return ret;
}
+unsigned int tdb_get_flags(struct tdb_context *tdb)
+{
+ return tdb->flags;
+}
+
+void tdb_add_flag(struct tdb_context *tdb, unsigned flag)
+{
+ if (tdb->flags & TDB_INTERNAL) {
+ tdb_logerr(tdb, TDB_ERR_EINVAL, TDB_LOG_USE_ERROR,
+ "tdb_add_flag: internal db");
+ return;
+ }
+ switch (flag) {
+ case TDB_NOLOCK:
+ tdb->flags |= TDB_NOLOCK;
+ break;
+ case TDB_NOMMAP:
+ tdb->flags |= TDB_NOMMAP;
+ tdb_munmap(tdb);
+ break;
+ case TDB_NOSYNC:
+ tdb->flags |= TDB_NOSYNC;
+ break;
+ default:
+ tdb_logerr(tdb, TDB_ERR_EINVAL, TDB_LOG_USE_ERROR,
+ "tdb_add_flag: Unknown flag %u", flag);
+ }
+}
+
+void tdb_remove_flag(struct tdb_context *tdb, unsigned flag)
+{
+ if (tdb->flags & TDB_INTERNAL) {
+ tdb_logerr(tdb, TDB_ERR_EINVAL, TDB_LOG_USE_ERROR,
+ "tdb_remove_flag: internal db");
+ return;
+ }
+ switch (flag) {
+ case TDB_NOLOCK:
+ tdb->flags &= ~TDB_NOLOCK;
+ break;
+ case TDB_NOMMAP:
+ tdb->flags &= ~TDB_NOMMAP;
+ tdb_mmap(tdb);
+ break;
+ case TDB_NOSYNC:
+ tdb->flags &= ~TDB_NOSYNC;
+ break;
+ default:
+ tdb_logerr(tdb, TDB_ERR_EINVAL, TDB_LOG_USE_ERROR,
+ "tdb_remove_flag: Unknown flag %u", flag);
+ }
+}
+
const char *tdb_errorstr(enum TDB_ERROR ecode)
{
/* Gcc warns if you miss a case in the switch, so use that. */
enum tdb_summary_flags flags,
char **summary);
+
+/**
+ * tdb_get_flags - return the flags for a tdb
+ * @tdb: the tdb context returned from tdb_open()
+ *
+ * This returns the flags on the current tdb. Some of these are caused by
+ * the flags argument to tdb_open(), others (such as TDB_CONVERT) are
+ * intuited.
+ */
+unsigned int tdb_get_flags(struct tdb_context *tdb);
+
+/**
+ * tdb_add_flag - set a flag for a tdb
+ * @tdb: the tdb context returned from tdb_open()
+ * @flag: one of TDB_NOLOCK, TDB_NOMMAP or TDB_NOSYNC.
+ *
+ * You can use this to set a flag on the TDB. You cannot set these flags
+ * on a TDB_INTERNAL tdb.
+ */
+void tdb_add_flag(struct tdb_context *tdb, unsigned flag);
+
+/**
+ * tdb_remove_flag - unset a flag for a tdb
+ * @tdb: the tdb context returned from tdb_open()
+ * @flag: one of TDB_NOLOCK, TDB_NOMMAP or TDB_NOSYNC.
+ *
+ * You can use this to clear a flag on the TDB. You cannot clear flags
+ * on a TDB_INTERNAL tdb.
+ */
+void tdb_remove_flag(struct tdb_context *tdb, unsigned flag);
+
/**
* enum tdb_attribute_type - descriminator for union tdb_attribute.
*/
--- /dev/null
+#include <ccan/tdb2/tdb.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/traverse.c>
+#include <ccan/tdb2/transaction.c>
+#include <ccan/tap/tap.h>
+#include "logging.h"
+
+int main(int argc, char *argv[])
+{
+ unsigned int i;
+ struct tdb_context *tdb;
+ int flags[] = { TDB_INTERNAL, TDB_DEFAULT, TDB_NOMMAP,
+ TDB_INTERNAL|TDB_CONVERT, TDB_CONVERT,
+ TDB_NOMMAP|TDB_CONVERT };
+
+ plan_tests(87);
+ for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
+ tdb = tdb_open("run-add-remove-flags.tdb", flags[i],
+ O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
+ ok1(tdb);
+ if (!tdb)
+ continue;
+
+ ok1(tdb_get_flags(tdb) == tdb->flags);
+ tap_log_messages = 0;
+ tdb_add_flag(tdb, TDB_NOLOCK);
+ if (flags[i] & TDB_INTERNAL)
+ ok1(tap_log_messages == 1);
+ else {
+ ok1(tap_log_messages == 0);
+ ok1(tdb_get_flags(tdb) & TDB_NOLOCK);
+ }
+
+ tap_log_messages = 0;
+ tdb_add_flag(tdb, TDB_NOMMAP);
+ if (flags[i] & TDB_INTERNAL)
+ ok1(tap_log_messages == 1);
+ else {
+ ok1(tap_log_messages == 0);
+ ok1(tdb_get_flags(tdb) & TDB_NOMMAP);
+ ok1(tdb->map_ptr == NULL);
+ }
+
+ tap_log_messages = 0;
+ tdb_add_flag(tdb, TDB_NOSYNC);
+ if (flags[i] & TDB_INTERNAL)
+ ok1(tap_log_messages == 1);
+ else {
+ ok1(tap_log_messages == 0);
+ ok1(tdb_get_flags(tdb) & TDB_NOSYNC);
+ }
+
+ ok1(tdb_get_flags(tdb) == tdb->flags);
+
+ tap_log_messages = 0;
+ tdb_remove_flag(tdb, TDB_NOLOCK);
+ if (flags[i] & TDB_INTERNAL)
+ ok1(tap_log_messages == 1);
+ else {
+ ok1(tap_log_messages == 0);
+ ok1(!(tdb_get_flags(tdb) & TDB_NOLOCK));
+ }
+
+ tap_log_messages = 0;
+ tdb_remove_flag(tdb, TDB_NOMMAP);
+ if (flags[i] & TDB_INTERNAL)
+ ok1(tap_log_messages == 1);
+ else {
+ ok1(tap_log_messages == 0);
+ ok1(!(tdb_get_flags(tdb) & TDB_NOMMAP));
+ ok1(tdb->map_ptr != NULL);
+ }
+
+ tap_log_messages = 0;
+ tdb_remove_flag(tdb, TDB_NOSYNC);
+ if (flags[i] & TDB_INTERNAL)
+ ok1(tap_log_messages == 1);
+ else {
+ ok1(tap_log_messages == 0);
+ ok1(!(tdb_get_flags(tdb) & TDB_NOSYNC));
+ }
+
+ tdb_close(tdb);
+ }
+
+ ok1(tap_log_messages == 0);
+ return exit_status();
+}