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126 lines
4.8 KiB
126 lines
4.8 KiB
/**************************************************************************** |
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* sched/group_internal.h |
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* |
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* Copyright (C) 2007-2013 Gregory Nutt. All rights reserved. |
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* Author: Gregory Nutt <gnutt@nuttx.org> |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* 3. Neither the name NuttX nor the names of its contributors may be |
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* used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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* |
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****************************************************************************/ |
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#ifndef __SCHED_GROUP_INERNAL_H |
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#define __SCHED_GROUP_INERNAL_H |
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/**************************************************************************** |
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* Included Files |
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****************************************************************************/ |
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#include <nuttx/config.h> |
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#include <sys/types.h> |
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#include <stdbool.h> |
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#include <queue.h> |
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#include <sched.h> |
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#include <nuttx/kmalloc.h> |
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/**************************************************************************** |
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* Pre-processor Definitions |
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****************************************************************************/ |
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/* Any negative GID is invalid. */ |
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#define INVALID_GROUP_ID (pid_t)-1 |
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#define IS_INVALID_GID(gid) ((int)(gid) < 0) |
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/**************************************************************************** |
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* Public Type Definitions |
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****************************************************************************/ |
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/**************************************************************************** |
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* Public Data |
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****************************************************************************/ |
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/* This is the head of a list of all group members */ |
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#ifdef HAVE_GROUP_MEMBERS |
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extern FAR struct task_group_s *g_grouphead; |
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#endif |
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/**************************************************************************** |
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* Public Function Prototypes |
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****************************************************************************/ |
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/* Task group data structure management */ |
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#ifdef HAVE_TASK_GROUP |
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int group_allocate(FAR _TCB *tcb); |
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int group_initialize(FAR _TCB *tcb); |
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int group_bind(FAR _TCB *tcb); |
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int group_join(FAR _TCB *tcb); |
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void group_leave(FAR _TCB *tcb); |
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#ifdef HAVE_GROUP_MEMBERS |
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FAR struct task_group_s *group_find(gid_t gid); |
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int group_addmember(FAR struct task_group_s *group, pid_t pid); |
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int group_removemember(FAR struct task_group_s *group, pid_t pid); |
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#endif |
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#ifndef CONFIG_DISABLE_SIGNALS |
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int group_signal(FAR struct task_group_s *group, FAR siginfo_t *info); |
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#endif |
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#endif /* HAVE_TASK_GROUP */ |
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/* Parent/child data management */ |
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#ifdef CONFIG_SCHED_HAVE_PARENT |
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int task_reparent(pid_t ppid, pid_t chpid); |
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#ifdef CONFIG_SCHED_CHILD_STATUS |
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FAR struct child_status_s *group_allocchild(void); |
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void group_freechild(FAR struct child_status_s *status); |
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void group_addchild(FAR struct task_group_s *group, |
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FAR struct child_status_s *child); |
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FAR struct child_status_s *group_exitchild(FAR struct task_group_s *group); |
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FAR struct child_status_s *group_findchild(FAR struct task_group_s *group, |
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pid_t pid); |
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FAR struct child_status_s *group_removechild(FAR struct task_group_s *group, |
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pid_t pid); |
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void group_removechildren(FAR struct task_group_s *group); |
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#endif /* CONFIG_SCHED_CHILD_STATUS */ |
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#endif /* CONFIG_SCHED_HAVE_PARENT */ |
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/* Group data resource configuration */ |
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#if CONFIG_NFILE_DESCRIPTORS > 0 || CONFIG_NSOCKET_DESCRIPTORS > 0 |
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int group_setupidlefiles(FAR _TCB *tcb); |
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int group_setuptaskfiles(FAR _TCB *tcb); |
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#if CONFIG_NFILE_STREAMS > 0 |
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int group_setupstreams(FAR _TCB *tcb); |
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#endif |
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#endif |
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#endif /* __SCHED_GROUP_INERNAL_H */
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