def _maybe_register_license(path=None):
"""Registers the MuJoCo license if not already registered.
Args:
path: Optional custom path to license key file.
Raises:
Error: If the license could not be registered.
"""
with _REGISTRATION_LOCK:
global _REGISTERED
if not _REGISTERED:
if path is None:
path = util.get_mjkey_path()
# TODO(b/176220357): Repeatedly activating a trial license results in
# errors (for example this could happen if
# `mj_activate` was already called by another library
# within the same process). To avoid such errors we
# unconditionally deactivate any active licenses before
# calling `mj_activate`.
mjlib.mj_deactivate()
result = mjlib.mj_activate(util.to_binary_string(path))
if result == 1:
_REGISTERED = True
# Internal analytics of mj_activate.
elif result == 0:
raise Error("Could not register license.")
else:
raise Error(
"Unknown registration error (code: {})".format(result))
def _maybe_register_license(path=None):
"""Registers the MuJoCo license if not already registered.
Args:
path: Optional custom path to license key file.
Raises:
Error: If the license could not be registered.
"""
global _REGISTERED
if not _REGISTERED:
if path is None:
path = util.get_mjkey_path()
result = mjlib.mj_activate(util.to_binary_string(path))
if result == 1:
_REGISTERED = True
elif result == 0:
raise Error("Could not register license.")
else:
raise Error("Unknown registration error (code: {})".format(result))