Return to vlimit.3 CVS log

Up to [CSRG BSD Unix] / 43BSDReno / lib / libcompat / 4.1

Annotation of 43BSDReno/lib/libcompat/4.1/vlimit.3, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1980 Regents of the University of California.
        !             2: .\" All rights reserved.  The Berkeley software License Agreement
        !             3: .\" specifies the terms and conditions for redistribution.
        !             4: .\"
        !             5: .\"    @(#)vlimit.3    6.3 (Berkeley) 5/17/89
        !             6: .\"
        !             7: .TH VLIMIT 3C "May 17, 1989"
        !             8: .UC 4
        !             9: .SH NAME
        !            10: vlimit \- control maximum system resource consumption
        !            11: .SH SYNOPSIS
        !            12: .B "#include <sys/vlimit.h>"
        !            13: .PP
        !            14: .B vlimit(resource, value)
        !            15: .SH DESCRIPTION
        !            16: .ft B
        !            17: This interface is obsoleted by getrlimit(2).
        !            18: .br
        !            19: It is available from the compatibility library, libcompat.
        !            20: .ft R
        !            21: .PP
        !            22: Limits the consumption by the current process and each process
        !            23: it creates to not individually exceed 
        !            24: .I value
        !            25: on the specified
        !            26: .I resource.
        !            27: If
        !            28: .I value
        !            29: is specified as \-1, then the current limit is returned and the
        !            30: limit is unchanged.
        !            31: The resources which are currently controllable are:
        !            32: .TP 15
        !            33: LIM_NORAISE
        !            34: A pseudo-limit; if set non-zero then the limits may not be raised.
        !            35: Only the super-user may remove the \fInoraise\fR restriction.
        !            36: .TP 15
        !            37: LIM_CPU
        !            38: the maximum
        !            39: number of cpu-seconds to be used by each process
        !            40: .TP 15
        !            41: LIM_FSIZE
        !            42: the largest single file which can be created
        !            43: .TP 15
        !            44: LIM_DATA
        !            45: the maximum growth of the data+stack region via
        !            46: .IR sbrk (2)
        !            47: beyond the end of the program text
        !            48: .TP 15
        !            49: LIM_STACK
        !            50: the maximum
        !            51: size of the automatically-extended stack region
        !            52: .TP 15
        !            53: LIM_CORE
        !            54: the size of the largest core dump that will be created.
        !            55: .TP 15
        !            56: LIM_MAXRSS
        !            57: a soft limit for the amount of physical memory (in bytes) to be given
        !            58: to the program.  If memory is tight, the system will prefer to take memory
        !            59: from processes which are exceeding their declared LIM_MAXRSS.
        !            60: .PP
        !            61: Because this information is stored in the per-process information
        !            62: this system call must be executed directly by the shell if it
        !            63: is to affect all future processes created by the shell;
        !            64: .I limit
        !            65: is thus a built-in command to
        !            66: .IR csh (1).
        !            67: .PP
        !            68: The system refuses to extend the data or stack space when the limits
        !            69: would be exceeded in the normal way; a
        !            70: .I break
        !            71: call fails if the data space limit is reached, or the process is
        !            72: killed when the stack limit is reached (since the stack cannot be
        !            73: extended, there is no way to send a signal!).
        !            74: .PP
        !            75: A file i/o operation which would create a file which is too large
        !            76: will cause a signal SIGXFSZ to be generated, this normally terminates
        !            77: the process, but may be caught.
        !            78: When the cpu time limit is exceeded, a signal SIGXCPU is sent to the
        !            79: offending process; to allow it time to process the signal it is
        !            80: given 5 seconds grace by raising the cpu time limit.
        !            81: .SH SEE ALSO
        !            82: csh(1)
        !            83: .SH BUGS
        !            84: LIM_NORAISE no longer exists.

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.