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Diffstat (limited to 'sysdeps/unix/sysv/linux/resourcebits.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/resourcebits.h | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/resourcebits.h b/sysdeps/unix/sysv/linux/resourcebits.h new file mode 100644 index 0000000000..69a0cfdc7d --- /dev/null +++ b/sysdeps/unix/sysv/linux/resourcebits.h @@ -0,0 +1,186 @@ +/* Bit values & structures for resource limits. Linux version. +Copyright (C) 1994, 1996 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 Library General Public License as +published by the Free Software Foundation; either version 2 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 +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <asm/resource.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 = RLIMIT_CPU, +#undef RLIMIT_CPU + RLIMIT_CPU = _RLIMIT_CPU, +#define RLIMIT_CPU RLIMIT_CPU + + /* Largest file that can be created, in bytes. */ + _RLIMIT_FSIZE = RLIMIT_FSIZE, +#undef RLIMIT_FSIZE + RLIMIT_FSIZE = _RLIMIT_FSIZE, +#define RLIMIT_FSIZE RLIMIT_FSIZE + + /* Maximum size of data segment, in bytes. */ + _RLIMIT_DATA = RLIMIT_DATA, +#undef RLIMIT_DATA + RLIMIT_DATA = _RLIMIT_DATA, +#define RLIMIT_DATA RLIMIT_DATA + + /* Maximum size of stack segment, in bytes. */ + _RLIMIT_STACK = RLIMIT_STACK, +#undef RLIMIT_STACK + RLIMIT_STACK = _RLIMIT_STACK, +#define RLIMIT_STACK RLIMIT_STACK + + /* Largest core file that can be created, in bytes. */ + _RLIMIT_CORE = RLIMIT_CORE, +#undef RLIMIT_CORE + RLIMIT_CORE = _RLIMIT_CORE, +#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 = RLIMIT_RSS, +#undef RLIMIT_RSS + RLIMIT_RSS = _RLIMIT_RSS, +#define RLIMIT_RSS RLIMIT_RSS + + /* Number of open files. */ + _RLIMIT_NOFILE = RLIMIT_NOFILE, +#undef RLIMIT_NOFILE + RLIMIT_NOFILE = _RLIMIT_NOFILE, + RLIMIT_OFILE = RLIMIT_NOFILE, /* BSD name for same. */ +#define RLIMIT_NOFILE RLIMIT_NOFILE +#define RLIMIT_OFILE RLIMIT_OFILE + + /* Address space limit (?) */ + _RLIMIT_AS = RLIMIT_AS, +#undef RLIMIT_AS + RLIMIT_AS = _RLIMIT_AS, +#define RLIMIT_AS RLIMIT_AS + + /* Number of processes. */ + _RLIMIT_NPROC = RLIMIT_NPROC, +#undef RLIMIT_NPROC + RLIMIT_NPROC = _RLIMIT_NPROC, +#define RLIMIT_NPROC RLIMIT_NPROC + + /* Locked-in-memory address space. */ + _RLIMIT_MEMLOCK = RLIMIT_MEMLOCK, +#undef RLIMIT_MEMLOCK + RLIMIT_MEMLOCK = _RLIMIT_MEMLOCK, +#define RLIMIT_MEMLOCK RLIMIT_MEMLOCK + + RLIMIT_NLIMITS = RLIM_NLIMITS, +#undef RLIM_NLIMITS + RLIM_NLIMITS = RLIMIT_NLIMITS, +#define RLIMIT_NLIMITS RLIMIT_NLIMITS +#define RLIM_NLIMITS RLIM_NLIMITS + + /* Value to indicate that there is no limit. */ + RLIM_INFINITY = (long int)(~0UL >> 1) +#define RLIM_INFINITY RLIM_INFINITY +}; + +struct rlimit +{ + /* The current (soft) limit. */ + long int rlim_cur; + /* The hard limit. */ + long int rlim_max; +}; + +/* 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 + + /* Both. */ + RUSAGE_BOTH = -2 +#define RUSAGE_BOTH RUSAGE_BOTH +}; + +#include <sys/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. */ + PRIO_PGRP = 1, /* WHO is a process group ID. */ + PRIO_USER = 2 /* WHO is a user ID. */ +}; |