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File indexing completed on 2025-05-11 08:24:15

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002 
0003 /**
0004  *  @file
0005  *
0006  *  @brief Process and Parent Process IDs
0007  *
0008  *  @ingroup libcsupport
0009  */
0010 
0011 /*
0012  * COPYRIGHT (C) 1989-1999 On-Line Applications Research Corporation (OAR).
0013  *
0014  * Redistribution and use in source and binary forms, with or without
0015  * modification, are permitted provided that the following conditions
0016  * are met:
0017  * 1. Redistributions of source code must retain the above copyright
0018  *    notice, this list of conditions and the following disclaimer.
0019  * 2. Redistributions in binary form must reproduce the above copyright
0020  *    notice, this list of conditions and the following disclaimer in the
0021  *    documentation and/or other materials provided with the distribution.
0022  *
0023  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0024  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0025  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0026  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0027  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0028  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0029  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0030  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0031  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0032  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0033  * POSSIBILITY OF SUCH DAMAGE.
0034  */
0035 
0036 #ifdef HAVE_CONFIG_H
0037 #include "config.h"
0038 #endif
0039 
0040 #include <unistd.h>
0041 
0042 #include <rtems.h>
0043 
0044 /**
0045  *  4.1.1 Get Process and Parent Process IDs, P1003.1b-1993, p. 83
0046  */
0047 pid_t getpid( void )
0048 {
0049   return rtems_object_get_local_node();
0050 }
0051 
0052 #if defined(RTEMS_NEWLIB) && !defined(HAVE__GETPID_R)
0053 
0054 #include <reent.h>
0055 
0056 /**
0057  *  This is the Newlib dependent reentrant version of getpid().
0058  */
0059 pid_t _getpid_r(
0060   struct _reent *ptr RTEMS_UNUSED
0061 )
0062 {
0063   return getpid();
0064 }
0065 #endif