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Diffstat (limited to 'lib/libkse/thread/thr_spec.c')
| -rw-r--r-- | lib/libkse/thread/thr_spec.c | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/lib/libkse/thread/thr_spec.c b/lib/libkse/thread/thr_spec.c deleted file mode 100644 index 8558dff85980..000000000000 --- a/lib/libkse/thread/thr_spec.c +++ /dev/null @@ -1,199 +0,0 @@ -/* - * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * 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 above 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 software developed by John Birrell. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``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 REGENTS 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. - * - */ -#include <signal.h> -#include <stdlib.h> -#include <string.h> -#include <errno.h> -#ifdef _THREAD_SAFE -#include <pthread.h> -#include "pthread_private.h" - -/* Static variables: */ -static struct pthread_key key_table[PTHREAD_KEYS_MAX]; - -int -pthread_key_create(pthread_key_t * key, void (*destructor) (void *)) -{ - for ((*key) = 0; (*key) < PTHREAD_KEYS_MAX; (*key)++) { - /* Lock the key table entry: */ - _SPINLOCK(&key_table[*key].lock); - - if (key_table[(*key)].allocated == 0) { - key_table[(*key)].allocated = 1; - key_table[(*key)].destructor = destructor; - - /* Unlock the key table entry: */ - _SPINUNLOCK(&key_table[*key].lock); - return (0); - } - - /* Unlock the key table entry: */ - _SPINUNLOCK(&key_table[*key].lock); - } - return (EAGAIN); -} - -int -pthread_key_delete(pthread_key_t key) -{ - int ret = 0; - - if (key < PTHREAD_KEYS_MAX) { - /* Lock the key table entry: */ - _SPINLOCK(&key_table[key].lock); - - if (key_table[key].allocated) - key_table[key].allocated = 0; - else - ret = EINVAL; - - /* Unlock the key table entry: */ - _SPINUNLOCK(&key_table[key].lock); - } else - ret = EINVAL; - return (ret); -} - -void -_thread_cleanupspecific(void) -{ - void *data; - int key; - int itr; - void (*destructor)( void *); - - for (itr = 0; itr < PTHREAD_DESTRUCTOR_ITERATIONS; itr++) { - for (key = 0; key < PTHREAD_KEYS_MAX; key++) { - if (_thread_run->specific_data_count) { - /* Lock the key table entry: */ - _SPINLOCK(&key_table[key].lock); - destructor = NULL; - - if (key_table[key].allocated) { - if (_thread_run->specific_data[key]) { - data = (void *) _thread_run->specific_data[key]; - _thread_run->specific_data[key] = NULL; - _thread_run->specific_data_count--; - destructor = key_table[key].destructor; - } - } - - /* Unlock the key table entry: */ - _SPINUNLOCK(&key_table[key].lock); - - /* - * If there is a destructore, call it - * with the key table entry unlocked: - */ - if (destructor) - destructor(data); - } else { - free(_thread_run->specific_data); - _thread_run->specific_data = NULL; - return; - } - } - } - _thread_run->specific_data = NULL; - free(_thread_run->specific_data); -} - -static inline const void ** -pthread_key_allocate_data(void) -{ - const void **new_data; - if ((new_data = (const void **) malloc(sizeof(void *) * PTHREAD_KEYS_MAX)) != NULL) { - memset((void *) new_data, 0, sizeof(void *) * PTHREAD_KEYS_MAX); - } - return (new_data); -} - -int -pthread_setspecific(pthread_key_t key, const void *value) -{ - pthread_t pthread; - int ret = 0; - - /* Point to the running thread: */ - pthread = _thread_run; - - if ((pthread->specific_data) || - (pthread->specific_data = pthread_key_allocate_data())) { - if (key < PTHREAD_KEYS_MAX) { - if (key_table[key].allocated) { - if (pthread->specific_data[key] == NULL) { - if (value != NULL) - pthread->specific_data_count++; - } else { - if (value == NULL) - pthread->specific_data_count--; - } - pthread->specific_data[key] = value; - ret = 0; - } else - ret = EINVAL; - } else - ret = EINVAL; - } else - ret = ENOMEM; - return (ret); -} - -void * -pthread_getspecific(pthread_key_t key) -{ - pthread_t pthread; - void *data; - - /* Point to the running thread: */ - pthread = _thread_run; - - /* Check if there is specific data: */ - if (pthread->specific_data != NULL && key < PTHREAD_KEYS_MAX) { - /* Check if this key has been used before: */ - if (key_table[key].allocated) { - /* Return the value: */ - data = (void *) pthread->specific_data[key]; - } else { - /* - * This key has not been used before, so return NULL - * instead: - */ - data = NULL; - } - } else - /* No specific data has been created, so just return NULL: */ - data = NULL; - return (data); -} -#endif |