1*043036a2SApple OSS Distributions /* 2*043036a2SApple OSS Distributions * Copyright (c) 2006-2018 Apple Computer, Inc. All rights reserved. 3*043036a2SApple OSS Distributions * 4*043036a2SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*043036a2SApple OSS Distributions * 6*043036a2SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*043036a2SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*043036a2SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*043036a2SApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*043036a2SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*043036a2SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*043036a2SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*043036a2SApple OSS Distributions * terms of an Apple operating system software license agreement. 14*043036a2SApple OSS Distributions * 15*043036a2SApple OSS Distributions * Please obtain a copy of the License at 16*043036a2SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*043036a2SApple OSS Distributions * 18*043036a2SApple OSS Distributions * The Original Code and all software distributed under the License are 19*043036a2SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*043036a2SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*043036a2SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*043036a2SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*043036a2SApple OSS Distributions * Please see the License for the specific language governing rights and 24*043036a2SApple OSS Distributions * limitations under the License. 25*043036a2SApple OSS Distributions * 26*043036a2SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*043036a2SApple OSS Distributions */ 28*043036a2SApple OSS Distributions 29*043036a2SApple OSS Distributions #ifndef SYS_MEMORYSTATUS_NOTIFY_H 30*043036a2SApple OSS Distributions #define SYS_MEMORYSTATUS_NOTIFY_H 31*043036a2SApple OSS Distributions 32*043036a2SApple OSS Distributions #include <stdint.h> 33*043036a2SApple OSS Distributions #include <sys/proc.h> 34*043036a2SApple OSS Distributions #include <sys/param.h> 35*043036a2SApple OSS Distributions 36*043036a2SApple OSS Distributions #if BSD_KERNEL_PRIVATE 37*043036a2SApple OSS Distributions 38*043036a2SApple OSS Distributions #if VM_PRESSURE_EVENTS 39*043036a2SApple OSS Distributions 40*043036a2SApple OSS Distributions extern vm_pressure_level_t memorystatus_vm_pressure_level; 41*043036a2SApple OSS Distributions extern _Atomic bool memorystatus_hwm_candidates; 42*043036a2SApple OSS Distributions extern unsigned int memstat_sustained_pressure_max_pri; 43*043036a2SApple OSS Distributions 44*043036a2SApple OSS Distributions boolean_t memorystatus_warn_process(const proc_t p, boolean_t is_active, 45*043036a2SApple OSS Distributions boolean_t is_fatal, boolean_t exceeded); 46*043036a2SApple OSS Distributions int memorystatus_send_note(int event_code, void *data, uint32_t data_length); 47*043036a2SApple OSS Distributions void memorystatus_send_low_swap_note(void); 48*043036a2SApple OSS Distributions void consider_vm_pressure_events(void); 49*043036a2SApple OSS Distributions void memorystatus_notify_init(void); 50*043036a2SApple OSS Distributions 51*043036a2SApple OSS Distributions #if CONFIG_MEMORYSTATUS 52*043036a2SApple OSS Distributions 53*043036a2SApple OSS Distributions int memorystatus_low_mem_privileged_listener(uint32_t op_flags); 54*043036a2SApple OSS Distributions int memorystatus_send_pressure_note(int pid); 55*043036a2SApple OSS Distributions boolean_t memorystatus_is_foreground_locked(proc_t p); 56*043036a2SApple OSS Distributions boolean_t memorystatus_bg_pressure_eligible(proc_t p); 57*043036a2SApple OSS Distributions void memorystatus_proc_flags_unsafe(void * v, boolean_t *is_dirty, boolean_t *is_dirty_tracked, boolean_t *allow_idle_exit, boolean_t *is_active, boolean_t *is_managed, boolean_t *has_assertion); 58*043036a2SApple OSS Distributions void memorystatus_broadcast_jetsam_pressure( 59*043036a2SApple OSS Distributions vm_pressure_level_t pressure_level); 60*043036a2SApple OSS Distributions 61*043036a2SApple OSS Distributions #endif /* CONFIG_MEMORYSTATUS */ 62*043036a2SApple OSS Distributions 63*043036a2SApple OSS Distributions #if DEBUG 64*043036a2SApple OSS Distributions #define VM_PRESSURE_DEBUG(cond, format, ...) \ 65*043036a2SApple OSS Distributions do { \ 66*043036a2SApple OSS Distributions if (cond) { printf(format, ##__VA_ARGS__); } \ 67*043036a2SApple OSS Distributions } while(0) 68*043036a2SApple OSS Distributions #else 69*043036a2SApple OSS Distributions #define VM_PRESSURE_DEBUG(cond, format, ...) 70*043036a2SApple OSS Distributions #endif 71*043036a2SApple OSS Distributions 72*043036a2SApple OSS Distributions #endif /* VM_PRESSURE_EVENTS */ 73*043036a2SApple OSS Distributions 74*043036a2SApple OSS Distributions #endif /* BSD_KERNEL_PRIVATE */ 75*043036a2SApple OSS Distributions 76*043036a2SApple OSS Distributions #endif /* SYS_MEMORYSTATUS_NOTIFY_H */ 77