/* 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 #include #include #include #ifdef LINUX # include #endif #ifdef OPENSSL_SYS_WIN32 # include #endif #ifdef SOLARIS # include # include #endif #ifdef IRIX # include # include #endif #ifdef PTHREADS # include #endif #include #include #include #include "../../e_os.h" #include #include #include 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 */