1 /*
2 * pthread_exit.c
3 *
4 * Description:
5 * This translation unit implements routines associated with exiting from
6 * a thread.
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 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
36 */
37
38 #include "pthread.h"
39 #include "implement.h"
40 #if !defined(_UWIN)
41 /*# include <process.h> */
42 #endif
43
44 void
pthread_exit(void * value_ptr)45 pthread_exit (void *value_ptr)
46 /*
47 * ------------------------------------------------------
48 * DOCPUBLIC
49 * This function terminates the calling thread, returning
50 * the value 'value_ptr' to any joining thread.
51 *
52 * PARAMETERS
53 * value_ptr
54 * a generic data value (i.e. not the address of a value)
55 *
56 *
57 * DESCRIPTION
58 * This function terminates the calling thread, returning
59 * the value 'value_ptr' to any joining thread.
60 * NOTE: thread should be joinable.
61 *
62 * RESULTS
63 * N/A
64 *
65 * ------------------------------------------------------
66 */
67 {
68 ptw32_thread_t * sp;
69
70 /*
71 * Don't use pthread_self() to avoid creating an implicit POSIX thread handle
72 * unnecessarily.
73 */
74 sp = (ptw32_thread_t *) pthread_getspecific (ptw32_selfThreadKey);
75
76 #if defined(_UWIN)
77 if (--pthread_count <= 0)
78 exit ((int) value_ptr);
79 #endif
80
81 if (NULL == sp)
82 {
83 /*
84 * A POSIX thread handle was never created. I.e. this is a
85 * Win32 thread that has never called a pthreads-win32 routine that
86 * required a POSIX handle.
87 *
88 * Implicit POSIX handles are cleaned up in ptw32_throw() now.
89 */
90
91 #if ! (defined (__MINGW64__) || defined(__MINGW32__)) || defined (__MSVCRT__) || defined (__DMC__)
92 _endthreadex ((unsigned) (size_t) value_ptr);
93 #else
94 _endthread ();
95 #endif
96
97 /* Never reached */
98 }
99
100 sp->exitStatus = value_ptr;
101
102 ptw32_throw (PTW32_EPS_EXIT);
103
104 /* Never reached. */
105
106 }
107