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Diffstat (limited to 'sys/sys/resource.h')
| -rw-r--r-- | sys/sys/resource.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/sys/sys/resource.h b/sys/sys/resource.h new file mode 100644 index 000000000000..2e3941d460f6 --- /dev/null +++ b/sys/sys/resource.h @@ -0,0 +1,125 @@ +/* + * Copyright (c) 1982, 1986, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)resource.h 8.4 (Berkeley) 1/9/95 + */ + +#ifndef _SYS_RESOURCE_H_ +#define _SYS_RESOURCE_H_ + +/* + * Process priority specifications to get/setpriority. + */ +#define PRIO_MIN -20 +#define PRIO_MAX 20 + +#define PRIO_PROCESS 0 +#define PRIO_PGRP 1 +#define PRIO_USER 2 + +/* + * Resource utilization information. + */ + +#define RUSAGE_SELF 0 +#define RUSAGE_CHILDREN -1 + +struct rusage { + struct timeval ru_utime; /* user time used */ + struct timeval ru_stime; /* system time used */ + long ru_maxrss; /* max resident set size */ +#define ru_first ru_ixrss + long ru_ixrss; /* integral shared memory size */ + long ru_idrss; /* integral unshared data " */ + long ru_isrss; /* integral unshared stack " */ + long ru_minflt; /* page reclaims */ + long ru_majflt; /* page faults */ + long ru_nswap; /* swaps */ + long ru_inblock; /* block input operations */ + long ru_oublock; /* block output operations */ + long ru_msgsnd; /* messages sent */ + long ru_msgrcv; /* messages received */ + long ru_nsignals; /* signals received */ + long ru_nvcsw; /* voluntary context switches */ + long ru_nivcsw; /* involuntary " */ +#define ru_last ru_nivcsw +}; + +/* + * Resource limits + */ +#define RLIMIT_CPU 0 /* cpu time in milliseconds */ +#define RLIMIT_FSIZE 1 /* maximum file size */ +#define RLIMIT_DATA 2 /* data size */ +#define RLIMIT_STACK 3 /* stack size */ +#define RLIMIT_CORE 4 /* core file size */ +#define RLIMIT_RSS 5 /* resident set size */ +#define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */ +#define RLIMIT_NPROC 7 /* number of processes */ +#define RLIMIT_NOFILE 8 /* number of open files */ + +#define RLIM_NLIMITS 9 /* number of resource limits */ + +#define RLIM_INFINITY (((u_quad_t)1 << 63) - 1) + +struct orlimit { + int32_t rlim_cur; /* current (soft) limit */ + int32_t rlim_max; /* maximum value for rlim_cur */ +}; + +struct rlimit { + quad_t rlim_cur; /* current (soft) limit */ + quad_t rlim_max; /* maximum value for rlim_cur */ +}; + +/* Load average structure. */ +struct loadavg { + fixpt_t ldavg[3]; + long fscale; +}; + +#ifdef KERNEL +extern struct loadavg averunnable; + +#else +#include <sys/cdefs.h> + +__BEGIN_DECLS +int getpriority __P((int, int)); +int getrlimit __P((int, struct rlimit *)); +int getrusage __P((int, struct rusage *)); +int setpriority __P((int, int, int)); +int setrlimit __P((int, const struct rlimit *)); +__END_DECLS + +#endif /* KERNEL */ +#endif /* !_SYS_RESOURCE_H_ */ |