| | 1 | .\" $NetBSD: getpid.2,v 1.5 1995/02/27 12:33:12 cgd Exp $ |
| | 2 | .\" |
| | 3 | .\" Copyright (c) 1980, 1991, 1993 |
| | 4 | .\" The Regents of the University of California. All rights reserved. |
| | 5 | .\" |
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| | 8 | .\" are met: |
| | 9 | .\" 1. Redistributions of source code must retain the above copyright |
| | 10 | .\" notice, this list of conditions and the following disclaimer. |
| | 11 | .\" 2. Redistributions in binary form must reproduce the above copyright |
| | 12 | .\" notice, this list of conditions and the following disclaimer in the |
| | 13 | .\" documentation and/or other materials provided with the distribution. |
| | 14 | .\" 3. All advertising materials mentioning features or use of this software |
| | 15 | .\" must display the following acknowledgement: |
| | 16 | .\" This product includes software developed by the University of |
| | 17 | .\" California, Berkeley and its contributors. |
| | 18 | .\" 4. Neither the name of the University nor the names of its contributors |
| | 19 | .\" may be used to endorse or promote products derived from this software |
| | 20 | .\" without specific prior written permission. |
| | 21 | .\" |
| | 22 | .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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| | 24 | .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| | 32 | .\" SUCH DAMAGE. |
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| | 34 | .\" @(#)getpid.2 8.1 (Berkeley) 6/4/93 |
| | 35 | .\" |
| | 36 | .Dd June 4, 1993 |
| | 37 | .Dt GETPID 2 |
| | 38 | .Os BSD 4 |
| | 39 | .Sh NAME |
| | 40 | .Nm getpid , |
| | 41 | .Nm getppid |
| | 42 | .Nd get parent or calling process identification |
| | 43 | .Sh SYNOPSIS |
| | 44 | .Fd #include <sys/types.h> |
| | 45 | .Fd #include <unistd.h> |
| | 46 | .Ft pid_t |
| | 47 | .Fn getpid void |
| | 48 | .Ft pid_t |
| | 49 | .Fn getppid void |
| | 50 | .Sh DESCRIPTION |
| | 51 | .Fn Getpid |
| | 52 | returns |
| | 53 | the process ID of |
| | 54 | the calling process. |
| | 55 | The ID is guaranteed to be unique and is |
| | 56 | useful for constructing temporary file names. |
| | 57 | .Pp |
| | 58 | .Fn Getppid |
| | 59 | returns the process ID of the parent |
| | 60 | of the calling process. |
| | 61 | .Sh ERRORS |
| | 62 | The |
| | 63 | .Fn getpid |
| | 64 | and |
| | 65 | .Fn getppid |
| | 66 | functions are always successful, and no return value is reserved to |
| | 67 | indicate an error. |
| | 68 | .Sh SEE ALSO |
| | 69 | .Xr gethostid 2 |
| | 70 | .Sh STANDARDS |
| | 71 | .Fn Getpid |
| | 72 | and |
| | 73 | .Fn getppid |
| | 74 | conform to |
| | 75 | .St -p1003.1-88 . |
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