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Diffstat (limited to 'nuttx/sched/group_internal.h')
-rw-r--r-- | nuttx/sched/group_internal.h | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/nuttx/sched/group_internal.h b/nuttx/sched/group_internal.h new file mode 100644 index 000000000..ca6aacff7 --- /dev/null +++ b/nuttx/sched/group_internal.h @@ -0,0 +1,126 @@ +/**************************************************************************** + * sched/group_internal.h + * + * Copyright (C) 2007-2013 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. + * + ****************************************************************************/ + +#ifndef __SCHED_GROUP_INERNAL_H +#define __SCHED_GROUP_INERNAL_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <sys/types.h> +#include <stdbool.h> +#include <queue.h> +#include <sched.h> + +#include <nuttx/kmalloc.h> + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ +/* Any negative GID is invalid. */ + +#define INVALID_GROUP_ID (pid_t)-1 +#define IS_INVALID_GID(gid) ((int)(gid) < 0) + +/**************************************************************************** + * Public Type Definitions + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ +/* This is the head of a list of all group members */ + +#ifdef HAVE_GROUP_MEMBERS +extern FAR struct task_group_s *g_grouphead; +#endif + +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ +/* Task group data structure management */ + +#ifdef HAVE_TASK_GROUP +int group_allocate(FAR _TCB *tcb); +int group_initialize(FAR _TCB *tcb); +int group_bind(FAR _TCB *tcb); +int group_join(FAR _TCB *tcb); +void group_leave(FAR _TCB *tcb); + +#ifdef HAVE_GROUP_MEMBERS +FAR struct task_group_s *group_find(gid_t gid); +int group_addmember(FAR struct task_group_s *group, pid_t pid); +int group_removemember(FAR struct task_group_s *group, pid_t pid); +#endif + +#ifndef CONFIG_DISABLE_SIGNALS +int group_signal(FAR struct task_group_s *group, FAR siginfo_t *info); +#endif +#endif /* HAVE_TASK_GROUP */ + +/* Parent/child data management */ + +#ifdef CONFIG_SCHED_HAVE_PARENT +int task_reparent(pid_t ppid, pid_t chpid); + +#ifdef CONFIG_SCHED_CHILD_STATUS +FAR struct child_status_s *group_allocchild(void); +void group_freechild(FAR struct child_status_s *status); +void group_addchild(FAR struct task_group_s *group, + FAR struct child_status_s *child); +FAR struct child_status_s *group_exitchild(FAR struct task_group_s *group); +FAR struct child_status_s *group_findchild(FAR struct task_group_s *group, + pid_t pid); +FAR struct child_status_s *group_removechild(FAR struct task_group_s *group, + pid_t pid); +void group_removechildren(FAR struct task_group_s *group); + +#endif /* CONFIG_SCHED_CHILD_STATUS */ +#endif /* CONFIG_SCHED_HAVE_PARENT */ + +/* Group data resource configuration */ + +#if CONFIG_NFILE_DESCRIPTORS > 0 || CONFIG_NSOCKET_DESCRIPTORS > 0 +int group_setupidlefiles(FAR _TCB *tcb); +int group_setuptaskfiles(FAR _TCB *tcb); +#if CONFIG_NFILE_STREAMS > 0 +int group_setupstreams(FAR _TCB *tcb); +#endif +#endif + +#endif /* __SCHED_GROUP_INERNAL_H */ |