summaryrefslogtreecommitdiffstats
path: root/Python/thread_solaris.h
blob: e902245faadeabfccd6b96f7f717425f9defaf5b (plain)
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
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
/***********************************************************
Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
The Netherlands.

                        All Rights Reserved

Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in
supporting documentation, and that the names of Stichting Mathematisch
Centrum or CWI or Corporation for National Research Initiatives or
CNRI not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.

While CWI is the initial source for this software, a modified version
is made available by the Corporation for National Research Initiatives
(CNRI) at the Internet address ftp://ftp.python.org.

STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.

******************************************************************/

#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#include </usr/include/thread.h>
#undef _POSIX_THREADS


/*
 * Initialization.
 */
static void PyThread__init_thread _P0()
{
}

/*
 * Thread support.
 */
struct func_arg {
	void (*func) _P((void *));
	void *arg;
};

static void *new_func _P1(funcarg, void *funcarg)
{
	void (*func) _P((void *));
	void *arg;

	func = ((struct func_arg *) funcarg)->func;
	arg = ((struct func_arg *) funcarg)->arg;
	free(funcarg);
	(*func)(arg);
	return 0;
}


int PyThread_start_new_thread _P2(func, void (*func) _P((void *)), arg, void *arg)
{
	struct func_arg *funcarg;
	int success = 0;	/* init not needed when SOLARIS_THREADS and */
				/* C_THREADS implemented properly */

	dprintf(("PyThread_start_new_thread called\n"));
	if (!initialized)
		PyThread_init_thread();
	funcarg = (struct func_arg *) malloc(sizeof(struct func_arg));
	funcarg->func = func;
	funcarg->arg = arg;
	if (thr_create(0, 0, new_func, funcarg, THR_DETACHED, 0)) {
		perror("thr_create");
		free((void *) funcarg);
		success = -1;
	}
	return success < 0 ? 0 : 1;
}

long PyThread_get_thread_ident _P0()
{
	if (!initialized)
		PyThread_init_thread();
	return thr_self();
}

static void do_PyThread_exit_thread _P1(no_cleanup, int no_cleanup)
{
	dprintf(("PyThread_exit_thread called\n"));
	if (!initialized)
		if (no_cleanup)
			_exit(0);
		else
			exit(0);
	thr_exit(0);
}

void PyThread_exit_thread _P0()
{
	do_PyThread_exit_thread(0);
}

void PyThread__exit_thread _P0()
{
	do_PyThread_exit_thread(1);
}

#ifndef NO_EXIT_PROG
static void do_PyThread_exit_prog _P2(status, int status, no_cleanup, int no_cleanup)
{
	dprintf(("PyThread_exit_prog(%d) called\n", status));
	if (!initialized)
		if (no_cleanup)
			_exit(status);
		else
			exit(status);
	if (no_cleanup)
		_exit(status);
	else
		exit(status);
}

void PyThread_exit_prog _P1(status, int status)
{
	do_PyThread_exit_prog(status, 0);
}

void PyThread__exit_prog _P1(status, int status)
{
	do_PyThread_exit_prog(status, 1);
}
#endif /* NO_EXIT_PROG */

/*
 * Lock support.
 */
PyThread_type_lock PyThread_allocate_lock _P0()
{
	mutex_t *lock;

	dprintf(("PyThread_allocate_lock called\n"));
	if (!initialized)
		PyThread_init_thread();

	lock = (mutex_t *) malloc(sizeof(mutex_t));
	if (mutex_init(lock, USYNC_THREAD, 0)) {
		perror("mutex_init");
		free((void *) lock);
		lock = 0;
	}
	dprintf(("PyThread_allocate_lock() -> %lx\n", (long)lock));
	return (PyThread_type_lock) lock;
}

void PyThread_free_lock _P1(lock, PyThread_type_lock lock)
{
	dprintf(("PyThread_free_lock(%lx) called\n", (long)lock));
	mutex_destroy((mutex_t *) lock);
	free((void *) lock);
}

int PyThread_acquire_lock _P2(lock, PyThread_type_lock lock, waitflag, int waitflag)
{
	int success;

	dprintf(("PyThread_acquire_lock(%lx, %d) called\n", (long)lock, waitflag));
	if (waitflag)
		success = mutex_lock((mutex_t *) lock);
	else
		success = mutex_trylock((mutex_t *) lock);
	if (success < 0)
		perror(waitflag ? "mutex_lock" : "mutex_trylock");
	else
		success = !success; /* solaris does it the other way round */
	dprintf(("PyThread_acquire_lock(%lx, %d) -> %d\n", (long)lock, waitflag, success));
	return success;
}

void PyThread_release_lock _P1(lock, PyThread_type_lock lock)
{
	dprintf(("PyThread_release_lock(%lx) called\n", (long)lock));
	if (mutex_unlock((mutex_t *) lock))
		perror("mutex_unlock");
}

/*
 * Semaphore support.
 */
PyThread_type_sema PyThread_allocate_sema _P1(value, int value)
{
	sema_t *sema;
	dprintf(("PyThread_allocate_sema called\n"));
	if (!initialized)
		PyThread_init_thread();

	sema = (sema_t *) malloc(sizeof(sema_t));
	if (sema_init(sema, value, USYNC_THREAD, 0)) {
		perror("sema_init");
		free((void *) sema);
		sema = 0;
	}
	dprintf(("PyThread_allocate_sema() -> %lx\n", (long) sema));
	return (PyThread_type_sema) sema;
}

void PyThread_free_sema _P1(sema, PyThread_type_sema sema)
{
	dprintf(("PyThread_free_sema(%lx) called\n", (long) sema));
	if (sema_destroy((sema_t *) sema))
		perror("sema_destroy");
	free((void *) sema);
}

int PyThread_down_sema _P2(sema, PyThread_type_sema sema, waitflag, int waitflag)
{
	int success;

	dprintf(("PyThread_down_sema(%lx) called\n", (long) sema));
	if (waitflag)
		success = sema_wait((sema_t *) sema);
	else
		success = sema_trywait((sema_t *) sema);
	if (success < 0) {
		if (errno == EBUSY)
			success = 0;
		else
			perror("sema_wait");
	}
	else
		success = !success;
	dprintf(("PyThread_down_sema(%lx) return %d\n", (long) sema, success));
	return success;
}

void PyThread_up_sema _P1(sema, PyThread_type_sema sema)
{
	dprintf(("PyThread_up_sema(%lx)\n", (long) sema));
	if (sema_post((sema_t *) sema))
		perror("sema_post");
}