1/*
2 * ptw32_new.c
3 *
4 * Description:
5 * This translation unit implements miscellaneous thread functions.
6 *
7 * --------------------------------------------------------------------------
8 *
9 *      Pthreads-win32 - POSIX Threads Library for Win32
10 *      Copyright(C) 1998 John E. Bossom
11 *      Copyright(C) 1999,2005 Pthreads-win32 contributors
12 *
13 *      Contact Email: rpj@callisto.canberra.edu.au
14 *
15 *      The current list of contributors is contained
16 *      in the file CONTRIBUTORS included with the source
17 *      code distribution. The list can also be seen at the
18 *      following World Wide Web location:
19 *      http://sources.redhat.com/pthreads-win32/contributors.html
20 *
21 *      This library is free software; you can redistribute it and/or
22 *      modify it under the terms of the GNU Lesser General Public
23 *      License as published by the Free Software Foundation; either
24 *      version 2 of the License, or (at your option) any later version.
25 *
26 *      This library is distributed in the hope that it will be useful,
27 *      but WITHOUT ANY WARRANTY; without even the implied warranty of
28 *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
29 *      Lesser General Public License for more details.
30 *
31 *      You should have received a copy of the GNU Lesser General Public
32 *      License along with this library in the file COPYING.LIB;
33 *      if not, write to the Free Software Foundation, Inc.,
34 *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
35 */
36
37#include "pthread.h"
38#include "implement.h"
39
40
41pthread_t
42ptw32_new (void)
43{
44  pthread_t t;
45  pthread_t nil = {NULL, 0};
46  ptw32_thread_t * tp;
47
48  /*
49   * If there's a reusable pthread_t then use it.
50   */
51  t = ptw32_threadReusePop ();
52
53  if (NULL != t.p)
54    {
55      tp = (ptw32_thread_t *) t.p;
56    }
57  else
58    {
59      /* No reuse threads available */
60      tp = (ptw32_thread_t *) calloc (1, sizeof(ptw32_thread_t));
61
62      if (tp == NULL)
63	{
64	  return nil;
65	}
66
67      /* ptHandle.p needs to point to it's parent ptw32_thread_t. */
68      t.p = tp->ptHandle.p = tp;
69      t.x = tp->ptHandle.x = 0;
70    }
71
72  /* Set default state. */
73  tp->seqNumber = ++ptw32_threadSeqNumber;
74  tp->sched_priority = THREAD_PRIORITY_NORMAL;
75  tp->detachState = PTHREAD_CREATE_JOINABLE;
76  tp->cancelState = PTHREAD_CANCEL_ENABLE;
77  tp->cancelType = PTHREAD_CANCEL_DEFERRED;
78  tp->stateLock = 0;
79  tp->threadLock = 0;
80  tp->robustMxListLock = 0;
81  tp->robustMxList = NULL;
82  tp->cancelEvent = CreateEvent (0, (int) PTW32_TRUE,	/* manualReset  */
83				 (int) PTW32_FALSE,	/* setSignaled  */
84				 NULL);
85
86  if (tp->cancelEvent == NULL)
87    {
88      ptw32_threadReusePush (tp->ptHandle);
89      return nil;
90    }
91
92  return t;
93
94}
95