native_client_sdk/src/libraries/third_party/pthreads-win32/pthread_condattr_init.c

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