X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/21362eb3e66fd2c787aee132bce100a44d71a99c..bca245acd4c03fd752d1a45f011ad495e60fe53d:/bsd/sys/resource.h diff --git a/bsd/sys/resource.h b/bsd/sys/resource.h index 65cece77f..0cc5a3983 100644 --- a/bsd/sys/resource.h +++ b/bsd/sys/resource.h @@ -1,8 +1,8 @@ /* - * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved. + * 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 @@ -11,10 +11,10 @@ * 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, @@ -22,7 +22,7 @@ * 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 */ @@ -62,38 +62,37 @@ */ #ifndef _SYS_RESOURCE_H_ -#define _SYS_RESOURCE_H_ +#define _SYS_RESOURCE_H_ #include #include #include +#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL +#include +#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ + +#ifndef KERNEL +#include +#endif /* [XSI] The timeval structure shall be defined as described in * - * - * NB: We use __darwin_time_t and __darwin_suseconds_t here to avoid - * improperly exposing time_t and suseconds_t into the namespace. */ -#ifndef _TIMEVAL -#define _TIMEVAL -struct timeval { - __darwin_time_t tv_sec; /* seconds */ - __darwin_suseconds_t tv_usec; /* and microseconds */ -}; +#include +#ifdef KERNEL +#include +#include #endif /* The id_t type shall be defined as described in */ -#ifndef _ID_T -#define _ID_T -typedef __darwin_id_t id_t; /* can hold pid_t, gid_t, or uid_t */ -#endif +#include /* * Resource limit type (low 63 bits, excluding the sign bit) */ -typedef __int64_t rlim_t; +typedef __uint64_t rlim_t; /***** @@ -104,17 +103,53 @@ typedef __int64_t rlim_t; * 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 */ +#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 */ + +#endif /* PRIVATE */ -#ifndef _POSIX_C_SOURCE /* * Range limitations for the value of the third parameter to setpriority(). */ -#define PRIO_MIN -20 -#define PRIO_MAX 20 -#endif /* !_POSIX_C_SOURCE */ +#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 */ @@ -126,8 +161,8 @@ typedef __int64_t rlim_t; * 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 */ +#define RUSAGE_SELF 0 /* Current process information */ +#define RUSAGE_CHILDREN -1 /* Current process' children */ /* * A structure representing an accounting of resource utilization. The @@ -138,79 +173,234 @@ typedef __int64_t rlim_t; * 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 */ - struct timeval ru_stime; /* system time used */ -#ifdef _POSIX_C_SOURCE - long ru_opaque[14]; /* implementation defined */ -#else /* !_POSIX_C_SOURCE */ +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 */ -#define ru_first ru_ixrss /* internal: ruadd() range start */ - long ru_ixrss; /* integral shared memory size */ - long ru_idrss; /* integral unshared data " */ - long ru_isrss; /* integral unshared stack " */ - long ru_minflt; /* page reclaims */ - long ru_majflt; /* page faults */ - long ru_nswap; /* swaps */ - long ru_inblock; /* block input operations */ - long ru_oublock; /* block output operations */ - long ru_msgsnd; /* messages sent */ - long ru_msgrcv; /* messages received */ - long ru_nsignals; /* signals received */ - long ru_nvcsw; /* voluntary context switches */ - long ru_nivcsw; /* involuntary " */ -#define ru_last ru_nivcsw /* internal: ruadd() range end */ -#endif /* !_POSIX_C_SOURCE */ + 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_CURRENT RUSAGE_INFO_V4 + +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; +}; + +typedef struct rusage_info_v4 rusage_info_current; +#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ -// LP64todo - should this move? #ifdef KERNEL -#include /* user_time_t */ -/* LP64 version of struct timeval. time_t is a long and must grow when - * we're dealing with a 64-bit process. - * WARNING - keep in sync with struct timeval - */ +struct rusage_superset { + struct rusage ru; + rusage_info_current ri; +}; -#if __DARWIN_ALIGN_NATURAL -#pragma options align=natural -#endif +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 user_rusage_timeval { - user_time_t tv_sec; /* seconds */ - __darwin_suseconds_t tv_usec; /* and microseconds */ -}; -struct user_rusage { - struct user_rusage_timeval ru_utime; /* user time used */ - struct user_rusage_timeval ru_stime; /* system time used */ - user_long_t ru_maxrss; /* max resident set size */ - user_long_t ru_ixrss; /* integral shared memory size */ - user_long_t ru_idrss; /* integral unshared data " */ - user_long_t ru_isrss; /* integral unshared stack " */ - user_long_t ru_minflt; /* page reclaims */ - user_long_t ru_majflt; /* page faults */ - user_long_t ru_nswap; /* swaps */ - user_long_t ru_inblock; /* block input operations */ - user_long_t ru_oublock; /* block output operations */ - user_long_t ru_msgsnd; /* messages sent */ - user_long_t ru_msgrcv; /* messages received */ - user_long_t ru_nsignals; /* signals received */ - user_long_t ru_nvcsw; /* voluntary context switches */ - user_long_t ru_nivcsw; /* involuntary " */ +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 " */ }; -#if __DARWIN_ALIGN_NATURAL -#pragma options align=reset -#endif +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 +#endif /* KERNEL */ /***** @@ -222,49 +412,165 @@ struct user_rusage { * 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 */ +#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, in ms */ -#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) */ -#ifndef _POSIX_C_SOURCE -#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 /* !_POSIX_C_SOURCE */ -#define RLIMIT_NOFILE 8 /* number of open files */ -#ifndef _POSIX_C_SOURCE -#define RLIM_NLIMITS 9 /* total number of resource limits */ -#endif /* !_POSIX_C_SOURCE */ +#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 */ + 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 + +/* 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 +#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 + +#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); -int getrlimit(int, struct rlimit *); -int getrusage(int, struct rusage *); -int setpriority(int, id_t, int); -int setrlimit(int, const struct rlimit *); +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_ */ +#endif /* !KERNEL */ +#endif /* !_SYS_RESOURCE_H_ */