Move list of open message queues to task group. Now message queues opened by members of the group will be closed when the last member of the group exits.
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5609 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
parent
ce722fd1e3
commit
5475d02446
@ -4116,4 +4116,9 @@
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Move waitpid data data structures to task group. Callers of
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of waitpid() are now only awakened whent he final thread of the
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task group exits.
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* sched/mq_descreate.c, mq_open.c, mq_remove.c, group_leave.c, and
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include/nuttx/sched.h: Move list of opened message queues to
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the task group structures. Now all message queues opened by
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members of the group are closed when the last member of the group
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exits.
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@ -77,7 +77,7 @@
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*/
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#else
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# if !defined(CONFIG_DISABLE_ENVIRON) /* Environment variales */
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# if !defined(CONFIG_DISABLE_ENVIRON) /* Environment variables */
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# define HAVE_TASK_GROUP 1
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# elif defined(CONFIG_SCHED_ATEXIT) /* Group atexit() function */
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# define HAVE_TASK_GROUP 1
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@ -91,6 +91,8 @@
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# define HAVE_TASK_GROUP 1
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# elif CONFIG_NSOCKET_DESCRIPTORS > 0 /* Sockets */
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# define HAVE_TASK_GROUP 1
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# elif !defined(CONFIG_DISABLE_MQUEUE) /* Message queues */
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# define HAVE_TASK_GROUP 1
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# endif
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#endif
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@ -375,6 +377,11 @@ struct task_group_s
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#if CONFIG_NSOCKET_DESCRIPTORS > 0
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struct socketlist tg_socketlist; /* Maps socket descriptor to socket */
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#endif
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/* POSIX Named Message Queue Fields *******************************************/
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#ifndef CONFIG_DISABLE_MQUEUE
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sq_queue_t tg_msgdesq; /* List of opened message queues */
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#endif
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};
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#endif
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@ -488,7 +495,6 @@ struct _TCB
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/* POSIX Named Message Queue Fields *******************************************/
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#ifndef CONFIG_DISABLE_MQUEUE
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sq_queue_t msgdesq; /* List of opened message queues */
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FAR msgq_t *msgwaitq; /* Waiting for this message queue */
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#endif
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@ -504,7 +510,6 @@ struct _TCB
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#if CONFIG_TASK_NAME_SIZE > 0
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char name[CONFIG_TASK_NAME_SIZE]; /* Task name */
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#endif
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};
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/* Certain other header files may also define this time to avoid circular header
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@ -122,11 +122,13 @@ SIGNAL_SRCS += sig_kill.c sig_queue.c sig_waitinfo.c sig_timedwait.c
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SIGNAL_SRCS += sig_findaction.c sig_allocatependingsigaction.c
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SIGNAL_SRCS += sig_releasependingsigaction.c sig_unmaskpendingsignal.c
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SIGNAL_SRCS += sig_removependingsignal.c sig_releasependingsignal.c sig_lowest.c
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SIGNAL_SRCS += sig_mqnotempty.c sig_cleanup.c sig_received.c sig_deliver.c pause.c
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SIGNAL_SRCS += sig_mqnotempty.c sig_cleanup.c sig_received.c sig_deliver.c
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SIGNAL_SRCS += pause.c
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MQUEUE_SRCS = mq_open.c mq_close.c mq_unlink.c mq_send.c mq_timedsend.c
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MQUEUE_SRCS += mq_sndinternal.c mq_receive.c mq_timedreceive.c mq_rcvinternal.c
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MQUEUE_SRCS += mq_initialize.c mq_descreate.c mq_findnamed.c mq_msgfree.c mq_msgqfree.c
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MQUEUE_SRCS += mq_initialize.c mq_descreate.c mq_findnamed.c mq_msgfree.c
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MQUEUE_SRCS += mq_msgqfree.c mq_release.c
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ifneq ($(CONFIG_DISABLE_SIGNALS),y)
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MQUEUE_SRCS += mq_waitirq.c
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@ -50,6 +50,7 @@
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#include "env_internal.h"
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#include "pthread_internal.h"
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#include "mq_internal.h"
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#include "group_internal.h"
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#ifdef HAVE_TASK_GROUP
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@ -190,6 +191,12 @@ static inline void group_release(FAR struct task_group_s *group)
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env_release(group);
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#endif
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/* Close message queues opened by members of the group */
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#ifndef CONFIG_DISABLE_MQUEUE
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mq_release(group);
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#endif
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#ifdef HAVE_GROUP_MEMBERS
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/* Remove the group from the list of groups */
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@ -1,7 +1,7 @@
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/****************************************************************************
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* sched/mq_close.c
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*
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* Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved.
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* Copyright (C) 2007, 2009, 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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@ -41,6 +41,7 @@
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#include <mqueue.h>
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#include <sched.h>
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#include <assert.h>
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#include "os_internal.h"
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#include "mq_internal.h"
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@ -113,10 +114,13 @@
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int mq_close(mqd_t mqdes)
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{
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FAR _TCB *rtcb = (FAR _TCB*)g_readytorun.head;
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FAR struct task_group_s *group = rtcb->group;
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FAR msgq_t *msgq;
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irqstate_t saved_state;
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int ret = ERROR;
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DEBUGASSERT(group);
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/* Verify the inputs */
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if (mqdes)
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@ -127,7 +131,7 @@ int mq_close(mqd_t mqdes)
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* list of message descriptors.
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*/
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sq_rem((FAR sq_entry_t*)mqdes, &rtcb->msgdesq);
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sq_rem((FAR sq_entry_t*)mqdes, &group->tg_msgdesq);
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/* Find the message queue associated with the message descriptor */
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@ -1,7 +1,7 @@
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/****************************************************************************
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* sched/mq_descreate.c
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*
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* Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
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* Copyright (C) 2007-2009, 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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@ -137,8 +137,11 @@ static mqd_t mq_desalloc(void)
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mqd_t mq_descreate(FAR _TCB* mtcb, FAR msgq_t* msgq, int oflags)
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{
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FAR struct task_group_s *group = mtcb->group;
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mqd_t mqdes;
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DEBUGASSERT(group);
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/* Create a message queue descriptor for the TCB */
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mqdes = mq_desalloc();
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@ -152,7 +155,7 @@ mqd_t mq_descreate(FAR _TCB* mtcb, FAR msgq_t* msgq, int oflags)
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/* And add it to the specified tasks's TCB */
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sq_addlast((FAR sq_entry_t*)mqdes, &mtcb->msgdesq);
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sq_addlast((FAR sq_entry_t*)mqdes, &group->tg_msgdesq);
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}
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return mqdes;
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@ -1,7 +1,7 @@
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/****************************************************************************
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* sched/mq_internal.h
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*
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* Copyright (C) 2007, 2009, 2011 Gregory Nutt. All rights reserved.
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* Copyright (C) 2007, 2009, 2011, 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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@ -109,70 +109,74 @@ typedef struct mqmsg mqmsg_t;
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* Global Variables
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/* This is a list of all opened message queues */
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extern sq_queue_t g_msgqueues;
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EXTERN sq_queue_t g_msgqueues;
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/* The g_msgfree is a list of messages that are available for general use.
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* The number of messages in this list is a system configuration item.
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*/
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extern sq_queue_t g_msgfree;
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EXTERN sq_queue_t g_msgfree;
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/* The g_msgfreeInt is a list of messages that are reserved for use by
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* interrupt handlers.
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*/
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extern sq_queue_t g_msgfreeirq;
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EXTERN sq_queue_t g_msgfreeirq;
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/* The g_desfree data structure is a list of message descriptors available
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* to the operating system for general use. The number of messages in the
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* pool is a constant.
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*/
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extern sq_queue_t g_desfree;
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EXTERN sq_queue_t g_desfree;
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/****************************************************************************
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* Global Function Prototypes
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C" {
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#else
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#define EXTERN extern
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#endif
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/* Functions defined in mq_initialize.c ************************************/
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EXTERN void weak_function mq_initialize(void);
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EXTERN void mq_desblockalloc(void);
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void weak_function mq_initialize(void);
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void mq_desblockalloc(void);
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EXTERN mqd_t mq_descreate(FAR _TCB* mtcb, FAR msgq_t* msgq, int oflags);
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EXTERN FAR msgq_t *mq_findnamed(const char *mq_name);
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EXTERN void mq_msgfree(FAR mqmsg_t *mqmsg);
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EXTERN void mq_msgqfree(FAR msgq_t *msgq);
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mqd_t mq_descreate(FAR _TCB* mtcb, FAR msgq_t* msgq, int oflags);
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FAR msgq_t *mq_findnamed(const char *mq_name);
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void mq_msgfree(FAR mqmsg_t *mqmsg);
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void mq_msgqfree(FAR msgq_t *msgq);
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/* mq_waitirq.c ************************************************************/
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EXTERN void mq_waitirq(FAR _TCB *wtcb, int errcode);
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void mq_waitirq(FAR _TCB *wtcb, int errcode);
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/* mq_rcvinternal.c ********************************************************/
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EXTERN int mq_verifyreceive(mqd_t mqdes, void *msg, size_t msglen);
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EXTERN FAR mqmsg_t *mq_waitreceive(mqd_t mqdes);
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EXTERN ssize_t mq_doreceive(mqd_t mqdes, mqmsg_t *mqmsg, void *ubuffer,
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int *prio);
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int mq_verifyreceive(mqd_t mqdes, void *msg, size_t msglen);
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FAR mqmsg_t *mq_waitreceive(mqd_t mqdes);
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ssize_t mq_doreceive(mqd_t mqdes, mqmsg_t *mqmsg, void *ubuffer, int *prio);
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/* mq_sndinternal.c ********************************************************/
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EXTERN int mq_verifysend(mqd_t mqdes, const void *msg, size_t msglen,
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int prio);
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EXTERN FAR mqmsg_t *mq_msgalloc(void);
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EXTERN int mq_waitsend(mqd_t mqdes);
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EXTERN int mq_dosend(mqd_t mqdes, FAR mqmsg_t *mqmsg, const void *msg,
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int mq_verifysend(mqd_t mqdes, const void *msg, size_t msglen, int prio);
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FAR mqmsg_t *mq_msgalloc(void);
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int mq_waitsend(mqd_t mqdes);
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int mq_dosend(mqd_t mqdes, FAR mqmsg_t *mqmsg, const void *msg,
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size_t msglen, int prio);
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/* mq_release.c ************************************************************/
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struct task_group_s; /* Forward reference */
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void mq_release(FAR struct task_group_s *group);
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#undef EXTERN
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#ifdef __cplusplus
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}
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92
sched/mq_release.c
Normal file
92
sched/mq_release.c
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@ -0,0 +1,92 @@
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/************************************************************************
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* sched/mq_release.c
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*
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* Copyright (C) 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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/************************************************************************
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* Included Files
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************************************************************************/
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#include <nuttx/config.h>
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#include <string.h>
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#include "mq_internal.h"
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/************************************************************************
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* Definitions
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************************************************************************/
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/************************************************************************
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* Private Type Declarations
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************************************************************************/
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/************************************************************************
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* Global Variables
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************************************************************************/
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/************************************************************************
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* Private Variables
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************************************************************************/
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/************************************************************************
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* Private Functions
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************************************************************************/
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/************************************************************************
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* Public Functions
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************************************************************************/
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/************************************************************************
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* Name: mq_release
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*
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* Description:
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* This function is called when the final member of a task group exits.
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* This function closes all of the message queues opened by members of
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* the task group.
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*
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* Inputs:
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* group - The task group that is terminating.
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*
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* Return Value:
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* None
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*
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************************************************************************/
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void mq_release(FAR struct task_group_s *group)
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{
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while (group->tg_msgdesq.head)
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{
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mq_close((mqd_t)group->tg_msgdesq.head);
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}
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}
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