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Diffstat (limited to 'nuttx/sched/sig_allocatependingsigaction.c')
-rw-r--r-- | nuttx/sched/sig_allocatependingsigaction.c | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/nuttx/sched/sig_allocatependingsigaction.c b/nuttx/sched/sig_allocatependingsigaction.c deleted file mode 100644 index 15d6470ca..000000000 --- a/nuttx/sched/sig_allocatependingsigaction.c +++ /dev/null @@ -1,137 +0,0 @@ -/************************************************************************ - * sched/sig_allocatependingsigaction.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 <signal.h> -#include <assert.h> -#include <nuttx/arch.h> - -#include "os_internal.h" -#include "sig_internal.h" - -/************************************************************************ - * Definitions - ************************************************************************/ - -/************************************************************************ - * Private Type Declarations - ************************************************************************/ - -/************************************************************************ - * Global Variables - ************************************************************************/ - -/************************************************************************ - * Private Variables - ************************************************************************/ - -/************************************************************************ - * Private Function Prototypes - ************************************************************************/ - -/************************************************************************ - * Public Functions - ************************************************************************/ - -/************************************************************************ - * Name: sig_allocatependingsigaction - * - * Description: - * Allocate a new element for the pending signal action queue - * - ************************************************************************/ - -FAR sigq_t *sig_allocatependingsigaction(void) -{ - FAR sigq_t *sigq; - irqstate_t saved_state; - - /* Check if we were called from an interrupt handler. */ - - if (up_interrupt_context()) - { - /* Try to get the pending signal action structure from the free list */ - - sigq = (FAR sigq_t*)sq_remfirst(&g_sigpendingaction); - - /* If so, then try the special list of structures reserved for - * interrupt handlers - */ - - if (!sigq) - { - sigq = (FAR sigq_t*)sq_remfirst(&g_sigpendingirqaction); - } - } - - /* If we were not called from an interrupt handler, then we are - * free to allocate pending signal action structures if necessary. */ - - else - { - /* Try to get the pending signal action structure from the free list */ - - saved_state = irqsave(); - sigq = (FAR sigq_t*)sq_remfirst(&g_sigpendingaction); - irqrestore(saved_state); - - /* Check if we got one. */ - - if (!sigq) - { - /* No...Try the resource pool */ - - if (!sigq) - { - sigq = (FAR sigq_t *)kmalloc((sizeof (sigq_t))); - } - - /* Check if we got an allocated message */ - - if (sigq) - { - sigq->type = SIG_ALLOC_DYN; - } - } - } - - return sigq; -} - |