Mach messages: clock_priv

Message catalog and dispatch · All subsystem ranges · Kernel entry map

osfmk/mach/clock_priv.defs. Not listed as a separate subsystem in this checkout's mig_e table. Local bodies, generated interfaces and compatibility aliases are distinguished below; a declaration alone does not establish an active kernel message endpoint. Registration evidence: mig_e.

Reading these entries

IDs are computed from the explicit preprocessing profiles in the catalog guide, counting both routines and skip slots. They are not discovered from a running kernel. Each entry retains all observed names/declaration locations; the displayed fields come from the first non-skipped profile. Alternative declarations can have different fields. simpleroutine is one-way at the MIG interface level.

An interface contract block quotes the adjacent local .defs comment with whitespace normalized. Mechanism paragraphs explain selected implementation decisions. Local body links and call names identify implementation evidence; syntactic call lists are reading aids, not a proof that every listed call executes on every path. Short complete implementation bodies are included where especially useful.

Complete routine and reserved-slot catalog

1200: clock_set_time

Interface contract:

Obsolete interfaces, removed from kernel.

Mechanism: The interface file explicitly labels these operations obsolete and removed from the kernel. This declaration preserves the message shape, but this checkout supplies no corresponding routine body; it does not establish a working token-changing or clock-control service. The catalog registration boundary must be considered separately from successful preprocessing. clock_set_time.

Declarations: clock_set_time (server64, server32, client64, client32, libsyscall64, sender64, local64).

Fields after preprocessing (server64):

routine clock_set_time(
  clock_ctrl : clock_ctrl_t;
  new_time : mach_timespec_t);

Implementation boundary: no same-symbol receiver body was resolved in the indexed local C/C++ implementation files.

1201: clock_set_attributes

Request a privileged update of the selected clock attribute flavor.

Mechanism: The interface file explicitly labels these operations obsolete and removed from the kernel. This declaration preserves the message shape, but this checkout supplies no corresponding routine body; it does not establish a working token-changing or clock-control service. The catalog registration boundary must be considered separately from successful preprocessing. clock_set_attributes.

Declarations: clock_set_attributes (server64, server32, client64, client32, libsyscall64, sender64, local64).

Fields after preprocessing (server64):

routine clock_set_attributes(
  clock_ctrl : clock_ctrl_t;
 in flavor : clock_flavor_t;
 in clock_attr : clock_attr_t);

Implementation boundary: no same-symbol receiver body was resolved in the indexed local C/C++ implementation files.