From: "Stuart MacDonald" <stuartm@connecttech.com>
To: "LKML" <linux-kernel@vger.kernel.org>
Subject: Is it possible to wait on multiple wait_queues?
Date: Mon, 23 Aug 2004 14:12:39 -0400 [thread overview]
Message-ID: <000e01c4893c$c69c6d80$294b82ce@stuartm> (raw)
Is there anything wrong with the code below (which has been modified
from the __wait_event_interruptible macro)? Assuming of course that
(condition) checks for both conditions.
..Stu
#define __wait_event2_interruptible(wq1, wq2, condition, ret) \
do { \
wait_queue_t __wait1, __wait2; \
init_waitqueue_entry(&__wait1, current); \
init_waitqueue_entry(&__wait2, current); \
\
add_wait_queue(&wq1, &__wait1); \
add_wait_queue(&wq2, &__wait2); \
for (;;) { \
set_current_state(TASK_INTERRUPTIBLE); \
if (condition) \
break; \
if (!signal_pending(current)) { \
schedule(); \
continue; \
} \
ret = -ERESTARTSYS; \
break; \
} \
current->state = TASK_RUNNING; \
remove_wait_queue(&wq1, &__wait1); \
remove_wait_queue(&wq2, &__wait2); \
} while (0)
reply other threads:[~2004-08-23 18:13 UTC|newest]
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