Lock*
IxManager_make_snapshot_read_lock(IndexManager *self, const CharBuf *filename)
{
ZombieCharBuf *lock_name = ZCB_WRAP(filename);
LockFactory *lock_factory = S_obtain_lock_factory(self);
if ( !CB_Starts_With_Str(filename, "snapshot_", 9)
|| !CB_Ends_With_Str(filename, ".json", 5)
) {
THROW(ERR, "Not a snapshot filename: %o", filename);
}
// Truncate ".json" from end of snapshot file name.
ZCB_Chop(lock_name, sizeof(".json") - 1);
return LockFact_Make_Shared_Lock(lock_factory, (CharBuf*)lock_name, 1000, 100);
}
Lock*
IxManager_Make_Snapshot_Read_Lock_IMP(IndexManager *self,
String *filename) {
LockFactory *lock_factory = S_obtain_lock_factory(self);
if (!Str_Starts_With_Utf8(filename, "snapshot_", 9)
|| !Str_Ends_With_Utf8(filename, ".json", 5)
) {
THROW(ERR, "Not a snapshot filename: %o", filename);
}
// Truncate ".json" from end of snapshot file name.
size_t lock_name_len = Str_Length(filename) - (sizeof(".json") - 1);
String *lock_name = Str_SubString(filename, 0, lock_name_len);
Lock *lock = LockFact_Make_Shared_Lock(lock_factory, lock_name, 1000, 100);
DECREF(lock_name);
return lock;
}
