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29 * @(#)resource.h 8.4 (Berkeley) 1/9/95
33 #ifndef _SYS_RESOURCE_H_
34 #define _SYS_RESOURCE_H_
36 #include <sys/cdefs.h>
37 #include <sys/_timeval.h>
38 #include <sys/_types.h>
41 * Process priority specifications to get/setpriority.
46 #define PRIO_PROCESS 0
51 * Resource utilization information.
53 * All fields are only modified by curthread and
54 * no locks are required to read.
58 #define RUSAGE_CHILDREN -1
59 #define RUSAGE_THREAD 1
62 struct timeval ru_utime; /* user time used */
63 struct timeval ru_stime; /* system time used */
64 long ru_maxrss; /* max resident set size */
65 #define ru_first ru_ixrss
66 long ru_ixrss; /* integral shared memory size */
67 long ru_idrss; /* integral unshared data " */
68 long ru_isrss; /* integral unshared stack " */
69 long ru_minflt; /* page reclaims */
70 long ru_majflt; /* page faults */
71 long ru_nswap; /* swaps */
72 long ru_inblock; /* block input operations */
73 long ru_oublock; /* block output operations */
74 long ru_msgsnd; /* messages sent */
75 long ru_msgrcv; /* messages received */
76 long ru_nsignals; /* signals received */
77 long ru_nvcsw; /* voluntary context switches */
78 long ru_nivcsw; /* involuntary " */
79 #define ru_last ru_nivcsw
84 struct rusage wru_self;
85 struct rusage wru_children;
92 #define RLIMIT_CPU 0 /* maximum cpu time in seconds */
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 (incl. mmap) */
103 #define RLIMIT_AS RLIMIT_VMEM /* standard name for RLIMIT_VMEM */
104 #define RLIMIT_NPTS 11 /* pseudo-terminals */
105 #define RLIMIT_SWAP 12 /* swap used */
107 #define RLIM_NLIMITS 13 /* number of resource limits */
109 #define RLIM_INFINITY ((rlim_t)(((uint64_t)1 << 63) - 1))
110 /* XXX Missing: RLIM_SAVED_MAX, RLIM_SAVED_CUR */
114 * Resource limit string identifiers
118 static const char *rlimit_ident[RLIM_NLIMITS] = {
135 #ifndef _RLIM_T_DECLARED
136 typedef __rlim_t rlim_t;
137 #define _RLIM_T_DECLARED
141 rlim_t rlim_cur; /* current (soft) limit */
142 rlim_t rlim_max; /* maximum value for rlim_cur */
148 __int32_t rlim_cur; /* current (soft) limit */
149 __int32_t rlim_max; /* maximum value for rlim_cur */
164 #endif /* __BSD_VISIBLE */
168 extern struct loadavg averunnable;
169 void read_cpu_time(long *cp_time); /* Writes array of CPUSTATES */
174 /* XXX 2nd arg to [gs]etpriority() should be an id_t */
175 int getpriority(int, int);
176 int getrlimit(int, struct rlimit *);
177 int getrusage(int, struct rusage *);
178 int setpriority(int, int, int);
179 int setrlimit(int, const struct rlimit *);
183 #endif /* !_SYS_RESOURCE_H_ */