gems-kernel/source/THIRDPARTY/xnu/bsd/sys/resource.h
2024-06-03 11:29:39 -05:00

708 lines
24 KiB
C

/*
* Copyright (c) 2000-2018 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
/*
* Copyright (c) 1982, 1986, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)resource.h 8.2 (Berkeley) 1/4/94
*/
#ifndef _SYS_RESOURCE_H_
#define _SYS_RESOURCE_H_
#include <sys/appleapiopts.h>
#include <sys/cdefs.h>
#include <sys/_types.h>
#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL
#include <stdint.h>
#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
#ifndef KERNEL
#include <Availability.h>
#endif
/* [XSI] The timeval structure shall be defined as described in
* <sys/time.h>
*/
#include <sys/_types/_timeval.h>
#ifdef KERNEL
#include <sys/_types/_user32_timeval.h>
#include <sys/_types/_user64_timeval.h>
#endif
/* The id_t type shall be defined as described in <sys/types.h> */
#include <sys/_types/_id_t.h>
/*
* Resource limit type (low 63 bits, excluding the sign bit)
*/
typedef __uint64_t rlim_t;
/*****
* PRIORITY
*/
/*
* Possible values of the first parameter to getpriority()/setpriority(),
* used to indicate the type of the second parameter.
*/
#define PRIO_PROCESS 0 /* Second argument is a PID */
#define PRIO_PGRP 1 /* Second argument is a GID */
#define PRIO_USER 2 /* Second argument is a UID */
#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL
#define PRIO_DARWIN_THREAD 3 /* Second argument is always 0 (current thread) */
#define PRIO_DARWIN_PROCESS 4 /* Second argument is a PID */
#ifdef PRIVATE
#define PRIO_DARWIN_GPU 5 /* Second argument is a PID */
#define PRIO_DARWIN_GPU_ALLOW 0x1
#define PRIO_DARWIN_GPU_DENY 0x2
#define PRIO_DARWIN_ROLE 6 /* Second argument is a PID */
#define PRIO_DARWIN_ROLE_DEFAULT 0x0 /* Reset to default state */
#define PRIO_DARWIN_ROLE_UI_FOCAL 0x1 /* On screen, focal UI */
#define PRIO_DARWIN_ROLE_UI 0x2 /* On screen UI, focal unknown */
#define PRIO_DARWIN_ROLE_NON_UI 0x3 /* Off screen, non-focal UI */
#define PRIO_DARWIN_ROLE_UI_NON_FOCAL 0x4 /* On screen, non-focal UI */
#define PRIO_DARWIN_ROLE_TAL_LAUNCH 0x5 /* Throttled-launch (for OS X TAL resume) */
#define PRIO_DARWIN_ROLE_DARWIN_BG 0x6 /* Throttled for running in the background */
/* Additional private parameters to getpriority()/setpriority() are in resource_private.h */
#endif /* PRIVATE */
/*
* Range limitations for the value of the third parameter to setpriority().
*/
#define PRIO_MIN -20
#define PRIO_MAX 20
/*
* use PRIO_DARWIN_BG to set the current thread into "background" state
* which lowers CPU, disk IO, and networking priorites until thread terminates
* or "background" state is revoked
*/
#define PRIO_DARWIN_BG 0x1000
/*
* use PRIO_DARWIN_NONUI to restrict a process's ability to make calls to
* the GPU. (deprecated)
*/
#define PRIO_DARWIN_NONUI 0x1001
#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
/*****
* RESOURCE USAGE
*/
/*
* Possible values of the first parameter to getrusage(), used to indicate
* the scope of the information to be returned.
*/
#define RUSAGE_SELF 0 /* Current process information */
#define RUSAGE_CHILDREN -1 /* Current process' children */
/*
* A structure representing an accounting of resource utilization. The
* address of an instance of this structure is the second parameter to
* getrusage().
*
* Note: All values other than ru_utime and ru_stime are implementaiton
* defined and subject to change in a future release. Their use
* is discouraged for standards compliant programs.
*/
struct rusage {
struct timeval ru_utime; /* user time used (PL) */
struct timeval ru_stime; /* system time used (PL) */
#if __DARWIN_C_LEVEL < __DARWIN_C_FULL
long ru_opaque[14]; /* implementation defined */
#else
/*
* Informational aliases for source compatibility with programs
* that need more information than that provided by standards,
* and which do not mind being OS-dependent.
*/
long ru_maxrss; /* max resident set size (PL) */
#define ru_first ru_ixrss /* internal: ruadd() range start */
long ru_ixrss; /* integral shared memory size (NU) */
long ru_idrss; /* integral unshared data (NU) */
long ru_isrss; /* integral unshared stack (NU) */
long ru_minflt; /* page reclaims (NU) */
long ru_majflt; /* page faults (NU) */
long ru_nswap; /* swaps (NU) */
long ru_inblock; /* block input operations (atomic) */
long ru_oublock; /* block output operations (atomic) */
long ru_msgsnd; /* messages sent (atomic) */
long ru_msgrcv; /* messages received (atomic) */
long ru_nsignals; /* signals received (atomic) */
long ru_nvcsw; /* voluntary context switches (atomic) */
long ru_nivcsw; /* involuntary " */
#define ru_last ru_nivcsw /* internal: ruadd() range end */
#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
};
#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL
/*
* Flavors for proc_pid_rusage().
*/
#define RUSAGE_INFO_V0 0
#define RUSAGE_INFO_V1 1
#define RUSAGE_INFO_V2 2
#define RUSAGE_INFO_V3 3
#define RUSAGE_INFO_V4 4
#define RUSAGE_INFO_V5 5
#define RUSAGE_INFO_V6 6
#define RUSAGE_INFO_CURRENT RUSAGE_INFO_V6
/*
* Flags for RUSAGE_INFO_V5
*/
#define RU_PROC_RUNS_RESLIDE 0x00000001 /* proc has reslid shared cache */
typedef void *rusage_info_t;
struct rusage_info_v0 {
uint8_t ri_uuid[16];
uint64_t ri_user_time;
uint64_t ri_system_time;
uint64_t ri_pkg_idle_wkups;
uint64_t ri_interrupt_wkups;
uint64_t ri_pageins;
uint64_t ri_wired_size;
uint64_t ri_resident_size;
uint64_t ri_phys_footprint;
uint64_t ri_proc_start_abstime;
uint64_t ri_proc_exit_abstime;
};
struct rusage_info_v1 {
uint8_t ri_uuid[16];
uint64_t ri_user_time;
uint64_t ri_system_time;
uint64_t ri_pkg_idle_wkups;
uint64_t ri_interrupt_wkups;
uint64_t ri_pageins;
uint64_t ri_wired_size;
uint64_t ri_resident_size;
uint64_t ri_phys_footprint;
uint64_t ri_proc_start_abstime;
uint64_t ri_proc_exit_abstime;
uint64_t ri_child_user_time;
uint64_t ri_child_system_time;
uint64_t ri_child_pkg_idle_wkups;
uint64_t ri_child_interrupt_wkups;
uint64_t ri_child_pageins;
uint64_t ri_child_elapsed_abstime;
};
struct rusage_info_v2 {
uint8_t ri_uuid[16];
uint64_t ri_user_time;
uint64_t ri_system_time;
uint64_t ri_pkg_idle_wkups;
uint64_t ri_interrupt_wkups;
uint64_t ri_pageins;
uint64_t ri_wired_size;
uint64_t ri_resident_size;
uint64_t ri_phys_footprint;
uint64_t ri_proc_start_abstime;
uint64_t ri_proc_exit_abstime;
uint64_t ri_child_user_time;
uint64_t ri_child_system_time;
uint64_t ri_child_pkg_idle_wkups;
uint64_t ri_child_interrupt_wkups;
uint64_t ri_child_pageins;
uint64_t ri_child_elapsed_abstime;
uint64_t ri_diskio_bytesread;
uint64_t ri_diskio_byteswritten;
};
struct rusage_info_v3 {
uint8_t ri_uuid[16];
uint64_t ri_user_time;
uint64_t ri_system_time;
uint64_t ri_pkg_idle_wkups;
uint64_t ri_interrupt_wkups;
uint64_t ri_pageins;
uint64_t ri_wired_size;
uint64_t ri_resident_size;
uint64_t ri_phys_footprint;
uint64_t ri_proc_start_abstime;
uint64_t ri_proc_exit_abstime;
uint64_t ri_child_user_time;
uint64_t ri_child_system_time;
uint64_t ri_child_pkg_idle_wkups;
uint64_t ri_child_interrupt_wkups;
uint64_t ri_child_pageins;
uint64_t ri_child_elapsed_abstime;
uint64_t ri_diskio_bytesread;
uint64_t ri_diskio_byteswritten;
uint64_t ri_cpu_time_qos_default;
uint64_t ri_cpu_time_qos_maintenance;
uint64_t ri_cpu_time_qos_background;
uint64_t ri_cpu_time_qos_utility;
uint64_t ri_cpu_time_qos_legacy;
uint64_t ri_cpu_time_qos_user_initiated;
uint64_t ri_cpu_time_qos_user_interactive;
uint64_t ri_billed_system_time;
uint64_t ri_serviced_system_time;
};
struct rusage_info_v4 {
uint8_t ri_uuid[16];
uint64_t ri_user_time;
uint64_t ri_system_time;
uint64_t ri_pkg_idle_wkups;
uint64_t ri_interrupt_wkups;
uint64_t ri_pageins;
uint64_t ri_wired_size;
uint64_t ri_resident_size;
uint64_t ri_phys_footprint;
uint64_t ri_proc_start_abstime;
uint64_t ri_proc_exit_abstime;
uint64_t ri_child_user_time;
uint64_t ri_child_system_time;
uint64_t ri_child_pkg_idle_wkups;
uint64_t ri_child_interrupt_wkups;
uint64_t ri_child_pageins;
uint64_t ri_child_elapsed_abstime;
uint64_t ri_diskio_bytesread;
uint64_t ri_diskio_byteswritten;
uint64_t ri_cpu_time_qos_default;
uint64_t ri_cpu_time_qos_maintenance;
uint64_t ri_cpu_time_qos_background;
uint64_t ri_cpu_time_qos_utility;
uint64_t ri_cpu_time_qos_legacy;
uint64_t ri_cpu_time_qos_user_initiated;
uint64_t ri_cpu_time_qos_user_interactive;
uint64_t ri_billed_system_time;
uint64_t ri_serviced_system_time;
uint64_t ri_logical_writes;
uint64_t ri_lifetime_max_phys_footprint;
uint64_t ri_instructions;
uint64_t ri_cycles;
uint64_t ri_billed_energy;
uint64_t ri_serviced_energy;
uint64_t ri_interval_max_phys_footprint;
uint64_t ri_runnable_time;
};
struct rusage_info_v5 {
uint8_t ri_uuid[16];
uint64_t ri_user_time;
uint64_t ri_system_time;
uint64_t ri_pkg_idle_wkups;
uint64_t ri_interrupt_wkups;
uint64_t ri_pageins;
uint64_t ri_wired_size;
uint64_t ri_resident_size;
uint64_t ri_phys_footprint;
uint64_t ri_proc_start_abstime;
uint64_t ri_proc_exit_abstime;
uint64_t ri_child_user_time;
uint64_t ri_child_system_time;
uint64_t ri_child_pkg_idle_wkups;
uint64_t ri_child_interrupt_wkups;
uint64_t ri_child_pageins;
uint64_t ri_child_elapsed_abstime;
uint64_t ri_diskio_bytesread;
uint64_t ri_diskio_byteswritten;
uint64_t ri_cpu_time_qos_default;
uint64_t ri_cpu_time_qos_maintenance;
uint64_t ri_cpu_time_qos_background;
uint64_t ri_cpu_time_qos_utility;
uint64_t ri_cpu_time_qos_legacy;
uint64_t ri_cpu_time_qos_user_initiated;
uint64_t ri_cpu_time_qos_user_interactive;
uint64_t ri_billed_system_time;
uint64_t ri_serviced_system_time;
uint64_t ri_logical_writes;
uint64_t ri_lifetime_max_phys_footprint;
uint64_t ri_instructions;
uint64_t ri_cycles;
uint64_t ri_billed_energy;
uint64_t ri_serviced_energy;
uint64_t ri_interval_max_phys_footprint;
uint64_t ri_runnable_time;
uint64_t ri_flags;
};
struct rusage_info_v6 {
uint8_t ri_uuid[16];
uint64_t ri_user_time;
uint64_t ri_system_time;
uint64_t ri_pkg_idle_wkups;
uint64_t ri_interrupt_wkups;
uint64_t ri_pageins;
uint64_t ri_wired_size;
uint64_t ri_resident_size;
uint64_t ri_phys_footprint;
uint64_t ri_proc_start_abstime;
uint64_t ri_proc_exit_abstime;
uint64_t ri_child_user_time;
uint64_t ri_child_system_time;
uint64_t ri_child_pkg_idle_wkups;
uint64_t ri_child_interrupt_wkups;
uint64_t ri_child_pageins;
uint64_t ri_child_elapsed_abstime;
uint64_t ri_diskio_bytesread;
uint64_t ri_diskio_byteswritten;
uint64_t ri_cpu_time_qos_default;
uint64_t ri_cpu_time_qos_maintenance;
uint64_t ri_cpu_time_qos_background;
uint64_t ri_cpu_time_qos_utility;
uint64_t ri_cpu_time_qos_legacy;
uint64_t ri_cpu_time_qos_user_initiated;
uint64_t ri_cpu_time_qos_user_interactive;
uint64_t ri_billed_system_time;
uint64_t ri_serviced_system_time;
uint64_t ri_logical_writes;
uint64_t ri_lifetime_max_phys_footprint;
uint64_t ri_instructions;
uint64_t ri_cycles;
uint64_t ri_billed_energy;
uint64_t ri_serviced_energy;
uint64_t ri_interval_max_phys_footprint;
uint64_t ri_runnable_time;
uint64_t ri_flags;
uint64_t ri_user_ptime;
uint64_t ri_system_ptime;
uint64_t ri_pinstructions;
uint64_t ri_pcycles;
uint64_t ri_energy_nj;
uint64_t ri_penergy_nj;
uint64_t ri_secure_time_in_system;
uint64_t ri_secure_ptime_in_system;
uint64_t ri_reserved[12];
};
typedef struct rusage_info_v6 rusage_info_current;
#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
#ifdef KERNEL
struct rusage_superset {
struct rusage ru;
rusage_info_current ri;
};
struct rusage_info_child {
uint64_t ri_child_user_time;
uint64_t ri_child_system_time;
uint64_t ri_child_pkg_idle_wkups;
uint64_t ri_child_interrupt_wkups;
uint64_t ri_child_pageins;
uint64_t ri_child_elapsed_abstime;
};
struct user64_rusage {
struct user64_timeval ru_utime; /* user time used */
struct user64_timeval ru_stime; /* system time used */
user64_long_t ru_maxrss; /* max resident set size */
user64_long_t ru_ixrss; /* integral shared memory size */
user64_long_t ru_idrss; /* integral unshared data " */
user64_long_t ru_isrss; /* integral unshared stack " */
user64_long_t ru_minflt; /* page reclaims */
user64_long_t ru_majflt; /* page faults */
user64_long_t ru_nswap; /* swaps */
user64_long_t ru_inblock; /* block input operations */
user64_long_t ru_oublock; /* block output operations */
user64_long_t ru_msgsnd; /* messages sent */
user64_long_t ru_msgrcv; /* messages received */
user64_long_t ru_nsignals; /* signals received */
user64_long_t ru_nvcsw; /* voluntary context switches */
user64_long_t ru_nivcsw; /* involuntary " */
};
struct user32_rusage {
struct user32_timeval ru_utime; /* user time used */
struct user32_timeval ru_stime; /* system time used */
user32_long_t ru_maxrss; /* max resident set size */
user32_long_t ru_ixrss; /* integral shared memory size */
user32_long_t ru_idrss; /* integral unshared data " */
user32_long_t ru_isrss; /* integral unshared stack " */
user32_long_t ru_minflt; /* page reclaims */
user32_long_t ru_majflt; /* page faults */
user32_long_t ru_nswap; /* swaps */
user32_long_t ru_inblock; /* block input operations */
user32_long_t ru_oublock; /* block output operations */
user32_long_t ru_msgsnd; /* messages sent */
user32_long_t ru_msgrcv; /* messages received */
user32_long_t ru_nsignals; /* signals received */
user32_long_t ru_nvcsw; /* voluntary context switches */
user32_long_t ru_nivcsw; /* involuntary " */
};
#endif /* KERNEL */
/*****
* RESOURCE LIMITS
*/
/*
* Symbolic constants for resource limits; since all limits are representable
* as a type rlim_t, we are permitted to define RLIM_SAVED_* in terms of
* RLIM_INFINITY.
*/
#define RLIM_INFINITY (((__uint64_t)1 << 63) - 1) /* no limit */
#define RLIM_SAVED_MAX RLIM_INFINITY /* Unrepresentable hard limit */
#define RLIM_SAVED_CUR RLIM_INFINITY /* Unrepresentable soft limit */
/*
* Possible values of the first parameter to getrlimit()/setrlimit(), to
* indicate for which resource the operation is being performed.
*/
#define RLIMIT_CPU 0 /* cpu time per process */
#define RLIMIT_FSIZE 1 /* file size */
#define RLIMIT_DATA 2 /* data segment size */
#define RLIMIT_STACK 3 /* stack size */
#define RLIMIT_CORE 4 /* core file size */
#define RLIMIT_AS 5 /* address space (resident set size) */
#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL
#define RLIMIT_RSS RLIMIT_AS /* source compatibility alias */
#define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */
#define RLIMIT_NPROC 7 /* number of processes */
#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
#define RLIMIT_NOFILE 8 /* number of open files */
#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL
#define RLIM_NLIMITS 9 /* total number of resource limits */
#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
#define _RLIMIT_POSIX_FLAG 0x1000 /* Set bit for strict POSIX */
/*
* A structure representing a resource limit. The address of an instance
* of this structure is the second parameter to getrlimit()/setrlimit().
*/
struct rlimit {
rlim_t rlim_cur; /* current (soft) limit */
rlim_t rlim_max; /* maximum value for rlim_cur */
};
#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL
/*
* proc_rlimit_control()
*
* Resource limit flavors
*/
#define RLIMIT_WAKEUPS_MONITOR 0x1 /* Configure the wakeups monitor. */
#define RLIMIT_CPU_USAGE_MONITOR 0x2 /* Configure the CPU usage monitor. */
#define RLIMIT_THREAD_CPULIMITS 0x3 /* Configure a blocking, per-thread, CPU limits. */
#define RLIMIT_FOOTPRINT_INTERVAL 0x4 /* Configure memory footprint interval tracking */
/*
* Flags for wakeups monitor control.
*/
#define WAKEMON_ENABLE 0x01
#define WAKEMON_DISABLE 0x02
#define WAKEMON_GET_PARAMS 0x04
#define WAKEMON_SET_DEFAULTS 0x08
#define WAKEMON_MAKE_FATAL 0x10 /* Configure the task so that violations are fatal. */
/*
* Flags for CPU usage monitor control.
*/
#define CPUMON_MAKE_FATAL 0x1000
/*
* Flags for memory footprint interval tracking.
*/
#define FOOTPRINT_INTERVAL_RESET 0x1 /* Reset the footprint interval counter to zero */
struct proc_rlimit_control_wakeupmon {
uint32_t wm_flags;
int32_t wm_rate;
};
#if PRIVATE
/*
* Flags for I/O monitor control.
*/
#define IOMON_ENABLE 0x01
#define IOMON_DISABLE 0x02
#endif /* PRIVATE */
/* I/O type */
#define IOPOL_TYPE_DISK 0
#if PRIVATE
#define IOPOL_TYPE_VFS_HFS_CASE_SENSITIVITY 1
#endif
#define IOPOL_TYPE_VFS_ATIME_UPDATES 2
#define IOPOL_TYPE_VFS_MATERIALIZE_DATALESS_FILES 3
#define IOPOL_TYPE_VFS_STATFS_NO_DATA_VOLUME 4
#define IOPOL_TYPE_VFS_TRIGGER_RESOLVE 5
#define IOPOL_TYPE_VFS_IGNORE_CONTENT_PROTECTION 6
#define IOPOL_TYPE_VFS_IGNORE_PERMISSIONS 7
#define IOPOL_TYPE_VFS_SKIP_MTIME_UPDATE 8
#define IOPOL_TYPE_VFS_ALLOW_LOW_SPACE_WRITES 9
#define IOPOL_TYPE_VFS_DISALLOW_RW_FOR_O_EVTONLY 10
#if PRIVATE
#define IOPOL_TYPE_VFS_ALTLINK 11
#define IOPOL_TYPE_VFS_NOCACHE_WRITE_FS_BLKSIZE 12
#endif
/* scope */
#define IOPOL_SCOPE_PROCESS 0
#define IOPOL_SCOPE_THREAD 1
#define IOPOL_SCOPE_DARWIN_BG 2
/* I/O Priority */
#define IOPOL_DEFAULT 0
#define IOPOL_IMPORTANT 1
#define IOPOL_PASSIVE 2
#define IOPOL_THROTTLE 3
#define IOPOL_UTILITY 4
#define IOPOL_STANDARD 5
/* compatibility with older names */
#define IOPOL_APPLICATION IOPOL_STANDARD
#define IOPOL_NORMAL IOPOL_IMPORTANT
#if PRIVATE
#define IOPOL_VFS_HFS_CASE_SENSITIVITY_DEFAULT 0
#define IOPOL_VFS_HFS_CASE_SENSITIVITY_FORCE_CASE_SENSITIVE 1
#define IOPOL_VFS_ALTLINK_DISABLED 0
#define IOPOL_VFS_ALTLINK_ENABLED 1
#endif
#define IOPOL_ATIME_UPDATES_DEFAULT 0
#define IOPOL_ATIME_UPDATES_OFF 1
#define IOPOL_MATERIALIZE_DATALESS_FILES_DEFAULT 0
#define IOPOL_MATERIALIZE_DATALESS_FILES_OFF 1
#define IOPOL_MATERIALIZE_DATALESS_FILES_ON 2
#define IOPOL_VFS_STATFS_NO_DATA_VOLUME_DEFAULT 0
#define IOPOL_VFS_STATFS_FORCE_NO_DATA_VOLUME 1
#define IOPOL_VFS_TRIGGER_RESOLVE_DEFAULT 0
#define IOPOL_VFS_TRIGGER_RESOLVE_OFF 1
#define IOPOL_VFS_CONTENT_PROTECTION_DEFAULT 0
#define IOPOL_VFS_CONTENT_PROTECTION_IGNORE 1
#define IOPOL_VFS_IGNORE_PERMISSIONS_OFF 0
#define IOPOL_VFS_IGNORE_PERMISSIONS_ON 1
#define IOPOL_VFS_SKIP_MTIME_UPDATE_OFF 0
#define IOPOL_VFS_SKIP_MTIME_UPDATE_ON 1
#define IOPOL_VFS_ALLOW_LOW_SPACE_WRITES_OFF 0
#define IOPOL_VFS_ALLOW_LOW_SPACE_WRITES_ON 1
#define IOPOL_VFS_DISALLOW_RW_FOR_O_EVTONLY_DEFAULT 0
#define IOPOL_VFS_DISALLOW_RW_FOR_O_EVTONLY_ON 1
#define IOPOL_VFS_NOCACHE_WRITE_FS_BLKSIZE_DEFAULT 0
#define IOPOL_VFS_NOCACHE_WRITE_FS_BLKSIZE_ON 1
#ifdef PRIVATE
/*
* Structures for use in communicating via iopolicysys() between Libc and the
* kernel. Not to be used by user programs directly.
*/
/*
* the command to iopolicysys()
*/
#define IOPOL_CMD_GET 0x00000001 /* Get I/O policy */
#define IOPOL_CMD_SET 0x00000002 /* Set I/O policy */
/*
* Second parameter to iopolicysys()
*/
struct _iopol_param_t {
int iop_scope; /* current process or a thread */
int iop_iotype;
int iop_policy;
};
#endif /* PRIVATE */
#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
#ifndef KERNEL
__BEGIN_DECLS
int getpriority(int, id_t);
#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL
int getiopolicy_np(int, int) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0);
#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
int getrlimit(int, struct rlimit *) __DARWIN_ALIAS(getrlimit);
int getrusage(int, struct rusage *);
int setpriority(int, id_t, int);
#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL
int setiopolicy_np(int, int, int) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0);
#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
int setrlimit(int, const struct rlimit *) __DARWIN_ALIAS(setrlimit);
__END_DECLS
#endif /* !KERNEL */
#endif /* !_SYS_RESOURCE_H_ */