darling-xnu/bsd/sys/kern_memorystatus_notify.h
2023-05-16 21:41:14 -07:00

70 lines
2.7 KiB
C

/*
* Copyright (c) 2006-2018 Apple Computer, Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
#ifndef SYS_MEMORYSTATUS_NOTIFY_H
#define SYS_MEMORYSTATUS_NOTIFY_H
#include <stdint.h>
#include <sys/proc.h>
#include <sys/param.h>
#if VM_PRESSURE_EVENTS
extern vm_pressure_level_t memorystatus_vm_pressure_level;
extern boolean_t memorystatus_hwm_candidates;
boolean_t memorystatus_warn_process(const proc_t p, __unused boolean_t is_active, __unused boolean_t is_fatal, boolean_t exceeded);
int memorystatus_send_note(int event_code, void *data, uint32_t data_length);
int memorystatus_send_dirty_status_change_note(void *data, uint32_t data_length);
void memorystatus_send_low_swap_note(void);
void consider_vm_pressure_events(void);
#if CONFIG_MEMORYSTATUS
int memorystatus_low_mem_privileged_listener(uint32_t op_flags);
int memorystatus_send_pressure_note(int pid);
boolean_t memorystatus_is_foreground_locked(proc_t p);
boolean_t memorystatus_bg_pressure_eligible(proc_t p);
void memorystatus_proc_flags_unsafe(void * v, boolean_t *is_dirty, boolean_t *is_dirty_tracked, boolean_t *allow_idle_exit);
extern void memorystatus_issue_fg_band_notify(void);
#endif /* CONFIG_MEMORYSTATUS */
#if DEBUG
#define VM_PRESSURE_DEBUG(cond, format, ...) \
do { \
if (cond) { printf(format, ##__VA_ARGS__); } \
} while(0)
#else
#define VM_PRESSURE_DEBUG(cond, format, ...)
#endif
#endif /* VM_PRESSURE_EVENTS */
#endif /* SYS_MEMORYSTATUS_NOTIFY_H */