mt contained an old copy of mttest.c. remove it and move the other
[openssl.git] / crypto / threads / th-lock.c
1 /* crypto/threads/th-lock.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3  * All rights reserved.
4  *
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.
8  * 
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).
15  * 
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.
22  * 
23  * Redistribution and use in source and binary forms, with or without
24  * modification, are permitted provided that the following conditions
25  * are met:
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)"
40  * 
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
51  * SUCH DAMAGE.
52  * 
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.]
57  */
58
59 #include <stdio.h>
60 #include <stdlib.h>
61 #include <string.h>
62 #include <errno.h>
63 #ifdef LINUX
64 #include <typedefs.h>
65 #endif
66 #ifdef WIN32
67 #include <windows.h>
68 #endif
69 #ifdef SOLARIS
70 #include <synch.h>
71 #include <thread.h>
72 #endif
73 #ifdef IRIX
74 #include <ulocks.h>
75 #include <sys/prctl.h>
76 #endif
77 #include <openssl/lhash.h>
78 #include <openssl/crypto.h>
79 #include <openssl/buffer.h>
80 #include <openssl/e_os.h>
81 #include <openssl/x509.h>
82 #include <openssl/ssl.h>
83 #include <openssl/err.h>
84
85 int CRYPTO_thread_setup(void);
86 void CRYPTO_thread_cleanup(void);
87
88 static void irix_locking_callback(int mode,int type,char *file,int line);
89 static void solaris_locking_callback(int mode,int type,char *file,int line);
90 static void win32_locking_callback(int mode,int type,char *file,int line);
91 static void pthreads_locking_callback(int mode,int type,char *file,int line);
92
93 static unsigned long irix_thread_id(void );
94 static unsigned long solaris_thread_id(void );
95 static unsigned long pthreads_thread_id(void );
96
97 /* usage:
98  * CRYPTO_thread_setup();
99  * application code
100  * CRYPTO_thread_cleanup();
101  */
102
103 #define THREAD_STACK_SIZE (16*1024)
104
105 #ifdef WIN32
106
107 static HANDLE lock_cs[CRYPTO_NUM_LOCKS];
108
109 int CRYPTO_thread_setup(void)
110         {
111         int i;
112
113         for (i=0; i<CRYPTO_NUM_LOCKS; i++)
114                 {
115                 lock_cs[i]=CreateMutex(NULL,FALSE,NULL);
116                 }
117
118         CRYPTO_set_locking_callback((void (*)(int,int,char *,int))win32_locking_callback);
119         /* id callback defined */
120         return(1);
121         }
122
123 static void CRYPTO_thread_cleanup(void)
124         {
125         int i;
126
127         CRYPTO_set_locking_callback(NULL);
128         for (i=0; i<CRYPTO_NUM_LOCKS; i++)
129                 CloseHandle(lock_cs[i]);
130         }
131
132 void win32_locking_callback(int mode, int type, char *file, int line)
133         {
134         if (mode & CRYPTO_LOCK)
135                 {
136                 WaitForSingleObject(lock_cs[type],INFINITE);
137                 }
138         else
139                 {
140                 ReleaseMutex(lock_cs[type]);
141                 }
142         }
143
144 #endif /* WIN32 */
145
146 #ifdef SOLARIS
147
148 #define USE_MUTEX
149
150 static mutex_t lock_cs[CRYPTO_NUM_LOCKS];
151 #ifdef USE_MUTEX
152 static long lock_count[CRYPTO_NUM_LOCKS];
153 #else
154 static rwlock_t lock_cs[CRYPTO_NUM_LOCKS];
155 #endif
156
157 void CRYPTO_thread_setup(void)
158         {
159         int i;
160
161         for (i=0; i<CRYPTO_NUM_LOCKS; i++)
162                 {
163                 lock_count[i]=0;
164 #ifdef USE_MUTEX
165                 mutex_init(&(lock_cs[i]),USYNC_THREAD,NULL);
166 #else
167                 rwlock_init(&(lock_cs[i]),USYNC_THREAD,NULL);
168 #endif
169                 }
170
171         CRYPTO_set_id_callback((unsigned long (*)())solaris_thread_id);
172         CRYPTO_set_locking_callback((void (*)())solaris_locking_callback);
173         }
174
175 void CRYPTO_thread_cleanup(void)
176         {
177         int i;
178
179         CRYPTO_set_locking_callback(NULL);
180         for (i=0; i<CRYPTO_NUM_LOCKS; i++)
181                 {
182 #ifdef USE_MUTEX
183                 mutex_destroy(&(lock_cs[i]));
184 #else
185                 rwlock_destroy(&(lock_cs[i]));
186 #endif
187                 }
188         }
189
190 void solaris_locking_callback(int mode, int type, char *file, int line)
191         {
192 #if 0
193         fprintf(stderr,"thread=%4d mode=%s lock=%s %s:%d\n",
194                 CRYPTO_thread_id(),
195                 (mode&CRYPTO_LOCK)?"l":"u",
196                 (type&CRYPTO_READ)?"r":"w",file,line);
197 #endif
198
199 #if 0
200         if (CRYPTO_LOCK_SSL_CERT == type)
201                 fprintf(stderr,"(t,m,f,l) %ld %d %s %d\n",
202                         CRYPTO_thread_id(),
203                         mode,file,line);
204 #endif
205         if (mode & CRYPTO_LOCK)
206                 {
207 #ifdef USE_MUTEX
208                 mutex_lock(&(lock_cs[type]));
209 #else
210                 if (mode & CRYPTO_READ)
211                         rw_rdlock(&(lock_cs[type]));
212                 else
213                         rw_wrlock(&(lock_cs[type]));
214 #endif
215                 lock_count[type]++;
216                 }
217         else
218                 {
219 #ifdef USE_MUTEX
220                 mutex_unlock(&(lock_cs[type]));
221 #else
222                 rw_unlock(&(lock_cs[type]));
223 #endif
224                 }
225         }
226
227 unsigned long solaris_thread_id(void)
228         {
229         unsigned long ret;
230
231         ret=(unsigned long)thr_self();
232         return(ret);
233         }
234 #endif /* SOLARIS */
235
236 #ifdef IRIX
237 /* I don't think this works..... */
238
239 static usptr_t *arena;
240 static usema_t *lock_cs[CRYPTO_NUM_LOCKS];
241
242 void CRYPTO_thread_setup(void)
243         {
244         int i;
245         char filename[20];
246
247         strcpy(filename,"/tmp/mttest.XXXXXX");
248         mktemp(filename);
249
250         usconfig(CONF_STHREADIOOFF);
251         usconfig(CONF_STHREADMALLOCOFF);
252         usconfig(CONF_INITUSERS,100);
253         usconfig(CONF_LOCKTYPE,US_DEBUGPLUS);
254         arena=usinit(filename);
255         unlink(filename);
256
257         for (i=0; i<CRYPTO_NUM_LOCKS; i++)
258                 {
259                 lock_cs[i]=usnewsema(arena,1);
260                 }
261
262         CRYPTO_set_id_callback((unsigned long (*)())irix_thread_id);
263         CRYPTO_set_locking_callback((void (*)())irix_locking_callback);
264         }
265
266 void CRYPTO_thread_cleanup(void)
267         {
268         int i;
269
270         CRYPTO_set_locking_callback(NULL);
271         for (i=0; i<CRYPTO_NUM_LOCKS; i++)
272                 {
273                 char buf[10];
274
275                 sprintf(buf,"%2d:",i);
276                 usdumpsema(lock_cs[i],stdout,buf);
277                 usfreesema(lock_cs[i],arena);
278                 }
279         }
280
281 void irix_locking_callback(int mode, int type, char *file, int line)
282         {
283         if (mode & CRYPTO_LOCK)
284                 {
285                 uspsema(lock_cs[type]);
286                 }
287         else
288                 {
289                 usvsema(lock_cs[type]);
290                 }
291         }
292
293 unsigned long irix_thread_id(void)
294         {
295         unsigned long ret;
296
297         ret=(unsigned long)getpid();
298         return(ret);
299         }
300 #endif /* IRIX */
301
302 /* Linux and a few others */
303 #ifdef PTHREADS
304
305 static pthread_mutex_t lock_cs[CRYPTO_NUM_LOCKS];
306 static long lock_count[CRYPTO_NUM_LOCKS];
307
308 void CRYPTO_thread_setup(void)
309         {
310         int i;
311
312         for (i=0; i<CRYPTO_NUM_LOCKS; i++)
313                 {
314                 lock_count[i]=0;
315                 pthread_mutex_init(&(lock_cs[i]),NULL);
316                 }
317
318         CRYPTO_set_id_callback((unsigned long (*)())pthreads_thread_id);
319         CRYPTO_set_locking_callback((void (*)())pthreads_locking_callback);
320         }
321
322 void thread_cleanup(void)
323         {
324         int i;
325
326         CRYPTO_set_locking_callback(NULL);
327         for (i=0; i<CRYPTO_NUM_LOCKS; i++)
328                 {
329                 pthread_mutex_destroy(&(lock_cs[i]));
330                 }
331         }
332
333 void pthreads_locking_callback(int mode, int type, char *file,
334              int line)
335       {
336 #if 0
337         fprintf(stderr,"thread=%4d mode=%s lock=%s %s:%d\n",
338                 CRYPTO_thread_id(),
339                 (mode&CRYPTO_LOCK)?"l":"u",
340                 (type&CRYPTO_READ)?"r":"w",file,line);
341 #endif
342 #if 0
343         if (CRYPTO_LOCK_SSL_CERT == type)
344                 fprintf(stderr,"(t,m,f,l) %ld %d %s %d\n",
345                 CRYPTO_thread_id(),
346                 mode,file,line);
347 #endif
348         if (mode & CRYPTO_LOCK)
349                 {
350                 pthread_mutex_lock(&(lock_cs[type]));
351                 lock_count[type]++;
352                 }
353         else
354                 {
355                 pthread_mutex_unlock(&(lock_cs[type]));
356                 }
357         }
358
359 unsigned long pthreads_thread_id(void)
360         {
361         unsigned long ret;
362
363         ret=(unsigned long)pthread_self();
364         return(ret);
365         }
366
367 #endif /* PTHREADS */
368