xref: /relibc/pthreads-emb/tests/reuse1.c (revision 714af18cbe52336f4ff71fe91bfb035d5efaef7d)
1 /*
2  * File: reuse1.c
3  *
4  *
5  * --------------------------------------------------------------------------
6  *
7  *      Pthreads-embedded (PTE) - POSIX Threads Library for embedded systems
8  *      Copyright(C) 2008 Jason Schmidlapp
9  *
10  *      Contact Email: jschmidlapp@users.sourceforge.net
11  *
12  *
13  *      Based upon Pthreads-win32 - POSIX Threads Library for Win32
14  *      Copyright(C) 1998 John E. Bossom
15  *      Copyright(C) 1999,2005 Pthreads-win32 contributors
16  *
17  *      Contact Email: rpj@callisto.canberra.edu.au
18  *
19  *      The original list of contributors to the Pthreads-win32 project
20  *      is contained in the file CONTRIBUTORS.ptw32 included with the
21  *      source code distribution. The list can also be seen at the
22  *      following World Wide Web location:
23  *      http://sources.redhat.com/pthreads-win32/contributors.html
24  *
25  *      This library is free software; you can redistribute it and/or
26  *      modify it under the terms of the GNU Lesser General Public
27  *      License as published by the Free Software Foundation; either
28  *      version 2 of the License, or (at your option) any later version.
29  *
30  *      This library is distributed in the hope that it will be useful,
31  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
32  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
33  *      Lesser General Public License for more details.
34  *
35  *      You should have received a copy of the GNU Lesser General Public
36  *      License along with this library in the file COPYING.LIB;
37  *      if not, write to the Free Software Foundation, Inc.,
38  *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
39  *
40  * --------------------------------------------------------------------------
41  *
42  * Test Synopsis:
43  * - Confirm that thread reuse works for joined threads.
44  *
45  * Test Method (Validation or Falsification):
46  * -
47  *
48  * Requirements Tested:
49  * -
50  *
51  * Features Tested:
52  * -
53  *
54  * Cases Tested:
55  * -
56  *
57  * Description:
58  * -
59  *
60  * Environment:
61  * -
62  *
63  * Input:
64  * - None.
65  *
66  * Output:
67  * - File name, Line number, and failed expression on failure.
68  * - No output on success.
69  *
70  * Assumptions:
71  * -
72  *
73  * Pass Criteria:
74  * - Process returns zero exit status.
75  *
76  * Fail Criteria:
77  * - Process returns non-zero exit status.
78  */
79 
80 #include "test.h"
81 
82 enum
83 {
84   NUMTHREADS = 50
85 };
86 
87 static int washere = 0;
88 
89 static void * func(void * arg)
90 {
91   washere = 1;
92   return arg;
93 }
94 
95 int pthread_test_reuse1()
96 {
97   pthread_t t,
98   last_t;
99   pthread_attr_t attr;
100   void * result = NULL;
101   int i;
102 
103   assert(pthread_attr_init(&attr) == 0);;
104   assert(pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE) == 0);
105 
106   washere = 0;
107   assert(pthread_create(&t, &attr, func, NULL) == 0);
108   assert(pthread_join(t, &result) == 0);;
109   assert(result == 0);
110   assert(washere == 1);
111   last_t = t;
112 
113   for (i = 1; i < NUMTHREADS; i++)
114     {
115       washere = 0;
116       assert(pthread_create(&t, &attr, func, (void *) i) == 0);
117       pthread_join(t, &result);
118       assert((int) result == i);
119       assert(washere == 1);
120       /* thread IDs should be unique */
121       assert(!pthread_equal(t, last_t));
122       /* thread struct pointers should be the same */
123       assert(t.p == last_t.p);
124       /* thread handle reuse counter should be different by one */
125       assert(t.x == last_t.x+1);
126       last_t = t;
127     }
128 
129   return 0;
130 }
131