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#include <ccan/tdb2/tdb.c>
#include <ccan/tdb2/open.c>
#include <ccan/tdb2/free.c>
#include <ccan/tdb2/lock.c>
#include <ccan/tdb2/io.c>
#include <ccan/tdb2/hash.c>
#include <ccan/tdb2/check.c>
#include <ccan/tdb2/transaction.c>
#include <ccan/tdb2/traverse.c>
#include <ccan/tap/tap.h>
#include "logging.h"
static int mylock(int fd, int rw, off_t off, off_t len, bool waitflag,
void *_err)
{
int *lock_err = _err;
struct flock fl;
int ret;
if (*lock_err) {
errno = *lock_err;
return -1;
}
do {
fl.l_type = rw;
fl.l_whence = SEEK_SET;
fl.l_start = off;
fl.l_len = len;
if (waitflag)
ret = fcntl(fd, F_SETLKW, &fl);
else
ret = fcntl(fd, F_SETLK, &fl);
} while (ret != 0 && errno == EINTR);
return ret;
}
static int myunlock(int fd, int rw, off_t off, off_t len, void *_err)
{
int *lock_err = _err;
struct flock fl;
int ret;
if (*lock_err) {
errno = *lock_err;
return -1;
}
do {
fl.l_type = F_UNLCK;
fl.l_whence = SEEK_SET;
fl.l_start = off;
fl.l_len = len;
ret = fcntl(fd, F_SETLKW, &fl);
} while (ret != 0 && errno == EINTR);
return ret;
}
static int trav_err;
static int trav(struct tdb_context *tdb, TDB_DATA k, TDB_DATA d, int *err)
{
*err = trav_err;
return 0;
}
int main(int argc, char *argv[])
{
unsigned int i;
struct tdb_context *tdb;
int flags[] = { TDB_DEFAULT, TDB_NOMMAP,
TDB_CONVERT, TDB_NOMMAP|TDB_CONVERT };
union tdb_attribute lock_attr;
struct tdb_data key = tdb_mkdata("key", 3);
struct tdb_data data = tdb_mkdata("data", 4);
int lock_err;
lock_attr.base.attr = TDB_ATTRIBUTE_FLOCK;
lock_attr.base.next = &tap_log_attr;
lock_attr.flock.lock = mylock;
lock_attr.flock.unlock = myunlock;
lock_attr.flock.data = &lock_err;
plan_tests(sizeof(flags) / sizeof(flags[0]) * 80);
for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
struct tdb_data d;
/* Nonblocking open; expect no error message. */
lock_err = EAGAIN;
tdb = tdb_open("run-82-lockattr.tdb", flags[i],
O_RDWR|O_CREAT|O_TRUNC, 0600, &lock_attr);
ok(errno == lock_err, "Errno is %u", errno);
ok1(!tdb);
ok1(tap_log_messages == 0);
lock_err = EINTR;
tdb = tdb_open("run-82-lockattr.tdb", flags[i],
O_RDWR|O_CREAT|O_TRUNC, 0600, &lock_attr);
ok(errno == lock_err, "Errno is %u", errno);
ok1(!tdb);
ok1(tap_log_messages == 0);
/* Forced fail open. */
lock_err = ENOMEM;
tdb = tdb_open("run-82-lockattr.tdb", flags[i],
O_RDWR|O_CREAT|O_TRUNC, 0600, &lock_attr);
ok1(errno == lock_err);
ok1(!tdb);
ok1(tap_log_messages == 1);
tap_log_messages = 0;
lock_err = 0;
tdb = tdb_open("run-82-lockattr.tdb", flags[i],
O_RDWR|O_CREAT|O_TRUNC, 0600, &lock_attr);
if (!ok1(tdb))
continue;
ok1(tap_log_messages == 0);
/* Nonblocking store. */
lock_err = EAGAIN;
ok1(tdb_store(tdb, key, data, TDB_REPLACE) == TDB_ERR_LOCK);
ok1(tap_log_messages == 0);
lock_err = EINTR;
ok1(tdb_store(tdb, key, data, TDB_REPLACE) == TDB_ERR_LOCK);
ok1(tap_log_messages == 0);
lock_err = ENOMEM;
ok1(tdb_store(tdb, key, data, TDB_REPLACE) == TDB_ERR_LOCK);
ok1(tap_log_messages == 1);
tap_log_messages = 0;
/* Nonblocking fetch. */
lock_err = EAGAIN;
ok1(!tdb_exists(tdb, key));
ok1(tap_log_messages == 0);
lock_err = EINTR;
ok1(!tdb_exists(tdb, key));
ok1(tap_log_messages == 0);
lock_err = ENOMEM;
ok1(!tdb_exists(tdb, key));
ok1(tap_log_messages == 1);
tap_log_messages = 0;
lock_err = EAGAIN;
ok1(tdb_fetch(tdb, key, &d) == TDB_ERR_LOCK);
ok1(tap_log_messages == 0);
lock_err = EINTR;
ok1(tdb_fetch(tdb, key, &d) == TDB_ERR_LOCK);
ok1(tap_log_messages == 0);
lock_err = ENOMEM;
ok1(tdb_fetch(tdb, key, &d) == TDB_ERR_LOCK);
ok1(tap_log_messages == 1);
tap_log_messages = 0;
/* Nonblocking delete. */
lock_err = EAGAIN;
ok1(tdb_delete(tdb, key) == TDB_ERR_LOCK);
ok1(tap_log_messages == 0);
lock_err = EINTR;
ok1(tdb_delete(tdb, key) == TDB_ERR_LOCK);
ok1(tap_log_messages == 0);
lock_err = ENOMEM;
ok1(tdb_delete(tdb, key) == TDB_ERR_LOCK);
ok1(tap_log_messages == 1);
tap_log_messages = 0;
/* Nonblocking locks. */
lock_err = EAGAIN;
ok1(tdb_chainlock(tdb, key) == TDB_ERR_LOCK);
ok1(tap_log_messages == 0);
lock_err = EINTR;
ok1(tdb_chainlock(tdb, key) == TDB_ERR_LOCK);
ok1(tap_log_messages == 0);
lock_err = ENOMEM;
ok1(tdb_chainlock(tdb, key) == TDB_ERR_LOCK);
ok1(tap_log_messages == 1);
tap_log_messages = 0;
lock_err = EAGAIN;
ok1(tdb_chainlock_read(tdb, key) == TDB_ERR_LOCK);
ok1(tap_log_messages == 0);
lock_err = EINTR;
ok1(tdb_chainlock_read(tdb, key) == TDB_ERR_LOCK);
ok1(tap_log_messages == 0);
lock_err = ENOMEM;
ok1(tdb_chainlock_read(tdb, key) == TDB_ERR_LOCK);
ok1(tap_log_messages == 1);
tap_log_messages = 0;
lock_err = EAGAIN;
ok1(tdb_lockall(tdb) == TDB_ERR_LOCK);
ok1(tap_log_messages == 0);
lock_err = EINTR;
ok1(tdb_lockall(tdb) == TDB_ERR_LOCK);
ok1(tap_log_messages == 0);
lock_err = ENOMEM;
ok1(tdb_lockall(tdb) == TDB_ERR_LOCK);
/* This actually does divide and conquer. */
ok1(tap_log_messages > 0);
tap_log_messages = 0;
lock_err = EAGAIN;
ok1(tdb_lockall_read(tdb) == TDB_ERR_LOCK);
ok1(tap_log_messages == 0);
lock_err = EINTR;
ok1(tdb_lockall_read(tdb) == TDB_ERR_LOCK);
ok1(tap_log_messages == 0);
lock_err = ENOMEM;
ok1(tdb_lockall_read(tdb) == TDB_ERR_LOCK);
ok1(tap_log_messages > 0);
tap_log_messages = 0;
/* Nonblocking traverse; go nonblock partway through. */
lock_err = 0;
ok1(tdb_store(tdb, key, data, TDB_REPLACE) == 0);
trav_err = EAGAIN;
ok1(tdb_traverse(tdb, trav, &lock_err) == TDB_ERR_LOCK);
ok1(tap_log_messages == 0);
trav_err = EINTR;
lock_err = 0;
ok1(tdb_traverse(tdb, trav, &lock_err) == TDB_ERR_LOCK);
ok1(tap_log_messages == 0);
trav_err = ENOMEM;
lock_err = 0;
ok1(tdb_traverse(tdb, trav, &lock_err) == TDB_ERR_LOCK);
ok1(tap_log_messages == 1);
tap_log_messages = 0;
/* Nonblocking transactions. */
lock_err = EAGAIN;
ok1(tdb_transaction_start(tdb) == TDB_ERR_LOCK);
ok1(tap_log_messages == 0);
lock_err = EINTR;
ok1(tdb_transaction_start(tdb) == TDB_ERR_LOCK);
ok1(tap_log_messages == 0);
lock_err = ENOMEM;
ok1(tdb_transaction_start(tdb) == TDB_ERR_LOCK);
ok1(tap_log_messages == 1);
tap_log_messages = 0;
/* Nonblocking transaction prepare. */
lock_err = 0;
ok1(tdb_transaction_start(tdb) == 0);
ok1(tdb_delete(tdb, key) == 0);
lock_err = EAGAIN;
ok1(tdb_transaction_prepare_commit(tdb) == TDB_ERR_LOCK);
ok1(tap_log_messages == 0);
lock_err = 0;
ok1(tdb_transaction_prepare_commit(tdb) == 0);
ok1(tdb_transaction_commit(tdb) == 0);
/* And the transaction was committed, right? */
ok1(!tdb_exists(tdb, key));
tdb_close(tdb);
ok1(tap_log_messages == 0);
}
return exit_status();
}
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