MachService

public class MachService : Codable

This optional key is used to specify Mach services to be registered with the Mach bootstrap namespace.

Each key in this dictionary should be the name of a service to be advertised. The value of the key must be a boolean and set to true or a dictionary in order for the service to be advertised.

  • Reserve the name in the namespace, but cause bootstrap_look_up() to fail until the job has checked in with launchd.

    This option is incompatible withxpc(3), which relies on the con- stant availability of services. This option also encourages polling for service availability and is therefore generally discouraged. Future implementations will penalize use of this option in subtle and creative ways.

    Jobs can dequeue messages from the MachServices they advertised with xpc_connection_create_mach_service(3) or bootstrap_check_in() API (to obtain the underlying port’s receive right) and the Mach APIs to dequeue messages from that port.

    Declaration

    Swift

    public var hideUntilCheckIn: Bool

  • The default value for this key is false, and so the port is recy- cled, thus leaving clients to remain oblivious to the demand nature of the job.

    If the value is set to true, clients receive port death notifications when the job lets go of the receive right. The port will be recreated atomically with respect to bootstrap_look_up() calls, so that clients can trust that after receiving a port-death notification, the new port will have already been recreated. Set- ting the value to true should be done with care. Not all clients may be able to handle this behavior. The default value is false.

    Note

    This option is not compatible with xpc(3), which automat- ically handles notifying clients of interrupted connections and server death.

    Declaration

    Swift

    public var resetAtClose: Bool

  • Instantiate a new object

    Declaration

    Swift

    public init(hideUntilCheckIn: Bool, resetAtClose: Bool)

  • launchd.plist keys

    See more

    Declaration

    Swift

    public enum CodingKeys : String, CodingKey