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Don't flush streams until the final thread of a group exits

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This commit is contained in:
Gregory Nutt
2013-04-18 11:41:11 -06:00
parent a9f461533e
commit c128edffd2
1 changed files with 32 additions and 10 deletions
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sched/task_exithook.c
+32 -10
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@@ -540,12 +540,40 @@ static inline void task_exitwakeup(FAR struct tcb_s *tcb, int status)
# define task_exitwakeup(tcb, status)
#endif
/****************************************************************************
* Name: task_flushstreams
*
* Description:
* Flush all streams when the final thread of a group exits.
*
****************************************************************************/
#if CONFIG_NFILE_STREAMS > 0
static inline void task_flushstreams(FAR struct tcb_s *tcb)
{
FAR struct task_group_s *group = tcb->group;
/* Have we already left the group? Are we the last thread in the group? */
if (group && group->tg_nmembers == 1)
{
#if defined(CONFIG_NUTTX_KERNEL) && defined(CONFIG_MM_KERNEL_HEAP)
(void)lib_flushall(tcb->group->tg_streamlist);
#else
(void)lib_flushall(&tcb->group->tg_streamlist);
#endif
}
}
#else
# define task_flushstreams(tcb)
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: task_hook
* Name: task_exithook
*
* Description:
* This function implements some of the internal logic of exit() and
@@ -604,17 +632,11 @@ void task_exithook(FAR struct tcb_s *tcb, int status)
task_exitwakeup(tcb, status);
/* Flush all streams (File descriptors will be closed when
* the TCB is deallocated).
/* If this is the last thread in the group, then flush all streams (File
* descriptors will be closed when the TCB is deallocated).
*/
#if CONFIG_NFILE_STREAMS > 0
#if defined(CONFIG_NUTTX_KERNEL) && defined(CONFIG_MM_KERNEL_HEAP)
(void)lib_flushall(tcb->group->tg_streamlist);
#else
(void)lib_flushall(&tcb->group->tg_streamlist);
#endif
#endif
task_flushstreams(tcb);
/* Leave the task group. Perhaps discarding any un-reaped child
* status (no zombies here!)