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server: Run async I/O APCs from the SIGUSR1 handler.

This commit is contained in:
Alexandre Julliard 2007-06-04 18:16:48 +02:00
parent e32252efae
commit 4c5b55a0f8
1 changed files with 15 additions and 3 deletions
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18
server/thread.c
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@ -704,6 +704,13 @@ static inline struct list *get_apc_queue( struct thread *thread, enum apc_type t
}
}
/* check if thread is currently waiting for a (system) apc */
static inline int is_in_apc_wait( struct thread *thread )
{
return (thread->process->suspend || thread->suspend ||
(thread->wait && (thread->wait->flags & SELECT_INTERRUPTIBLE)));
}
/* queue an existing APC to a given thread */
static int queue_apc( struct process *process, struct thread *thread, struct thread_apc *apc )
{
@ -717,8 +724,7 @@ static int queue_apc( struct process *process, struct thread *thread, struct thr
LIST_FOR_EACH_ENTRY( candidate, &process->thread_list, struct thread, proc_entry )
{
if (candidate->state == TERMINATED) continue;
if (process->suspend || candidate->suspend ||
(candidate->wait && (candidate->wait->flags & SELECT_INTERRUPTIBLE)))
if (is_in_apc_wait( candidate ))
{
thread = candidate;
break;
@ -737,15 +743,21 @@ static int queue_apc( struct process *process, struct thread *thread, struct thr
}
}
if (!thread) return 0; /* nothing found */
queue = get_apc_queue( thread, apc->call.type );
}
else
{
if (thread->state == TERMINATED) return 0;
queue = get_apc_queue( thread, apc->call.type );
/* send signal for system APCs if needed */
if (queue == &thread->system_apc && list_empty( queue ) && !is_in_apc_wait( thread ))
{
if (!send_thread_signal( thread, SIGUSR1 )) return 0;
}
/* cancel a possible previous APC with the same owner */
if (apc->owner) thread_cancel_apc( thread, apc->owner, apc->call.type );
}
queue = get_apc_queue( thread, apc->call.type );
grab_object( apc );
list_add_tail( queue, &apc->entry );
if (!list_prev( queue, &apc->entry )) /* first one */