1*d4514f0bSApple OSS Distributions /* 2*d4514f0bSApple OSS Distributions * Copyright (c) 2006-2018 Apple Computer, Inc. All rights reserved. 3*d4514f0bSApple OSS Distributions * 4*d4514f0bSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*d4514f0bSApple OSS Distributions * 6*d4514f0bSApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*d4514f0bSApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*d4514f0bSApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*d4514f0bSApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*d4514f0bSApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*d4514f0bSApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*d4514f0bSApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*d4514f0bSApple OSS Distributions * terms of an Apple operating system software license agreement. 14*d4514f0bSApple OSS Distributions * 15*d4514f0bSApple OSS Distributions * Please obtain a copy of the License at 16*d4514f0bSApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*d4514f0bSApple OSS Distributions * 18*d4514f0bSApple OSS Distributions * The Original Code and all software distributed under the License are 19*d4514f0bSApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*d4514f0bSApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*d4514f0bSApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*d4514f0bSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*d4514f0bSApple OSS Distributions * Please see the License for the specific language governing rights and 24*d4514f0bSApple OSS Distributions * limitations under the License. 25*d4514f0bSApple OSS Distributions * 26*d4514f0bSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*d4514f0bSApple OSS Distributions */ 28*d4514f0bSApple OSS Distributions 29*d4514f0bSApple OSS Distributions #ifndef SYS_MEMORYSTATUS_NOTIFY_H 30*d4514f0bSApple OSS Distributions #define SYS_MEMORYSTATUS_NOTIFY_H 31*d4514f0bSApple OSS Distributions 32*d4514f0bSApple OSS Distributions #include <stdint.h> 33*d4514f0bSApple OSS Distributions #include <sys/proc.h> 34*d4514f0bSApple OSS Distributions #include <sys/param.h> 35*d4514f0bSApple OSS Distributions 36*d4514f0bSApple OSS Distributions #if BSD_KERNEL_PRIVATE 37*d4514f0bSApple OSS Distributions 38*d4514f0bSApple OSS Distributions #if VM_PRESSURE_EVENTS 39*d4514f0bSApple OSS Distributions 40*d4514f0bSApple OSS Distributions extern vm_pressure_level_t memorystatus_vm_pressure_level; 41*d4514f0bSApple OSS Distributions extern _Atomic bool memorystatus_hwm_candidates; 42*d4514f0bSApple OSS Distributions extern unsigned int memorystatus_sustained_pressure_maximum_band; 43*d4514f0bSApple OSS Distributions 44*d4514f0bSApple OSS Distributions boolean_t memorystatus_warn_process(const proc_t p, boolean_t is_active, 45*d4514f0bSApple OSS Distributions boolean_t is_fatal, boolean_t exceeded); 46*d4514f0bSApple OSS Distributions int memorystatus_send_note(int event_code, void *data, uint32_t data_length); 47*d4514f0bSApple OSS Distributions void memorystatus_send_low_swap_note(void); 48*d4514f0bSApple OSS Distributions void consider_vm_pressure_events(void); 49*d4514f0bSApple OSS Distributions void memorystatus_notify_init(void); 50*d4514f0bSApple OSS Distributions 51*d4514f0bSApple OSS Distributions #if CONFIG_MEMORYSTATUS 52*d4514f0bSApple OSS Distributions 53*d4514f0bSApple OSS Distributions int memorystatus_low_mem_privileged_listener(uint32_t op_flags); 54*d4514f0bSApple OSS Distributions int memorystatus_send_pressure_note(int pid); 55*d4514f0bSApple OSS Distributions boolean_t memorystatus_is_foreground_locked(proc_t p); 56*d4514f0bSApple OSS Distributions boolean_t memorystatus_bg_pressure_eligible(proc_t p); 57*d4514f0bSApple OSS Distributions void memorystatus_proc_flags_unsafe(void * v, boolean_t *is_dirty, 58*d4514f0bSApple OSS Distributions boolean_t *is_dirty_tracked, boolean_t *allow_idle_exit); 59*d4514f0bSApple OSS Distributions void memorystatus_broadcast_jetsam_pressure( 60*d4514f0bSApple OSS Distributions vm_pressure_level_t pressure_level); 61*d4514f0bSApple OSS Distributions 62*d4514f0bSApple OSS Distributions #endif /* CONFIG_MEMORYSTATUS */ 63*d4514f0bSApple OSS Distributions 64*d4514f0bSApple OSS Distributions #if DEBUG 65*d4514f0bSApple OSS Distributions #define VM_PRESSURE_DEBUG(cond, format, ...) \ 66*d4514f0bSApple OSS Distributions do { \ 67*d4514f0bSApple OSS Distributions if (cond) { printf(format, ##__VA_ARGS__); } \ 68*d4514f0bSApple OSS Distributions } while(0) 69*d4514f0bSApple OSS Distributions #else 70*d4514f0bSApple OSS Distributions #define VM_PRESSURE_DEBUG(cond, format, ...) 71*d4514f0bSApple OSS Distributions #endif 72*d4514f0bSApple OSS Distributions 73*d4514f0bSApple OSS Distributions #endif /* VM_PRESSURE_EVENTS */ 74*d4514f0bSApple OSS Distributions 75*d4514f0bSApple OSS Distributions #endif /* BSD_KERNEL_PRIVATE */ 76*d4514f0bSApple OSS Distributions 77*d4514f0bSApple OSS Distributions #endif /* SYS_MEMORYSTATUS_NOTIFY_H */ 78