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29 * @(#)resource.h 8.4 (Berkeley) 1/9/95
30 * $FreeBSD: src/sys/sys/resource.h,v 1.12.2.2 2002/08/20 18:42:20 dillon Exp $
33 #ifndef _SYS_RESOURCE_H_
34 #define _SYS_RESOURCE_H_
36 #include <sys/cdefs.h>
38 #include <sys/types.h>
40 #include <sys/_timeval.h>
43 * Process priority specifications to get/setpriority.
53 #define PRIO_PROCESS 0
58 * Resource utilization information.
62 #define RUSAGE_CHILDREN -1
65 struct timeval ru_utime; /* user time used */
66 struct timeval ru_stime; /* system time used */
67 long ru_maxrss; /* max resident set size */
68 #define ru_first ru_ixrss
69 long ru_ixrss; /* integral shared memory size */
70 long ru_idrss; /* integral unshared data " */
71 long ru_isrss; /* integral unshared stack " */
72 long ru_minflt; /* page reclaims */
73 long ru_majflt; /* page faults */
74 long ru_nswap; /* swaps */
75 long ru_inblock; /* block input operations */
76 long ru_oublock; /* block output operations */
77 long ru_msgsnd; /* messages sent */
78 long ru_msgrcv; /* messages received */
79 long ru_nsignals; /* signals received */
80 long ru_nvcsw; /* voluntary context switches */
81 long ru_nivcsw; /* involuntary " */
82 #define ru_last ru_nivcsw
88 #define RLIMIT_CPU 0 /* cpu time in milliseconds */
89 #define RLIMIT_FSIZE 1 /* maximum file size */
90 #define RLIMIT_DATA 2 /* data size */
91 #define RLIMIT_STACK 3 /* stack size */
92 #define RLIMIT_CORE 4 /* core file size */
93 #define RLIMIT_RSS 5 /* resident set size */
94 #define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */
95 #define RLIMIT_NPROC 7 /* number of processes */
96 #define RLIMIT_NOFILE 8 /* number of open files */
97 #define RLIMIT_SBSIZE 9 /* maximum size of all socket buffers */
98 #define RLIMIT_VMEM 10 /* virtual process size (inclusive of mmap) */
99 #define RLIMIT_AS RLIMIT_VMEM /* standard name for address space size */
100 #define RLIMIT_POSIXLOCKS 11 /* maximum number of POSIX locks per user */
102 #define RLIM_NLIMITS 12 /* number of resource limits */
104 #define RLIM_INFINITY ((rlim_t)(((u_quad_t)1 << 63) - 1)) /* no limit */
105 #define RLIM_SAVED_MAX RLIM_INFINITY /* unrepresentable hard limit */
106 #define RLIM_SAVED_CUR RLIM_INFINITY /* unrepresentable soft limit */
109 * Resource limit string identifiers
112 static char *rlimit_ident[] = {
129 rlim_t rlim_cur; /* current (soft) limit */
130 rlim_t rlim_max; /* maximum value for rlim_cur */
135 int32_t rlim_cur; /* current (soft) limit */
136 int32_t rlim_max; /* maximum value for rlim_cur */
145 * CPU state fields as reported by the sysctl kern.cp_time
153 #endif /* __BSD_VISIBLE */
156 extern struct loadavg averunnable;
158 int dosetrlimit(u_int which, struct rlimit *limp);
161 int getpriority(int, int);
162 int getrlimit(int, struct rlimit *);
163 int getrusage(int, struct rusage *);
164 int setpriority(int, int, int);
165 int setrlimit(int, const struct rlimit *);
167 int ioprio_get(int, int);
168 int ioprio_set(int, int, int);
173 #endif /* !_SYS_RESOURCE_H_ */