | |
| 		 */
 | |
| 		if (do_lock(F_SETLK, (short)F_WRLCK, (short)0, 10, 5) < 0)
 | |
| 			tst_resm(TFAIL | TERRNO, "fcntl on file failed");
 | |
| 
 | |
| 		if (do_lock(F_SETLK, (short)F_RDLCK, (short)0, 5, 5) < 0)
 | |
| 			tst_resm(TFAIL | TERRNO, "fcntl on file failed");
 | |
| 
 | |
| 		/*
 | |
| 		 * Test the read lock
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 0, 0);
 | |
| 		compare_lock(&tl, (short)F_RDLCK, (short)0, 5, 5, parent_pid);
 | |
| 
 | |
| 		/*
 | |
| 		 * Test the write lock.
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 10, 0);
 | |
| 		compare_lock(&tl, (short)F_WRLCK, (short)0, 10, 5, parent_pid);
 | |
| 
 | |
| 		/*
 | |
| 		 * Test to make sure the rest of the file is unlocked.
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 15, 0);
 | |
| 		compare_lock(&tl, (short)F_UNLCK, (short)0, 15, 0, 0);
 | |
| 
 | |
| 		/*
 | |
| 		 * remove all the locks set above
 | |
| 		 */
 | |
| 		unlock_file();
 | |
| 
 | |
| 		tst_resm(TINFO, "Exit block 2");
 | |
| 
 | |
| /* //block3: */
 | |
| 		tst_resm(TINFO, "Enter block 3");
 | |
| 
 | |
| 		/*
 | |
| 		 * Set a write lock in the middle and a read lock that
 | |
| 		 * ends at the first byte of the write lock
 | |
| 		 */
 | |
| 		if (do_lock(F_SETLK, (short)F_WRLCK, (short)0, 10, 5) < 0)
 | |
| 			tst_resm(TFAIL | TERRNO, "fcntl on file failed");
 | |
| 
 | |
| 		if (do_lock(F_SETLK, (short)F_RDLCK, (short)0, 5, 6) < 0)
 | |
| 			tst_resm(TFAIL | TERRNO, "fcntl on file failed");
 | |
| 
 | |
| 		/*
 | |
| 		 * Test read lock
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 0, 0);
 | |
| 		compare_lock(&tl, (short)F_RDLCK, (short)0, 5, 6, parent_pid);
 | |
| 
 | |
| 		/*
 | |
| 		 * Test write lock
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 11, 0);
 | |
| 		compare_lock(&tl, (short)F_WRLCK, (short)0, 11, 4, parent_pid);
 | |
| 
 | |
| 		/*
 | |
| 		 * Test to make sure the rest of the file is unlocked.
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 15, 0);
 | |
| 		compare_lock(&tl, (short)F_UNLCK, (short)0, 15, 0, 0);
 | |
| 
 | |
| 		/*
 | |
| 		 * remove all the locks set above
 | |
| 		 */
 | |
| 		unlock_file();
 | |
| 
 | |
| 		tst_resm(TINFO, "Exit block 3");
 | |
| 
 | |
| /* //block4: */
 | |
| 		tst_resm(TINFO, "Enter block 4");
 | |
| 
 | |
| 		/*
 | |
| 		 * Set a write lock on the middle of the file and a read
 | |
| 		 * lock that overlaps the front of the write.
 | |
| 		 */
 | |
| 		if (do_lock(F_SETLK, (short)F_WRLCK, (short)0, 10, 5) < 0)
 | |
| 			tst_resm(TFAIL | TERRNO, "fcntl on file failed");
 | |
| 
 | |
| 		if (do_lock(F_SETLK, (short)F_RDLCK, (short)0, 5, 8) < 0)
 | |
| 			tst_resm(TFAIL | TERRNO, "fcntl on file failed");
 | |
| 
 | |
| 		/*
 | |
| 		 * Test the read lock
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 5, 0);
 | |
| 		compare_lock(&tl, (short)F_RDLCK, (short)0, 5, 8, parent_pid);
 | |
| 
 | |
| 		/*
 | |
| 		 * Test the write lock
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 13, 0);
 | |
| 		compare_lock(&tl, (short)F_WRLCK, (short)0, 13, 2, parent_pid);
 | |
| 
 | |
| 		/*
 | |
| 		 * Test to make sure the rest of the file is unlocked.
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 15, 0);
 | |
| 		compare_lock(&tl, (short)F_UNLCK, (short)0, 15, 0, 0);
 | |
| 
 | |
| 		/*
 | |
| 		 * remove all the locks set above
 | |
| 		 */
 | |
| 		unlock_file();
 | |
| 
 | |
| 		tst_resm(TINFO, "Exit block 4");
 | |
| 
 | |
| /* //block5: */
 | |
| 		tst_resm(TINFO, "Enter block 5");
 | |
| 
 | |
| 		/*
 | |
| 		 * Set a write lock in the middle of a file and a read
 | |
| 		 * lock in the middle of it
 | |
| 		 */
 | |
| 		if (do_lock(F_SETLK, (short)F_WRLCK, (short)0, 10, 10) < 0)
 | |
| 			tst_resm(TFAIL | TERRNO, "fcntl on file failed");
 | |
| 
 | |
| 		if (do_lock(F_SETLK, (short)F_RDLCK, (short)0, 13, 5) < 0)
 | |
| 			tst_resm(TFAIL | TERRNO, "fcntl on file failed");
 | |
| 
 | |
| 		/*
 | |
| 		 * Test the first write lock
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 0, 0);
 | |
| 		compare_lock(&tl, (short)F_WRLCK, (short)0, 10, 3, parent_pid);
 | |
| 
 | |
| 		/*
 | |
| 		 * Test the read lock
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 13, 0);
 | |
| 		compare_lock(&tl, (short)F_RDLCK, (short)0, 13, 5, parent_pid);
 | |
| 
 | |
| 		/*
 | |
| 		 * Test the second write lock
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 18, 0);
 | |
| 		compare_lock(&tl, (short)F_WRLCK, (short)0, 18, 2, parent_pid);
 | |
| 
 | |
| 		/*
 | |
| 		 * Test to make sure the rest of the file is unlocked
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 20, 0);
 | |
| 		compare_lock(&tl, (short)F_UNLCK, (short)0, 20, 0, 0);
 | |
| 
 | |
| 		/*
 | |
| 		 * remove all the locks set above.
 | |
| 		 */
 | |
| 		unlock_file();
 | |
| 		tst_resm(TINFO, "Exit block 5");
 | |
| 
 | |
| /* //block6: */
 | |
| 		tst_resm(TINFO, "Enter block 6");
 | |
| 		/*
 | |
| 		 * Set a write lock in the middle of the file and a read
 | |
| 		 * lock that overlaps the end
 | |
| 		 */
 | |
| 		if (do_lock(F_SETLK, (short)F_WRLCK, (short)0, 10, 5) < 0)
 | |
| 			tst_resm(TFAIL | TERRNO, "fcntl on file failed");
 | |
| 
 | |
| 		/*
 | |
| 		 * Set a read lock on the whole file
 | |
| 		 */
 | |
| 		if (do_lock(F_SETLK, (short)F_RDLCK, (short)0, 13, 5) < 0)
 | |
| 			tst_resm(TFAIL | TERRNO, "fcntl on file failed");
 | |
| 
 | |
| 		/*
 | |
| 		 * Test the write lock
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 0, 0);
 | |
| 		compare_lock(&tl, (short)F_WRLCK, (short)0, 10, 3, parent_pid);
 | |
| 
 | |
| 		/*
 | |
| 		 * Test the read lock
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 13, 0);
 | |
| 		compare_lock(&tl, (short)F_RDLCK, (short)0, 13, 5, parent_pid);
 | |
| 
 | |
| 		/*
 | |
| 		 * Test to make sure the rest of the file is unlocked
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 18, 0);
 | |
| 		compare_lock(&tl, (short)F_UNLCK, (short)0, 18, 0, 0);
 | |
| 
 | |
| 		/*
 | |
| 		 * remove all the locks set above
 | |
| 		 */
 | |
| 		unlock_file();
 | |
| 
 | |
| 		tst_resm(TINFO, "Exit block 6");
 | |
| 
 | |
| /* //block7: */
 | |
| 		tst_resm(TINFO, "Enter block 7");
 | |
| 
 | |
| 		/*
 | |
| 		 * Set a write lock in the middle of the file and a read
 | |
| 		 * lock starting at the last byte of the write lock
 | |
| 		 */
 | |
| 		if (do_lock(F_SETLK, (short)F_WRLCK, (short)0, 10, 5) < 0)
 | |
| 			tst_resm(TFAIL | TERRNO, "fcntl on file failed");
 | |
| 
 | |
| 		/*
 | |
| 		 * Set a read lock on the whole file.
 | |
| 		 */
 | |
| 		if (do_lock(F_SETLK, (short)F_RDLCK, (short)0, 14, 5) < 0)
 | |
| 			tst_resm(TFAIL | TERRNO, "fcntl on file failed");
 | |
| 
 | |
| 		/*
 | |
| 		 * Test write lock
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 0, 0);
 | |
| 		compare_lock(&tl, (short)F_WRLCK, (short)0, 10, 4, parent_pid);
 | |
| 
 | |
| 		/*
 | |
| 		 * Test the read lock
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 14, 0);
 | |
| 		compare_lock(&tl, (short)F_RDLCK, (short)0, 14, 5, parent_pid);
 | |
| 
 | |
| 		/*
 | |
| 		 * Test to make sure the end of the file is unlocked
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 19, 0);
 | |
| 		compare_lock(&tl, (short)F_UNLCK, (short)0, 19, 0, 0);
 | |
| 
 | |
| 		/*
 | |
| 		 * remove all the locks set above
 | |
| 		 */
 | |
| 		unlock_file();
 | |
| 
 | |
| 		tst_resm(TINFO, "Exit block 7");
 | |
| 
 | |
| /* //block8: */
 | |
| 		tst_resm(TINFO, "Enter block 8");
 | |
| 
 | |
| 		/*
 | |
| 		 * Set a write lock in the middle of the file and a read
 | |
| 		 * lock that starts just after the last byte of the
 | |
| 		 * write lock.
 | |
| 		 */
 | |
| 		if (do_lock(F_SETLK, (short)F_WRLCK, (short)0, 10, 5) < 0)
 | |
| 			tst_resm(TFAIL | TERRNO, "fcntl on file failed");
 | |
| 
 | |
| 		/*
 | |
| 		 * Set a read lock on the whole file
 | |
| 		 */
 | |
| 		if (do_lock(F_SETLK, (short)F_RDLCK, (short)0, 15, 5) < 0)
 | |
| 			tst_resm(TFAIL | TERRNO, "fcntl on file failed");
 | |
| 
 | |
| 		/*
 | |
| 		 * Test the write lock
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 0, 0);
 | |
| 		compare_lock(&tl, (short)F_WRLCK, (short)0, 10, 5, parent_pid);
 | |
| 
 | |
| 		/*
 | |
| 		 * Test the read lock
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 15, 0);
 | |
| 		compare_lock(&tl, (short)F_RDLCK, (short)0, 15, 5, parent_pid);
 | |
| 
 | |
| 		/*
 | |
| 		 * Test to make sure the rest of the file is unlocked
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 20, 0);
 | |
| 		compare_lock(&tl, (short)F_UNLCK, (short)0, 20, 0, 0);
 | |
| 
 | |
| 		/*
 | |
| 		 * remove all the locks set above
 | |
| 		 */
 | |
| 		unlock_file();
 | |
| 
 | |
| 		tst_resm(TINFO, "Exit block 8");
 | |
| 
 | |
| /* //block9: */
 | |
| 		tst_resm(TINFO, "Enter block 9");
 | |
| 
 | |
| 		/*
 | |
| 		 * Set a write lock at the middle of the file and a read
 | |
| 		 * lock that starts past the end of the write lock.
 | |
| 		 */
 | |
| 		if (do_lock(F_SETLK, (short)F_WRLCK, (short)0, 10, 5) < 0)
 | |
| 			tst_resm(TFAIL | TERRNO, "fcntl on file failed");
 | |
| 
 | |
| 		if (do_lock(F_SETLK, (short)F_RDLCK, (short)0, 16, 5) < 0)
 | |
| 			tst_resm(TFAIL | TERRNO, "fcntl on file failed");
 | |
| 
 | |
| 		/*
 | |
| 		 * Test the write lock
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 0, 0);
 | |
| 		compare_lock(&tl, (short)F_WRLCK, (short)0, 10, 5, parent_pid);
 | |
| 
 | |
| 		/*
 | |
| 		 * Test that byte in between is unlocked
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 15, 1);
 | |
| 		compare_lock(&tl, (short)F_UNLCK, (short)0, 15, 1, 0);
 | |
| 
 | |
| 		/*
 | |
| 		 * Test the read lock
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 16, 0);
 | |
| 		compare_lock(&tl, (short)F_RDLCK, (short)0, 16, 5, parent_pid);
 | |
| 
 | |
| 		/*
 | |
| 		 * Test to make sure the rest of the file is unlocked
 | |
| 		 */
 | |
| 		do_test(&tl, (short)F_WRLCK, (short)0, 21, 0);
 | |
| 		compare_lock(&tl, (short)F_UNLCK, (short)0, 21, 0, 0);
 | |
| 
 | |
| 		/*
 | |
| 		 * remove all the locks set above
 | |
| 		 */
 | |
| 		unlock_file();
 | |
| 
 | |
| 		tst_resm(TINFO, "Exit block 9");
 | |
| 
 | |
| 		stop_child();
 | |
| 		SAFE_CLOSE(cleanup, fd);
 | |
| 	}
 | |
| 	cleanup();
 | |
| 	tst_exit();
 | |
| }
 |