154 lines
5.2 KiB
C
154 lines
5.2 KiB
C
/****************************************************************************
|
|
* sched/group/group.h
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef __SCHED_GROUP_GROUP_H
|
|
#define __SCHED_GROUP_GROUP_H
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <sys/types.h>
|
|
#include <stdbool.h>
|
|
#include <queue.h>
|
|
#include <sched.h>
|
|
|
|
#include <nuttx/kmalloc.h>
|
|
#include <nuttx/sched.h>
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
/* Any negative GRPID is invalid. */
|
|
|
|
#define INVALID_GROUP_ID (pid_t)-1
|
|
#define IS_INVALID_GRPID(grpid) ((int)(grpid) < 0)
|
|
|
|
/****************************************************************************
|
|
* Public Type Definitions
|
|
****************************************************************************/
|
|
|
|
typedef int (*foreachchild_t)(pid_t pid, FAR void *arg);
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
#if defined(HAVE_GROUP_MEMBERS) || defined(CONFIG_ARCH_ADDRENV)
|
|
/* This is the head of a list of all group members */
|
|
|
|
extern FAR struct task_group_s *g_grouphead;
|
|
#endif
|
|
|
|
#ifdef CONFIG_ARCH_ADDRENV
|
|
/* This variable holds the group ID of the current task group. This ID is
|
|
* zero if the current task is a kernel thread that has no address
|
|
* environment (other than the kernel context).
|
|
*
|
|
* This must only be accessed with interrupts disabled.
|
|
*/
|
|
|
|
extern grpid_t g_grpid_current;
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Function Prototypes
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_SCHED_CHILD_STATUS
|
|
void weak_function task_initialize(void);
|
|
#endif
|
|
|
|
/* Task group data structure management */
|
|
|
|
int group_allocate(FAR struct task_tcb_s *tcb, uint8_t ttype);
|
|
int group_initialize(FAR struct task_tcb_s *tcb);
|
|
#ifndef CONFIG_DISABLE_PTHREAD
|
|
int group_bind(FAR struct pthread_tcb_s *tcb);
|
|
int group_join(FAR struct pthread_tcb_s *tcb);
|
|
#endif
|
|
void group_leave(FAR struct tcb_s *tcb);
|
|
#if defined(CONFIG_SCHED_WAITPID) && !defined(CONFIG_SCHED_HAVE_PARENT)
|
|
void group_add_waiter(FAR struct task_group_s *group);
|
|
void group_del_waiter(FAR struct task_group_s *group);
|
|
#endif
|
|
|
|
#if defined(HAVE_GROUP_MEMBERS) || defined(CONFIG_ARCH_ADDRENV)
|
|
FAR struct task_group_s *group_findby_grpid(grpid_t grpid);
|
|
#endif
|
|
|
|
#ifdef HAVE_GROUP_MEMBERS
|
|
FAR struct task_group_s *group_findbypid(pid_t pid);
|
|
int group_foreachchild(FAR struct task_group_s *group,
|
|
foreachchild_t handler, FAR void *arg);
|
|
int group_kill_children(FAR struct tcb_s *tcb);
|
|
#ifdef CONFIG_SIG_SIGSTOP_ACTION
|
|
int group_suspend_children(FAR struct tcb_s *tcb);
|
|
int group_continue(FAR struct tcb_s *tcb);
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef CONFIG_ARCH_ADDRENV
|
|
/* Group address environment management */
|
|
|
|
int group_addrenv(FAR struct tcb_s *tcb);
|
|
#endif
|
|
|
|
/* Convenience functions */
|
|
|
|
FAR struct task_group_s *task_getgroup(pid_t pid);
|
|
|
|
/* Signaling group members */
|
|
|
|
int group_signal(FAR struct task_group_s *group, FAR siginfo_t *siginfo);
|
|
|
|
/* 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_alloc_child(void);
|
|
void group_free_child(FAR struct child_status_s *status);
|
|
void group_add_child(FAR struct task_group_s *group,
|
|
FAR struct child_status_s *child);
|
|
FAR struct child_status_s *group_exit_child(FAR struct task_group_s *group);
|
|
FAR struct child_status_s *group_find_child(FAR struct task_group_s *group,
|
|
pid_t pid);
|
|
FAR struct child_status_s *group_remove_child(FAR struct task_group_s *group,
|
|
pid_t pid);
|
|
void group_remove_children(FAR struct task_group_s *group);
|
|
|
|
#endif /* CONFIG_SCHED_CHILD_STATUS */
|
|
#endif /* CONFIG_SCHED_HAVE_PARENT */
|
|
|
|
/* Group data resource configuration */
|
|
|
|
int group_setupidlefiles(FAR struct task_tcb_s *tcb);
|
|
int group_setuptaskfiles(FAR struct task_tcb_s *tcb);
|
|
#ifdef CONFIG_FILE_STREAM
|
|
int group_setupstreams(FAR struct task_tcb_s *tcb);
|
|
#endif
|
|
|
|
#endif /* __SCHED_GROUP_GROUP_H */
|