| /* Bit values & structures for resource limits. Linux version. |
| Copyright (C) 1994, 1996, 1997, 1998, 1999, 2000, 2004, 2005 |
| Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| #ifndef _SYS_RESOURCE_H |
| # error "Never use <bits/resource.h> directly; include <sys/resource.h> instead." |
| #endif |
| |
| #include <bits/types.h> |
| |
| /* Transmute defines to enumerations. The macro re-definitions are |
| necessary because some programs want to test for operating system |
| features with #ifdef RUSAGE_SELF. In ISO C the reflexive |
| definition is a no-op. */ |
| |
| /* Kinds of resource limit. */ |
| enum __rlimit_resource |
| { |
| /* Per-process CPU limit, in seconds. */ |
| RLIMIT_CPU = 0, |
| #define RLIMIT_CPU RLIMIT_CPU |
| |
| /* Largest file that can be created, in bytes. */ |
| RLIMIT_FSIZE = 1, |
| #define RLIMIT_FSIZE RLIMIT_FSIZE |
| |
| /* Maximum size of data segment, in bytes. */ |
| RLIMIT_DATA = 2, |
| #define RLIMIT_DATA RLIMIT_DATA |
| |
| /* Maximum size of stack segment, in bytes. */ |
| RLIMIT_STACK = 3, |
| #define RLIMIT_STACK RLIMIT_STACK |
| |
| /* Largest core file that can be created, in bytes. */ |
| RLIMIT_CORE = 4, |
| #define RLIMIT_CORE RLIMIT_CORE |
| |
| /* Largest resident set size, in bytes. |
| This affects swapping; processes that are exceeding their |
| resident set size will be more likely to have physical memory |
| taken from them. */ |
| __RLIMIT_RSS = 5, |
| #define RLIMIT_RSS __RLIMIT_RSS |
| |
| /* Number of open files. */ |
| RLIMIT_NOFILE = 7, |
| __RLIMIT_OFILE = RLIMIT_NOFILE, /* BSD name for same. */ |
| #define RLIMIT_NOFILE RLIMIT_NOFILE |
| #define RLIMIT_OFILE __RLIMIT_OFILE |
| |
| /* Address space limit. */ |
| RLIMIT_AS = 9, |
| #define RLIMIT_AS RLIMIT_AS |
| |
| /* Number of processes. */ |
| __RLIMIT_NPROC = 6, |
| #define RLIMIT_NPROC __RLIMIT_NPROC |
| |
| /* Locked-in-memory address space. */ |
| __RLIMIT_MEMLOCK = 8, |
| #define RLIMIT_MEMLOCK __RLIMIT_MEMLOCK |
| |
| /* Maximum number of file locks. */ |
| __RLIMIT_LOCKS = 10, |
| #define RLIMIT_LOCKS __RLIMIT_LOCKS |
| |
| /* Maximum number of pending signals. */ |
| __RLIMIT_SIGPENDING = 11, |
| #define RLIMIT_SIGPENDING __RLIMIT_SIGPENDING |
| |
| /* Maximum bytes in POSIX message queues. */ |
| __RLIMIT_MSGQUEUE = 12, |
| #define RLIMIT_MSGQUEUE __RLIMIT_MSGQUEUE |
| |
| /* Maximum nice priority allowed to raise to. |
| Nice levels 19 .. -20 correspond to 0 .. 39 |
| values of this resource limit. */ |
| __RLIMIT_NICE = 13, |
| #define RLIMIT_NICE __RLIMIT_NICE |
| |
| /* Maximum realtime priority allowed for non-priviledged |
| processes. */ |
| __RLIMIT_RTPRIO = 14, |
| #define RLIMIT_RTPRIO __RLIMIT_RTPRIO |
| |
| __RLIMIT_NLIMITS = 15, |
| __RLIM_NLIMITS = __RLIMIT_NLIMITS |
| #define RLIMIT_NLIMITS __RLIMIT_NLIMITS |
| #define RLIM_NLIMITS __RLIM_NLIMITS |
| }; |
| |
| /* Value to indicate that there is no limit. */ |
| #ifndef __USE_FILE_OFFSET64 |
| # define RLIM_INFINITY ((unsigned long int)(~0UL)) |
| #else |
| # define RLIM_INFINITY 0xffffffffffffffffuLL |
| #endif |
| |
| #ifdef __USE_LARGEFILE64 |
| # define RLIM64_INFINITY 0xffffffffffffffffuLL |
| #endif |
| |
| /* We can represent all limits. */ |
| #define RLIM_SAVED_MAX RLIM_INFINITY |
| #define RLIM_SAVED_CUR RLIM_INFINITY |
| |
| |
| /* Type for resource quantity measurement. */ |
| #ifndef __USE_FILE_OFFSET64 |
| typedef __rlim_t rlim_t; |
| #else |
| typedef __rlim64_t rlim_t; |
| #endif |
| #ifdef __USE_LARGEFILE64 |
| typedef __rlim64_t rlim64_t; |
| #endif |
| |
| struct rlimit |
| { |
| /* The current (soft) limit. */ |
| rlim_t rlim_cur; |
| /* The hard limit. */ |
| rlim_t rlim_max; |
| }; |
| |
| #ifdef __USE_LARGEFILE64 |
| struct rlimit64 |
| { |
| /* The current (soft) limit. */ |
| rlim64_t rlim_cur; |
| /* The hard limit. */ |
| rlim64_t rlim_max; |
| }; |
| #endif |
| |
| /* Whose usage statistics do you want? */ |
| enum __rusage_who |
| { |
| /* The calling process. */ |
| RUSAGE_SELF = 0, |
| #define RUSAGE_SELF RUSAGE_SELF |
| |
| /* All of its terminated child processes. */ |
| RUSAGE_CHILDREN = -1 |
| #define RUSAGE_CHILDREN RUSAGE_CHILDREN |
| }; |
| |
| #define __need_timeval |
| #include <bits/time.h> /* For `struct timeval'. */ |
| |
| /* Structure which says how much of each resource has been used. */ |
| struct rusage |
| { |
| /* Total amount of user time used. */ |
| struct timeval ru_utime; |
| /* Total amount of system time used. */ |
| struct timeval ru_stime; |
| /* Maximum resident set size (in kilobytes). */ |
| long int ru_maxrss; |
| /* Amount of sharing of text segment memory |
| with other processes (kilobyte-seconds). */ |
| long int ru_ixrss; |
| /* Amount of data segment memory used (kilobyte-seconds). */ |
| long int ru_idrss; |
| /* Amount of stack memory used (kilobyte-seconds). */ |
| long int ru_isrss; |
| /* Number of soft page faults (i.e. those serviced by reclaiming |
| a page from the list of pages awaiting reallocation. */ |
| long int ru_minflt; |
| /* Number of hard page faults (i.e. those that required I/O). */ |
| long int ru_majflt; |
| /* Number of times a process was swapped out of physical memory. */ |
| long int ru_nswap; |
| /* Number of input operations via the file system. Note: This |
| and `ru_oublock' do not include operations with the cache. */ |
| long int ru_inblock; |
| /* Number of output operations via the file system. */ |
| long int ru_oublock; |
| /* Number of IPC messages sent. */ |
| long int ru_msgsnd; |
| /* Number of IPC messages received. */ |
| long int ru_msgrcv; |
| /* Number of signals delivered. */ |
| long int ru_nsignals; |
| /* Number of voluntary context switches, i.e. because the process |
| gave up the process before it had to (usually to wait for some |
| resource to be available). */ |
| long int ru_nvcsw; |
| /* Number of involuntary context switches, i.e. a higher priority process |
| became runnable or the current process used up its time slice. */ |
| long int ru_nivcsw; |
| }; |
| |
| /* Priority limits. */ |
| #define PRIO_MIN -20 /* Minimum priority a process can have. */ |
| #define PRIO_MAX 20 /* Maximum priority a process can have. */ |
| |
| /* The type of the WHICH argument to `getpriority' and `setpriority', |
| indicating what flavor of entity the WHO argument specifies. */ |
| enum __priority_which |
| { |
| PRIO_PROCESS = 0, /* WHO is a process ID. */ |
| #define PRIO_PROCESS PRIO_PROCESS |
| PRIO_PGRP = 1, /* WHO is a process group ID. */ |
| #define PRIO_PGRP PRIO_PGRP |
| PRIO_USER = 2 /* WHO is a user ID. */ |
| #define PRIO_USER PRIO_USER |
| }; |