1 /* crypto/threads/th-lock.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
64 # include <typedefs.h>
66 #ifdef OPENSSL_SYS_WIN32
75 # include <sys/prctl.h>
80 #include <openssl/lhash.h>
81 #include <openssl/crypto.h>
82 #include <openssl/buffer.h>
83 #include "../../e_os.h"
84 #include <openssl/x509.h>
85 #include <openssl/ssl.h>
86 #include <openssl/err.h>
88 void CRYPTO_thread_setup(void);
89 void CRYPTO_thread_cleanup(void);
91 static void irix_locking_callback(int mode, int type, char *file, int line);
92 static void solaris_locking_callback(int mode, int type, char *file,
94 static void win32_locking_callback(int mode, int type, char *file, int line);
95 static void pthreads_locking_callback(int mode, int type, char *file,
98 static unsigned long irix_thread_id(void);
99 static unsigned long solaris_thread_id(void);
100 static unsigned long pthreads_thread_id(void);
104 * CRYPTO_thread_setup();
106 * CRYPTO_thread_cleanup();
109 #define THREAD_STACK_SIZE (16*1024)
111 #ifdef OPENSSL_SYS_WIN32
113 static HANDLE *lock_cs;
115 void CRYPTO_thread_setup(void)
119 lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(HANDLE));
121 /* Nothing we can do about this...void function! */
124 for (i = 0; i < CRYPTO_num_locks(); i++) {
125 lock_cs[i] = CreateMutex(NULL, FALSE, NULL);
128 CRYPTO_set_locking_callback((void (*)(int, int, char *, int))
129 win32_locking_callback);
130 /* id callback defined */
134 static void CRYPTO_thread_cleanup(void)
138 CRYPTO_set_locking_callback(NULL);
139 for (i = 0; i < CRYPTO_num_locks(); i++)
140 CloseHandle(lock_cs[i]);
141 OPENSSL_free(lock_cs);
144 void win32_locking_callback(int mode, int type, char *file, int line)
146 if (mode & CRYPTO_LOCK) {
147 WaitForSingleObject(lock_cs[type], INFINITE);
149 ReleaseMutex(lock_cs[type]);
153 #endif /* OPENSSL_SYS_WIN32 */
160 static mutex_t *lock_cs;
162 static rwlock_t *lock_cs;
164 static long *lock_count;
166 void CRYPTO_thread_setup(void)
171 lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(mutex_t));
173 lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(rwlock_t));
176 /* Nothing we can do about this...void function! */
179 lock_count = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long));
180 for (i = 0; i < CRYPTO_num_locks(); i++) {
183 mutex_init(&(lock_cs[i]), USYNC_THREAD, NULL);
185 rwlock_init(&(lock_cs[i]), USYNC_THREAD, NULL);
189 CRYPTO_set_id_callback((unsigned long (*)())solaris_thread_id);
190 CRYPTO_set_locking_callback((void (*)())solaris_locking_callback);
193 void CRYPTO_thread_cleanup(void)
197 CRYPTO_set_locking_callback(NULL);
198 for (i = 0; i < CRYPTO_num_locks(); i++) {
200 mutex_destroy(&(lock_cs[i]));
202 rwlock_destroy(&(lock_cs[i]));
205 OPENSSL_free(lock_cs);
206 OPENSSL_free(lock_count);
209 void solaris_locking_callback(int mode, int type, char *file, int line)
211 if (mode & CRYPTO_LOCK) {
213 mutex_lock(&(lock_cs[type]));
215 if (mode & CRYPTO_READ)
216 rw_rdlock(&(lock_cs[type]));
218 rw_wrlock(&(lock_cs[type]));
223 mutex_unlock(&(lock_cs[type]));
225 rw_unlock(&(lock_cs[type]));
230 unsigned long solaris_thread_id(void)
234 ret = (unsigned long)thr_self();
240 /* I don't think this works..... */
242 static usptr_t *arena;
243 static usema_t **lock_cs;
245 void CRYPTO_thread_setup(void)
250 lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(usema_t *));
252 /* Nothing we can do about this...void function! */
256 strcpy(filename, "/tmp/mttest.XXXXXX");
259 usconfig(CONF_STHREADIOOFF);
260 usconfig(CONF_STHREADMALLOCOFF);
261 usconfig(CONF_INITUSERS, 100);
262 usconfig(CONF_LOCKTYPE, US_DEBUGPLUS);
263 arena = usinit(filename);
266 for (i = 0; i < CRYPTO_num_locks(); i++) {
267 lock_cs[i] = usnewsema(arena, 1);
270 CRYPTO_set_id_callback((unsigned long (*)())irix_thread_id);
271 CRYPTO_set_locking_callback((void (*)())irix_locking_callback);
274 void CRYPTO_thread_cleanup(void)
278 CRYPTO_set_locking_callback(NULL);
279 for (i = 0; i < CRYPTO_num_locks(); i++) {
282 sprintf(buf, "%2d:", i);
283 usdumpsema(lock_cs[i], stdout, buf);
284 usfreesema(lock_cs[i], arena);
286 OPENSSL_free(lock_cs);
289 void irix_locking_callback(int mode, int type, char *file, int line)
291 if (mode & CRYPTO_LOCK) {
292 uspsema(lock_cs[type]);
294 usvsema(lock_cs[type]);
298 unsigned long irix_thread_id(void)
302 ret = (unsigned long)getpid();
307 /* Linux and a few others */
310 static pthread_mutex_t *lock_cs;
311 static long *lock_count;
313 void CRYPTO_thread_setup(void)
317 lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(pthread_mutex_t));
318 lock_count = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long));
319 if (!lock_cs || !lock_count) {
320 /* Nothing we can do about this...void function! */
321 OPENSSL_free(lock_cs);
322 OPENSSL_free(lock_count);
325 for (i = 0; i < CRYPTO_num_locks(); i++) {
327 pthread_mutex_init(&(lock_cs[i]), NULL);
330 CRYPTO_set_id_callback((unsigned long (*)())pthreads_thread_id);
331 CRYPTO_set_locking_callback((void (*)())pthreads_locking_callback);
334 void thread_cleanup(void)
338 CRYPTO_set_locking_callback(NULL);
339 for (i = 0; i < CRYPTO_num_locks(); i++) {
340 pthread_mutex_destroy(&(lock_cs[i]));
342 OPENSSL_free(lock_cs);
343 OPENSSL_free(lock_count);
346 void pthreads_locking_callback(int mode, int type, char *file, int line)
348 if (mode & CRYPTO_LOCK) {
349 pthread_mutex_lock(&(lock_cs[type]));
352 pthread_mutex_unlock(&(lock_cs[type]));
356 unsigned long pthreads_thread_id(void)
360 ret = (unsigned long)pthread_self();
364 #endif /* PTHREADS */