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 ru_maxrss; /* max resident set size (PL) */ 188 #define ru_first ru_ixrss /* internal: ruadd() range start */ 189 long ru_ixrss; /* integral shared memory size (NU) */ 190 long ru_idrss; /* integral unshared data (NU) */ 191 long ru_isrss; /* 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_V5 5 216 #define RUSAGE_INFO_CURRENT RUSAGE_INFO_V5 217 218 /* 219 * Flags for RUSAGE_INFO_V5 220 */ 221 #define RU_PROC_RUNS_RESLIDE 0x00000001 /* proc has reslid shared cache */ 222 223 typedef void *rusage_info_t; 224 225 struct rusage_info_v0 { 226 uint8_t ri_uuid[16]; 227 uint64_t ri_user_time; 228 uint64_t ri_system_time; 229 uint64_t ri_pkg_idle_wkups; 230 uint64_t ri_interrupt_wkups; 231 uint64_t ri_pageins; 232 uint64_t ri_wired_size; 233 uint64_t ri_resident_size; 234 uint64_t ri_phys_footprint; 235 uint64_t ri_proc_start_abstime; 236 uint64_t ri_proc_exit_abstime; 237 }; 238 239 struct rusage_info_v1 { 240 uint8_t ri_uuid[16]; 241 uint64_t ri_user_time; 242 uint64_t ri_system_time; 243 uint64_t ri_pkg_idle_wkups; 244 uint64_t ri_interrupt_wkups; 245 uint64_t ri_pageins; 246 uint64_t ri_wired_size; 247 uint64_t ri_resident_size; 248 uint64_t ri_phys_footprint; 249 uint64_t ri_proc_start_abstime; 250 uint64_t ri_proc_exit_abstime; 251 uint64_t ri_child_user_time; 252 uint64_t ri_child_system_time; 253 uint64_t ri_child_pkg_idle_wkups; 254 uint64_t ri_child_interrupt_wkups; 255 uint64_t ri_child_pageins; 256 uint64_t ri_child_elapsed_abstime; 257 }; 258 259 struct rusage_info_v2 { 260 uint8_t ri_uuid[16]; 261 uint64_t ri_user_time; 262 uint64_t ri_system_time; 263 uint64_t ri_pkg_idle_wkups; 264 uint64_t ri_interrupt_wkups; 265 uint64_t ri_pageins; 266 uint64_t ri_wired_size; 267 uint64_t ri_resident_size; 268 uint64_t ri_phys_footprint; 269 uint64_t ri_proc_start_abstime; 270 uint64_t ri_proc_exit_abstime; 271 uint64_t ri_child_user_time; 272 uint64_t ri_child_system_time; 273 uint64_t ri_child_pkg_idle_wkups; 274 uint64_t ri_child_interrupt_wkups; 275 uint64_t ri_child_pageins; 276 uint64_t ri_child_elapsed_abstime; 277 uint64_t ri_diskio_bytesread; 278 uint64_t ri_diskio_byteswritten; 279 }; 280 281 struct rusage_info_v3 { 282 uint8_t ri_uuid[16]; 283 uint64_t ri_user_time; 284 uint64_t ri_system_time; 285 uint64_t ri_pkg_idle_wkups; 286 uint64_t ri_interrupt_wkups; 287 uint64_t ri_pageins; 288 uint64_t ri_wired_size; 289 uint64_t ri_resident_size; 290 uint64_t ri_phys_footprint; 291 uint64_t ri_proc_start_abstime; 292 uint64_t ri_proc_exit_abstime; 293 uint64_t ri_child_user_time; 294 uint64_t ri_child_system_time; 295 uint64_t ri_child_pkg_idle_wkups; 296 uint64_t ri_child_interrupt_wkups; 297 uint64_t ri_child_pageins; 298 uint64_t ri_child_elapsed_abstime; 299 uint64_t ri_diskio_bytesread; 300 uint64_t ri_diskio_byteswritten; 301 uint64_t ri_cpu_time_qos_default; 302 uint64_t ri_cpu_time_qos_maintenance; 303 uint64_t ri_cpu_time_qos_background; 304 uint64_t ri_cpu_time_qos_utility; 305 uint64_t ri_cpu_time_qos_legacy; 306 uint64_t ri_cpu_time_qos_user_initiated; 307 uint64_t ri_cpu_time_qos_user_interactive; 308 uint64_t ri_billed_system_time; 309 uint64_t ri_serviced_system_time; 310 }; 311 312 struct rusage_info_v4 { 313 uint8_t ri_uuid[16]; 314 uint64_t ri_user_time; 315 uint64_t ri_system_time; 316 uint64_t ri_pkg_idle_wkups; 317 uint64_t ri_interrupt_wkups; 318 uint64_t ri_pageins; 319 uint64_t ri_wired_size; 320 uint64_t ri_resident_size; 321 uint64_t ri_phys_footprint; 322 uint64_t ri_proc_start_abstime; 323 uint64_t ri_proc_exit_abstime; 324 uint64_t ri_child_user_time; 325 uint64_t ri_child_system_time; 326 uint64_t ri_child_pkg_idle_wkups; 327 uint64_t ri_child_interrupt_wkups; 328 uint64_t ri_child_pageins; 329 uint64_t ri_child_elapsed_abstime; 330 uint64_t ri_diskio_bytesread; 331 uint64_t ri_diskio_byteswritten; 332 uint64_t ri_cpu_time_qos_default; 333 uint64_t ri_cpu_time_qos_maintenance; 334 uint64_t ri_cpu_time_qos_background; 335 uint64_t ri_cpu_time_qos_utility; 336 uint64_t ri_cpu_time_qos_legacy; 337 uint64_t ri_cpu_time_qos_user_initiated; 338 uint64_t ri_cpu_time_qos_user_interactive; 339 uint64_t ri_billed_system_time; 340 uint64_t ri_serviced_system_time; 341 uint64_t ri_logical_writes; 342 uint64_t ri_lifetime_max_phys_footprint; 343 uint64_t ri_instructions; 344 uint64_t ri_cycles; 345 uint64_t ri_billed_energy; 346 uint64_t ri_serviced_energy; 347 uint64_t ri_interval_max_phys_footprint; 348 uint64_t ri_runnable_time; 349 }; 350 351 struct rusage_info_v5 { 352 uint8_t ri_uuid[16]; 353 uint64_t ri_user_time; 354 uint64_t ri_system_time; 355 uint64_t ri_pkg_idle_wkups; 356 uint64_t ri_interrupt_wkups; 357 uint64_t ri_pageins; 358 uint64_t ri_wired_size; 359 uint64_t ri_resident_size; 360 uint64_t ri_phys_footprint; 361 uint64_t ri_proc_start_abstime; 362 uint64_t ri_proc_exit_abstime; 363 uint64_t ri_child_user_time; 364 uint64_t ri_child_system_time; 365 uint64_t ri_child_pkg_idle_wkups; 366 uint64_t ri_child_interrupt_wkups; 367 uint64_t ri_child_pageins; 368 uint64_t ri_child_elapsed_abstime; 369 uint64_t ri_diskio_bytesread; 370 uint64_t ri_diskio_byteswritten; 371 uint64_t ri_cpu_time_qos_default; 372 uint64_t ri_cpu_time_qos_maintenance; 373 uint64_t ri_cpu_time_qos_background; 374 uint64_t ri_cpu_time_qos_utility; 375 uint64_t ri_cpu_time_qos_legacy; 376 uint64_t ri_cpu_time_qos_user_initiated; 377 uint64_t ri_cpu_time_qos_user_interactive; 378 uint64_t ri_billed_system_time; 379 uint64_t ri_serviced_system_time; 380 uint64_t ri_logical_writes; 381 uint64_t ri_lifetime_max_phys_footprint; 382 uint64_t ri_instructions; 383 uint64_t ri_cycles; 384 uint64_t ri_billed_energy; 385 uint64_t ri_serviced_energy; 386 uint64_t ri_interval_max_phys_footprint; 387 uint64_t ri_runnable_time; 388 uint64_t ri_flags; 389 }; 390 391 typedef struct rusage_info_v5 rusage_info_current; 392 393 #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ 394 395 #ifdef KERNEL 396 397 struct rusage_superset { 398 struct rusage ru; 399 rusage_info_current ri; 400 }; 401 402 struct rusage_info_child { 403 uint64_t ri_child_user_time; 404 uint64_t ri_child_system_time; 405 uint64_t ri_child_pkg_idle_wkups; 406 uint64_t ri_child_interrupt_wkups; 407 uint64_t ri_child_pageins; 408 uint64_t ri_child_elapsed_abstime; 409 }; 410 411 struct user64_rusage { 412 struct user64_timeval ru_utime; /* user time used */ 413 struct user64_timeval ru_stime; /* system time used */ 414 user64_long_t ru_maxrss; /* max resident set size */ 415 user64_long_t ru_ixrss; /* integral shared memory size */ 416 user64_long_t ru_idrss; /* integral unshared data " */ 417 user64_long_t ru_isrss; /* integral unshared stack " */ 418 user64_long_t ru_minflt; /* page reclaims */ 419 user64_long_t ru_majflt; /* page faults */ 420 user64_long_t ru_nswap; /* swaps */ 421 user64_long_t ru_inblock; /* block input operations */ 422 user64_long_t ru_oublock; /* block output operations */ 423 user64_long_t ru_msgsnd; /* messages sent */ 424 user64_long_t ru_msgrcv; /* messages received */ 425 user64_long_t ru_nsignals; /* signals received */ 426 user64_long_t ru_nvcsw; /* voluntary context switches */ 427 user64_long_t ru_nivcsw; /* involuntary " */ 428 }; 429 430 struct user32_rusage { 431 struct user32_timeval ru_utime; /* user time used */ 432 struct user32_timeval ru_stime; /* system time used */ 433 user32_long_t ru_maxrss; /* max resident set size */ 434 user32_long_t ru_ixrss; /* integral shared memory size */ 435 user32_long_t ru_idrss; /* integral unshared data " */ 436 user32_long_t ru_isrss; /* integral unshared stack " */ 437 user32_long_t ru_minflt; /* page reclaims */ 438 user32_long_t ru_majflt; /* page faults */ 439 user32_long_t ru_nswap; /* swaps */ 440 user32_long_t ru_inblock; /* block input operations */ 441 user32_long_t ru_oublock; /* block output operations */ 442 user32_long_t ru_msgsnd; /* messages sent */ 443 user32_long_t ru_msgrcv; /* messages received */ 444 user32_long_t ru_nsignals; /* signals received */ 445 user32_long_t ru_nvcsw; /* voluntary context switches */ 446 user32_long_t ru_nivcsw; /* involuntary " */ 447 }; 448 449 #endif /* KERNEL */ 450 451 452 /***** 453 * RESOURCE LIMITS 454 */ 455 456 /* 457 * Symbolic constants for resource limits; since all limits are representable 458 * as a type rlim_t, we are permitted to define RLIM_SAVED_* in terms of 459 * RLIM_INFINITY. 460 */ 461 #define RLIM_INFINITY (((__uint64_t)1 << 63) - 1) /* no limit */ 462 #define RLIM_SAVED_MAX RLIM_INFINITY /* Unrepresentable hard limit */ 463 #define RLIM_SAVED_CUR RLIM_INFINITY /* Unrepresentable soft limit */ 464 465 /* 466 * Possible values of the first parameter to getrlimit()/setrlimit(), to 467 * indicate for which resource the operation is being performed. 468 */ 469 #define RLIMIT_CPU 0 /* cpu time per process */ 470 #define RLIMIT_FSIZE 1 /* file size */ 471 #define RLIMIT_DATA 2 /* data segment size */ 472 #define RLIMIT_STACK 3 /* stack size */ 473 #define RLIMIT_CORE 4 /* core file size */ 474 #define RLIMIT_AS 5 /* address space (resident set size) */ 475 #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL 476 #define RLIMIT_RSS RLIMIT_AS /* source compatibility alias */ 477 #define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */ 478 #define RLIMIT_NPROC 7 /* number of processes */ 479 #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ 480 #define RLIMIT_NOFILE 8 /* number of open files */ 481 #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL 482 #define RLIM_NLIMITS 9 /* total number of resource limits */ 483 #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ 484 #define _RLIMIT_POSIX_FLAG 0x1000 /* Set bit for strict POSIX */ 485 486 /* 487 * A structure representing a resource limit. The address of an instance 488 * of this structure is the second parameter to getrlimit()/setrlimit(). 489 */ 490 struct rlimit { 491 rlim_t rlim_cur; /* current (soft) limit */ 492 rlim_t rlim_max; /* maximum value for rlim_cur */ 493 }; 494 495 #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL 496 /* 497 * proc_rlimit_control() 498 * 499 * Resource limit flavors 500 */ 501 #define RLIMIT_WAKEUPS_MONITOR 0x1 /* Configure the wakeups monitor. */ 502 #define RLIMIT_CPU_USAGE_MONITOR 0x2 /* Configure the CPU usage monitor. */ 503 #define RLIMIT_THREAD_CPULIMITS 0x3 /* Configure a blocking, per-thread, CPU limits. */ 504 #define RLIMIT_FOOTPRINT_INTERVAL 0x4 /* Configure memory footprint interval tracking */ 505 506 /* 507 * Flags for wakeups monitor control. 508 */ 509 #define WAKEMON_ENABLE 0x01 510 #define WAKEMON_DISABLE 0x02 511 #define WAKEMON_GET_PARAMS 0x04 512 #define WAKEMON_SET_DEFAULTS 0x08 513 #define WAKEMON_MAKE_FATAL 0x10 /* Configure the task so that violations are fatal. */ 514 515 /* 516 * Flags for CPU usage monitor control. 517 */ 518 #define CPUMON_MAKE_FATAL 0x1000 519 520 /* 521 * Flags for memory footprint interval tracking. 522 */ 523 #define FOOTPRINT_INTERVAL_RESET 0x1 /* Reset the footprint interval counter to zero */ 524 525 struct proc_rlimit_control_wakeupmon { 526 uint32_t wm_flags; 527 int32_t wm_rate; 528 }; 529 530 #if PRIVATE 531 /* 532 * Flags for I/O monitor control. 533 */ 534 #define IOMON_ENABLE 0x01 535 #define IOMON_DISABLE 0x02 536 537 #endif /* PRIVATE */ 538 539 540 /* I/O type */ 541 #define IOPOL_TYPE_DISK 0 542 #if PRIVATE 543 #define IOPOL_TYPE_VFS_HFS_CASE_SENSITIVITY 1 544 #endif 545 #define IOPOL_TYPE_VFS_ATIME_UPDATES 2 546 #define IOPOL_TYPE_VFS_MATERIALIZE_DATALESS_FILES 3 547 #define IOPOL_TYPE_VFS_STATFS_NO_DATA_VOLUME 4 548 #define IOPOL_TYPE_VFS_TRIGGER_RESOLVE 5 549 #define IOPOL_TYPE_VFS_IGNORE_CONTENT_PROTECTION 6 550 #define IOPOL_TYPE_VFS_IGNORE_PERMISSIONS 7 551 #define IOPOL_TYPE_VFS_SKIP_MTIME_UPDATE 8 552 #define IOPOL_TYPE_VFS_ALLOW_LOW_SPACE_WRITES 9 553 554 /* scope */ 555 #define IOPOL_SCOPE_PROCESS 0 556 #define IOPOL_SCOPE_THREAD 1 557 #define IOPOL_SCOPE_DARWIN_BG 2 558 559 /* I/O Priority */ 560 #define IOPOL_DEFAULT 0 561 #define IOPOL_IMPORTANT 1 562 #define IOPOL_PASSIVE 2 563 #define IOPOL_THROTTLE 3 564 #define IOPOL_UTILITY 4 565 #define IOPOL_STANDARD 5 566 567 /* compatibility with older names */ 568 #define IOPOL_APPLICATION IOPOL_STANDARD 569 #define IOPOL_NORMAL IOPOL_IMPORTANT 570 571 #if PRIVATE 572 #define IOPOL_VFS_HFS_CASE_SENSITIVITY_DEFAULT 0 573 #define IOPOL_VFS_HFS_CASE_SENSITIVITY_FORCE_CASE_SENSITIVE 1 574 #endif 575 576 #define IOPOL_ATIME_UPDATES_DEFAULT 0 577 #define IOPOL_ATIME_UPDATES_OFF 1 578 579 #define IOPOL_MATERIALIZE_DATALESS_FILES_DEFAULT 0 580 #define IOPOL_MATERIALIZE_DATALESS_FILES_OFF 1 581 #define IOPOL_MATERIALIZE_DATALESS_FILES_ON 2 582 583 #define IOPOL_VFS_STATFS_NO_DATA_VOLUME_DEFAULT 0 584 #define IOPOL_VFS_STATFS_FORCE_NO_DATA_VOLUME 1 585 586 #define IOPOL_VFS_TRIGGER_RESOLVE_DEFAULT 0 587 #define IOPOL_VFS_TRIGGER_RESOLVE_OFF 1 588 589 #define IOPOL_VFS_CONTENT_PROTECTION_DEFAULT 0 590 #define IOPOL_VFS_CONTENT_PROTECTION_IGNORE 1 591 592 #define IOPOL_VFS_IGNORE_PERMISSIONS_OFF 0 593 #define IOPOL_VFS_IGNORE_PERMISSIONS_ON 1 594 595 #define IOPOL_VFS_SKIP_MTIME_UPDATE_OFF 0 596 #define IOPOL_VFS_SKIP_MTIME_UPDATE_ON 1 597 598 #define IOPOL_VFS_ALLOW_LOW_SPACE_WRITES_OFF 0 599 #define IOPOL_VFS_ALLOW_LOW_SPACE_WRITES_ON 1 600 601 #ifdef PRIVATE 602 /* 603 * Structures for use in communicating via iopolicysys() between Libc and the 604 * kernel. Not to be used by user programs directly. 605 */ 606 607 /* 608 * the command to iopolicysys() 609 */ 610 #define IOPOL_CMD_GET 0x00000001 /* Get I/O policy */ 611 #define IOPOL_CMD_SET 0x00000002 /* Set I/O policy */ 612 613 /* 614 * Second parameter to iopolicysys() 615 */ 616 struct _iopol_param_t { 617 int iop_scope; /* current process or a thread */ 618 int iop_iotype; 619 int iop_policy; 620 }; 621 622 #endif /* PRIVATE */ 623 #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ 624 625 #ifndef KERNEL 626 627 __BEGIN_DECLS 628 int getpriority(int, id_t); 629 #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL 630 int getiopolicy_np(int, int) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0); 631 #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ 632 int getrlimit(int, struct rlimit *) __DARWIN_ALIAS(getrlimit); 633 int getrusage(int, struct rusage *); 634 int setpriority(int, id_t, int); 635 #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL 636 int setiopolicy_np(int, int, int) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0); 637 #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ 638 int setrlimit(int, const struct rlimit *) __DARWIN_ALIAS(setrlimit); 639 __END_DECLS 640 641 #endif /* !KERNEL */ 642 #endif /* !_SYS_RESOURCE_H_ */ 643