1*0f4c859eSApple OSS Distributions /* 2*0f4c859eSApple OSS Distributions * Copyright (c) 2006-2018 Apple Computer, Inc. All rights reserved. 3*0f4c859eSApple OSS Distributions * 4*0f4c859eSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*0f4c859eSApple OSS Distributions * 6*0f4c859eSApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*0f4c859eSApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*0f4c859eSApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*0f4c859eSApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*0f4c859eSApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*0f4c859eSApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*0f4c859eSApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*0f4c859eSApple OSS Distributions * terms of an Apple operating system software license agreement. 14*0f4c859eSApple OSS Distributions * 15*0f4c859eSApple OSS Distributions * Please obtain a copy of the License at 16*0f4c859eSApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*0f4c859eSApple OSS Distributions * 18*0f4c859eSApple OSS Distributions * The Original Code and all software distributed under the License are 19*0f4c859eSApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*0f4c859eSApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*0f4c859eSApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*0f4c859eSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*0f4c859eSApple OSS Distributions * Please see the License for the specific language governing rights and 24*0f4c859eSApple OSS Distributions * limitations under the License. 25*0f4c859eSApple OSS Distributions * 26*0f4c859eSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*0f4c859eSApple OSS Distributions */ 28*0f4c859eSApple OSS Distributions 29*0f4c859eSApple OSS Distributions #ifndef SYS_MEMORYSTATUS_NOTIFY_H 30*0f4c859eSApple OSS Distributions #define SYS_MEMORYSTATUS_NOTIFY_H 31*0f4c859eSApple OSS Distributions 32*0f4c859eSApple OSS Distributions #include <stdint.h> 33*0f4c859eSApple OSS Distributions #include <sys/proc.h> 34*0f4c859eSApple OSS Distributions #include <sys/param.h> 35*0f4c859eSApple OSS Distributions 36*0f4c859eSApple OSS Distributions #if VM_PRESSURE_EVENTS 37*0f4c859eSApple OSS Distributions 38*0f4c859eSApple OSS Distributions extern vm_pressure_level_t memorystatus_vm_pressure_level; 39*0f4c859eSApple OSS Distributions extern boolean_t memorystatus_hwm_candidates; 40*0f4c859eSApple OSS Distributions extern unsigned int memorystatus_sustained_pressure_maximum_band; 41*0f4c859eSApple OSS Distributions 42*0f4c859eSApple OSS Distributions boolean_t memorystatus_warn_process(const proc_t p, __unused boolean_t is_active, __unused boolean_t is_fatal, boolean_t exceeded); 43*0f4c859eSApple OSS Distributions int memorystatus_send_note(int event_code, void *data, uint32_t data_length); 44*0f4c859eSApple OSS Distributions void memorystatus_send_low_swap_note(void); 45*0f4c859eSApple OSS Distributions void consider_vm_pressure_events(void); 46*0f4c859eSApple OSS Distributions void memorystatus_notify_init(void); 47*0f4c859eSApple OSS Distributions 48*0f4c859eSApple OSS Distributions #if CONFIG_MEMORYSTATUS 49*0f4c859eSApple OSS Distributions 50*0f4c859eSApple OSS Distributions int memorystatus_low_mem_privileged_listener(uint32_t op_flags); 51*0f4c859eSApple OSS Distributions int memorystatus_send_pressure_note(int pid); 52*0f4c859eSApple OSS Distributions boolean_t memorystatus_is_foreground_locked(proc_t p); 53*0f4c859eSApple OSS Distributions boolean_t memorystatus_bg_pressure_eligible(proc_t p); 54*0f4c859eSApple OSS Distributions void memorystatus_proc_flags_unsafe(void * v, boolean_t *is_dirty, boolean_t *is_dirty_tracked, boolean_t *allow_idle_exit); 55*0f4c859eSApple OSS Distributions extern void memorystatus_issue_fg_band_notify(void); 56*0f4c859eSApple OSS Distributions 57*0f4c859eSApple OSS Distributions #endif /* CONFIG_MEMORYSTATUS */ 58*0f4c859eSApple OSS Distributions 59*0f4c859eSApple OSS Distributions #if DEBUG 60*0f4c859eSApple OSS Distributions #define VM_PRESSURE_DEBUG(cond, format, ...) \ 61*0f4c859eSApple OSS Distributions do { \ 62*0f4c859eSApple OSS Distributions if (cond) { printf(format, ##__VA_ARGS__); } \ 63*0f4c859eSApple OSS Distributions } while(0) 64*0f4c859eSApple OSS Distributions #else 65*0f4c859eSApple OSS Distributions #define VM_PRESSURE_DEBUG(cond, format, ...) 66*0f4c859eSApple OSS Distributions #endif 67*0f4c859eSApple OSS Distributions 68*0f4c859eSApple OSS Distributions #endif /* VM_PRESSURE_EVENTS */ 69*0f4c859eSApple OSS Distributions 70*0f4c859eSApple OSS Distributions #endif /* SYS_MEMORYSTATUS_NOTIFY_H */ 71