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man:ulimit

ULIMIT(3) Linux Programmer's Manual ULIMIT(3)

NAME

     ulimit - get and set user limits

SYNOPSIS

     #include <ulimit.h>
     long ulimit(int cmd, long newlimit);

DESCRIPTION

     Warning: this routine is obsolete.  Use getrlimit(2), setrlimit(2), and
     sysconf(3) instead.  For the shell command ulimit(), see bash(1).
     The ulimit() call will get or set some limit for the  calling  process.
     The cmd argument can have one of the following values.
     UL_GETFSIZE
            Return the limit on the size of a file, in units of 512 bytes.
     UL_SETFSIZE
            Set the limit on the size of a file.
     3      (Not  implemented  for  Linux.)   Return  the  maximum  possible
            address of the data segment.
     4      (Implemented but no symbolic  constant  provided.)   Return  the
            maximum number of files that the calling process can open.

RETURN VALUE

     On  success,  ulimit()  returns  a  nonnegative value.  On error, -1 is
     returned, and errno is set appropriately.

ERRORS

     EPERM  An unprivileged process tried to increase a limit.

ATTRIBUTES

     For  an  explanation  of  the  terms  used   in   this   section,   see
     attributes(7).
     +----------+---------------+---------+
     |Interface | Attribute     | Value   |
     +----------+---------------+---------+
     |ulimit()  | Thread safety | MT-Safe |
     +----------+---------------+---------+

CONFORMING TO

     SVr4, POSIX.1-2001.  POSIX.1-2008 marks ulimit() as obsolete.

SEE ALSO

     bash(1), getrlimit(2), setrlimit(2), sysconf(3)

COLOPHON

     This  page  is  part of release 4.16 of the Linux man-pages project.  A
     description of the project, information about reporting bugs,  and  the
     latest     version     of     this    page,    can    be    found    at
     https://www.kernel.org/doc/man-pages/.

Linux 2017-09-15 ULIMIT(3)

/data/webs/external/dokuwiki/data/pages/man/ulimit.txt · Last modified: 2019/05/17 09:47 by 127.0.0.1

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