/[pcsx2_0.9.7]/trunk/3rdparty/w32pthreads/ptw32_tkAssocDestroy.c
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Contents of /trunk/3rdparty/w32pthreads/ptw32_tkAssocDestroy.c

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Revision 31 - (show annotations) (download)
Tue Sep 7 03:24:11 2010 UTC (9 years, 11 months ago) by william
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committing r3113 initial commit again...
1 /*
2 * ptw32_tkAssocDestroy.c
3 *
4 * Description:
5 * This translation unit implements routines which are private to
6 * the implementation and may be used throughout it.
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 "ptw32pch.h"
39
40
41 void
42 ptw32_tkAssocDestroy (ThreadKeyAssoc * assoc)
43 /*
44 * -------------------------------------------------------------------
45 * This routine releases all resources for the given ThreadKeyAssoc
46 * once it is no longer being referenced
47 * ie) either the key or thread has stopped referencing it.
48 *
49 * Parameters:
50 * assoc
51 * an instance of ThreadKeyAssoc.
52 * Returns:
53 * N/A
54 * -------------------------------------------------------------------
55 */
56 {
57
58 /*
59 * Both key->keyLock and thread->threadLock are locked on
60 * entry to this routine.
61 */
62 if (assoc != NULL)
63 {
64 ThreadKeyAssoc * prev, * next;
65
66 /* Remove assoc from thread's keys chain */
67 prev = assoc->prevKey;
68 next = assoc->nextKey;
69 if (prev != NULL)
70 {
71 prev->nextKey = next;
72 }
73 if (next != NULL)
74 {
75 next->prevKey = prev;
76 }
77
78 if (assoc->thread->keys == assoc)
79 {
80 /* We're at the head of the thread's keys chain */
81 assoc->thread->keys = next;
82 }
83 if (assoc->thread->nextAssoc == assoc)
84 {
85 /*
86 * Thread is exiting and we're deleting the assoc to be processed next.
87 * Hand thread the assoc after this one.
88 */
89 assoc->thread->nextAssoc = next;
90 }
91
92 /* Remove assoc from key's threads chain */
93 prev = assoc->prevThread;
94 next = assoc->nextThread;
95 if (prev != NULL)
96 {
97 prev->nextThread = next;
98 }
99 if (next != NULL)
100 {
101 next->prevThread = prev;
102 }
103
104 if (assoc->key->threads == assoc)
105 {
106 /* We're at the head of the key's threads chain */
107 assoc->key->threads = next;
108 }
109
110 free (assoc);
111 }
112
113 } /* ptw32_tkAssocDestroy */

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