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Diffstat (limited to 'crypto/threads/th-lock.c')
| -rw-r--r-- | crypto/threads/th-lock.c | 399 |
1 files changed, 399 insertions, 0 deletions
diff --git a/crypto/threads/th-lock.c b/crypto/threads/th-lock.c new file mode 100644 index 0000000000..039022446d --- /dev/null +++ b/crypto/threads/th-lock.c @@ -0,0 +1,399 @@ +/* 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 WIN32 +#include <windows.h> +#endif +#ifdef SOLARIS +#include <synch.h> +#include <thread.h> +#endif +#ifdef IRIX +#include <ulocks.h> +#include <sys/prctl.h> +#endif +#include "lhash.h" +#include "crypto.h" +#include "buffer.h" +#include "e_os.h" +#include "x509.h" +#include "ssl.h" +#include "err.h" + +#ifndef NOPROTO +int 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 ); + +#else +int CRYPOTO_thread_setup(); +void CRYPTO_cleanup(); + +static void irix_locking_callback(); +static void solaris_locking_callback(); +static void win32_locking_callback(); +static void pthreads_locking_callback(); + +static unsigned long irix_thread_id(); +static unsigned long solaris_thread_id(); +static unsigned long pthreads_thread_id(); + +#endif + +/* usage: + * CRYPTO_thread_setup(); + * applicaion code + * CRYPTO_thread_cleanup(); + */ + +#define THREAD_STACK_SIZE (16*1024) + +#ifdef WIN32 + +static HANDLE lock_cs[CRYPTO_NUM_LOCKS]; + +int CRYPTO_thread_setup() + { + int i; + + 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() + { + int i; + + CRYPTO_set_locking_callback(NULL); + for (i=0; i<CRYPTO_NUM_LOCKS; i++) + CloseHandle(lock_cs[i]); + } + +void win32_locking_callback(mode,type,file,line) +int mode; +int type; +char *file; +int line; + { + if (mode & CRYPTO_LOCK) + { + WaitForSingleObject(lock_cs[type],INFINITE); + } + else + { + ReleaseMutex(lock_cs[type]); + } + } + +#endif /* WIN32 */ + +#ifdef SOLARIS + +#define USE_MUTEX + +static mutex_t lock_cs[CRYPTO_NUM_LOCKS]; +#ifdef USE_MUTEX +static long lock_count[CRYPTO_NUM_LOCKS]; +#else +static rwlock_t lock_cs[CRYPTO_NUM_LOCKS]; +#endif + +void CRYPTO_thread_setup() + { + int i; + + 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() + { + 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 + } + } + +void solaris_locking_callback(mode,type,file,line) +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() + { + 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[CRYPTO_NUM_LOCKS]; + +void CRYPTO_thread_setup() + { + 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); + + 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() + { + 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); + } + } + +void irix_locking_callback(mode,type,file,line) +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() + { + unsigned long ret; + + ret=(unsigned long)getpid(); + return(ret); + } +#endif /* IRIX */ + +/* Linux and a few others */ +#ifdef PTHREADS + +static pthread_mutex_t lock_cs[CRYPTO_NUM_LOCKS]; +static long lock_count[CRYPTO_NUM_LOCKS]; + +void CRYPTO_thread_setup() + { + int i; + + 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() + { + int i; + + CRYPTO_set_locking_callback(NULL); + for (i=0; i<CRYPTO_NUM_LOCKS; i++) + { + pthread_mutex_destroy(&(lock_cs[i])); + } + } + +void pthreads_locking_callback(mode,type,file,line) +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() + { + unsigned long ret; + + ret=(unsigned long)pthread_self(); + return(ret); + } + +#endif /* PTHREADS */ + |