1 | /* |
2 | * Copyright (c) 2000-2018 Apple 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 | /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ |
29 | /* |
30 | * Copyright (c) 1982, 1986, 1993 |
31 | * The Regents of the University of California. All rights reserved. |
32 | * |
33 | * Redistribution and use in source and binary forms, with or without |
34 | * modification, are permitted provided that the following conditions |
35 | * are met: |
36 | * 1. Redistributions of source code must retain the above copyright |
37 | * notice, this list of conditions and the following disclaimer. |
38 | * 2. Redistributions in binary form must reproduce the above copyright |
39 | * notice, this list of conditions and the following disclaimer in the |
40 | * documentation and/or other materials provided with the distribution. |
41 | * 3. All advertising materials mentioning features or use of this software |
42 | * must display the following acknowledgement: |
43 | * This product includes software developed by the University of |
44 | * California, Berkeley and its contributors. |
45 | * 4. Neither the name of the University nor the names of its contributors |
46 | * may be used to endorse or promote products derived from this software |
47 | * without specific prior written permission. |
48 | * |
49 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
50 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
51 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
52 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
53 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
54 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
55 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
56 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
57 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
58 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
59 | * SUCH DAMAGE. |
60 | * |
61 | * @(#)resource.h 8.2 (Berkeley) 1/4/94 |
62 | */ |
63 | |
64 | #ifndef _SYS_RESOURCE_H_ |
65 | #define _SYS_RESOURCE_H_ |
66 | |
67 | #include <sys/appleapiopts.h> |
68 | #include <sys/cdefs.h> |
69 | #include <sys/_types.h> |
70 | |
71 | #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL |
72 | #include <stdint.h> |
73 | #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ |
74 | |
75 | #ifndef KERNEL |
76 | #include <Availability.h> |
77 | #endif |
78 | |
79 | /* [XSI] The timeval structure shall be defined as described in |
80 | * <sys/time.h> |
81 | */ |
82 | #include <sys/_types/_timeval.h> |
83 | #ifdef KERNEL |
84 | #include <sys/_types/_user32_timeval.h> |
85 | #include <sys/_types/_user64_timeval.h> |
86 | #endif |
87 | |
88 | /* The id_t type shall be defined as described in <sys/types.h> */ |
89 | #include <sys/_types/_id_t.h> |
90 | |
91 | |
92 | /* |
93 | * Resource limit type (low 63 bits, excluding the sign bit) |
94 | */ |
95 | typedef __uint64_t rlim_t; |
96 | |
97 | |
98 | /***** |
99 | * PRIORITY |
100 | */ |
101 | |
102 | /* |
103 | * Possible values of the first parameter to getpriority()/setpriority(), |
104 | * used to indicate the type of the second parameter. |
105 | */ |
106 | #define PRIO_PROCESS 0 /* Second argument is a PID */ |
107 | #define PRIO_PGRP 1 /* Second argument is a GID */ |
108 | #define PRIO_USER 2 /* Second argument is a UID */ |
109 | |
110 | #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL |
111 | #define PRIO_DARWIN_THREAD 3 /* Second argument is always 0 (current thread) */ |
112 | #define PRIO_DARWIN_PROCESS 4 /* Second argument is a PID */ |
113 | |
114 | #ifdef PRIVATE |
115 | |
116 | #define PRIO_DARWIN_GPU 5 /* Second argument is a PID */ |
117 | |
118 | #define PRIO_DARWIN_GPU_ALLOW 0x1 |
119 | #define PRIO_DARWIN_GPU_DENY 0x2 |
120 | |
121 | #define PRIO_DARWIN_ROLE 6 /* Second argument is a PID */ |
122 | |
123 | #define PRIO_DARWIN_ROLE_DEFAULT 0x0 /* Reset to default state */ |
124 | #define PRIO_DARWIN_ROLE_UI_FOCAL 0x1 /* On screen, focal UI */ |
125 | #define PRIO_DARWIN_ROLE_UI 0x2 /* On screen UI, focal unknown */ |
126 | #define PRIO_DARWIN_ROLE_NON_UI 0x3 /* Off screen, non-focal UI */ |
127 | #define PRIO_DARWIN_ROLE_UI_NON_FOCAL 0x4 /* On screen, non-focal UI */ |
128 | #define PRIO_DARWIN_ROLE_TAL_LAUNCH 0x5 /* Throttled-launch (for OS X TAL resume) */ |
129 | #define PRIO_DARWIN_ROLE_DARWIN_BG 0x6 /* Throttled for running in the background */ |
130 | |
131 | #endif /* PRIVATE */ |
132 | |
133 | /* |
134 | * Range limitations for the value of the third parameter to setpriority(). |
135 | */ |
136 | #define PRIO_MIN -20 |
137 | #define PRIO_MAX 20 |
138 | |
139 | /* |
140 | * use PRIO_DARWIN_BG to set the current thread into "background" state |
141 | * which lowers CPU, disk IO, and networking priorites until thread terminates |
142 | * or "background" state is revoked |
143 | */ |
144 | #define PRIO_DARWIN_BG 0x1000 |
145 | |
146 | /* |
147 | * use PRIO_DARWIN_NONUI to restrict a process's ability to make calls to |
148 | * the GPU. (deprecated) |
149 | */ |
150 | #define PRIO_DARWIN_NONUI 0x1001 |
151 | |
152 | #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ |
153 | |
154 | |
155 | |
156 | /***** |
157 | * RESOURCE USAGE |
158 | */ |
159 | |
160 | /* |
161 | * Possible values of the first parameter to getrusage(), used to indicate |
162 | * the scope of the information to be returned. |
163 | */ |
164 | #define RUSAGE_SELF 0 /* Current process information */ |
165 | #define RUSAGE_CHILDREN -1 /* Current process' children */ |
166 | |
167 | /* |
168 | * A structure representing an accounting of resource utilization. The |
169 | * address of an instance of this structure is the second parameter to |
170 | * getrusage(). |
171 | * |
172 | * Note: All values other than ru_utime and ru_stime are implementaiton |
173 | * defined and subject to change in a future release. Their use |
174 | * is discouraged for standards compliant programs. |
175 | */ |
176 | struct rusage { |
177 | struct timeval ru_utime; /* user time used (PL) */ |
178 | struct timeval ru_stime; /* system time used (PL) */ |
179 | #if __DARWIN_C_LEVEL < __DARWIN_C_FULL |
180 | long ru_opaque[14]; /* implementation defined */ |
181 | #else |
182 | /* |
183 | * Informational aliases for source compatibility with programs |
184 | * that need more information than that provided by standards, |
185 | * and which do not mind being OS-dependent. |
186 | */ |
187 | long ; /* max resident set size (PL) */ |
188 | #define ru_first ru_ixrss /* internal: ruadd() range start */ |
189 | long ; /* integral shared memory size (NU) */ |
190 | long ; /* integral unshared data (NU) */ |
191 | long ; /* integral unshared stack (NU) */ |
192 | long ru_minflt; /* page reclaims (NU) */ |
193 | long ru_majflt; /* page faults (NU) */ |
194 | long ru_nswap; /* swaps (NU) */ |
195 | long ru_inblock; /* block input operations (atomic) */ |
196 | long ru_oublock; /* block output operations (atomic) */ |
197 | long ru_msgsnd; /* messages sent (atomic) */ |
198 | long ru_msgrcv; /* messages received (atomic) */ |
199 | long ru_nsignals; /* signals received (atomic) */ |
200 | long ru_nvcsw; /* voluntary context switches (atomic) */ |
201 | long ru_nivcsw; /* involuntary " */ |
202 | #define ru_last ru_nivcsw /* internal: ruadd() range end */ |
203 | #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ |
204 | }; |
205 | |
206 | #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL |
207 | /* |
208 | * Flavors for proc_pid_rusage(). |
209 | */ |
210 | #define RUSAGE_INFO_V0 0 |
211 | #define RUSAGE_INFO_V1 1 |
212 | #define RUSAGE_INFO_V2 2 |
213 | #define RUSAGE_INFO_V3 3 |
214 | #define RUSAGE_INFO_V4 4 |
215 | #define RUSAGE_INFO_CURRENT RUSAGE_INFO_V4 |
216 | |
217 | typedef void *rusage_info_t; |
218 | |
219 | struct rusage_info_v0 { |
220 | uint8_t ri_uuid[16]; |
221 | uint64_t ri_user_time; |
222 | uint64_t ri_system_time; |
223 | uint64_t ri_pkg_idle_wkups; |
224 | uint64_t ri_interrupt_wkups; |
225 | uint64_t ri_pageins; |
226 | uint64_t ri_wired_size; |
227 | uint64_t ri_resident_size; |
228 | uint64_t ; |
229 | uint64_t ri_proc_start_abstime; |
230 | uint64_t ri_proc_exit_abstime; |
231 | }; |
232 | |
233 | struct rusage_info_v1 { |
234 | uint8_t ri_uuid[16]; |
235 | uint64_t ri_user_time; |
236 | uint64_t ri_system_time; |
237 | uint64_t ri_pkg_idle_wkups; |
238 | uint64_t ri_interrupt_wkups; |
239 | uint64_t ri_pageins; |
240 | uint64_t ri_wired_size; |
241 | uint64_t ri_resident_size; |
242 | uint64_t ; |
243 | uint64_t ri_proc_start_abstime; |
244 | uint64_t ri_proc_exit_abstime; |
245 | uint64_t ri_child_user_time; |
246 | uint64_t ri_child_system_time; |
247 | uint64_t ri_child_pkg_idle_wkups; |
248 | uint64_t ri_child_interrupt_wkups; |
249 | uint64_t ri_child_pageins; |
250 | uint64_t ri_child_elapsed_abstime; |
251 | }; |
252 | |
253 | struct rusage_info_v2 { |
254 | uint8_t ri_uuid[16]; |
255 | uint64_t ri_user_time; |
256 | uint64_t ri_system_time; |
257 | uint64_t ri_pkg_idle_wkups; |
258 | uint64_t ri_interrupt_wkups; |
259 | uint64_t ri_pageins; |
260 | uint64_t ri_wired_size; |
261 | uint64_t ri_resident_size; |
262 | uint64_t ; |
263 | uint64_t ri_proc_start_abstime; |
264 | uint64_t ri_proc_exit_abstime; |
265 | uint64_t ri_child_user_time; |
266 | uint64_t ri_child_system_time; |
267 | uint64_t ri_child_pkg_idle_wkups; |
268 | uint64_t ri_child_interrupt_wkups; |
269 | uint64_t ri_child_pageins; |
270 | uint64_t ri_child_elapsed_abstime; |
271 | uint64_t ri_diskio_bytesread; |
272 | uint64_t ri_diskio_byteswritten; |
273 | }; |
274 | |
275 | struct rusage_info_v3 { |
276 | uint8_t ri_uuid[16]; |
277 | uint64_t ri_user_time; |
278 | uint64_t ri_system_time; |
279 | uint64_t ri_pkg_idle_wkups; |
280 | uint64_t ri_interrupt_wkups; |
281 | uint64_t ri_pageins; |
282 | uint64_t ri_wired_size; |
283 | uint64_t ri_resident_size; |
284 | uint64_t ; |
285 | uint64_t ri_proc_start_abstime; |
286 | uint64_t ri_proc_exit_abstime; |
287 | uint64_t ri_child_user_time; |
288 | uint64_t ri_child_system_time; |
289 | uint64_t ri_child_pkg_idle_wkups; |
290 | uint64_t ri_child_interrupt_wkups; |
291 | uint64_t ri_child_pageins; |
292 | uint64_t ri_child_elapsed_abstime; |
293 | uint64_t ri_diskio_bytesread; |
294 | uint64_t ri_diskio_byteswritten; |
295 | uint64_t ri_cpu_time_qos_default; |
296 | uint64_t ri_cpu_time_qos_maintenance; |
297 | uint64_t ri_cpu_time_qos_background; |
298 | uint64_t ri_cpu_time_qos_utility; |
299 | uint64_t ri_cpu_time_qos_legacy; |
300 | uint64_t ri_cpu_time_qos_user_initiated; |
301 | uint64_t ri_cpu_time_qos_user_interactive; |
302 | uint64_t ri_billed_system_time; |
303 | uint64_t ri_serviced_system_time; |
304 | }; |
305 | |
306 | struct rusage_info_v4 { |
307 | uint8_t ri_uuid[16]; |
308 | uint64_t ri_user_time; |
309 | uint64_t ri_system_time; |
310 | uint64_t ri_pkg_idle_wkups; |
311 | uint64_t ri_interrupt_wkups; |
312 | uint64_t ri_pageins; |
313 | uint64_t ri_wired_size; |
314 | uint64_t ri_resident_size; |
315 | uint64_t ; |
316 | uint64_t ri_proc_start_abstime; |
317 | uint64_t ri_proc_exit_abstime; |
318 | uint64_t ri_child_user_time; |
319 | uint64_t ri_child_system_time; |
320 | uint64_t ri_child_pkg_idle_wkups; |
321 | uint64_t ri_child_interrupt_wkups; |
322 | uint64_t ri_child_pageins; |
323 | uint64_t ri_child_elapsed_abstime; |
324 | uint64_t ri_diskio_bytesread; |
325 | uint64_t ri_diskio_byteswritten; |
326 | uint64_t ri_cpu_time_qos_default; |
327 | uint64_t ri_cpu_time_qos_maintenance; |
328 | uint64_t ri_cpu_time_qos_background; |
329 | uint64_t ri_cpu_time_qos_utility; |
330 | uint64_t ri_cpu_time_qos_legacy; |
331 | uint64_t ri_cpu_time_qos_user_initiated; |
332 | uint64_t ri_cpu_time_qos_user_interactive; |
333 | uint64_t ri_billed_system_time; |
334 | uint64_t ri_serviced_system_time; |
335 | uint64_t ri_logical_writes; |
336 | uint64_t ; |
337 | uint64_t ri_instructions; |
338 | uint64_t ri_cycles; |
339 | uint64_t ri_billed_energy; |
340 | uint64_t ri_serviced_energy; |
341 | uint64_t ; |
342 | // 1 reserve counter(s) remaining for future extension |
343 | uint64_t ri_unused[1]; |
344 | }; |
345 | |
346 | typedef struct rusage_info_v4 rusage_info_current; |
347 | |
348 | #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ |
349 | |
350 | #ifdef KERNEL |
351 | |
352 | struct rusage_superset { |
353 | struct rusage ru; |
354 | rusage_info_current ri; |
355 | }; |
356 | |
357 | struct rusage_info_child { |
358 | uint64_t ri_child_user_time; |
359 | uint64_t ri_child_system_time; |
360 | uint64_t ri_child_pkg_idle_wkups; |
361 | uint64_t ri_child_interrupt_wkups; |
362 | uint64_t ri_child_pageins; |
363 | uint64_t ri_child_elapsed_abstime; |
364 | }; |
365 | |
366 | struct user64_rusage { |
367 | struct user64_timeval ru_utime; /* user time used */ |
368 | struct user64_timeval ru_stime; /* system time used */ |
369 | user64_long_t ; /* max resident set size */ |
370 | user64_long_t ; /* integral shared memory size */ |
371 | user64_long_t ; /* integral unshared data " */ |
372 | user64_long_t ; /* integral unshared stack " */ |
373 | user64_long_t ru_minflt; /* page reclaims */ |
374 | user64_long_t ru_majflt; /* page faults */ |
375 | user64_long_t ru_nswap; /* swaps */ |
376 | user64_long_t ru_inblock; /* block input operations */ |
377 | user64_long_t ru_oublock; /* block output operations */ |
378 | user64_long_t ru_msgsnd; /* messages sent */ |
379 | user64_long_t ru_msgrcv; /* messages received */ |
380 | user64_long_t ru_nsignals; /* signals received */ |
381 | user64_long_t ru_nvcsw; /* voluntary context switches */ |
382 | user64_long_t ru_nivcsw; /* involuntary " */ |
383 | }; |
384 | |
385 | struct user32_rusage { |
386 | struct user32_timeval ru_utime; /* user time used */ |
387 | struct user32_timeval ru_stime; /* system time used */ |
388 | user32_long_t ; /* max resident set size */ |
389 | user32_long_t ; /* integral shared memory size */ |
390 | user32_long_t ; /* integral unshared data " */ |
391 | user32_long_t ; /* integral unshared stack " */ |
392 | user32_long_t ru_minflt; /* page reclaims */ |
393 | user32_long_t ru_majflt; /* page faults */ |
394 | user32_long_t ru_nswap; /* swaps */ |
395 | user32_long_t ru_inblock; /* block input operations */ |
396 | user32_long_t ru_oublock; /* block output operations */ |
397 | user32_long_t ru_msgsnd; /* messages sent */ |
398 | user32_long_t ru_msgrcv; /* messages received */ |
399 | user32_long_t ru_nsignals; /* signals received */ |
400 | user32_long_t ru_nvcsw; /* voluntary context switches */ |
401 | user32_long_t ru_nivcsw; /* involuntary " */ |
402 | }; |
403 | |
404 | #endif /* KERNEL */ |
405 | |
406 | |
407 | /***** |
408 | * RESOURCE LIMITS |
409 | */ |
410 | |
411 | /* |
412 | * Symbolic constants for resource limits; since all limits are representable |
413 | * as a type rlim_t, we are permitted to define RLIM_SAVED_* in terms of |
414 | * RLIM_INFINITY. |
415 | */ |
416 | #define RLIM_INFINITY (((__uint64_t)1 << 63) - 1) /* no limit */ |
417 | #define RLIM_SAVED_MAX RLIM_INFINITY /* Unrepresentable hard limit */ |
418 | #define RLIM_SAVED_CUR RLIM_INFINITY /* Unrepresentable soft limit */ |
419 | |
420 | /* |
421 | * Possible values of the first parameter to getrlimit()/setrlimit(), to |
422 | * indicate for which resource the operation is being performed. |
423 | */ |
424 | #define RLIMIT_CPU 0 /* cpu time per process */ |
425 | #define RLIMIT_FSIZE 1 /* file size */ |
426 | #define RLIMIT_DATA 2 /* data segment size */ |
427 | #define RLIMIT_STACK 3 /* stack size */ |
428 | #define RLIMIT_CORE 4 /* core file size */ |
429 | #define RLIMIT_AS 5 /* address space (resident set size) */ |
430 | #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL |
431 | #define RLIMIT_AS /* source compatibility alias */ |
432 | #define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */ |
433 | #define RLIMIT_NPROC 7 /* number of processes */ |
434 | #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ |
435 | #define RLIMIT_NOFILE 8 /* number of open files */ |
436 | #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL |
437 | #define RLIM_NLIMITS 9 /* total number of resource limits */ |
438 | #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ |
439 | #define _RLIMIT_POSIX_FLAG 0x1000 /* Set bit for strict POSIX */ |
440 | |
441 | /* |
442 | * A structure representing a resource limit. The address of an instance |
443 | * of this structure is the second parameter to getrlimit()/setrlimit(). |
444 | */ |
445 | struct rlimit { |
446 | rlim_t rlim_cur; /* current (soft) limit */ |
447 | rlim_t rlim_max; /* maximum value for rlim_cur */ |
448 | }; |
449 | |
450 | #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL |
451 | /* |
452 | * proc_rlimit_control() |
453 | * |
454 | * Resource limit flavors |
455 | */ |
456 | #define RLIMIT_WAKEUPS_MONITOR 0x1 /* Configure the wakeups monitor. */ |
457 | #define RLIMIT_CPU_USAGE_MONITOR 0x2 /* Configure the CPU usage monitor. */ |
458 | #define RLIMIT_THREAD_CPULIMITS 0x3 /* Configure a blocking, per-thread, CPU limits. */ |
459 | #define 0x4 /* Configure memory footprint interval tracking */ |
460 | |
461 | /* |
462 | * Flags for wakeups monitor control. |
463 | */ |
464 | #define WAKEMON_ENABLE 0x01 |
465 | #define WAKEMON_DISABLE 0x02 |
466 | #define WAKEMON_GET_PARAMS 0x04 |
467 | #define WAKEMON_SET_DEFAULTS 0x08 |
468 | #define WAKEMON_MAKE_FATAL 0x10 /* Configure the task so that violations are fatal. */ |
469 | |
470 | /* |
471 | * Flags for CPU usage monitor control. |
472 | */ |
473 | #define CPUMON_MAKE_FATAL 0x1000 |
474 | |
475 | /* |
476 | * Flags for memory footprint interval tracking. |
477 | */ |
478 | #define 0x1 /* Reset the footprint interval counter to zero */ |
479 | |
480 | struct proc_rlimit_control_wakeupmon { |
481 | uint32_t wm_flags; |
482 | int32_t wm_rate; |
483 | }; |
484 | |
485 | #if PRIVATE |
486 | /* |
487 | * Flags for I/O monitor control. |
488 | */ |
489 | #define IOMON_ENABLE 0x01 |
490 | #define IOMON_DISABLE 0x02 |
491 | |
492 | #endif /* PRIVATE */ |
493 | |
494 | |
495 | /* I/O type */ |
496 | #define IOPOL_TYPE_DISK 0 |
497 | #if PRIVATE |
498 | #define IOPOL_TYPE_VFS_HFS_CASE_SENSITIVITY 1 |
499 | #endif |
500 | #define IOPOL_TYPE_VFS_ATIME_UPDATES 2 |
501 | |
502 | /* scope */ |
503 | #define IOPOL_SCOPE_PROCESS 0 |
504 | #define IOPOL_SCOPE_THREAD 1 |
505 | #define IOPOL_SCOPE_DARWIN_BG 2 |
506 | |
507 | /* I/O Priority */ |
508 | #define IOPOL_DEFAULT 0 |
509 | #define IOPOL_IMPORTANT 1 |
510 | #define IOPOL_PASSIVE 2 |
511 | #define IOPOL_THROTTLE 3 |
512 | #define IOPOL_UTILITY 4 |
513 | #define IOPOL_STANDARD 5 |
514 | |
515 | /* compatibility with older names */ |
516 | #define IOPOL_APPLICATION IOPOL_STANDARD |
517 | #define IOPOL_NORMAL IOPOL_IMPORTANT |
518 | |
519 | #if PRIVATE |
520 | #define IOPOL_VFS_HFS_CASE_SENSITIVITY_DEFAULT 0 |
521 | #define IOPOL_VFS_HFS_CASE_SENSITIVITY_FORCE_CASE_SENSITIVE 1 |
522 | #endif |
523 | |
524 | #define IOPOL_ATIME_UPDATES_DEFAULT 0 |
525 | #define IOPOL_ATIME_UPDATES_OFF 1 |
526 | |
527 | #ifdef PRIVATE |
528 | /* |
529 | * Structures for use in communicating via iopolicysys() between Libc and the |
530 | * kernel. Not to be used by user programs directly. |
531 | */ |
532 | |
533 | /* |
534 | * the command to iopolicysys() |
535 | */ |
536 | #define IOPOL_CMD_GET 0x00000001 /* Get I/O policy */ |
537 | #define IOPOL_CMD_SET 0x00000002 /* Set I/O policy */ |
538 | |
539 | /* |
540 | * Second parameter to iopolicysys() |
541 | */ |
542 | struct _iopol_param_t { |
543 | int iop_scope; /* current process or a thread */ |
544 | int iop_iotype; |
545 | int iop_policy; |
546 | }; |
547 | |
548 | #endif /* PRIVATE */ |
549 | #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ |
550 | |
551 | #ifndef KERNEL |
552 | |
553 | __BEGIN_DECLS |
554 | int getpriority(int, id_t); |
555 | #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL |
556 | int getiopolicy_np(int, int) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0); |
557 | #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ |
558 | int getrlimit(int, struct rlimit *) __DARWIN_ALIAS(getrlimit); |
559 | int getrusage(int, struct rusage *); |
560 | int setpriority(int, id_t, int); |
561 | #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL |
562 | int setiopolicy_np(int, int, int) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0); |
563 | #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ |
564 | int setrlimit(int, const struct rlimit *) __DARWIN_ALIAS(setrlimit); |
565 | __END_DECLS |
566 | |
567 | #endif /* !KERNEL */ |
568 | #endif /* !_SYS_RESOURCE_H_ */ |
569 | |