#include <mach/clock_reply_server.h>

mach/clock_reply_server.h Kernel.framework

includes: Kernel/string.h, Kernel/mach/ndr.h, Kernel/mach/boolean.h, Kernel/mach/kern_return.h, Kernel/mach/notify.h, mach/mach_types.h, mach/message.h, Kernel/mach/mig_errors.h, mach/port.h, Availability.h, Kernel/mach/std_types.h, Kernel/mach/mig.h, mach/mach_types.h

3 functions · 1 macro · 1 struct · 1 variable

macro_clock_reply_server_

#define _clock_reply_server_

functionclock_alarm_reply

extern MIG_SERVER_ROUTINE kern_return_t clock_alarm_reply(
	clock_reply_t alarm_port,
	kern_return_t alarm_code,
	alarm_type_t alarm_type,
	mach_timespec_t alarm_time
)

Matches up with old value Reply routine for clock_alarm.

MIG routine from mach/clock_reply.defs · simpleroutine

CMU/MIT Mach reference · manual page · © Carnegie Mellon

Ring a preset alarm.

A clock_alarm_reply function is called as the result of a message from the kernel indicating that a previously requested alarm time (clock_alarm) has arrived.

functionclock_reply_server

extern boolean_t clock_reply_server(
	mach_msg_header_t *InHeadP,
	mach_msg_header_t *OutHeadP
)

CMU/MIT Mach reference · manual page · © Carnegie Mellon

Handle kernel-generated alarm.

The clock_reply_server function is the MIG generated server handling function to handle messages from the kernel corresponding to clock alarms. Such messages are delivered to the alarm reply port named in a clock_alarm call. The clock_reply_server function performs all necessary argument handling for this kernel message and calls the appropriate handling function. These functions must be supplied by the caller.

TRUE	The message was handled and the appropriate function was called.
FALSE	The message did not apply to the alarm mechanism and no other action was taken.

functionclock_reply_server_routine

extern mig_routine_t clock_reply_server_routine(mach_msg_header_t *InHeadP)

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claude-fable-5, 2026-08-24 · not from Apple sources · verified against xnu osfmk/mach/clock_reply.defs

Returns the MIG dispatch function for the clock_reply subsystem request whose msgh_id is found in InHeadP, or a null pointer if the message is not a request of the subsystem. Alternative to the combined demultiplexer for servers that look up and invoke the handler themselves.

structclock_reply_subsystem

Description of this subsystem, for use in direct RPC

size 72, align 8

mig_server_routine_t	server	Server routine
mach_msg_id_t	start	Min routine number
mach_msg_id_t	end	Max routine number + 1
unsigned int	maxsize	Max msg size
vm_address_t	reserved	Reserved
struct routine_descriptor[1]	routine

variableclock_reply_subsystem

extern const struct clock_reply_subsystem { mig_server_routine_t server; /* Server routine */ mach_msg_id_t start; /* Min routine number */ mach_msg_id_t end; /* Max routine number + 1 */ unsigned int maxsize; /* Max msg size */ vm_address_t reserved; /* Reserved */ struct routine_descriptor /* Array of routine descriptors */ routine[1]; } clock_reply_subsystem