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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>
37 #include <machine/stdint.h>
38 #include <sys/_timeval.h>
40 /* XXX not used by our {get,set}priority(), defined here for XSI conformance */
41 #ifndef _ID_T_DECLARED
42 #define _ID_T_DECLARED
43 typedef __int64_t id_t; /* general id, can hold gid/pid/uid_t */
46 #ifndef _RLIM_T_DECLARED
47 #define _RLIM_T_DECLARED
48 typedef __rlim_t rlim_t; /* resource limit */
52 * Process priority specifications to get/setpriority.
62 #define PRIO_PROCESS 0
67 * Resource utilization information.
70 #define RUSAGE_CHILDREN -1
73 struct timeval ru_utime; /* user time used */
74 struct timeval ru_stime; /* system time used */
75 long ru_maxrss; /* max resident set size */
76 #define ru_first ru_ixrss
77 long ru_ixrss; /* integral shared memory size */
78 long ru_idrss; /* integral unshared data " */
79 long ru_isrss; /* integral unshared stack " */
80 long ru_minflt; /* page reclaims */
81 long ru_majflt; /* page faults */
82 long ru_nswap; /* swaps */
83 long ru_inblock; /* block input operations */
84 long ru_oublock; /* block output operations */
85 long ru_msgsnd; /* messages sent */
86 long ru_msgrcv; /* messages received */
87 long ru_nsignals; /* signals received */
88 long ru_nvcsw; /* voluntary context switches */
89 long ru_nivcsw; /* involuntary " */
90 #define ru_last ru_nivcsw
96 #define RLIMIT_CPU 0 /* cpu time in milliseconds */
97 #define RLIMIT_FSIZE 1 /* maximum file size */
98 #define RLIMIT_DATA 2 /* data size */
99 #define RLIMIT_STACK 3 /* stack size */
100 #define RLIMIT_CORE 4 /* core file size */
101 #define RLIMIT_RSS 5 /* resident set size */
102 #define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */
103 #define RLIMIT_NPROC 7 /* number of processes */
104 #define RLIMIT_NOFILE 8 /* number of open files */
105 #define RLIMIT_SBSIZE 9 /* maximum size of all socket buffers */
106 #define RLIMIT_VMEM 10 /* virtual process size (inclusive of mmap) */
107 #define RLIMIT_AS RLIMIT_VMEM /* standard name for address space size */
108 #define RLIMIT_POSIXLOCKS 11 /* maximum number of POSIX locks per user */
110 #define RLIM_NLIMITS 12 /* number of resource limits */
112 #define RLIM_INFINITY ((rlim_t)(((__uint64_t)1 << 63) - 1)) /* no limit */
113 #define RLIM_SAVED_MAX RLIM_INFINITY /* unrepresentable hard limit */
114 #define RLIM_SAVED_CUR RLIM_INFINITY /* unrepresentable soft limit */
117 * Resource limit string identifiers
120 static char *rlimit_ident[] = {
137 rlim_t rlim_cur; /* current (soft) limit */
138 rlim_t rlim_max; /* maximum value for rlim_cur */
143 __int32_t rlim_cur; /* current (soft) limit */
144 __int32_t rlim_max; /* maximum value for rlim_cur */
148 __uint64_t ldavg[3]; /* 64-bits to avoid overflow */
153 * CPU state fields as reported by the sysctl kern.cp_time
161 #endif /* __BSD_VISIBLE */
164 extern struct loadavg averunnable;
166 int dosetrlimit(unsigned int which, struct rlimit *limp);
169 int getpriority(int, int); /* XXX should take id_t as second arg */
170 int getrlimit(int, struct rlimit *);
171 int getrusage(int, struct rusage *);
172 int setpriority(int, int, int); /* XXX should take id_t as second arg */
173 int setrlimit(int, const struct rlimit *);
175 int ioprio_get(int, int);
176 int ioprio_set(int, int, int);
181 #endif /* !_SYS_RESOURCE_H_ */