/*
- * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2008 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * 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.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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 OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * 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_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
/*
#define _SYS_RESOURCE_H_
#include <sys/appleapiopts.h>
+#include <sys/cdefs.h>
+#include <sys/_types.h>
+
+
+/* [XSI] The timeval structure shall be defined as described in
+ * <sys/time.h>
+ */
+#define __need_struct_timeval
+#ifdef KERNEL
+#define __need_struct_user32_timeval
+#define __need_struct_user64_timeval
+#endif
+#include <sys/_structs.h>
+
+/* The id_t type shall be defined as described in <sys/types.h> */
+#ifndef _ID_T
+#define _ID_T
+typedef __darwin_id_t id_t; /* can hold pid_t, gid_t, or uid_t */
+#endif
+
/*
- * Process priority specifications to get/setpriority.
+ * 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 */
+
+/*
+ * 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
-/*
- * Resource utilization information.
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
+
+
+
+/*****
+ * 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 <sys/cdefs.h>
+#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_ */
projects / apple / xnu.git / blobdiff