*
* @APPLE_LICENSE_HEADER_START@
*
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License"). You may not use this file except in compliance with the
+ * License. Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.
*
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * This Original Code and all software distributed under the License are
+ * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
#include <kern/timer_call.h>
#include <kern/call_entry.h>
+#ifdef i386
+/*
+ * Until we arrange for per-cpu timers, use the master cpus queues only.
+ * Fortunately, the timer_call_lock synchronizes access to all queues.
+ */
+#undef cpu_number()
+#define cpu_number() 0
+#endif /* i386 */
+
decl_simple_lock_data(static,timer_call_lock)
static
queue_head_t
- delayed_call_queues[NCPUS];
+ timer_call_queues[NCPUS];
static struct {
int delayed_num,
delayed_hiwat;
-} timer_calls;
-
-static boolean_t
- timer_call_initialized = FALSE;
+} timer_call_vars;
static void
timer_call_interrupt(
spl_t s;
int i;
- if (timer_call_initialized)
- panic("timer_call_initialize");
-
simple_lock_init(&timer_call_lock, ETAP_MISC_TIMER);
s = splclock();
simple_lock(&timer_call_lock);
for (i = 0; i < NCPUS; i++)
- queue_init(&delayed_call_queues[i]);
+ queue_init(&timer_call_queues[i]);
clock_set_timer_func((clock_timer_func_t)timer_call_interrupt);
- timer_call_initialized = TRUE;
-
simple_unlock(&timer_call_lock);
splx(s);
}
}
insque(qe(call), qe(current));
- if (++timer_calls.delayed_num > timer_calls.delayed_hiwat)
- timer_calls.delayed_hiwat = timer_calls.delayed_num;
+ if (++timer_call_vars.delayed_num > timer_call_vars.delayed_hiwat)
+ timer_call_vars.delayed_hiwat = timer_call_vars.delayed_num;
call->state = DELAYED;
}
timer_call_t call)
{
(void)remque(qe(call));
- timer_calls.delayed_num--;
+ timer_call_vars.delayed_num--;
call->state = IDLE;
}
uint64_t deadline)
{
boolean_t result = TRUE;
- queue_t delayed;
+ queue_t queue;
spl_t s;
s = splclock();
call->param1 = 0;
call->deadline = deadline;
- delayed = &delayed_call_queues[cpu_number()];
+ queue = &timer_call_queues[cpu_number()];
- _delayed_call_enqueue(delayed, call);
+ _delayed_call_enqueue(queue, call);
- if (queue_first(delayed) == qe(call))
+ if (queue_first(queue) == qe(call))
_set_delayed_call_timer(call);
simple_unlock(&timer_call_lock);
uint64_t deadline)
{
boolean_t result = TRUE;
- queue_t delayed;
+ queue_t queue;
spl_t s;
s = splclock();
call->param1 = param1;
call->deadline = deadline;
- delayed = &delayed_call_queues[cpu_number()];
+ queue = &timer_call_queues[cpu_number()];
- _delayed_call_enqueue(delayed, call);
+ _delayed_call_enqueue(queue, call);
- if (queue_first(delayed) == qe(call))
+ if (queue_first(queue) == qe(call))
_set_delayed_call_timer(call);
simple_unlock(&timer_call_lock);
processor_t processor)
{
timer_call_t call;
- queue_t delayed, delayed1;
+ queue_t queue, myqueue;
assert(processor != current_processor());
- delayed = &delayed_call_queues[processor->slot_num];
- delayed1 = &delayed_call_queues[cpu_number()];
+ queue = &timer_call_queues[processor->slot_num];
+ myqueue = &timer_call_queues[cpu_number()];
simple_lock(&timer_call_lock);
- call = TC(queue_first(delayed));
+ call = TC(queue_first(queue));
- while (!queue_end(delayed, qe(call))) {
+ while (!queue_end(queue, qe(call))) {
_delayed_call_dequeue(call);
- _delayed_call_enqueue(delayed1, call);
+ _delayed_call_enqueue(myqueue, call);
- call = TC(queue_first(delayed));
+ call = TC(queue_first(queue));
}
- call = TC(queue_first(delayed1));
+ call = TC(queue_first(myqueue));
- if (!queue_end(delayed1, qe(call)))
+ if (!queue_end(myqueue, qe(call)))
_set_delayed_call_timer(call);
simple_unlock(&timer_call_lock);
uint64_t timestamp)
{
timer_call_t call;
- queue_t delayed = &delayed_call_queues[cpu_number()];
+ queue_t queue = &timer_call_queues[cpu_number()];
simple_lock(&timer_call_lock);
- call = TC(queue_first(delayed));
+ call = TC(queue_first(queue));
- while (!queue_end(delayed, qe(call))) {
+ while (!queue_end(queue, qe(call))) {
if (call->deadline <= timestamp) {
timer_call_func_t func;
timer_call_param_t param0, param1;
else
break;
- call = TC(queue_first(delayed));
+ call = TC(queue_first(queue));
}
- if (!queue_end(delayed, qe(call)))
+ if (!queue_end(queue, qe(call)))
_set_delayed_call_timer(call);
simple_unlock(&timer_call_lock);
projects / apple / xnu.git / blobdiff