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-rw-r--r--nuttx/sched/pthread_getspecific.c123
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diff --git a/nuttx/sched/pthread_getspecific.c b/nuttx/sched/pthread_getspecific.c
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-/************************************************************************
- * sched/pthread_getspecific.c
- *
- * Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved.
- * Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * 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. Neither the name NuttX nor the names of its contributors may be
- * used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
- * COPYRIGHT OWNER 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.
- *
- ************************************************************************/
-
-/************************************************************************
- * Included Files
- ************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <sched.h>
-#include <errno.h>
-#include <debug.h>
-
-#include "os_internal.h"
-#include "pthread_internal.h"
-
-/************************************************************************
- * Definitions
- ************************************************************************/
-
-/************************************************************************
- * Private Type Declarations
- ************************************************************************/
-
-/************************************************************************
- * Global Variables
- ************************************************************************/
-
-/************************************************************************
- * Private Variables
- ************************************************************************/
-
-/************************************************************************
- * Private Functions
- ************************************************************************/
-
-/************************************************************************
- * Public Functions
- ************************************************************************/
-
-/************************************************************************
- * Name: pthread_getspecific
- *
- * Description:
- * The pthread_getspecific() function returns the value currently
- * bound to the specified key on behalf of the calling thread.
- *
- * The effect of calling pthread_getspecific() with with a key value
- * not obtained from pthread_create() or after a key has been deleted
- * with pthread_key_delete() is undefined.
- *
- * Parameters:
- * key = The data key to get or set
- *
- * Return Value:
- * The function pthread_getspecific() returns the thread-specific data
- * associated with the given key. If no thread specific data is
- * associated with the key, then the value NULL is returned.
- *
- * EINVAL - The key value is invalid.
- *
- * Assumptions:
- *
- * POSIX Compatibility:
- * - Both calling pthread_setspecific() and pthread_getspecific()
- * may be called from a thread-specific data destructor
- * function.
- *
- ************************************************************************/
-
-FAR void *pthread_getspecific(pthread_key_t key)
-{
-#if CONFIG_NPTHREAD_KEYS > 0
- FAR _TCB *rtcb = (FAR _TCB*)g_readytorun.head;
- FAR void *ret = NULL;
-
- /* Check if the key is valid. */
-
- if (key < g_pthread_num_keys)
- {
- /* Return the stored value. */
-
- ret = rtcb->pthread_data[key];
- }
-
- return ret;
-#else
- return NULL;
-#endif
-}
-