1*43a90889SApple OSS Distributions /* 2*43a90889SApple OSS Distributions * Copyright (c) 2006-2018 Apple Computer, Inc. All rights reserved. 3*43a90889SApple OSS Distributions * 4*43a90889SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*43a90889SApple OSS Distributions * 6*43a90889SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*43a90889SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*43a90889SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*43a90889SApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*43a90889SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*43a90889SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*43a90889SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*43a90889SApple OSS Distributions * terms of an Apple operating system software license agreement. 14*43a90889SApple OSS Distributions * 15*43a90889SApple OSS Distributions * Please obtain a copy of the License at 16*43a90889SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*43a90889SApple OSS Distributions * 18*43a90889SApple OSS Distributions * The Original Code and all software distributed under the License are 19*43a90889SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*43a90889SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*43a90889SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*43a90889SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*43a90889SApple OSS Distributions * Please see the License for the specific language governing rights and 24*43a90889SApple OSS Distributions * limitations under the License. 25*43a90889SApple OSS Distributions * 26*43a90889SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*43a90889SApple OSS Distributions */ 28*43a90889SApple OSS Distributions 29*43a90889SApple OSS Distributions #ifndef SYS_MEMORYSTATUS_NOTIFY_H 30*43a90889SApple OSS Distributions #define SYS_MEMORYSTATUS_NOTIFY_H 31*43a90889SApple OSS Distributions 32*43a90889SApple OSS Distributions #include <stdint.h> 33*43a90889SApple OSS Distributions #include <sys/proc.h> 34*43a90889SApple OSS Distributions #include <sys/param.h> 35*43a90889SApple OSS Distributions 36*43a90889SApple OSS Distributions #if BSD_KERNEL_PRIVATE 37*43a90889SApple OSS Distributions 38*43a90889SApple OSS Distributions #if VM_PRESSURE_EVENTS 39*43a90889SApple OSS Distributions 40*43a90889SApple OSS Distributions extern vm_pressure_level_t memorystatus_vm_pressure_level; 41*43a90889SApple OSS Distributions extern _Atomic bool memorystatus_hwm_candidates; 42*43a90889SApple OSS Distributions extern unsigned int memorystatus_sustained_pressure_maximum_band; 43*43a90889SApple OSS Distributions 44*43a90889SApple OSS Distributions boolean_t memorystatus_warn_process(const proc_t p, boolean_t is_active, 45*43a90889SApple OSS Distributions boolean_t is_fatal, boolean_t exceeded); 46*43a90889SApple OSS Distributions int memorystatus_send_note(int event_code, void *data, uint32_t data_length); 47*43a90889SApple OSS Distributions void memorystatus_send_low_swap_note(void); 48*43a90889SApple OSS Distributions void consider_vm_pressure_events(void); 49*43a90889SApple OSS Distributions void memorystatus_notify_init(void); 50*43a90889SApple OSS Distributions 51*43a90889SApple OSS Distributions #if CONFIG_MEMORYSTATUS 52*43a90889SApple OSS Distributions 53*43a90889SApple OSS Distributions int memorystatus_low_mem_privileged_listener(uint32_t op_flags); 54*43a90889SApple OSS Distributions int memorystatus_send_pressure_note(int pid); 55*43a90889SApple OSS Distributions boolean_t memorystatus_is_foreground_locked(proc_t p); 56*43a90889SApple OSS Distributions boolean_t memorystatus_bg_pressure_eligible(proc_t p); 57*43a90889SApple OSS Distributions void memorystatus_proc_flags_unsafe(void * v, boolean_t *is_dirty, 58*43a90889SApple OSS Distributions boolean_t *is_dirty_tracked, boolean_t *allow_idle_exit); 59*43a90889SApple OSS Distributions void memorystatus_broadcast_jetsam_pressure( 60*43a90889SApple OSS Distributions vm_pressure_level_t pressure_level); 61*43a90889SApple OSS Distributions 62*43a90889SApple OSS Distributions #endif /* CONFIG_MEMORYSTATUS */ 63*43a90889SApple OSS Distributions 64*43a90889SApple OSS Distributions #if DEBUG 65*43a90889SApple OSS Distributions #define VM_PRESSURE_DEBUG(cond, format, ...) \ 66*43a90889SApple OSS Distributions do { \ 67*43a90889SApple OSS Distributions if (cond) { printf(format, ##__VA_ARGS__); } \ 68*43a90889SApple OSS Distributions } while(0) 69*43a90889SApple OSS Distributions #else 70*43a90889SApple OSS Distributions #define VM_PRESSURE_DEBUG(cond, format, ...) 71*43a90889SApple OSS Distributions #endif 72*43a90889SApple OSS Distributions 73*43a90889SApple OSS Distributions #endif /* VM_PRESSURE_EVENTS */ 74*43a90889SApple OSS Distributions 75*43a90889SApple OSS Distributions #endif /* BSD_KERNEL_PRIVATE */ 76*43a90889SApple OSS Distributions 77*43a90889SApple OSS Distributions #endif /* SYS_MEMORYSTATUS_NOTIFY_H */ 78