void test_1(void)
{
int fd;
pid_t pid;
uint64_t i;
uint64_t block;
uint64_t actual_size;
char name[256];
char old[16];
char buf[16];
off_t old_len;
char dir_name[256];
/* Create a directory to test in */
pid = getpid();
tests_cat_pid(dir_name, "test_1_test_dir_", pid);
if (chdir(dir_name) == -1)
CHECK(mkdir(dir_name, 0777) != -1);
CHECK(chdir(dir_name) != -1);
/* Create a file that fills half the free space on the file system */
tests_create_file("big_file", tests_get_big_file_size(1,2));
CHECK(tests_count_files_in_dir(".") == 1);
fd = open("big_file", O_RDWR | tests_maybe_sync_flag());
CHECK(fd != -1);
CHECK(read(fd, old, 5) == 5);
CHECK(lseek(fd, 0, SEEK_SET) != (off_t) -1);
CHECK(write(fd,"start", 5) == 5);
CHECK(lseek(fd,0,SEEK_END) != (off_t) -1);
CHECK(write(fd, "end", 3) == 3);
tests_maybe_sync(fd);
/* Delete the file while it is still open */
tests_delete_file("big_file");
CHECK(tests_count_files_in_dir(".") == 0);
/* Create files to file up the file system */
for (block = 1000000, i = 1; ; block /= 10) {
while (i != 0) {
sprintf(name, "fill_up_%llu", i);
actual_size = tests_create_file(name, block);
if (actual_size != 0)
++i;
if (actual_size != block)
break;
}
if (block == 1)
break;
}
/* Check the big file */
CHECK(lseek(fd, 0, SEEK_SET) != (off_t) -1);
CHECK(read(fd, buf, 5) == 5);
CHECK(strncmp(buf, "start", 5) == 0);
CHECK(lseek(fd, -3, SEEK_END) != (off_t) -1);
CHECK(read(fd, buf, 3) == 3);
CHECK(strncmp(buf, "end", 3) == 0);
/* Check the other files and delete them */
i -= 1;
CHECK(tests_count_files_in_dir(".") == i);
for (; i > 0; --i) {
sprintf(name, "fill_up_%llu", i);
tests_check_filled_file(name);
tests_delete_file(name);
}
CHECK(tests_count_files_in_dir(".") == 0);
/* Check the big file again */
CHECK(lseek(fd, 0, SEEK_SET) != (off_t) -1);
CHECK(read(fd, buf, 5) == 5);
CHECK(strncmp(buf, "start", 5) == 0);
CHECK(lseek(fd, -3, SEEK_END) != (off_t) -1);
CHECK(read(fd, buf, 3) == 3);
CHECK(strncmp(buf, "end", 3) == 0);
CHECK(lseek(fd, 0, SEEK_SET) != (off_t) -1);
CHECK(write(fd,old, 5) == 5);
old_len = lseek(fd, -3, SEEK_END);
CHECK(old_len != (off_t) -1);
CHECK(ftruncate(fd,old_len) != -1);
tests_check_filled_file_fd(fd);
/* Close the big file*/
CHECK(close(fd) != -1);
CHECK(tests_count_files_in_dir(".") == 0);
CHECK(chdir("..") != -1);
CHECK(rmdir(dir_name) != -1);
}
static void orph(void)
{
pid_t pid;
unsigned i, j, k, n;
int fd, done, full;
int64_t repeat;
ssize_t sz;
char dir_name[256];
int fds[MAX_ORPHANS];
/* Create a directory to test in */
pid = getpid();
tests_cat_pid(dir_name, "orph_test_dir_", pid);
if (chdir(dir_name) == -1)
CHECK(mkdir(dir_name, 0777) != -1);
CHECK(chdir(dir_name) != -1);
repeat = tests_repeat_parameter;
for (;;) {
full = 0;
done = 0;
n = 0;
while (n + 100 < MAX_ORPHANS && !done) {
/* Make 100 more orphans */
for (i = 0; i < 100; i++) {
fd = tests_create_orphan(n + i);
if (fd < 0) {
done = 1;
if (errno == ENOSPC)
full = 1;
else if (errno != EMFILE)
CHECK(0);
errno = 0;
break;
}
fds[n + i] = fd;
}
if (!full) {
/* Write to orphans just created */
k = i;
for (i = 0; i < k; i++) {
if (tests_write_fragment_file(n + i,
fds[n+i],
0, 1000)
!= 1000) {
/*
* Out of space, so close
* remaining files
*/
for (j = i; j < k; j++)
CHECK(close(fds[n + j])
!= -1);
done = 1;
break;
}
}
}
if (!done)
CHECK(tests_count_files_in_dir(".") == 0);
n += i;
}
/* Check the data in the files */
for (i = 0; i < n; i++)
tests_check_fragment_file_fd(i, fds[i]);
if (!full && n) {
/* Ensure the file system is full */
n -= 1;
do {
sz = write(fds[n], fds, 4096);
if (sz == -1 && errno == ENOSPC) {
errno = 0;
break;
}
CHECK(sz >= 0);
} while (sz == 4096);
CHECK(close(fds[n]) != -1);
}
/* Check the data in the files */
for (i = 0; i < n; i++)
tests_check_fragment_file_fd(i, fds[i]);
/* 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);
}
/* Close orphans */
for (i = 0; i < n; i++)
CHECK(close(fds[i]) != -1);
/* Break if repeat count exceeded */
if (tests_repeat_parameter > 0 && --repeat <= 0)
break;
}
CHECK(tests_count_files_in_dir(".") == 0);
CHECK(chdir("..") != -1);
CHECK(rmdir(dir_name) != -1);
}
