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