X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/d7e50217d7adf6e52786a38bcaa4cd698cb9a79e..b7266188b87f3620ec3f9f717e57194a7dd989fe:/bsd/sys/resource.h diff --git a/bsd/sys/resource.h b/bsd/sys/resource.h index df6c74927..72c969c12 100644 --- a/bsd/sys/resource.h +++ b/bsd/sys/resource.h @@ -1,16 +1,19 @@ /* - * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2008 Apple Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ - * - * Copyright (c) 1999-2003 Apple Computer, 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. Please obtain a copy of the License at - * http://www.opensource.apple.com/apsl/ and read it before using this - * file. + * 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 @@ -20,7 +23,7 @@ * Please see the License for the specific language governing rights and * limitations under the License. * - * @APPLE_LICENSE_HEADER_END@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ /* @@ -62,93 +65,256 @@ #define _SYS_RESOURCE_H_ #include +#include +#include + + +/* [XSI] The timeval structure shall be defined as described in + * + */ +#define __need_struct_timeval +#ifdef KERNEL +#define __need_struct_user32_timeval +#define __need_struct_user64_timeval +#endif +#include + +/* 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 + + +/* + * 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 !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) +#define PRIO_DARWIN_THREAD 3 /* Second argument is always 0 (current thread) */ +#define PRIO_DARWIN_PROCESS 4 /* Second argument is a PID */ /* - * Process priority specifications to get/setpriority. + * Range limitations for the value of the third parameter to setpriority(). */ #define PRIO_MIN -20 #define PRIO_MAX 20 -#define PRIO_PROCESS 0 -#define PRIO_PGRP 1 -#define PRIO_USER 2 +/* + * 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 + +#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ -/* - * Resource utilization information. + + +/***** + * RESOURCE USAGE */ -#define RUSAGE_SELF 0 -#define RUSAGE_CHILDREN -1 +/* + * 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 */ - struct timeval ru_stime; /* system time used */ - long ru_maxrss; /* max resident set size */ -#define ru_first ru_ixrss - 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 */ + struct timeval ru_utime; /* user time used (PL) */ + struct timeval ru_stime; /* system time used (PL) */ +#if defined(_POSIX_C_SOURCE) && !defined(_DARWIN_C_SOURCE) + long ru_opaque[14]; /* implementation defined */ +#else /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ + /* + * 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 +#define ru_last ru_nivcsw /* internal: ruadd() range end */ +#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ }; + +#ifdef KERNEL + +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 + */ + /* - * 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 RLIMIT_CPU 0 /* cpu time in milliseconds */ -#define RLIMIT_FSIZE 1 /* maximum file size */ -#define RLIMIT_DATA 2 /* data size */ +#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_RSS 5 /* resident set size */ +#define RLIMIT_AS 5 /* address space (resident set size) */ +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_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 || _DARWIN_C_SOURCE) */ #define RLIMIT_NOFILE 8 /* number of open files */ +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) +#define RLIM_NLIMITS 9 /* total number of resource limits */ +#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ +#define _RLIMIT_POSIX_FLAG 0x1000 /* Set bit for strict POSIX */ -#define RLIM_NLIMITS 9 /* number of resource limits */ - -#define RLIM_INFINITY (((u_quad_t)1 << 63) - 1) - -struct orlimit { - int32_t rlim_cur; /* current (soft) limit */ - int32_t rlim_max; /* maximum value for rlim_cur */ -}; - +/* + * 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 */ }; -/* Load average structure. */ -struct loadavg { - fixpt_t ldavg[3]; - long fscale; +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) +/* I/O type */ +#define IOPOL_TYPE_DISK 0 + +/* scope */ +#define IOPOL_SCOPE_PROCESS 0 +#define IOPOL_SCOPE_THREAD 1 + +/* I/O Priority */ +#define IOPOL_DEFAULT 0 +#define IOPOL_NORMAL 1 +#define IOPOL_PASSIVE 2 +#define IOPOL_THROTTLE 3 + +#ifdef PRIVATE +/* + * Structures for use in communicating via iopolicysys() between Lic and the + * kernel. Not to be used by uesr 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; }; -#ifdef KERNEL -#ifdef __APPLE_API_PRIVATE -extern struct loadavg averunnable; -#define LSCALE 1000 /* scaling for "fixed point" arithmetic */ -#endif /* __APPLE_API_PRIVATE */ -#else -#include +#endif /* PRIVATE */ +#endif /* !_POSIX_C_SOURCE || _DARWIN_C_SOURCE */ + +#ifndef KERNEL __BEGIN_DECLS -int getpriority __P((int, int)); -int getrlimit __P((int, struct rlimit *)); -int getrusage __P((int, struct rusage *)); -int setpriority __P((int, int, int)); -int setrlimit __P((int, const struct rlimit *)); +int getpriority(int, id_t); +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) +int getiopolicy_np(int, int); +#endif /* !_POSIX_C_SOURCE || _DARWIN_C_SOURCE */ +int getrlimit(int, struct rlimit *) __DARWIN_ALIAS(getrlimit); +int getrusage(int, struct rusage *); +int setpriority(int, id_t, int); +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) +int setiopolicy_np(int, int, int); +#endif /* !_POSIX_C_SOURCE || _DARWIN_C_SOURCE */ +int setrlimit(int, const struct rlimit *) __DARWIN_ALIAS(setrlimit); __END_DECLS -#endif /* KERNEL */ +#endif /* !KERNEL */ #endif /* !_SYS_RESOURCE_H_ */