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Fix an error when a task with open message queue descriptors is killed via task_delete(). Noted by Anton Gropyanov.

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This commit is contained in:
Gregory Nutt
2016-04-11 11:14:18 -06:00
parent 2e49111a17
commit 3fba968bb0
9 changed files with 112 additions and 124 deletions
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include/nuttx/mqueue.h
+31 -7
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@@ -1,7 +1,7 @@
/****************************************************************************
* include/nuttx/mqueue.h
*
* Copyright (C) 2007, 2009, 2011, 2014-2015 Gregory Nutt. All rights reserved.
* Copyright (C) 2007, 2009, 2011, 2014-2016 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
@@ -111,6 +111,10 @@ extern "C"
#define EXTERN extern
#endif
struct mq_attr; /* Forward reference */
struct tcb_s; /* Forward reference */
struct task_group_s; /* Forward reference */
/****************************************************************************
* Name: mq_msgqfree
*
@@ -150,7 +154,6 @@ void mq_msgqfree(FAR struct mqueue_inode_s *msgq);
*
****************************************************************************/
struct mq_attr;
FAR struct mqueue_inode_s *mq_msgqalloc(mode_t mode,
FAR struct mq_attr *attr);
@@ -171,12 +174,32 @@ FAR struct mqueue_inode_s *mq_msgqalloc(mode_t mode,
*
****************************************************************************/
struct tcb_s;
mqd_t mq_descreate(FAR struct tcb_s* mtcb, FAR struct mqueue_inode_s* msgq,
mqd_t mq_descreate(FAR struct tcb_s *mtcb, FAR struct mqueue_inode_s *msgq,
int oflags);
/****************************************************************************
* Name: mq_desclose
* Name: mq_close_group
*
* Description:
* This function is used to indicate that all threads in the group are
* finished with the specified message queue mqdes. The mq_close_group()
* deallocates any system resources allocated by the system for use by
* this task for its message queue.
*
* Parameters:
* mqdes - Message queue descriptor.
* group - Group that has the open descriptor.
*
* Return Value:
* 0 (OK) if the message queue is closed successfully,
* otherwise, -1 (ERROR).
*
****************************************************************************/
int mq_close_group(mqd_t mqdes, FAR struct task_group_s *group);
/****************************************************************************
* Name: mq_desclose_group
*
* Description:
* This function performs the portion of the mq_close operation related
@@ -184,16 +207,17 @@ mqd_t mq_descreate(FAR struct tcb_s* mtcb, FAR struct mqueue_inode_s* msgq,
*
* Parameters:
* mqdes - Message queue descriptor.
* group - Group that has the open descriptor.
*
* Return Value:
* None
* None.
*
* Assumptions:
* - Called only from mq_close() with the scheduler locked.
*
****************************************************************************/
void mq_desclose(mqd_t mqdes);
void mq_desclose_group(mqd_t mqdes, FAR struct task_group_s *group);
#undef EXTERN
#ifdef __cplusplus