diff options
Diffstat (limited to 'nuttx/sched/sig_initialize.c')
-rw-r--r-- | nuttx/sched/sig_initialize.c | 271 |
1 files changed, 0 insertions, 271 deletions
diff --git a/nuttx/sched/sig_initialize.c b/nuttx/sched/sig_initialize.c deleted file mode 100644 index 966d818a1..000000000 --- a/nuttx/sched/sig_initialize.c +++ /dev/null @@ -1,271 +0,0 @@ -/************************************************************************ - * sched/sig_initialize.c - * - * Copyright (C) 2007, 2009, 2011 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 <stdint.h> -#include <queue.h> -#include <nuttx/kmalloc.h> - -#include "os_internal.h" -#include "sig_internal.h" - -/************************************************************************ - * Definitions - ************************************************************************/ - -/************************************************************************ - * Private Type Declarations - ************************************************************************/ - -/************************************************************************ - * Global Variables - ************************************************************************/ - -/* The g_sigfreeaction data structure is a list of available signal - * action structures. - */ - -sq_queue_t g_sigfreeaction; - -/* The g_sigpendingaction data structure is a list of available pending - * signal action structures. - */ - -sq_queue_t g_sigpendingaction; - -/* The g_sigpendingirqaction is a list of available pending signal actions - * that are reserved for use by interrupt handlers. - */ - -sq_queue_t g_sigpendingirqaction; - -/* The g_sigpendingsignal data structure is a list of available pending - * signal structures. - */ - -sq_queue_t g_sigpendingsignal; - -/* The g_sigpendingirqsignal data structure is a list of available - * pending signal structures that are reserved for use by interrupt - * handlers. - */ - -sq_queue_t g_sigpendingirqsignal; - -/************************************************************************ - * Private Variables - ************************************************************************/ - -/* g_sigactionalloc is a pointer to the start of the allocated blocks of - * signal actions. - */ - -static sigactq_t *g_sigactionalloc; - -/* g_sigpendingactionalloc is a pointer to the start of the allocated - * blocks of pending signal actions. - */ - -static sigq_t *g_sigpendingactionalloc; - -/* g_sigpendingirqactionalloc is a pointer to the start of the allocated - * block of pending signal actions. - */ - -static sigq_t *g_sigpendingirqactionalloc; - -/* g_sigpendingsignalalloc is a pointer to the start of the allocated - * blocks of pending signals. - */ - -static sigpendq_t *g_sigpendingsignalalloc; - -/* g_sigpendingirqsignalalloc is a pointer to the start of the allocated - * blocks of pending signals. - */ - -static sigpendq_t *g_sigpendingirqsignalalloc; - -/************************************************************************ - * Private Function Prototypes - ************************************************************************/ - -static sigq_t *sig_allocateblock(sq_queue_t *siglist, uint16_t nsigs, - uint8_t sigtype); -static sigpendq_t *sig_allocatependingsignalblock(sq_queue_t *siglist, - uint16_t nsigs, uint8_t sigtype); - -/************************************************************************ - * Private Functions - ************************************************************************/ - -/************************************************************************ - * Name: sig_allocateblock - * - * Description: - * Allocate a block of pending signal actions and place them - * on the free list. - * - ************************************************************************/ - -static sigq_t *sig_allocateblock(sq_queue_t *siglist, uint16_t nsigs, - uint8_t sigtype) -{ - sigq_t *sigqalloc; - sigq_t *sigq; - int i; - - /* Allocate a block of pending signal actions */ - - sigqalloc = (sigq_t*)kmalloc((sizeof(sigq_t)) * nsigs); - - sigq = sigqalloc; - for (i = 0; i < nsigs; i++) - { - sigq->type = sigtype; - sq_addlast((FAR sq_entry_t*)sigq++, siglist); - } - - return sigqalloc; -} - -/************************************************************************ - * Name: sig_allocatependingsignalblock - * - * Description: - * Allocate a block of pending signal structures and place them on - * the free list. - * - ************************************************************************/ - -static sigpendq_t *sig_allocatependingsignalblock(sq_queue_t *siglist, - uint16_t nsigs, uint8_t sigtype) -{ - sigpendq_t *sigpendalloc; - sigpendq_t *sigpend; - int i; - - /* Allocate a block of pending signal structures */ - - sigpendalloc = - (sigpendq_t*)kmalloc((sizeof(sigpendq_t)) * nsigs); - - sigpend = sigpendalloc; - for (i = 0; i < nsigs; i++) - { - sigpend->type = sigtype; - sq_addlast((FAR sq_entry_t*)sigpend++, siglist); - } - - return sigpendalloc; -} - -/************************************************************************ - * Public Functions - ************************************************************************/ - -/************************************************************************ - * Name: sig_initialize - * - * Description: - * Perform one-time power-up initialization - * - ************************************************************************/ - -void sig_initialize(void) -{ - /* Initialize free lists */ - - sq_init(&g_sigfreeaction); - sq_init(&g_sigpendingaction); - sq_init(&g_sigpendingirqaction); - sq_init(&g_sigpendingsignal); - sq_init(&g_sigpendingirqsignal); - - /* Add a block of signal structures to each list */ - - g_sigpendingactionalloc = - sig_allocateblock(&g_sigpendingaction, - NUM_PENDING_ACTIONS, - SIG_ALLOC_FIXED); - - g_sigpendingirqactionalloc = - sig_allocateblock(&g_sigpendingirqaction, - NUM_PENDING_INT_ACTIONS, - SIG_ALLOC_IRQ); - - sig_allocateactionblock(); - - g_sigpendingsignalalloc = - sig_allocatependingsignalblock(&g_sigpendingsignal, - NUM_SIGNALS_PENDING, - SIG_ALLOC_FIXED); - - g_sigpendingirqsignalalloc = - sig_allocatependingsignalblock(&g_sigpendingirqsignal, - NUM_INT_SIGNALS_PENDING, - SIG_ALLOC_IRQ); -} - -/************************************************************************ - * Name: sig_allocateactionblock - * - * Description: - * Allocate a block of signal actions and place them - * on the free list. - * - ************************************************************************/ - -void sig_allocateactionblock(void) -{ - sigactq_t *sigact; - int i; - - /* Allocate a block of signal actions */ - - g_sigactionalloc = - (sigactq_t*)kmalloc((sizeof(sigactq_t)) * NUM_SIGNAL_ACTIONS); - - sigact = g_sigactionalloc; - for (i = 0; i < NUM_SIGNAL_ACTIONS; i++) - { - sq_addlast((FAR sq_entry_t*)sigact++, &g_sigfreeaction); - } -} |