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#include <fcntl.h>
#include <unistd.h>
#include <time.h>
#include <limits.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <glusterfs/api/glfs.h>
#include <glusterfs/api/glfs-handles.h>
#include <sys/wait.h>
#include <stdbool.h>
int gfapi = 1;
#define LOG_ERR(func, ret) do { \
if (ret != 0) { \
fprintf (stderr, "%s : returned error %d (%s)\n", \
func, ret, strerror (errno)); \
goto out; \
} else { \
fprintf (stderr, "%s : returned %d\n", func, ret); \
} \
} while (0)
char lownera[8] = "lownera", lownerb[8] = "lownerb";
char lownerc[8] = "lownerc";
int lock_test (glfs_fd_t *glfd1, glfs_fd_t *glfd2, bool should_fail,
int l1_start, int l1_len, char *l1_owner, int lo1_len,
int l2_start, int l2_len, char *l2_owner, int lo2_len)
{
int ret = -1, f_ret = -1;
struct flock lock1 = {0, }, lock2 = {0, };
lock1:
if (!glfd1)
goto lock2;
/* lock on glfd1 */
lock1.l_type = F_WRLCK;
lock1.l_whence = SEEK_SET;
lock1.l_start = l1_start;
lock1.l_len = l1_len;
ret = glfd_set_lk_owner (glfd1, l1_owner, lo1_len);
LOG_ERR ("glfd_set_lk_owner on glfd1", ret);
ret = glfs_posix_lock (glfd1, F_SETLK, &lock1);
LOG_ERR ("glfs_posix_lock on glfd1", ret);
lock2:
if (!glfd2)
goto out;
/* lock on glfd2 */
lock2.l_type = F_WRLCK;
lock2.l_whence = SEEK_SET;
lock2.l_start = l2_start;
lock2.l_len = l2_len;
ret = glfd_set_lk_owner (glfd2, l2_owner, lo2_len);
LOG_ERR ("glfd_set_lk_owner on glfd2", ret);
ret = glfs_posix_lock (glfd2, F_SETLK, &lock2);
if (should_fail && ret) {
f_ret = 0;
} else if (!ret && !should_fail) {
f_ret = 0;
} else {
f_ret = -1;
}
out:
fprintf (stderr, "Lock test on glfd1 (start(%d), len(%d),"
" lk_owner(%s)) and glfd2 (start(%d), len(%d), "
"lk_owner(%s)) - expected(%s) - result(%s)\n",
l1_start, l1_len, l1_owner, l2_start, l2_len, l2_owner,
(should_fail ? "FAIL" : "SUCCESS"),
(ret ? "FAIL" : "SUCCESS"));
return f_ret;
}
int
main (int argc, char *argv[])
{
glfs_t *fs = NULL;
int ret = 0, i, status = 0;
glfs_fd_t *fd1 = NULL;
glfs_fd_t *fd2 = NULL;
glfs_fd_t *fd3 = NULL;
char *filename = "file_tmp";
char *volname = NULL;
char *logfile = NULL;
char *hostname = NULL;
if (argc != 4) {
fprintf (stderr, "Invalid argument\n");
exit(1);
}
hostname = argv[1];
volname = argv[2];
logfile = argv[3];
fs = glfs_new (volname);
if (!fs) {
fprintf (stderr, "glfs_new: returned NULL\n");
return -1;
}
ret = glfs_set_volfile_server (fs, "tcp", hostname, 24007);
LOG_ERR("glfs_set_volfile_server", ret);
ret = glfs_set_logging (fs, logfile, 7);
LOG_ERR("glfs_set_logging", ret);
ret = glfs_init (fs);
LOG_ERR("glfs_init", ret);
fd1 = glfs_creat(fs, filename, O_RDWR|O_SYNC, 0644);
if (fd1 <= 0) {
ret = -1;
LOG_ERR ("glfs_creat", ret);
}
fprintf (stderr, "glfs-create fd1 - %d\n", fd1);
fd2 = glfs_dup(fd1);
fprintf (stderr, "glfs-dup fd2 - %d\n", fd2);
fd3 = glfs_open(fs, filename, O_RDWR|O_SYNC);
if (fd2 <= 0) {
ret = -1;
LOG_ERR ("glfs_open", ret);
}
fprintf (stderr, "glfs-open fd3 - %d\n", fd3);
/* TEST 1: Conflicting ranges, same lk_owner
* lock1 (0, 10, lownera)
* lock2 (5, 10, lownera)
* Expected: should not fail but get merged
*/
ret = lock_test (fd1, fd2, false, 0, 10, lownera, 8,
5, 10, lownera, 8);
LOG_ERR ("==== glfs_lock_test_1", ret);
/* TEST 2: Conflicting ranges, different lk_owner
* lock1 (0, 10, lownera) - already taken
* lock2 (5, 10, lownerb)
* Expected: should fail and not get merged
*/
ret = lock_test (NULL, fd2, true, 0, 10, lownera, 8,
5, 10, lownerb, 8);
LOG_ERR ("==== glfs_lock_test_2", ret);
/* TEST 3: Different ranges, same lk_owner
* lock1 (0, 10, lownera) - already taken
* lock2 (30, 10, lownera)
* Expected: should not fail
*/
ret = lock_test (NULL, fd2, false, 0, 10, lownera, 8,
30, 10, lownera, 8);
LOG_ERR ("==== glfs_lock_test_3", ret);
/* TEST 4: Conflicting ranges, different lk_owner
* lock1 (0, 10, lownera) - already taken
* lock2 (50, 10, lownerb)
* Expected: should not fail
*/
ret = lock_test (NULL, fd2, false, 0, 10, lownera, 8,
50, 10, lownerb, 8);
LOG_ERR ("==== glfs_lock_test_4", ret);
/* TEST 5: Close fd1 & retry TEST2
* lock1 (not applicable)
* lock2 (5, 10, lownerb)
* Expected: should succeed now
*/
ret = glfs_close(fd1);
LOG_ERR ("glfs_close", ret);
ret = lock_test (NULL, fd2, false, 0, 10, lownera, 8,
5, 10, lownerb, 8);
LOG_ERR ("==== glfs_lock_test_5", ret);
/* TEST 6: Check closing fd1 doesn't flush fd2 locks
* retry TEST 4 but with fd2 and fd3.
* lock1 (50, 10, lownerb) - already taken
* lock2 (55, 10, lownerc)
* Expected: should fail
*/
ret = lock_test (NULL, fd3, true, 50, 10, lownerb, 8,
55, 10, lownerc, 8);
LOG_ERR ("==== glfs_lock_test_6", ret);
err:
ret = glfs_close(fd2);
LOG_ERR ("glfs_close", ret);
ret = glfs_close(fd3);
LOG_ERR ("glfs_close", ret);
out:
if (fs) {
ret = glfs_fini(fs);
fprintf (stderr, "glfs_fini(fs) returned %d\n", ret);
}
if (ret)
exit(1);
exit(0);
}
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