26a3a48d65
like Malloc, Realloc and especially Free conflict with already existing names on some operating systems or other packages. That is reason enough to change the names of the OpenSSL memory allocation macros to something that has a better chance of being unique, like prepending them with OPENSSL_. This change includes all the name changes needed throughout all C files.
387 lines
9.4 KiB
C
387 lines
9.4 KiB
C
/* crypto/threads/th-lock.c */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#ifdef LINUX
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#include <typedefs.h>
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#endif
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#ifdef WIN32
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#include <windows.h>
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#endif
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#ifdef SOLARIS
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#include <synch.h>
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#include <thread.h>
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#endif
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#ifdef IRIX
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#include <ulocks.h>
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#include <sys/prctl.h>
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#endif
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#ifdef PTHREADS
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#include <pthread.h>
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#endif
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#include <openssl/lhash.h>
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#include <openssl/crypto.h>
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#include <openssl/buffer.h>
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#include <openssl/e_os.h>
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#include <openssl/x509.h>
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#include <openssl/ssl.h>
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#include <openssl/err.h>
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void CRYPTO_thread_setup(void);
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void CRYPTO_thread_cleanup(void);
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static void irix_locking_callback(int mode,int type,char *file,int line);
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static void solaris_locking_callback(int mode,int type,char *file,int line);
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static void win32_locking_callback(int mode,int type,char *file,int line);
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static void pthreads_locking_callback(int mode,int type,char *file,int line);
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static unsigned long irix_thread_id(void );
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static unsigned long solaris_thread_id(void );
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static unsigned long pthreads_thread_id(void );
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/* usage:
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* CRYPTO_thread_setup();
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* application code
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* CRYPTO_thread_cleanup();
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*/
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#define THREAD_STACK_SIZE (16*1024)
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#ifdef WIN32
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static HANDLE *lock_cs;
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void CRYPTO_thread_setup(void)
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{
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int i;
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lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(HANDLE));
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for (i=0; i<CRYPTO_num_locks(); i++)
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{
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lock_cs[i]=CreateMutex(NULL,FALSE,NULL);
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}
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CRYPTO_set_locking_callback((void (*)(int,int,char *,int))win32_locking_callback);
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/* id callback defined */
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return(1);
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}
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static void CRYPTO_thread_cleanup(void)
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{
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int i;
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CRYPTO_set_locking_callback(NULL);
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for (i=0; i<CRYPTO_num_locks(); i++)
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CloseHandle(lock_cs[i]);
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OPENSSL_free(lock_cs);
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}
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void win32_locking_callback(int mode, int type, char *file, int line)
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{
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if (mode & CRYPTO_LOCK)
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{
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WaitForSingleObject(lock_cs[type],INFINITE);
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}
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else
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{
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ReleaseMutex(lock_cs[type]);
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}
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}
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#endif /* WIN32 */
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#ifdef SOLARIS
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#define USE_MUTEX
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#ifdef USE_MUTEX
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static mutex_t *lock_cs;
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#else
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static rwlock_t *lock_cs;
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#endif
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static long *lock_count;
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void CRYPTO_thread_setup(void)
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{
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int i;
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#ifdef USE_MUTEX
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lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(mutex_t));
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#else
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lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(rwlock_t));
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#endif
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lock_count=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long));
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for (i=0; i<CRYPTO_num_locks(); i++)
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{
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lock_count[i]=0;
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#ifdef USE_MUTEX
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mutex_init(&(lock_cs[i]),USYNC_THREAD,NULL);
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#else
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rwlock_init(&(lock_cs[i]),USYNC_THREAD,NULL);
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#endif
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}
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CRYPTO_set_id_callback((unsigned long (*)())solaris_thread_id);
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CRYPTO_set_locking_callback((void (*)())solaris_locking_callback);
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}
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void CRYPTO_thread_cleanup(void)
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{
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int i;
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CRYPTO_set_locking_callback(NULL);
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for (i=0; i<CRYPTO_num_locks(); i++)
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{
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#ifdef USE_MUTEX
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mutex_destroy(&(lock_cs[i]));
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#else
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rwlock_destroy(&(lock_cs[i]));
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#endif
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}
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OPENSSL_free(lock_cs);
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OPENSSL_free(lock_count);
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}
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void solaris_locking_callback(int mode, int type, char *file, int line)
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{
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#if 0
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fprintf(stderr,"thread=%4d mode=%s lock=%s %s:%d\n",
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CRYPTO_thread_id(),
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(mode&CRYPTO_LOCK)?"l":"u",
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(type&CRYPTO_READ)?"r":"w",file,line);
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#endif
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#if 0
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if (CRYPTO_LOCK_SSL_CERT == type)
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fprintf(stderr,"(t,m,f,l) %ld %d %s %d\n",
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CRYPTO_thread_id(),
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mode,file,line);
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#endif
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if (mode & CRYPTO_LOCK)
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{
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#ifdef USE_MUTEX
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mutex_lock(&(lock_cs[type]));
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#else
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if (mode & CRYPTO_READ)
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rw_rdlock(&(lock_cs[type]));
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else
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rw_wrlock(&(lock_cs[type]));
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#endif
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lock_count[type]++;
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}
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else
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{
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#ifdef USE_MUTEX
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mutex_unlock(&(lock_cs[type]));
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#else
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rw_unlock(&(lock_cs[type]));
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#endif
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}
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}
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unsigned long solaris_thread_id(void)
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{
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unsigned long ret;
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ret=(unsigned long)thr_self();
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return(ret);
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}
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#endif /* SOLARIS */
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#ifdef IRIX
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/* I don't think this works..... */
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static usptr_t *arena;
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static usema_t **lock_cs;
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void CRYPTO_thread_setup(void)
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{
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int i;
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char filename[20];
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strcpy(filename,"/tmp/mttest.XXXXXX");
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mktemp(filename);
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usconfig(CONF_STHREADIOOFF);
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usconfig(CONF_STHREADMALLOCOFF);
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usconfig(CONF_INITUSERS,100);
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usconfig(CONF_LOCKTYPE,US_DEBUGPLUS);
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arena=usinit(filename);
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unlink(filename);
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lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(usema_t *));
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for (i=0; i<CRYPTO_num_locks(); i++)
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{
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lock_cs[i]=usnewsema(arena,1);
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}
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CRYPTO_set_id_callback((unsigned long (*)())irix_thread_id);
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CRYPTO_set_locking_callback((void (*)())irix_locking_callback);
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}
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void CRYPTO_thread_cleanup(void)
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{
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int i;
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CRYPTO_set_locking_callback(NULL);
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for (i=0; i<CRYPTO_num_locks(); i++)
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{
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char buf[10];
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sprintf(buf,"%2d:",i);
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usdumpsema(lock_cs[i],stdout,buf);
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usfreesema(lock_cs[i],arena);
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}
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OPENSSL_free(lock_cs);
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}
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void irix_locking_callback(int mode, int type, char *file, int line)
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{
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if (mode & CRYPTO_LOCK)
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{
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uspsema(lock_cs[type]);
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}
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else
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{
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usvsema(lock_cs[type]);
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}
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}
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unsigned long irix_thread_id(void)
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{
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unsigned long ret;
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ret=(unsigned long)getpid();
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return(ret);
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}
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#endif /* IRIX */
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/* Linux and a few others */
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#ifdef PTHREADS
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static pthread_mutex_t *lock_cs;
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static long *lock_count;
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void CRYPTO_thread_setup(void)
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{
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int i;
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lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(pthread_mutex_t));
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lock_count=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long));
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for (i=0; i<CRYPTO_num_locks(); i++)
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{
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lock_count[i]=0;
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pthread_mutex_init(&(lock_cs[i]),NULL);
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}
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CRYPTO_set_id_callback((unsigned long (*)())pthreads_thread_id);
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CRYPTO_set_locking_callback((void (*)())pthreads_locking_callback);
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}
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void thread_cleanup(void)
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{
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int i;
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CRYPTO_set_locking_callback(NULL);
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for (i=0; i<CRYPTO_num_locks(); i++)
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{
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pthread_mutex_destroy(&(lock_cs[i]));
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}
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OPENSSL_free(lock_cs);
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OPENSSL_free(lock_count);
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}
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void pthreads_locking_callback(int mode, int type, char *file,
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int line)
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{
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#if 0
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fprintf(stderr,"thread=%4d mode=%s lock=%s %s:%d\n",
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CRYPTO_thread_id(),
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(mode&CRYPTO_LOCK)?"l":"u",
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(type&CRYPTO_READ)?"r":"w",file,line);
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#endif
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#if 0
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if (CRYPTO_LOCK_SSL_CERT == type)
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fprintf(stderr,"(t,m,f,l) %ld %d %s %d\n",
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CRYPTO_thread_id(),
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mode,file,line);
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#endif
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if (mode & CRYPTO_LOCK)
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{
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pthread_mutex_lock(&(lock_cs[type]));
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lock_count[type]++;
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}
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else
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{
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pthread_mutex_unlock(&(lock_cs[type]));
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}
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}
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unsigned long pthreads_thread_id(void)
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{
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unsigned long ret;
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ret=(unsigned long)pthread_self();
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return(ret);
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}
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#endif /* PTHREADS */
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