2 * Copyright (c) 1982, 1986, 1993
3 * The Regents of the University of California. All rights reserved.
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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
37 #ifndef _SYS_RESOURCE_H_
38 #define _SYS_RESOURCE_H_
41 * Process priority specifications to get/setpriority.
46 #define PRIO_TOTAL (PRIO_MAX - PRIO_MIN)
49 #define PRIO_PROCESS 0
54 * Resource utilization information.
58 #define RUSAGE_CHILDREN -1
61 struct timeval ru_utime; /* user time used */
62 struct timeval ru_stime; /* system time used */
63 long ru_maxrss; /* max resident set size */
64 #define ru_first ru_ixrss
65 long ru_ixrss; /* integral shared memory size */
66 long ru_idrss; /* integral unshared data " */
67 long ru_isrss; /* integral unshared stack " */
68 long ru_minflt; /* page reclaims */
69 long ru_majflt; /* page faults */
70 long ru_nswap; /* swaps */
71 long ru_inblock; /* block input operations */
72 long ru_oublock; /* block output operations */
73 long ru_msgsnd; /* messages sent */
74 long ru_msgrcv; /* messages received */
75 long ru_nsignals; /* signals received */
76 long ru_nvcsw; /* voluntary context switches */
77 long ru_nivcsw; /* involuntary " */
78 #define ru_last ru_nivcsw
84 #define RLIMIT_CPU 0 /* cpu time in milliseconds */
85 #define RLIMIT_FSIZE 1 /* maximum file size */
86 #define RLIMIT_DATA 2 /* data size */
87 #define RLIMIT_STACK 3 /* stack size */
88 #define RLIMIT_CORE 4 /* core file size */
89 #define RLIMIT_RSS 5 /* resident set size */
90 #define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */
91 #define RLIMIT_NPROC 7 /* number of processes */
92 #define RLIMIT_NOFILE 8 /* number of open files */
93 #define RLIMIT_SBSIZE 9 /* maximum size of all socket buffers */
95 #define RLIM_NLIMITS 10 /* number of resource limits */
97 #define RLIM_INFINITY ((rlim_t)(((u_quad_t)1 << 63) - 1))
101 * Resource limit string identifiers
105 static char *rlimit_ident[] = {
120 int32_t rlim_cur; /* current (soft) limit */
121 int32_t rlim_max; /* maximum value for rlim_cur */
125 rlim_t rlim_cur; /* current (soft) limit */
126 rlim_t rlim_max; /* maximum value for rlim_cur */
129 /* Load average structure. */
136 extern struct loadavg averunnable;
138 int dosetrlimit __P((struct proc *, u_int, struct rlimit *));
141 #include <sys/cdefs.h>
144 int getpriority __P((int, int));
145 int getrlimit __P((int, struct rlimit *));
146 int getrusage __P((int, struct rusage *));
147 int setpriority __P((int, int, int));
148 int setrlimit __P((int, const struct rlimit *));
152 #endif /* !_SYS_RESOURCE_H_ */