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authorpatacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>2013-01-25 23:21:27 +0000
committerpatacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>2013-01-25 23:21:27 +0000
commitf372377c724eb5b626107c58223888a08197d4af (patch)
treefd3a16f87e715df6729c7966a230f93214e98e20 /nuttx/sched/env_share.c
parenta8b43ddae28ff445f9b240d5b271058d80384703 (diff)
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Move environment variables in the task group structure
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5565 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/sched/env_share.c')
-rw-r--r--nuttx/sched/env_share.c117
1 files changed, 0 insertions, 117 deletions
diff --git a/nuttx/sched/env_share.c b/nuttx/sched/env_share.c
deleted file mode 100644
index 5f37a0219..000000000
--- a/nuttx/sched/env_share.c
+++ /dev/null
@@ -1,117 +0,0 @@
-/****************************************************************************
- * sched/env_share.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>
-
-#ifndef CONFIG_DISABLE_ENVIRON
-
-#include <sched.h>
-#include <errno.h>
-
-#include "os_internal.h"
-#include "env_internal.h"
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: env_share
- *
- * Description:
- * Increment the reference count on the internal environment structure of
- * a task. This is the action that is performed when a new pthread is
- * created: The new pthread shares the environment with its parent.
- *
- * Parameters:
- * ptcb The new TCB to receive the shared environment.
- *
- * Return Value:
- * A pointer to a specified TCB's environment structure with an incremented
- * reference count.
- *
- * Assumptions:
- * Not called from an interrupt handler.
- *
- ****************************************************************************/
-
-int env_share(FAR _TCB *ptcb)
-{
- int ret = OK;
- if (!ptcb)
- {
- ret = -EINVAL;
- }
- else
- {
- FAR _TCB *parent = (FAR _TCB*)g_readytorun.head;
- environ_t *envp = parent->envp;
-
- /* Pre-emption must be disabled throughout the following because the
- * environment is shared.
- */
-
- sched_lock();
-
- /* Does the parent task have an environment? */
-
- if (envp)
- {
- /* Yes.. increment the reference count on the environment */
-
- envp->ev_crefs++;
- }
-
- /* Then share the environment */
-
- ptcb->envp = envp;
- sched_unlock();
- }
-
- return ret;
-}
-
-#endif /* CONFIG_DISABLE_ENVIRON */
-
-
-