개요

• 솔라나라에 설명된 어플리케이션에 대해 맨 페이지를 찾아 출력한다.
• MAN 페이지에 대한 설명은 윈디하나의 솔라나라: MAN 페이지을 참고하자.
• svcadm(1M)을 검색하려면 섹션에서 1M 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.

fork(3)

FORK(3)                    GNU Awk Extension Modules                   FORK(3)



NAME
       fork, wait, waitpid - basic process management

SYNOPSIS
       @load "fork"

       pid = fork()

       ret = waitpid(pid)

       ret = wait();

DESCRIPTION
       The fork extension adds three functions, as follows.

       fork() This  function  creates  a  new process. The return value is the
              zero in the child and the process-id number of the child in  the
              parent,  or  -1  upon error. In the latter case, ERRNO indicates
              the problem.  In the child, PROCINFO["pid"] and PROCINFO["ppid"]
              are updated to reflect the correct values.

       waitpid()
              This  function takes a numeric argument, which is the process-id
              to wait for. The return value is that of the  waitpid(2)  system
              call.

       wait() This  function  waits  for  the  first child to die.  The return
              value is that of the wait(2) system call.

BUGS
       There is no corresponding exec() function.

       The interfaces could be enhanced to provide more facilities,  including
       pulling out the various bits of the return status.

EXAMPLE
       @load "fork"
       ...
       if ((pid = fork()) == 0)
           print "hello from the child"
       else
           print "hello from the parent"


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       box; cbp-1 | cbp-1 l | l .  ATTRIBUTE TYPE ATTRIBUTE VALUE = Availabil‐
       ity   text/gawk = Stability Volatile


SEE ALSO
       GAWK: Effective AWK Programming, filefuncs(3), fnmatch(3),  inplace(3),
       ordchr(3), readdir(3), readfile(3), revoutput(3), rwarray(3), time(3).

       fork(2), wait(2), waitpid(2).

AUTHOR
       Arnold Robbins, arnold@skeeve.com.

COPYING PERMISSIONS
       Copyright © 2012, 2013, 2018, Free Software Foundation, Inc.

       Permission  is  granted  to make and distribute verbatim copies of this
       manual page provided the copyright notice and  this  permission  notice
       are preserved on all copies.

       Permission  is granted to copy and distribute modified versions of this
       manual page under the conditions for verbatim  copying,  provided  that
       the  entire  resulting derived work is distributed under the terms of a
       permission notice identical to this one.

       Permission is granted to copy and distribute translations of this  man‐
       ual page into another language, under the above conditions for modified
       versions, except that this permission notice may be stated in a  trans‐
       lation approved by the Foundation.



NOTES
       Source  code  for open source software components in Oracle Solaris can
       be found at https://www.oracle.com/downloads/opensource/solaris-source-
       code-downloads.html.

       This     software     was    built    from    source    available    at
       https://github.com/oracle/solaris-userland.   The  original   community
       source                was                downloaded                from
       https://ftp.gnu.org/gnu/gawk/gawk-5.1.0.tar.xz.

       Further information about this software can be found on the open source
       community website at https://www.gnu.org/software/gawk.



Free Software Foundation          Feb 02 2018                          FORK(3)