2 * Copyright (c) 1982, 1986, 1993
3 * The Regents of the University of California. All rights reserved.
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6 * modification, are permitted provided that the following conditions
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15 * This product includes software developed by the University of
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33 * @(#)resource.h 8.4 (Berkeley) 1/9/95
34 * $FreeBSD: src/sys/sys/resource.h,v 1.12.2.2 2002/08/20 18:42:20 dillon Exp $
37 #ifndef _SYS_RESOURCE_H_
38 #define _SYS_RESOURCE_H_
40 #include <sys/cdefs.h>
42 #include <sys/types.h>
44 #include <sys/_timeval.h>
47 * Process priority specifications to get/setpriority.
57 #define PRIO_PROCESS 0
62 * Resource utilization information.
66 #define RUSAGE_CHILDREN -1
69 struct timeval ru_utime; /* user time used */
70 struct timeval ru_stime; /* system time used */
71 long ru_maxrss; /* max resident set size */
72 #define ru_first ru_ixrss
73 long ru_ixrss; /* integral shared memory size */
74 long ru_idrss; /* integral unshared data " */
75 long ru_isrss; /* integral unshared stack " */
76 long ru_minflt; /* page reclaims */
77 long ru_majflt; /* page faults */
78 long ru_nswap; /* swaps */
79 long ru_inblock; /* block input operations */
80 long ru_oublock; /* block output operations */
81 long ru_msgsnd; /* messages sent */
82 long ru_msgrcv; /* messages received */
83 long ru_nsignals; /* signals received */
84 long ru_nvcsw; /* voluntary context switches */
85 long ru_nivcsw; /* involuntary " */
86 #define ru_last ru_nivcsw
92 #define RLIMIT_CPU 0 /* cpu time in milliseconds */
93 #define RLIMIT_FSIZE 1 /* maximum file size */
94 #define RLIMIT_DATA 2 /* data size */
95 #define RLIMIT_STACK 3 /* stack size */
96 #define RLIMIT_CORE 4 /* core file size */
97 #define RLIMIT_RSS 5 /* resident set size */
98 #define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */
99 #define RLIMIT_NPROC 7 /* number of processes */
100 #define RLIMIT_NOFILE 8 /* number of open files */
101 #define RLIMIT_SBSIZE 9 /* maximum size of all socket buffers */
102 #define RLIMIT_VMEM 10 /* virtual process size (inclusive of mmap) */
103 #define RLIMIT_AS RLIMIT_VMEM /* standard name for address space size */
104 #define RLIMIT_POSIXLOCKS 11 /* maximum number of POSIX locks per user */
106 #define RLIM_NLIMITS 12 /* number of resource limits */
108 #define RLIM_INFINITY ((rlim_t)(((u_quad_t)1 << 63) - 1)) /* no limit */
109 #define RLIM_SAVED_MAX RLIM_INFINITY /* unrepresentable hard limit */
110 #define RLIM_SAVED_CUR RLIM_INFINITY /* unrepresentable soft limit */
113 * Resource limit string identifiers
116 static char *rlimit_ident[] = {
133 rlim_t rlim_cur; /* current (soft) limit */
134 rlim_t rlim_max; /* maximum value for rlim_cur */
139 int32_t rlim_cur; /* current (soft) limit */
140 int32_t rlim_max; /* maximum value for rlim_cur */
149 * CPU state fields as reported by the sysctl kern.cp_time
157 #endif /* __BSD_VISIBLE */
160 extern struct loadavg averunnable;
162 int dosetrlimit(u_int which, struct rlimit *limp);
165 int getpriority(int, int);
166 int getrlimit(int, struct rlimit *);
167 int getrusage(int, struct rusage *);
168 int setpriority(int, int, int);
169 int setrlimit(int, const struct rlimit *);
171 int ioprio_get(int, int);
172 int ioprio_set(int, int, int);
177 #endif /* !_SYS_RESOURCE_H_ */