crypto/threads/th-lock.c - third_party/openssl - Git at Google

 /* crypto/threads/th-lock.c */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
  * This package is an SSL implementation written
  * by Eric Young (eay@cryptsoft.com).
  * The implementation was written so as to conform with Netscapes SSL.
  *
  * This library is free for commercial and non-commercial use as long as
  * the following conditions are aheared to.  The following conditions
  * apply to all code found in this distribution, be it the RC4, RSA,
  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  * included with this distribution is covered by the same copyright terms
  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  *
  * Copyright remains Eric Young's, and as such any Copyright notices in
  * the code are not to be removed.
  * If this package is used in a product, Eric Young should be given attribution
  * as the author of the parts of the library used.
  * This can be in the form of a textual message at program startup or
  * in documentation (online or textual) provided with the package.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. All advertising materials mentioning features or use of this software
  *    must display the following acknowledgement:
  *    "This product includes cryptographic software written by
  *     Eric Young (eay@cryptsoft.com)"
  *    The word 'cryptographic' can be left out if the rouines from the library
  *    being used are not cryptographic related :-).
  * 4. If you include any Windows specific code (or a derivative thereof) from
  *    the apps directory (application code) you must include an acknowledgement:
  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  *
  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
  * The licence and distribution terms for any publically available version or
  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  * copied and put under another distribution licence
  * [including the GNU Public Licence.]
  */

 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <errno.h>
 #ifdef LINUX
 #include <typedefs.h>
 #endif
 #ifdef OPENSSL_SYS_WIN32
 #include <windows.h>
 #endif
 #ifdef SOLARIS
 #include <synch.h>
 #include <thread.h>
 #endif
 #ifdef IRIX
 #include <ulocks.h>
 #include <sys/prctl.h>
 #endif
 #ifdef PTHREADS
 #include <pthread.h>
 #endif
 #include <openssl/lhash.h>
 #include <openssl/crypto.h>
 #include <openssl/buffer.h>
 #include <openssl/e_os.h>
 #include <openssl/x509.h>
 #include <openssl/ssl.h>
 #include <openssl/err.h>

 void CRYPTO_thread_setup(void);
 void CRYPTO_thread_cleanup(void);

 static void irix_locking_callback(int mode,int type,char *file,int line);
 static void solaris_locking_callback(int mode,int type,char *file,int line);
 static void win32_locking_callback(int mode,int type,char *file,int line);
 static void pthreads_locking_callback(int mode,int type,char *file,int line);

 static unsigned long irix_thread_id(void );
 static unsigned long solaris_thread_id(void );
 static unsigned long pthreads_thread_id(void );

 /* usage:
  * CRYPTO_thread_setup();
  * application code
  * CRYPTO_thread_cleanup();
  */

 #define THREAD_STACK_SIZE (16*1024)

 #ifdef OPENSSL_SYS_WIN32

 static HANDLE *lock_cs;

 void CRYPTO_thread_setup(void)
 	{
 	int i;

 	lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(HANDLE));
 	for (i=0; i<CRYPTO_num_locks(); i++)
 		{
 		lock_cs[i]=CreateMutex(NULL,FALSE,NULL);
 		}

 	CRYPTO_set_locking_callback((void (*)(int,int,char *,int))win32_locking_callback);
 	/* id callback defined */
 	return(1);
 	}

 static void CRYPTO_thread_cleanup(void)
 	{
 	int i;

 	CRYPTO_set_locking_callback(NULL);
 	for (i=0; i<CRYPTO_num_locks(); i++)
 		CloseHandle(lock_cs[i]);
 	OPENSSL_free(lock_cs);
 	}

 void win32_locking_callback(int mode, int type, char *file, int line)
 	{
 	if (mode & CRYPTO_LOCK)
 		{
 		WaitForSingleObject(lock_cs[type],INFINITE);
 		}
 	else
 		{
 		ReleaseMutex(lock_cs[type]);
 		}
 	}

 #endif /* OPENSSL_SYS_WIN32 */

 #ifdef SOLARIS

 #define USE_MUTEX

 #ifdef USE_MUTEX
 static mutex_t *lock_cs;
 #else
 static rwlock_t *lock_cs;
 #endif
 static long *lock_count;

 void CRYPTO_thread_setup(void)
 	{
 	int i;

 #ifdef USE_MUTEX
 	lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(mutex_t));
 #else
 	lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(rwlock_t));
 #endif
 	lock_count=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long));
 	for (i=0; i<CRYPTO_num_locks(); i++)
 		{
 		lock_count[i]=0;
 #ifdef USE_MUTEX
 		mutex_init(&(lock_cs[i]),USYNC_THREAD,NULL);
 #else
 		rwlock_init(&(lock_cs[i]),USYNC_THREAD,NULL);
 #endif
 		}

 	CRYPTO_set_id_callback((unsigned long (*)())solaris_thread_id);
 	CRYPTO_set_locking_callback((void (*)())solaris_locking_callback);
 	}

 void CRYPTO_thread_cleanup(void)
 	{
 	int i;

 	CRYPTO_set_locking_callback(NULL);
 	for (i=0; i<CRYPTO_num_locks(); i++)
 		{
 #ifdef USE_MUTEX
 		mutex_destroy(&(lock_cs[i]));
 #else
 		rwlock_destroy(&(lock_cs[i]));
 #endif
 		}
 	OPENSSL_free(lock_cs);
 	OPENSSL_free(lock_count);
 	}

 void solaris_locking_callback(int mode, int type, char *file, int line)
 	{
 #if 0
 	fprintf(stderr,"thread=%4d mode=%s lock=%s %s:%d\n",
 		CRYPTO_thread_id(),
 		(mode&CRYPTO_LOCK)?"l":"u",
 		(type&CRYPTO_READ)?"r":"w",file,line);
 #endif

 #if 0
 	if (CRYPTO_LOCK_SSL_CERT == type)
 		fprintf(stderr,"(t,m,f,l) %ld %d %s %d\n",
 			CRYPTO_thread_id(),
 			mode,file,line);
 #endif
 	if (mode & CRYPTO_LOCK)
 		{
 #ifdef USE_MUTEX
 		mutex_lock(&(lock_cs[type]));
 #else
 		if (mode & CRYPTO_READ)
 			rw_rdlock(&(lock_cs[type]));
 		else
 			rw_wrlock(&(lock_cs[type]));
 #endif
 		lock_count[type]++;
 		}
 	else
 		{
 #ifdef USE_MUTEX
 		mutex_unlock(&(lock_cs[type]));
 #else
 		rw_unlock(&(lock_cs[type]));
 #endif
 		}
 	}

 unsigned long solaris_thread_id(void)
 	{
 	unsigned long ret;

 	ret=(unsigned long)thr_self();
 	return(ret);
 	}
 #endif /* SOLARIS */

 #ifdef IRIX
 /* I don't think this works..... */

 static usptr_t *arena;
 static usema_t **lock_cs;

 void CRYPTO_thread_setup(void)
 	{
 	int i;
 	char filename[20];

 	strcpy(filename,"/tmp/mttest.XXXXXX");
 	mktemp(filename);

 	usconfig(CONF_STHREADIOOFF);
 	usconfig(CONF_STHREADMALLOCOFF);
 	usconfig(CONF_INITUSERS,100);
 	usconfig(CONF_LOCKTYPE,US_DEBUGPLUS);
 	arena=usinit(filename);
 	unlink(filename);

 	lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(usema_t *));
 	for (i=0; i<CRYPTO_num_locks(); i++)
 		{
 		lock_cs[i]=usnewsema(arena,1);
 		}

 	CRYPTO_set_id_callback((unsigned long (*)())irix_thread_id);
 	CRYPTO_set_locking_callback((void (*)())irix_locking_callback);
 	}

 void CRYPTO_thread_cleanup(void)
 	{
 	int i;

 	CRYPTO_set_locking_callback(NULL);
 	for (i=0; i<CRYPTO_num_locks(); i++)
 		{
 		char buf[10];

 		sprintf(buf,"%2d:",i);
 		usdumpsema(lock_cs[i],stdout,buf);
 		usfreesema(lock_cs[i],arena);
 		}
 	OPENSSL_free(lock_cs);
 	}

 void irix_locking_callback(int mode, int type, char *file, int line)
 	{
 	if (mode & CRYPTO_LOCK)
 		{
 		uspsema(lock_cs[type]);
 		}
 	else
 		{
 		usvsema(lock_cs[type]);
 		}
 	}

 unsigned long irix_thread_id(void)
 	{
 	unsigned long ret;

 	ret=(unsigned long)getpid();
 	return(ret);
 	}
 #endif /* IRIX */

 /* Linux and a few others */
 #ifdef PTHREADS

 static pthread_mutex_t *lock_cs;
 static long *lock_count;

 void CRYPTO_thread_setup(void)
 	{
 	int i;

 	lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(pthread_mutex_t));
 	lock_count=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long));
 	for (i=0; i<CRYPTO_num_locks(); i++)
 		{
 		lock_count[i]=0;
 		pthread_mutex_init(&(lock_cs[i]),NULL);
 		}

 	CRYPTO_set_id_callback((unsigned long (*)())pthreads_thread_id);
 	CRYPTO_set_locking_callback((void (*)())pthreads_locking_callback);
 	}

 void thread_cleanup(void)
 	{
 	int i;

 	CRYPTO_set_locking_callback(NULL);
 	for (i=0; i<CRYPTO_num_locks(); i++)
 		{
 		pthread_mutex_destroy(&(lock_cs[i]));
 		}
 	OPENSSL_free(lock_cs);
 	OPENSSL_free(lock_count);
 	}

 void pthreads_locking_callback(int mode, int type, char *file,
 	     int line)
       {
 #if 0
 	fprintf(stderr,"thread=%4d mode=%s lock=%s %s:%d\n",
 		CRYPTO_thread_id(),
 		(mode&CRYPTO_LOCK)?"l":"u",
 		(type&CRYPTO_READ)?"r":"w",file,line);
 #endif
 #if 0
 	if (CRYPTO_LOCK_SSL_CERT == type)
 		fprintf(stderr,"(t,m,f,l) %ld %d %s %d\n",
 		CRYPTO_thread_id(),
 		mode,file,line);
 #endif
 	if (mode & CRYPTO_LOCK)
 		{
 		pthread_mutex_lock(&(lock_cs[type]));
 		lock_count[type]++;
 		}
 	else
 		{
 		pthread_mutex_unlock(&(lock_cs[type]));
 		}
 	}

 unsigned long pthreads_thread_id(void)
 	{
 	unsigned long ret;

 	ret=(unsigned long)pthread_self();
 	return(ret);
 	}

 #endif /* PTHREADS */
	/* crypto/threads/th-lock.c */
	/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
	* All rights reserved.
	*
	* This package is an SSL implementation written
	* by Eric Young (eay@cryptsoft.com).
	* The implementation was written so as to conform with Netscapes SSL.
	*
	* This library is free for commercial and non-commercial use as long as
	* the following conditions are aheared to. The following conditions
	* apply to all code found in this distribution, be it the RC4, RSA,
	* lhash, DES, etc., code; not just the SSL code. The SSL documentation
	* included with this distribution is covered by the same copyright terms
	* except that the holder is Tim Hudson (tjh@cryptsoft.com).
	*
	* Copyright remains Eric Young's, and as such any Copyright notices in
	* the code are not to be removed.
	* If this package is used in a product, Eric Young should be given attribution
	* as the author of the parts of the library used.
	* This can be in the form of a textual message at program startup or
	* in documentation (online or textual) provided with the package.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	* 1. Redistributions of source code must retain the copyright
	* notice, this list of conditions and the following disclaimer.
	* 2. Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in the
	* documentation and/or other materials provided with the distribution.
	* 3. All advertising materials mentioning features or use of this software
	* must display the following acknowledgement:
	* "This product includes cryptographic software written by
	* Eric Young (eay@cryptsoft.com)"
	* The word 'cryptographic' can be left out if the rouines from the library
	* being used are not cryptographic related :-).
	* 4. If you include any Windows specific code (or a derivative thereof) from
	* the apps directory (application code) you must include an acknowledgement:
	* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
	*
	* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	* SUCH DAMAGE.
	*
	* The licence and distribution terms for any publically available version or
	* derivative of this code cannot be changed. i.e. this code cannot simply be
	* copied and put under another distribution licence
	* [including the GNU Public Licence.]
	*/

	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>
	#include <errno.h>
	#ifdef LINUX
	#include <typedefs.h>
	#endif
	#ifdef OPENSSL_SYS_WIN32
	#include <windows.h>
	#endif
	#ifdef SOLARIS
	#include <synch.h>
	#include <thread.h>
	#endif
	#ifdef IRIX
	#include <ulocks.h>
	#include <sys/prctl.h>
	#endif
	#ifdef PTHREADS
	#include <pthread.h>
	#endif
	#include <openssl/lhash.h>
	#include <openssl/crypto.h>
	#include <openssl/buffer.h>
	#include <openssl/e_os.h>
	#include <openssl/x509.h>
	#include <openssl/ssl.h>
	#include <openssl/err.h>

	void CRYPTO_thread_setup(void);
	void CRYPTO_thread_cleanup(void);

	static void irix_locking_callback(int mode,int type,char *file,int line);
	static void solaris_locking_callback(int mode,int type,char *file,int line);
	static void win32_locking_callback(int mode,int type,char *file,int line);
	static void pthreads_locking_callback(int mode,int type,char *file,int line);

	static unsigned long irix_thread_id(void );
	static unsigned long solaris_thread_id(void );
	static unsigned long pthreads_thread_id(void );

	/* usage:
	* CRYPTO_thread_setup();
	* application code
	* CRYPTO_thread_cleanup();
	*/

	#define THREAD_STACK_SIZE (16*1024)

	#ifdef OPENSSL_SYS_WIN32

	static HANDLE *lock_cs;

	void CRYPTO_thread_setup(void)
	{
	int i;

	lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(HANDLE));
	for (i=0; i<CRYPTO_num_locks(); i++)
	{
	lock_cs[i]=CreateMutex(NULL,FALSE,NULL);
	}

	CRYPTO_set_locking_callback((void ()(int,int,char ,int))win32_locking_callback);
	/* id callback defined */
	return(1);
	}

	static void CRYPTO_thread_cleanup(void)
	{
	int i;

	CRYPTO_set_locking_callback(NULL);
	for (i=0; i<CRYPTO_num_locks(); i++)
	CloseHandle(lock_cs[i]);
	OPENSSL_free(lock_cs);
	}

	void win32_locking_callback(int mode, int type, char *file, int line)
	{
	if (mode & CRYPTO_LOCK)
	{
	WaitForSingleObject(lock_cs[type],INFINITE);
	}
	else
	{
	ReleaseMutex(lock_cs[type]);
	}
	}

	#endif /* OPENSSL_SYS_WIN32 */

	#ifdef SOLARIS

	#define USE_MUTEX

	#ifdef USE_MUTEX
	static mutex_t *lock_cs;
	#else
	static rwlock_t *lock_cs;
	#endif
	static long *lock_count;

	void CRYPTO_thread_setup(void)
	{
	int i;

	#ifdef USE_MUTEX
	lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(mutex_t));
	#else
	lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(rwlock_t));
	#endif
	lock_count=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long));
	for (i=0; i<CRYPTO_num_locks(); i++)
	{
	lock_count[i]=0;
	#ifdef USE_MUTEX
	mutex_init(&(lock_cs[i]),USYNC_THREAD,NULL);
	#else
	rwlock_init(&(lock_cs[i]),USYNC_THREAD,NULL);
	#endif
	}

	CRYPTO_set_id_callback((unsigned long (*)())solaris_thread_id);
	CRYPTO_set_locking_callback((void (*)())solaris_locking_callback);
	}

	void CRYPTO_thread_cleanup(void)
	{
	int i;

	CRYPTO_set_locking_callback(NULL);
	for (i=0; i<CRYPTO_num_locks(); i++)
	{
	#ifdef USE_MUTEX
	mutex_destroy(&(lock_cs[i]));
	#else
	rwlock_destroy(&(lock_cs[i]));
	#endif
	}
	OPENSSL_free(lock_cs);
	OPENSSL_free(lock_count);
	}

	void solaris_locking_callback(int mode, int type, char *file, int line)
	{
	#if 0
	fprintf(stderr,"thread=%4d mode=%s lock=%s %s:%d\n",
	CRYPTO_thread_id(),
	(mode&CRYPTO_LOCK)?"l":"u",
	(type&CRYPTO_READ)?"r":"w",file,line);
	#endif

	#if 0
	if (CRYPTO_LOCK_SSL_CERT == type)
	fprintf(stderr,"(t,m,f,l) %ld %d %s %d\n",
	CRYPTO_thread_id(),
	mode,file,line);
	#endif
	if (mode & CRYPTO_LOCK)
	{
	#ifdef USE_MUTEX
	mutex_lock(&(lock_cs[type]));
	#else
	if (mode & CRYPTO_READ)
	rw_rdlock(&(lock_cs[type]));
	else
	rw_wrlock(&(lock_cs[type]));
	#endif
	lock_count[type]++;
	}
	else
	{
	#ifdef USE_MUTEX
	mutex_unlock(&(lock_cs[type]));
	#else
	rw_unlock(&(lock_cs[type]));
	#endif
	}
	}

	unsigned long solaris_thread_id(void)
	{
	unsigned long ret;

	ret=(unsigned long)thr_self();
	return(ret);
	}
	#endif /* SOLARIS */

	#ifdef IRIX
	/* I don't think this works..... */

	static usptr_t *arena;
	static usema_t **lock_cs;

	void CRYPTO_thread_setup(void)
	{
	int i;
	char filename[20];

	strcpy(filename,"/tmp/mttest.XXXXXX");
	mktemp(filename);

	usconfig(CONF_STHREADIOOFF);
	usconfig(CONF_STHREADMALLOCOFF);
	usconfig(CONF_INITUSERS,100);
	usconfig(CONF_LOCKTYPE,US_DEBUGPLUS);
	arena=usinit(filename);
	unlink(filename);

	lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(usema_t *));
	for (i=0; i<CRYPTO_num_locks(); i++)
	{
	lock_cs[i]=usnewsema(arena,1);
	}

	CRYPTO_set_id_callback((unsigned long (*)())irix_thread_id);
	CRYPTO_set_locking_callback((void (*)())irix_locking_callback);
	}

	void CRYPTO_thread_cleanup(void)
	{
	int i;

	CRYPTO_set_locking_callback(NULL);
	for (i=0; i<CRYPTO_num_locks(); i++)
	{
	char buf[10];

	sprintf(buf,"%2d:",i);
	usdumpsema(lock_cs[i],stdout,buf);
	usfreesema(lock_cs[i],arena);
	}
	OPENSSL_free(lock_cs);
	}

	void irix_locking_callback(int mode, int type, char *file, int line)
	{
	if (mode & CRYPTO_LOCK)
	{
	uspsema(lock_cs[type]);
	}
	else
	{
	usvsema(lock_cs[type]);
	}
	}

	unsigned long irix_thread_id(void)
	{
	unsigned long ret;

	ret=(unsigned long)getpid();
	return(ret);
	}
	#endif /* IRIX */

	/* Linux and a few others */
	#ifdef PTHREADS

	static pthread_mutex_t *lock_cs;
	static long *lock_count;

	void CRYPTO_thread_setup(void)
	{
	int i;

	lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(pthread_mutex_t));
	lock_count=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long));
	for (i=0; i<CRYPTO_num_locks(); i++)
	{
	lock_count[i]=0;
	pthread_mutex_init(&(lock_cs[i]),NULL);
	}

	CRYPTO_set_id_callback((unsigned long (*)())pthreads_thread_id);
	CRYPTO_set_locking_callback((void (*)())pthreads_locking_callback);
	}

	void thread_cleanup(void)
	{
	int i;

	CRYPTO_set_locking_callback(NULL);
	for (i=0; i<CRYPTO_num_locks(); i++)
	{
	pthread_mutex_destroy(&(lock_cs[i]));
	}
	OPENSSL_free(lock_cs);
	OPENSSL_free(lock_count);
	}

	void pthreads_locking_callback(int mode, int type, char *file,
	int line)
	{
	#if 0
	fprintf(stderr,"thread=%4d mode=%s lock=%s %s:%d\n",
	CRYPTO_thread_id(),
	(mode&CRYPTO_LOCK)?"l":"u",
	(type&CRYPTO_READ)?"r":"w",file,line);
	#endif
	#if 0
	if (CRYPTO_LOCK_SSL_CERT == type)
	fprintf(stderr,"(t,m,f,l) %ld %d %s %d\n",
	CRYPTO_thread_id(),
	mode,file,line);
	#endif
	if (mode & CRYPTO_LOCK)
	{
	pthread_mutex_lock(&(lock_cs[type]));
	lock_count[type]++;
	}
	else
	{
	pthread_mutex_unlock(&(lock_cs[type]));
	}
	}

	unsigned long pthreads_thread_id(void)
	{
	unsigned long ret;

	ret=(unsigned long)pthread_self();
	return(ret);
	}

	#endif /* PTHREADS */