diff options
Diffstat (limited to 'nuttx/sched/group_find.c')
-rw-r--r-- | nuttx/sched/group_find.c | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/nuttx/sched/group_find.c b/nuttx/sched/group_find.c deleted file mode 100644 index eb3989223..000000000 --- a/nuttx/sched/group_find.c +++ /dev/null @@ -1,125 +0,0 @@ -/***************************************************************************** - * sched/group_find.c - * - * Copyright (C) 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. - * - *****************************************************************************/ - -/***************************************************************************** - * Included Files - *****************************************************************************/ - -#include <nuttx/config.h> - -#include <sched.h> -#include <assert.h> -#include <errno.h> -#include <debug.h> - -#include <nuttx/kmalloc.h> - -#include "group_internal.h" -#include "env_internal.h" - -#ifdef HAVE_TASK_GROUP - -/***************************************************************************** - * Pre-processor Definitions - *****************************************************************************/ - -/***************************************************************************** - * Private Types - *****************************************************************************/ - -/***************************************************************************** - * Private Data - *****************************************************************************/ - -/***************************************************************************** - * Public Data - *****************************************************************************/ - -/***************************************************************************** - * Private Functions - *****************************************************************************/ - -/***************************************************************************** - * Public Functions - *****************************************************************************/ - -/***************************************************************************** - * Name: group_find - * - * Description: - * Given a group ID, find the group task structure with that ID. IDs are - * used instead of pointers to group structures. This is done because a - * group can disappear at any time leaving a stale pointer; an ID is cleaner - * because if the group disappears, this function will fail gracefully. - * - * Parameters: - * gid - The group ID to find. - * - * Return Value: - * On success, a pointer to the group task structure is returned. This - * function can fail only if there is no group that corresponds to the - * groupd ID. - * - * Assumptions: - * Called during when signally tasks in a safe context. No special - * precautions should be required here. However, extra care is taken when - * accessing the global g_grouphead list. - * - *****************************************************************************/ - -#ifdef HAVE_GROUP_MEMBERS -FAR struct task_group_s *group_find(gid_t gid) -{ - FAR struct task_group_s *group; - irqstate_t flags; - - /* Find the status structure with the matching PID */ - - flags = irqsave(); - for (group = g_grouphead; group; group = group->flink) - { - if (group->tg_gid == gid) - { - irqrestore(flags); - return group; - } - } - - irqrestore(flags); - return NULL; -} -#endif - -#endif /* HAVE_TASK_GROUP */ |