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Diffstat (limited to 'nuttx/sched/sched_free.c')
-rw-r--r-- | nuttx/sched/sched_free.c | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/nuttx/sched/sched_free.c b/nuttx/sched/sched_free.c deleted file mode 100644 index e5e0bdacf..000000000 --- a/nuttx/sched/sched_free.c +++ /dev/null @@ -1,114 +0,0 @@ -/************************************************************************ - * sched/sched_free.c - * - * Copyright (C) 2007, 2009, 2012 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 <queue.h> -#include <assert.h> - -#include <nuttx/kmalloc.h> -#include <nuttx/arch.h> -#include <nuttx/wqueue.h> -#include "os_internal.h" - -/************************************************************************ - * Definitions - ************************************************************************/ - -/************************************************************************ - * Private Type Declarations - ************************************************************************/ - -/************************************************************************ - * Global Variables - ************************************************************************/ - -/************************************************************************ - * Private Variables - ************************************************************************/ - -/************************************************************************ - * Private Function Prototypes - ************************************************************************/ - -/************************************************************************ - * Public Functions - ************************************************************************/ - -/************************************************************************ - * Name: sched_free - * - * Description: - * This function performs deallocations that the operating system may - * need to make. This special interface to free is used to handling - * corner cases where the operating system may have to perform - * deallocations from within an interrupt handler. - * - ************************************************************************/ - -void sched_free(FAR void *address) -{ - /* Check if this is an attempt to deallocate memory from an exception - * handler. If this function is called from the IDLE task, then we - * must have exclusive access to the memory manager to do this. - */ - - if (up_interrupt_context() || kmm_trysemaphore() != 0) - { - /* Yes.. Delay the deallocation until a more appropriate time. */ - - irqstate_t saved_state = irqsave(); - sq_addlast((FAR sq_entry_t*)address, (sq_queue_t*)&g_delayeddeallocations); - - /* Signal the worker thread that is has some clean up to do */ - -#ifdef CONFIG_SCHED_WORKQUEUE - work_signal(LPWORK); -#endif - irqrestore(saved_state); - } - else - { - /* No.. just deallocate the memory now. */ - - kfree(address); - kmm_givesemaphore(); - } -} - |