1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
/*
* Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#include <stdlib.h>
#include <stdio.h>
/* testbase_nsk threads: */
#include <native_thread.h>
/***************************************************************/
#ifdef _WIN32
#define windows
#include <windows.h>
#include <process.h> /* for thread routines */
typedef unsigned int THREAD_ID;
#else // !_WIN32
#include <unistd.h>
#ifdef sun
#include <thread.h>
typedef thread_t THREAD_ID;
#else // !sun
#include <pthread.h>
typedef pthread_t THREAD_ID;
#endif // !sun
#endif // !_WIN32
/***************************************************************/
extern "C" {
/**
* A mirror to control a thread.
*/
typedef
struct STRUCT_THREAD {
PROCEDURE procedure;
void* context;
/**/
int started;
int finished;
int status;
/**/
THREAD_ID id;
}
THREAD;
/***************************************************************/
/**
* Return a new thread mirror, or NULL if failed.
*/
void* THREAD_new(PROCEDURE procedure, void* context) {
THREAD* thread = (THREAD*)malloc(sizeof(THREAD));
if (thread == NULL)
return NULL;
thread->procedure = procedure;
thread->context = context;
thread->started = 0; /* No */
thread->finished = 0;
thread->status = -1; /* undefined */
return thread;
}
/***************************************************************/
#ifdef windows
unsigned __stdcall procedure(void* t) {
#else // !windows
void* procedure(void* t) {
#endif
THREAD* thread = (THREAD*)t;
thread->started = 1;
thread->status = thread->procedure(thread->context);
thread->finished = 1;
return 0;
}
/**
* Return the thread if started OK, or NULL if failed.
*/
void* THREAD_start(void* t) {
THREAD* thread = (THREAD*)t;
if (thread == NULL)
return NULL;
if (thread->started != 0)
return NULL;
/* thread->started = 0; -- not yet */
thread->finished = 0;
thread->status = 0;
{
#ifdef windows
uintptr_t result = _beginthreadex(NULL,0,procedure,thread,0,&(thread->id));
if (result == 0) {
perror("failed to create a native thread");
return NULL;
}
#elif sun
int result = thr_create(NULL,0,procedure,thread,0,&(thread->id));
if (result != 0) {
perror("failed to create a native thread");
return NULL;
}
#else // !windows & !sun
int result = pthread_create(&(thread->id),NULL,procedure,thread);
if (result != 0) {
perror("failed to create a native thread");
return NULL;
}
#endif // !windows & !sun
};
return thread;
}
/***************************************************************/
/**
* Return 1 if the thread has been started, or 0 if not,
* or -1 if thread==NULL.
*/
int THREAD_isStarted(void* t) {
THREAD* thread = (THREAD*)t;
if (thread == NULL)
return -1;
return (thread->started == 1);
}
/**
* Return 1 if the thread has been started and already has finished,
* or 0 if the thread hasn't finish (or even hasn't been started),
* or -1 if thread==NULL.
*/
int THREAD_hasFinished(void* t) {
THREAD* thread = (THREAD*)t;
if (thread == NULL)
return -1;
return (thread->finished == 1);
}
/**
* Return thread->status if thread has finished,
* or return 0 if thread hasn't finished,
* or retuen -1 if thread==NULL.
*/
int THREAD_status(void* t) {
THREAD* thread = (THREAD*)t;
if (thread == NULL)
return -1;
return thread->status;
}
/***************************************************************/
/**
* Cycle with 1 second sleeps until the thread has finished;
* or return immediately, if thread==NULL.
*/
void THREAD_waitFor(void* t) {
THREAD* thread = (THREAD*)t;
if (thread == NULL)
return;
while (thread->finished == 0)
THREAD_sleep(1); /* yield for a second */
}
/***************************************************************/
/**
* Current thread sleeps.
*/
void THREAD_sleep(int seconds) {
#ifdef windows
Sleep(1000L * seconds);
#else
sleep(seconds);
#endif
}
/***************************************************************/
}
|
