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#include <unistd.h>
#include <limits.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/inotify.h>
#include "zdtmtst.h"
const char *test_doc = "Check inotify does not have trash in queue after c/r";
const char *test_author = "Pavel Tikhomirov <ptikhomirov@virtuozzo.com>";
char *dirname;
TEST_OPTION(dirname, string, "directory name", 1);
#define TEST_FILE "inotify-testfile"
#define BUFF_SIZE ((sizeof(struct inotify_event) + PATH_MAX))
static int inotify_read_events(int inotify_fd, unsigned int *n)
{
struct inotify_event *event;
char buf[BUFF_SIZE * 8];
int ret, off;
*n = 0;
while (1) {
ret = read(inotify_fd, buf, sizeof(buf));
if (ret < 0) {
if (errno != EAGAIN) {
pr_perror("Can't read inotify queue");
return -1;
} else {
ret = 0;
break;
}
} else if (ret == 0)
break;
for (off = 0; off < ret; (*n)++, off += sizeof(*event) + event->len) {
event = (void *)(buf + off);
test_msg("Event %#10x\n", event->mask);
}
}
test_msg("Read %u events\n", *n);
return ret;
}
int main (int argc, char *argv[])
{
unsigned int mask = IN_ALL_EVENTS;
char test_file_path[PATH_MAX];
int fd, ifd, ifd2, ret;
unsigned int n;
test_init(argc, argv);
if (mkdir(dirname, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH)) {
pr_perror("Can't create directory %s", dirname);
return 1;
}
snprintf(test_file_path, sizeof(test_file_path), "%s/%s", dirname, TEST_FILE);
fd = open(test_file_path, O_CREAT, 0644);
if (fd < 0) {
pr_perror("Failed to create %s", test_file_path);
return 1;
}
close(fd);
ifd = inotify_init1(IN_NONBLOCK);
if (ifd < 0) {
pr_perror("Failed inotify_init");
return 1;
}
ifd2 = inotify_init1(IN_NONBLOCK);
if (ifd2 < 0) {
pr_perror("Failed inotify_init");
return 1;
}
if (inotify_add_watch(ifd, test_file_path, mask) < 0) {
pr_perror("Failed inotify_add_watch");
return 1;
}
if (inotify_add_watch(ifd2, test_file_path, mask) < 0) {
pr_perror("Failed inotify_add_watch");
return 1;
}
test_daemon();
test_waitsig();
ret = inotify_read_events(ifd, &n);
if (ret < 0) {
fail("Failed to read inotify events");
return 1;
} else if (n != 0) {
fail("Found %d unexpected inotify events", n);
return 1;
}
ret = inotify_read_events(ifd, &n);
if (ret < 0) {
fail("Failed to read inotify events");
return 1;
} else if (n != 0) {
fail("Found %d unexpected inotify events", n);
return 1;
}
close(ifd);
close(ifd2);
unlink(test_file_path);
pass();
return 0;
}
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