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.\" Hey Emacs! This file is -*- nroff -*- source.
.\"
.\" Copyright 1993 Rickard E. Faith (faith@cs.unc.edu)
.\" Permission is granted to make and distribute verbatim copies of this
.\" manual 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 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.
.\"
.\" Since the Linux kernel and libraries are constantly changing, this
.\" manual page may be incorrect or out-of-date. The author(s) assume no
.\" responsibility for errors or omissions, or for damages resulting from
.\" the use of the information contained herein. The author(s) may not
.\" have taken the same level of care in the production of this manual,
.\" which is licensed free of charge, as they might when working
.\" professionally.
.\"
.\" Formatted or processed versions of this manual, if unaccompanied by
.\" the source, must acknowledge the copyright and authors of this work.
.\"
.\" Japanese Version Copyright (c) 1997 SUTO, Mitsuaki
.\" and Copyright(c) 2008 Akihiro MOTOKI
.\" all rights reserved.
.\" Translated Thu Jun 26 20:33:01 JST 1997
.\" by SUTO, Mitsuaki <suto@av.crl.sony.co.jp>
.\" Updated 2008-10-03, Akihiro MOTOKI, LDP v3.10
.\"
.TH GETPID 2 2008-09-23 "Linux" "Linux Programmer's Manual"
.SH ̾
getpid, getppid \- ץ ID
.SH
.B #include <sys/types.h>
.br
.B #include <unistd.h>
.sp
.B pid_t getpid(void);
.br
.B pid_t getppid(void);
.SH
.BR getpid ()
ϸƤӽФΥץΥץ ID ֤(ƥݥѤΥե̾Ȥ
¾ȽŤʤʤ̾롼ǤФлѤ롣)
.BR getppid ()
ϸƤӽФΥץοƥץΥץ ID ֤
.SH 顼
δؿϾ롣
.SH
POSIX.1-2001, 4.3BSD, SVr4.
.SH
glibc С 2.3.4 ʹߤǤϡ
glibc
.BR getpid ()
Υåѡؿ PID å夹롣
ϡץ֤
.BR getpid ()
ƤӽФˤ٥ƥॳƤ֤Τ뤿Ǥ롣
̾ϡΥå뤳ȤϤʤ
åƯˤ
.BR fork (2),
.BR vfork (2),
.BR clone (2)
ΥåѡؿǤΥݡȤɬפǤ롣
ץꥱΥƥॳƤӽФݤˡ
glibc Υåѡؿͳ
.BR syscall (2)
Ȥäˤϡҥץ
.BR getpid ()
ƤӽФȴְä֤ͤ뤳Ȥ
(Τˤȡƥץ PID ֤)
.\" The following program demonstrates this "feature":
.\"
.\" #define _GNU_SOURCE
.\" #include <sys/syscall.h>
.\" #include <sys/wait.h>
.\" #include <stdio.h>
.\" #include <stdlib.h>
.\" #include <unistd.h>
.\"
.\" int
.\" main(int argc, char *argv[])
.\" {
.\" /* The following statement fills the getpid() cache */
.\"
.\" printf("parent PID = %ld\n", (long) getpid());
.\"
.\" if (syscall(SYS_fork) == 0) {
.\" if (getpid() != syscall(SYS_getpid))
.\" printf("child getpid() mismatch: getpid()=%ld; "
.\" "syscall(SYS_getpid)=%ld\n",
.\" (long) getpid(), (long) syscall(SYS_getpid));
.\" exit(EXIT_SUCCESS);
.\" }
.\" wait(NULL);
.\"}
.BR clone (2)
glibc Υåѡؿͳǵưݤˤ
.BR getpid ()
ְä֤ͤ礬ꡢ˴ؤ
.BR clone (2)
⻲ȤƤۤ
.SH Ϣ
.BR clone (2),
.BR fork (2),
.BR kill (2),
.BR exec (3),
.BR mkstemp (3),
.BR tempnam (3),
.BR tmpfile (3),
.BR tmpnam (3),
.BR credentials (7)
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