resource.h (19900B) - Raw
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 #include <Availability.h> 76 77 /* [XSI] The timeval structure shall be defined as described in 78 * <sys/time.h> 79 */ 80 #include <sys/_types/_timeval.h> 81 82 /* The id_t type shall be defined as described in <sys/types.h> */ 83 #include <sys/_types/_id_t.h> 84 85 86 /* 87 * Resource limit type (low 63 bits, excluding the sign bit) 88 */ 89 typedef __uint64_t rlim_t; 90 91 92 /***** 93 * PRIORITY 94 */ 95 96 /* 97 * Possible values of the first parameter to getpriority()/setpriority(), 98 * used to indicate the type of the second parameter. 99 */ 100 #define PRIO_PROCESS 0 /* Second argument is a PID */ 101 #define PRIO_PGRP 1 /* Second argument is a GID */ 102 #define PRIO_USER 2 /* Second argument is a UID */ 103 104 #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL 105 #define PRIO_DARWIN_THREAD 3 /* Second argument is always 0 (current thread) */ 106 #define PRIO_DARWIN_PROCESS 4 /* Second argument is a PID */ 107 /* Additional private parameters to getpriority()/setpriority() are in resource_private.h */ 108 109 /* 110 * Range limitations for the value of the third parameter to setpriority(). 111 */ 112 #define PRIO_MIN -20 113 #define PRIO_MAX 20 114 115 /* 116 * use PRIO_DARWIN_BG to set the current thread into "background" state 117 * which lowers CPU, disk IO, and networking priorites until thread terminates 118 * or "background" state is revoked 119 */ 120 #define PRIO_DARWIN_BG 0x1000 121 122 /* 123 * use PRIO_DARWIN_NONUI to restrict a process's ability to make calls to 124 * the GPU. (deprecated) 125 */ 126 #define PRIO_DARWIN_NONUI 0x1001 127 128 #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ 129 130 131 132 /***** 133 * RESOURCE USAGE 134 */ 135 136 /* 137 * Possible values of the first parameter to getrusage(), used to indicate 138 * the scope of the information to be returned. 139 */ 140 #define RUSAGE_SELF 0 /* Current process information */ 141 #define RUSAGE_CHILDREN -1 /* Current process' children */ 142 143 /* 144 * A structure representing an accounting of resource utilization. The 145 * address of an instance of this structure is the second parameter to 146 * getrusage(). 147 * 148 * Note: All values other than ru_utime and ru_stime are implementaiton 149 * defined and subject to change in a future release. Their use 150 * is discouraged for standards compliant programs. 151 */ 152 struct rusage { 153 struct timeval ru_utime; /* user time used (PL) */ 154 struct timeval ru_stime; /* system time used (PL) */ 155 #if __DARWIN_C_LEVEL < __DARWIN_C_FULL 156 long ru_opaque[14]; /* implementation defined */ 157 #else 158 /* 159 * Informational aliases for source compatibility with programs 160 * that need more information than that provided by standards, 161 * and which do not mind being OS-dependent. 162 */ 163 long ru_maxrss; /* max resident set size (PL) */ 164 #define ru_first ru_ixrss /* internal: ruadd() range start */ 165 long ru_ixrss; /* integral shared memory size (NU) */ 166 long ru_idrss; /* integral unshared data (NU) */ 167 long ru_isrss; /* integral unshared stack (NU) */ 168 long ru_minflt; /* page reclaims (NU) */ 169 long ru_majflt; /* page faults (NU) */ 170 long ru_nswap; /* swaps (NU) */ 171 long ru_inblock; /* block input operations (atomic) */ 172 long ru_oublock; /* block output operations (atomic) */ 173 long ru_msgsnd; /* messages sent (atomic) */ 174 long ru_msgrcv; /* messages received (atomic) */ 175 long ru_nsignals; /* signals received (atomic) */ 176 long ru_nvcsw; /* voluntary context switches (atomic) */ 177 long ru_nivcsw; /* involuntary " */ 178 #define ru_last ru_nivcsw /* internal: ruadd() range end */ 179 #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ 180 }; 181 182 #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL 183 /* 184 * Flavors for proc_pid_rusage(). 185 */ 186 #define RUSAGE_INFO_V0 0 187 #define RUSAGE_INFO_V1 1 188 #define RUSAGE_INFO_V2 2 189 #define RUSAGE_INFO_V3 3 190 #define RUSAGE_INFO_V4 4 191 #define RUSAGE_INFO_V5 5 192 #define RUSAGE_INFO_V6 6 193 #define RUSAGE_INFO_CURRENT RUSAGE_INFO_V6 194 195 /* 196 * Flags for RUSAGE_INFO_V5 197 */ 198 #define RU_PROC_RUNS_RESLIDE 0x00000001 /* proc has reslid shared cache */ 199 200 typedef void *rusage_info_t; 201 202 struct rusage_info_v0 { 203 uint8_t ri_uuid[16]; 204 uint64_t ri_user_time; 205 uint64_t ri_system_time; 206 uint64_t ri_pkg_idle_wkups; 207 uint64_t ri_interrupt_wkups; 208 uint64_t ri_pageins; 209 uint64_t ri_wired_size; 210 uint64_t ri_resident_size; 211 uint64_t ri_phys_footprint; 212 uint64_t ri_proc_start_abstime; 213 uint64_t ri_proc_exit_abstime; 214 }; 215 216 struct rusage_info_v1 { 217 uint8_t ri_uuid[16]; 218 uint64_t ri_user_time; 219 uint64_t ri_system_time; 220 uint64_t ri_pkg_idle_wkups; 221 uint64_t ri_interrupt_wkups; 222 uint64_t ri_pageins; 223 uint64_t ri_wired_size; 224 uint64_t ri_resident_size; 225 uint64_t ri_phys_footprint; 226 uint64_t ri_proc_start_abstime; 227 uint64_t ri_proc_exit_abstime; 228 uint64_t ri_child_user_time; 229 uint64_t ri_child_system_time; 230 uint64_t ri_child_pkg_idle_wkups; 231 uint64_t ri_child_interrupt_wkups; 232 uint64_t ri_child_pageins; 233 uint64_t ri_child_elapsed_abstime; 234 }; 235 236 struct rusage_info_v2 { 237 uint8_t ri_uuid[16]; 238 uint64_t ri_user_time; 239 uint64_t ri_system_time; 240 uint64_t ri_pkg_idle_wkups; 241 uint64_t ri_interrupt_wkups; 242 uint64_t ri_pageins; 243 uint64_t ri_wired_size; 244 uint64_t ri_resident_size; 245 uint64_t ri_phys_footprint; 246 uint64_t ri_proc_start_abstime; 247 uint64_t ri_proc_exit_abstime; 248 uint64_t ri_child_user_time; 249 uint64_t ri_child_system_time; 250 uint64_t ri_child_pkg_idle_wkups; 251 uint64_t ri_child_interrupt_wkups; 252 uint64_t ri_child_pageins; 253 uint64_t ri_child_elapsed_abstime; 254 uint64_t ri_diskio_bytesread; 255 uint64_t ri_diskio_byteswritten; 256 }; 257 258 struct rusage_info_v3 { 259 uint8_t ri_uuid[16]; 260 uint64_t ri_user_time; 261 uint64_t ri_system_time; 262 uint64_t ri_pkg_idle_wkups; 263 uint64_t ri_interrupt_wkups; 264 uint64_t ri_pageins; 265 uint64_t ri_wired_size; 266 uint64_t ri_resident_size; 267 uint64_t ri_phys_footprint; 268 uint64_t ri_proc_start_abstime; 269 uint64_t ri_proc_exit_abstime; 270 uint64_t ri_child_user_time; 271 uint64_t ri_child_system_time; 272 uint64_t ri_child_pkg_idle_wkups; 273 uint64_t ri_child_interrupt_wkups; 274 uint64_t ri_child_pageins; 275 uint64_t ri_child_elapsed_abstime; 276 uint64_t ri_diskio_bytesread; 277 uint64_t ri_diskio_byteswritten; 278 uint64_t ri_cpu_time_qos_default; 279 uint64_t ri_cpu_time_qos_maintenance; 280 uint64_t ri_cpu_time_qos_background; 281 uint64_t ri_cpu_time_qos_utility; 282 uint64_t ri_cpu_time_qos_legacy; 283 uint64_t ri_cpu_time_qos_user_initiated; 284 uint64_t ri_cpu_time_qos_user_interactive; 285 uint64_t ri_billed_system_time; 286 uint64_t ri_serviced_system_time; 287 }; 288 289 struct rusage_info_v4 { 290 uint8_t ri_uuid[16]; 291 uint64_t ri_user_time; 292 uint64_t ri_system_time; 293 uint64_t ri_pkg_idle_wkups; 294 uint64_t ri_interrupt_wkups; 295 uint64_t ri_pageins; 296 uint64_t ri_wired_size; 297 uint64_t ri_resident_size; 298 uint64_t ri_phys_footprint; 299 uint64_t ri_proc_start_abstime; 300 uint64_t ri_proc_exit_abstime; 301 uint64_t ri_child_user_time; 302 uint64_t ri_child_system_time; 303 uint64_t ri_child_pkg_idle_wkups; 304 uint64_t ri_child_interrupt_wkups; 305 uint64_t ri_child_pageins; 306 uint64_t ri_child_elapsed_abstime; 307 uint64_t ri_diskio_bytesread; 308 uint64_t ri_diskio_byteswritten; 309 uint64_t ri_cpu_time_qos_default; 310 uint64_t ri_cpu_time_qos_maintenance; 311 uint64_t ri_cpu_time_qos_background; 312 uint64_t ri_cpu_time_qos_utility; 313 uint64_t ri_cpu_time_qos_legacy; 314 uint64_t ri_cpu_time_qos_user_initiated; 315 uint64_t ri_cpu_time_qos_user_interactive; 316 uint64_t ri_billed_system_time; 317 uint64_t ri_serviced_system_time; 318 uint64_t ri_logical_writes; 319 uint64_t ri_lifetime_max_phys_footprint; 320 uint64_t ri_instructions; 321 uint64_t ri_cycles; 322 uint64_t ri_billed_energy; 323 uint64_t ri_serviced_energy; 324 uint64_t ri_interval_max_phys_footprint; 325 uint64_t ri_runnable_time; 326 }; 327 328 struct rusage_info_v5 { 329 uint8_t ri_uuid[16]; 330 uint64_t ri_user_time; 331 uint64_t ri_system_time; 332 uint64_t ri_pkg_idle_wkups; 333 uint64_t ri_interrupt_wkups; 334 uint64_t ri_pageins; 335 uint64_t ri_wired_size; 336 uint64_t ri_resident_size; 337 uint64_t ri_phys_footprint; 338 uint64_t ri_proc_start_abstime; 339 uint64_t ri_proc_exit_abstime; 340 uint64_t ri_child_user_time; 341 uint64_t ri_child_system_time; 342 uint64_t ri_child_pkg_idle_wkups; 343 uint64_t ri_child_interrupt_wkups; 344 uint64_t ri_child_pageins; 345 uint64_t ri_child_elapsed_abstime; 346 uint64_t ri_diskio_bytesread; 347 uint64_t ri_diskio_byteswritten; 348 uint64_t ri_cpu_time_qos_default; 349 uint64_t ri_cpu_time_qos_maintenance; 350 uint64_t ri_cpu_time_qos_background; 351 uint64_t ri_cpu_time_qos_utility; 352 uint64_t ri_cpu_time_qos_legacy; 353 uint64_t ri_cpu_time_qos_user_initiated; 354 uint64_t ri_cpu_time_qos_user_interactive; 355 uint64_t ri_billed_system_time; 356 uint64_t ri_serviced_system_time; 357 uint64_t ri_logical_writes; 358 uint64_t ri_lifetime_max_phys_footprint; 359 uint64_t ri_instructions; 360 uint64_t ri_cycles; 361 uint64_t ri_billed_energy; 362 uint64_t ri_serviced_energy; 363 uint64_t ri_interval_max_phys_footprint; 364 uint64_t ri_runnable_time; 365 uint64_t ri_flags; 366 }; 367 368 struct rusage_info_v6 { 369 uint8_t ri_uuid[16]; 370 uint64_t ri_user_time; 371 uint64_t ri_system_time; 372 uint64_t ri_pkg_idle_wkups; 373 uint64_t ri_interrupt_wkups; 374 uint64_t ri_pageins; 375 uint64_t ri_wired_size; 376 uint64_t ri_resident_size; 377 uint64_t ri_phys_footprint; 378 uint64_t ri_proc_start_abstime; 379 uint64_t ri_proc_exit_abstime; 380 uint64_t ri_child_user_time; 381 uint64_t ri_child_system_time; 382 uint64_t ri_child_pkg_idle_wkups; 383 uint64_t ri_child_interrupt_wkups; 384 uint64_t ri_child_pageins; 385 uint64_t ri_child_elapsed_abstime; 386 uint64_t ri_diskio_bytesread; 387 uint64_t ri_diskio_byteswritten; 388 uint64_t ri_cpu_time_qos_default; 389 uint64_t ri_cpu_time_qos_maintenance; 390 uint64_t ri_cpu_time_qos_background; 391 uint64_t ri_cpu_time_qos_utility; 392 uint64_t ri_cpu_time_qos_legacy; 393 uint64_t ri_cpu_time_qos_user_initiated; 394 uint64_t ri_cpu_time_qos_user_interactive; 395 uint64_t ri_billed_system_time; 396 uint64_t ri_serviced_system_time; 397 uint64_t ri_logical_writes; 398 uint64_t ri_lifetime_max_phys_footprint; 399 uint64_t ri_instructions; 400 uint64_t ri_cycles; 401 uint64_t ri_billed_energy; 402 uint64_t ri_serviced_energy; 403 uint64_t ri_interval_max_phys_footprint; 404 uint64_t ri_runnable_time; 405 uint64_t ri_flags; 406 uint64_t ri_user_ptime; 407 uint64_t ri_system_ptime; 408 uint64_t ri_pinstructions; 409 uint64_t ri_pcycles; 410 uint64_t ri_energy_nj; 411 uint64_t ri_penergy_nj; 412 uint64_t ri_secure_time_in_system; 413 uint64_t ri_secure_ptime_in_system; 414 uint64_t ri_neural_footprint; 415 uint64_t ri_lifetime_max_neural_footprint; 416 uint64_t ri_interval_max_neural_footprint; 417 uint64_t ri_reserved[9]; 418 }; 419 420 typedef struct rusage_info_v6 rusage_info_current; 421 422 #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ 423 424 425 426 /***** 427 * RESOURCE LIMITS 428 */ 429 430 /* 431 * Symbolic constants for resource limits; since all limits are representable 432 * as a type rlim_t, we are permitted to define RLIM_SAVED_* in terms of 433 * RLIM_INFINITY. 434 */ 435 #define RLIM_INFINITY (((__uint64_t)1 << 63) - 1) /* no limit */ 436 #define RLIM_SAVED_MAX RLIM_INFINITY /* Unrepresentable hard limit */ 437 #define RLIM_SAVED_CUR RLIM_INFINITY /* Unrepresentable soft limit */ 438 439 /* 440 * Possible values of the first parameter to getrlimit()/setrlimit(), to 441 * indicate for which resource the operation is being performed. 442 */ 443 #define RLIMIT_CPU 0 /* cpu time per process */ 444 #define RLIMIT_FSIZE 1 /* file size */ 445 #define RLIMIT_DATA 2 /* data segment size */ 446 #define RLIMIT_STACK 3 /* stack size */ 447 #define RLIMIT_CORE 4 /* core file size */ 448 #define RLIMIT_AS 5 /* address space (resident set size) */ 449 #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL 450 #define RLIMIT_RSS RLIMIT_AS /* source compatibility alias */ 451 #define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */ 452 #define RLIMIT_NPROC 7 /* number of processes */ 453 #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ 454 #define RLIMIT_NOFILE 8 /* number of open files */ 455 #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL 456 #define RLIM_NLIMITS 9 /* total number of resource limits */ 457 #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ 458 #define _RLIMIT_POSIX_FLAG 0x1000 /* Set bit for strict POSIX */ 459 460 /* 461 * A structure representing a resource limit. The address of an instance 462 * of this structure is the second parameter to getrlimit()/setrlimit(). 463 */ 464 struct rlimit { 465 rlim_t rlim_cur; /* current (soft) limit */ 466 rlim_t rlim_max; /* maximum value for rlim_cur */ 467 }; 468 469 #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL 470 /* 471 * proc_rlimit_control() 472 * 473 * Resource limit flavors 474 */ 475 #define RLIMIT_WAKEUPS_MONITOR 0x1 /* Configure the wakeups monitor. */ 476 #define RLIMIT_CPU_USAGE_MONITOR 0x2 /* Configure the CPU usage monitor. */ 477 #define RLIMIT_THREAD_CPULIMITS 0x3 /* Configure a blocking, per-thread, CPU limits. */ 478 #define RLIMIT_FOOTPRINT_INTERVAL 0x4 /* Configure memory footprint interval tracking */ 479 480 /* 481 * Flags for wakeups monitor control. 482 */ 483 #define WAKEMON_ENABLE 0x01 484 #define WAKEMON_DISABLE 0x02 485 #define WAKEMON_GET_PARAMS 0x04 486 #define WAKEMON_SET_DEFAULTS 0x08 487 #define WAKEMON_MAKE_FATAL 0x10 /* Configure the task so that violations are fatal. */ 488 489 /* 490 * Flags for CPU usage monitor control. 491 */ 492 #define CPUMON_MAKE_FATAL 0x1000 493 494 /* 495 * Flags for memory footprint interval tracking. 496 */ 497 #define FOOTPRINT_INTERVAL_RESET 0x1 /* Reset the footprint interval counter to zero */ 498 499 struct proc_rlimit_control_wakeupmon { 500 uint32_t wm_flags; 501 int32_t wm_rate; 502 }; 503 504 /* Additional private I/O policies are in resource_private.h */ 505 506 /* I/O type */ 507 #define IOPOL_TYPE_DISK 0 508 #define IOPOL_TYPE_VFS_ATIME_UPDATES 2 509 #define IOPOL_TYPE_VFS_MATERIALIZE_DATALESS_FILES 3 510 #define IOPOL_TYPE_VFS_STATFS_NO_DATA_VOLUME 4 511 #define IOPOL_TYPE_VFS_TRIGGER_RESOLVE 5 512 #define IOPOL_TYPE_VFS_IGNORE_CONTENT_PROTECTION 6 513 #define IOPOL_TYPE_VFS_IGNORE_PERMISSIONS 7 514 #define IOPOL_TYPE_VFS_SKIP_MTIME_UPDATE 8 515 #define IOPOL_TYPE_VFS_ALLOW_LOW_SPACE_WRITES 9 516 #define IOPOL_TYPE_VFS_DISALLOW_RW_FOR_O_EVTONLY 10 517 518 /* scope */ 519 #define IOPOL_SCOPE_PROCESS 0 520 #define IOPOL_SCOPE_THREAD 1 521 #define IOPOL_SCOPE_DARWIN_BG 2 522 523 /* I/O Priority */ 524 #define IOPOL_DEFAULT 0 525 #define IOPOL_IMPORTANT 1 526 #define IOPOL_PASSIVE 2 527 #define IOPOL_THROTTLE 3 528 #define IOPOL_UTILITY 4 529 #define IOPOL_STANDARD 5 530 531 /* compatibility with older names */ 532 #define IOPOL_APPLICATION IOPOL_STANDARD 533 #define IOPOL_NORMAL IOPOL_IMPORTANT 534 535 #define IOPOL_ATIME_UPDATES_DEFAULT 0 536 #define IOPOL_ATIME_UPDATES_OFF 1 537 538 #define IOPOL_MATERIALIZE_DATALESS_FILES_DEFAULT 0 539 #define IOPOL_MATERIALIZE_DATALESS_FILES_OFF 1 540 #define IOPOL_MATERIALIZE_DATALESS_FILES_ON 2 541 542 #define IOPOL_VFS_STATFS_NO_DATA_VOLUME_DEFAULT 0 543 #define IOPOL_VFS_STATFS_FORCE_NO_DATA_VOLUME 1 544 545 #define IOPOL_VFS_TRIGGER_RESOLVE_DEFAULT 0 546 #define IOPOL_VFS_TRIGGER_RESOLVE_OFF 1 547 548 #define IOPOL_VFS_CONTENT_PROTECTION_DEFAULT 0 549 #define IOPOL_VFS_CONTENT_PROTECTION_IGNORE 1 550 551 #define IOPOL_VFS_IGNORE_PERMISSIONS_OFF 0 552 #define IOPOL_VFS_IGNORE_PERMISSIONS_ON 1 553 554 #define IOPOL_VFS_SKIP_MTIME_UPDATE_OFF 0 555 #define IOPOL_VFS_SKIP_MTIME_UPDATE_ON 1 556 #define IOPOL_VFS_SKIP_MTIME_UPDATE_IGNORE 2 557 558 #define IOPOL_VFS_ALLOW_LOW_SPACE_WRITES_OFF 0 559 #define IOPOL_VFS_ALLOW_LOW_SPACE_WRITES_ON 1 560 561 #define IOPOL_VFS_DISALLOW_RW_FOR_O_EVTONLY_DEFAULT 0 562 #define IOPOL_VFS_DISALLOW_RW_FOR_O_EVTONLY_ON 1 563 564 #define IOPOL_VFS_NOCACHE_WRITE_FS_BLKSIZE_DEFAULT 0 565 #define IOPOL_VFS_NOCACHE_WRITE_FS_BLKSIZE_ON 1 566 567 #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ 568 569 570 __BEGIN_DECLS 571 int getpriority(int, id_t); 572 #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL 573 int getiopolicy_np(int, int) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0); 574 #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ 575 int getrlimit(int, struct rlimit *) __DARWIN_ALIAS(getrlimit); 576 int getrusage(int, struct rusage *); 577 int setpriority(int, id_t, int); 578 #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL 579 int setiopolicy_np(int, int, int) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0); 580 #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ 581 int setrlimit(int, const struct rlimit *) __DARWIN_ALIAS(setrlimit); 582 __END_DECLS 583 584 585 586 #endif /* !_SYS_RESOURCE_H_ */