1*062c5bc4SJason Schmidlapp /*
2*062c5bc4SJason Schmidlapp * pthread_condattr_init.c
3*062c5bc4SJason Schmidlapp *
4*062c5bc4SJason Schmidlapp * Description:
5*062c5bc4SJason Schmidlapp * This translation unit implements condition variables and their primitives.
6*062c5bc4SJason Schmidlapp *
7*062c5bc4SJason Schmidlapp *
8*062c5bc4SJason Schmidlapp * --------------------------------------------------------------------------
9*062c5bc4SJason Schmidlapp *
10*062c5bc4SJason Schmidlapp * Pthreads-embedded (PTE) - POSIX Threads Library for embedded systems
11*062c5bc4SJason Schmidlapp * Copyright(C) 2008 Jason Schmidlapp
12*062c5bc4SJason Schmidlapp *
13*062c5bc4SJason Schmidlapp * Contact Email: jschmidlapp@users.sourceforge.net
14*062c5bc4SJason Schmidlapp *
15*062c5bc4SJason Schmidlapp *
16*062c5bc4SJason Schmidlapp * Based upon Pthreads-win32 - POSIX Threads Library for Win32
17*062c5bc4SJason Schmidlapp * Copyright(C) 1998 John E. Bossom
18*062c5bc4SJason Schmidlapp * Copyright(C) 1999,2005 Pthreads-win32 contributors
19*062c5bc4SJason Schmidlapp *
20*062c5bc4SJason Schmidlapp * Contact Email: rpj@callisto.canberra.edu.au
21*062c5bc4SJason Schmidlapp *
22*062c5bc4SJason Schmidlapp * The original list of contributors to the Pthreads-win32 project
23*062c5bc4SJason Schmidlapp * is contained in the file CONTRIBUTORS.ptw32 included with the
24*062c5bc4SJason Schmidlapp * source code distribution. The list can also be seen at the
25*062c5bc4SJason Schmidlapp * following World Wide Web location:
26*062c5bc4SJason Schmidlapp * http://sources.redhat.com/pthreads-win32/contributors.html
27*062c5bc4SJason Schmidlapp *
28*062c5bc4SJason Schmidlapp * This library is free software; you can redistribute it and/or
29*062c5bc4SJason Schmidlapp * modify it under the terms of the GNU Lesser General Public
30*062c5bc4SJason Schmidlapp * License as published by the Free Software Foundation; either
31*062c5bc4SJason Schmidlapp * version 2 of the License, or (at your option) any later version.
32*062c5bc4SJason Schmidlapp *
33*062c5bc4SJason Schmidlapp * This library is distributed in the hope that it will be useful,
34*062c5bc4SJason Schmidlapp * but WITHOUT ANY WARRANTY; without even the implied warranty of
35*062c5bc4SJason Schmidlapp * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
36*062c5bc4SJason Schmidlapp * Lesser General Public License for more details.
37*062c5bc4SJason Schmidlapp *
38*062c5bc4SJason Schmidlapp * You should have received a copy of the GNU Lesser General Public
39*062c5bc4SJason Schmidlapp * License along with this library in the file COPYING.LIB;
40*062c5bc4SJason Schmidlapp * if not, write to the Free Software Foundation, Inc.,
41*062c5bc4SJason Schmidlapp * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
42*062c5bc4SJason Schmidlapp */
43*062c5bc4SJason Schmidlapp
44*062c5bc4SJason Schmidlapp #include <stdlib.h>
45*062c5bc4SJason Schmidlapp
46*062c5bc4SJason Schmidlapp #include "pthread.h"
47*062c5bc4SJason Schmidlapp #include "implement.h"
48*062c5bc4SJason Schmidlapp
49*062c5bc4SJason Schmidlapp
50*062c5bc4SJason Schmidlapp int
pthread_condattr_init(pthread_condattr_t * attr)51*062c5bc4SJason Schmidlapp pthread_condattr_init (pthread_condattr_t * attr)
52*062c5bc4SJason Schmidlapp /*
53*062c5bc4SJason Schmidlapp * ------------------------------------------------------
54*062c5bc4SJason Schmidlapp * DOCPUBLIC
55*062c5bc4SJason Schmidlapp * Initializes a condition variable attributes object
56*062c5bc4SJason Schmidlapp * with default attributes.
57*062c5bc4SJason Schmidlapp *
58*062c5bc4SJason Schmidlapp * PARAMETERS
59*062c5bc4SJason Schmidlapp * attr
60*062c5bc4SJason Schmidlapp * pointer to an instance of pthread_condattr_t
61*062c5bc4SJason Schmidlapp *
62*062c5bc4SJason Schmidlapp *
63*062c5bc4SJason Schmidlapp * DESCRIPTION
64*062c5bc4SJason Schmidlapp * Initializes a condition variable attributes object
65*062c5bc4SJason Schmidlapp * with default attributes.
66*062c5bc4SJason Schmidlapp *
67*062c5bc4SJason Schmidlapp * NOTES:
68*062c5bc4SJason Schmidlapp * 1) Use to define condition variable types
69*062c5bc4SJason Schmidlapp * 2) It is up to the application to ensure
70*062c5bc4SJason Schmidlapp * that it doesn't re-init an attribute
71*062c5bc4SJason Schmidlapp * without destroying it first. Otherwise
72*062c5bc4SJason Schmidlapp * a memory leak is created.
73*062c5bc4SJason Schmidlapp *
74*062c5bc4SJason Schmidlapp * RESULTS
75*062c5bc4SJason Schmidlapp * 0 successfully initialized attr,
76*062c5bc4SJason Schmidlapp * ENOMEM insufficient memory for attr.
77*062c5bc4SJason Schmidlapp *
78*062c5bc4SJason Schmidlapp * ------------------------------------------------------
79*062c5bc4SJason Schmidlapp */
80*062c5bc4SJason Schmidlapp {
81*062c5bc4SJason Schmidlapp pthread_condattr_t attr_result;
82*062c5bc4SJason Schmidlapp int result = 0;
83*062c5bc4SJason Schmidlapp
84*062c5bc4SJason Schmidlapp attr_result = (pthread_condattr_t) calloc (1, sizeof (*attr_result));
85*062c5bc4SJason Schmidlapp
86*062c5bc4SJason Schmidlapp if (attr_result == NULL)
87*062c5bc4SJason Schmidlapp {
88*062c5bc4SJason Schmidlapp result = ENOMEM;
89*062c5bc4SJason Schmidlapp }
90*062c5bc4SJason Schmidlapp
91*062c5bc4SJason Schmidlapp *attr = attr_result;
92*062c5bc4SJason Schmidlapp
93*062c5bc4SJason Schmidlapp return result;
94*062c5bc4SJason Schmidlapp
95*062c5bc4SJason Schmidlapp } /* pthread_condattr_init */
96