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-rw-r--r--nuttx/sched/pthread_cancel.c148
1 files changed, 0 insertions, 148 deletions
diff --git a/nuttx/sched/pthread_cancel.c b/nuttx/sched/pthread_cancel.c
deleted file mode 100644
index 5e34eeaba..000000000
--- a/nuttx/sched/pthread_cancel.c
+++ /dev/null
@@ -1,148 +0,0 @@
-/**************************************************************************
- * sched/pthread_cancel.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 <sys/types.h>
-#include <unistd.h>
-#include <pthread.h>
-#include <errno.h>
-
-#include "os_internal.h"
-#include "pthread_internal.h"
-
-/**************************************************************************
- * Private Definitions
- **************************************************************************/
-
-/**************************************************************************
- * Private Types
- **************************************************************************/
-
-/**************************************************************************
- * Private Function Prototypes
- **************************************************************************/
-
-/**************************************************************************
- * Global Variables
- **************************************************************************/
-
-/**************************************************************************
- * Private Variables
- **************************************************************************/
-
-/**************************************************************************
- * Private Functions
- **************************************************************************/
-
-/**************************************************************************
- * Public Functions
- **************************************************************************/
-
-int pthread_cancel(pthread_t thread)
-{
- _TCB *tcb;
-
- /* First, make sure that the handle references a valid thread */
-
- if (!thread)
- {
- /* pid == 0 is the IDLE task. Callers cannot cancel the
- * IDLE task.
- */
-
- return ESRCH;
- }
-
- tcb = sched_gettcb((pid_t)thread);
- if (!tcb)
- {
- /* The pid does not correspond to any known thread */
-
- return ESRCH;
- }
-
- /* Check to see if this thread has the non-cancelable bit set in its
- * flags. Suppress context changes for a bit so that the flags are stable.
- * (the flags should not change in interrupt handling.
- */
-
- sched_lock();
- if ((tcb->flags & TCB_FLAG_NONCANCELABLE) != 0)
- {
- /* Then we cannot cancel the thread now. Here is how this is
- * supposed to work:
- *
- * "When cancelability is disabled, all cancels are held pending
- * in the target thread until the thread changes the cancelability.
- * When cancelability is deferred, all cancels are held pending in
- * the target thread until the thread changes the cancelability, calls
- * a function which is a cancellation point or calls pthread_testcancel(),
- * thus creating a cancellation point. When cancelability is asynchronous,
- * all cancels are acted upon immediately, interrupting the thread with its
- * processing."
- */
-
- tcb->flags |= TCB_FLAG_CANCEL_PENDING;
- sched_unlock();
- return OK;
- }
-
- sched_unlock();
-
- /* Check to see if the ID refers to ourselves.. this would be the
- * same as pthread_exit(PTHREAD_CANCELED).
- */
-
- if (tcb == (_TCB*)g_readytorun.head)
- {
- pthread_exit(PTHREAD_CANCELED);
- }
-
- /* Complete pending join operations */
-
- (void)pthread_completejoin((pid_t)thread, PTHREAD_CANCELED);
-
- /* Then let pthread_delete do the real work */
-
- task_delete((pid_t)thread);
- return OK;
-}
-
-