--- /dev/null
+#include "../private.h" // for ntdb_fcntl_unlock
+#include "../ntdb.h"
+#include "tap-interface.h"
+#include <errno.h>
+#include "logging.h"
+#include "helpapi-external-agent.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 trav_err;
+static int trav(struct ntdb_context *ntdb, NTDB_DATA k, NTDB_DATA d, int *terr)
+{
+ *terr = trav_err;
+ return 0;
+}
+
+int main(int argc, char *argv[])
+{
+ unsigned int i;
+ struct ntdb_context *ntdb;
+ int flags[] = { NTDB_DEFAULT, NTDB_NOMMAP,
+ NTDB_CONVERT, NTDB_NOMMAP|NTDB_CONVERT };
+ union ntdb_attribute lock_attr;
+ NTDB_DATA key = ntdb_mkdata("key", 3);
+ NTDB_DATA data = ntdb_mkdata("data", 4);
+ int lock_err;
+
+ lock_attr.base.attr = NTDB_ATTRIBUTE_FLOCK;
+ lock_attr.base.next = &tap_log_attr;
+ lock_attr.flock.lock = mylock;
+ lock_attr.flock.unlock = ntdb_fcntl_unlock;
+ lock_attr.flock.data = &lock_err;
+
+ plan_tests(sizeof(flags) / sizeof(flags[0]) * 81);
+
+ for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
+ NTDB_DATA d;
+
+ /* Nonblocking open; expect no error message. */
+ lock_err = EAGAIN;
+ ntdb = ntdb_open("run-82-lockattr.ntdb", flags[i]|MAYBE_NOSYNC,
+ O_RDWR|O_CREAT|O_TRUNC, 0600, &lock_attr);
+ ok(errno == lock_err, "Errno is %u", errno);
+ ok1(!ntdb);
+ ok1(tap_log_messages == 0);
+
+ lock_err = EINTR;
+ ntdb = ntdb_open("run-82-lockattr.ntdb", flags[i]|MAYBE_NOSYNC,
+ O_RDWR|O_CREAT|O_TRUNC, 0600, &lock_attr);
+ ok(errno == lock_err, "Errno is %u", errno);
+ ok1(!ntdb);
+ ok1(tap_log_messages == 0);
+
+ /* Forced fail open. */
+ lock_err = ENOMEM;
+ ntdb = ntdb_open("run-82-lockattr.ntdb", flags[i]|MAYBE_NOSYNC,
+ O_RDWR|O_CREAT|O_TRUNC, 0600, &lock_attr);
+ ok1(errno == lock_err);
+ ok1(!ntdb);
+ ok1(tap_log_messages == 1);
+ tap_log_messages = 0;
+
+ lock_err = 0;
+ ntdb = ntdb_open("run-82-lockattr.ntdb", flags[i]|MAYBE_NOSYNC,
+ O_RDWR|O_CREAT|O_TRUNC, 0600, &lock_attr);
+ if (!ok1(ntdb))
+ continue;
+ ok1(tap_log_messages == 0);
+
+ /* Nonblocking store. */
+ lock_err = EAGAIN;
+ ok1(ntdb_store(ntdb, key, data, NTDB_REPLACE) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 0);
+ lock_err = EINTR;
+ ok1(ntdb_store(ntdb, key, data, NTDB_REPLACE) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 0);
+ lock_err = ENOMEM;
+ ok1(ntdb_store(ntdb, key, data, NTDB_REPLACE) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 1);
+ tap_log_messages = 0;
+
+ /* Nonblocking fetch. */
+ lock_err = EAGAIN;
+ ok1(!ntdb_exists(ntdb, key));
+ ok1(tap_log_messages == 0);
+ lock_err = EINTR;
+ ok1(!ntdb_exists(ntdb, key));
+ ok1(tap_log_messages == 0);
+ lock_err = ENOMEM;
+ ok1(!ntdb_exists(ntdb, key));
+ ok1(tap_log_messages == 1);
+ tap_log_messages = 0;
+
+ lock_err = EAGAIN;
+ ok1(ntdb_fetch(ntdb, key, &d) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 0);
+ lock_err = EINTR;
+ ok1(ntdb_fetch(ntdb, key, &d) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 0);
+ lock_err = ENOMEM;
+ ok1(ntdb_fetch(ntdb, key, &d) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 1);
+ tap_log_messages = 0;
+
+ /* Nonblocking delete. */
+ lock_err = EAGAIN;
+ ok1(ntdb_delete(ntdb, key) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 0);
+ lock_err = EINTR;
+ ok1(ntdb_delete(ntdb, key) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 0);
+ lock_err = ENOMEM;
+ ok1(ntdb_delete(ntdb, key) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 1);
+ tap_log_messages = 0;
+
+ /* Nonblocking locks. */
+ lock_err = EAGAIN;
+ ok1(ntdb_chainlock(ntdb, key) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 0);
+ lock_err = EINTR;
+ ok1(ntdb_chainlock(ntdb, key) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 0);
+ lock_err = ENOMEM;
+ ok1(ntdb_chainlock(ntdb, key) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 1);
+ tap_log_messages = 0;
+
+ lock_err = EAGAIN;
+ ok1(ntdb_chainlock_read(ntdb, key) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 0);
+ lock_err = EINTR;
+ ok1(ntdb_chainlock_read(ntdb, key) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 0);
+ lock_err = ENOMEM;
+ ok1(ntdb_chainlock_read(ntdb, key) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 1);
+ tap_log_messages = 0;
+
+ lock_err = EAGAIN;
+ ok1(ntdb_lockall(ntdb) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 0);
+ lock_err = EINTR;
+ ok1(ntdb_lockall(ntdb) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 0);
+ lock_err = ENOMEM;
+ ok1(ntdb_lockall(ntdb) == NTDB_ERR_LOCK);
+ /* This actually does divide and conquer. */
+ ok1(tap_log_messages > 0);
+ tap_log_messages = 0;
+
+ lock_err = EAGAIN;
+ ok1(ntdb_lockall_read(ntdb) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 0);
+ lock_err = EINTR;
+ ok1(ntdb_lockall_read(ntdb) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 0);
+ lock_err = ENOMEM;
+ ok1(ntdb_lockall_read(ntdb) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages > 0);
+ tap_log_messages = 0;
+
+ /* Nonblocking traverse; go nonblock partway through. */
+ lock_err = 0;
+ ok1(ntdb_store(ntdb, key, data, NTDB_REPLACE) == 0);
+ /* Need two entries to ensure two lock attempts! */
+ ok1(ntdb_store(ntdb, ntdb_mkdata("key2", 4), data,
+ NTDB_REPLACE) == 0);
+ trav_err = EAGAIN;
+ ok1(ntdb_traverse(ntdb, trav, &lock_err) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 0);
+ trav_err = EINTR;
+ lock_err = 0;
+ ok1(ntdb_traverse(ntdb, trav, &lock_err) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 0);
+ trav_err = ENOMEM;
+ lock_err = 0;
+ ok1(ntdb_traverse(ntdb, trav, &lock_err) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 1);
+ tap_log_messages = 0;
+
+ /* Nonblocking transactions. */
+ lock_err = EAGAIN;
+ ok1(ntdb_transaction_start(ntdb) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 0);
+ lock_err = EINTR;
+ ok1(ntdb_transaction_start(ntdb) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 0);
+ lock_err = ENOMEM;
+ ok1(ntdb_transaction_start(ntdb) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 1);
+ tap_log_messages = 0;
+
+ /* Nonblocking transaction prepare. */
+ lock_err = 0;
+ ok1(ntdb_transaction_start(ntdb) == 0);
+ ok1(ntdb_delete(ntdb, key) == 0);
+
+ lock_err = EAGAIN;
+ ok1(ntdb_transaction_prepare_commit(ntdb) == NTDB_ERR_LOCK);
+ ok1(tap_log_messages == 0);
+
+ lock_err = 0;
+ ok1(ntdb_transaction_prepare_commit(ntdb) == 0);
+ ok1(ntdb_transaction_commit(ntdb) == 0);
+
+ /* And the transaction was committed, right? */
+ ok1(!ntdb_exists(ntdb, key));
+ ntdb_close(ntdb);
+ ok1(tap_log_messages == 0);
+ }
+ return exit_status();
+}
projects / ccan / blobdiff