MessageDescriptor

Getting The Descriptor Size

• size-type.property
• size-property

Port Descriptors

• struct MessageDescriptorType

  A descriptor type.

• Darwin/mach_msg_port_descriptor_t
• struct MessagePortGuardFlags

  Flags for guarding a port in a message.

Out-Of-Line Descriptors

• Darwin/mach_msg_guarded_port_descriptor_t
• struct OOLDescriptorCopyOption

  A copy option for out-of-line descriptors.

• Darwin/mach_msg_ool_descriptor_t
• Darwin/mach_msg_ool_ports_descriptor_t