Function fdf_dispatcher_seal 

pub unsafe extern "C" fn fdf_dispatcher_seal(
    dispatcher: *mut fdf_dispatcher_t,
    option: u32,
) -> zx_status_t

Removes an option set on the dispatcher during creation. The provided |option| parameter is removed from the |dispatcher| given. For example if the dispatcher was created with options that contained FDF_DISPATCHER_OPTION_ALLOW_SYNC_CALLS, calling this with that option will remove the ability of the dispatcher to make any more synchronous calls.

The following options are supported for sealing (aka removal):

• FDF_DISPATCHER_OPTION_ALLOW_SYNC_CALLS

Thread requirements

This must be called from the |dispatcher|’s own context.

Errors

ZX_ERR_INVALID_ARGS: The |option| being removed is not a supported option.

ZX_ERR_BAD_STATE: Not called from the same context as the given dispatcher or the dispatcher is not in a running state.

ZX_ERR_ALREADY_EXISTS: The option did not exist on the dispatcher. This can happen if this is called more than once with the same option, or if it was not created with the option.