* Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ *
* 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
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
- *
+ *
* 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
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* 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.
- *
+ *
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
#include <ipc/ipc_space.h>
+#include <kern/lock_group.h>
#include <kern/mk_timer.h>
#include <kern/thread_call.h>
-static zone_t mk_timer_zone;
+static zone_t mk_timer_zone;
static mach_port_qos_t mk_timer_qos = {
- FALSE, TRUE, 0, sizeof (mk_timer_expire_msg_t)
+ .name = FALSE,
+ .prealloc = TRUE,
+ .len = sizeof(mk_timer_expire_msg_t),
};
-static void mk_timer_expire(
- void *p0,
- void *p1);
+static void mk_timer_expire(
+ void *p0,
+ void *p1);
mach_port_name_t
mk_timer_create_trap(
__unused struct mk_timer_create_trap_args *args)
{
- mk_timer_t timer;
- ipc_space_t myspace = current_space();
- mach_port_name_t name = MACH_PORT_NULL;
- ipc_port_t port;
- kern_return_t result;
+ mk_timer_t timer;
+ ipc_space_t myspace = current_space();
+ mach_port_name_t name = MACH_PORT_NULL;
+ ipc_port_t port;
+ kern_return_t result;
timer = (mk_timer_t)zalloc(mk_timer_zone);
- if (timer == NULL)
- return (MACH_PORT_NULL);
+ if (timer == NULL) {
+ return MACH_PORT_NULL;
+ }
- result = mach_port_allocate_qos(myspace, MACH_PORT_RIGHT_RECEIVE,
- &mk_timer_qos, &name);
- if (result == KERN_SUCCESS)
+ result = mach_port_allocate_internal(myspace, MACH_PORT_RIGHT_RECEIVE,
+ &mk_timer_qos, &name);
+ if (result == KERN_SUCCESS) {
result = ipc_port_translate_receive(myspace, name, &port);
+ }
if (result != KERN_SUCCESS) {
zfree(mk_timer_zone, timer);
- return (MACH_PORT_NULL);
+ return MACH_PORT_NULL;
}
simple_lock_init(&timer->lock, 0);
- call_entry_setup(&timer->call_entry, mk_timer_expire, timer);
+ thread_call_setup(&timer->call_entry, mk_timer_expire, timer);
timer->is_armed = timer->is_dead = FALSE;
timer->active = 0;
ip_reference(port);
ip_unlock(port);
- return (name);
+ return name;
}
void
mk_timer_port_destroy(
- ipc_port_t port)
+ ipc_port_t port)
{
- mk_timer_t timer = NULL;
+ mk_timer_t timer = NULL;
ip_lock(port);
if (ip_kotype(port) == IKOT_TIMER) {
timer = (mk_timer_t)port->ip_kobject;
assert(timer != NULL);
ipc_kobject_set_atomically(port, IKO_NULL, IKOT_NONE);
- simple_lock(&timer->lock);
+ simple_lock(&timer->lock, LCK_GRP_NULL);
assert(timer->port == port);
}
ip_unlock(port);
if (timer != NULL) {
- if (thread_call_cancel(&timer->call_entry))
+ if (thread_call_cancel(&timer->call_entry)) {
timer->active--;
+ }
timer->is_armed = FALSE;
timer->is_dead = TRUE;
void
mk_timer_init(void)
{
- int s = sizeof (mk_timer_data_t);
+ int s = sizeof(mk_timer_data_t);
assert(!(mk_timer_zone != NULL));
mk_timer_zone = zinit(s, (4096 * s), (16 * s), "mk_timer");
+
+ zone_change(mk_timer_zone, Z_NOENCRYPT, TRUE);
}
static void
mk_timer_expire(
- void *p0,
- __unused void *p1)
+ void *p0,
+ __unused void *p1)
{
- mk_timer_t timer = p0;
- ipc_port_t port;
+ mk_timer_t timer = p0;
+ ipc_port_t port;
- simple_lock(&timer->lock);
+ simple_lock(&timer->lock, LCK_GRP_NULL);
if (timer->active > 1) {
timer->active--;
assert(timer->active == 1);
while (timer->is_armed && timer->active == 1) {
- mk_timer_expire_msg_t msg;
+ mk_timer_expire_msg_t msg;
timer->is_armed = FALSE;
simple_unlock(&timer->lock);
- msg.header.msgh_bits = MACH_MSGH_BITS(MACH_MSG_TYPE_COPY_SEND, 0);
+ msg.header.msgh_bits =
+ MACH_MSGH_BITS_SET(MACH_MSG_TYPE_COPY_SEND, 0, 0, 0);
msg.header.msgh_remote_port = port;
msg.header.msgh_local_port = MACH_PORT_NULL;
- msg.header.msgh_reserved = msg.header.msgh_id = 0;
+ msg.header.msgh_voucher_port = MACH_PORT_NULL;
+ msg.header.msgh_id = 0;
msg.unused[0] = msg.unused[1] = msg.unused[2] = 0;
- (void) mach_msg_send_from_kernel(&msg.header, sizeof (msg));
+ (void) mach_msg_send_from_kernel_proper(&msg.header, sizeof(msg));
- simple_lock(&timer->lock);
+ simple_lock(&timer->lock, LCK_GRP_NULL);
}
if (--timer->active == 0 && timer->is_dead) {
simple_unlock(&timer->lock);
}
+/*
+ * mk_timer_destroy_trap: Destroy the Mach port associated with a timer
+ *
+ * Parameters: args User argument descriptor (see below)
+ *
+ * Indirect: args->name Mach port name
+ *
+ *
+ * Returns: 0 Success
+ * !0 Not success
+ *
+ */
kern_return_t
mk_timer_destroy_trap(
struct mk_timer_destroy_trap_args *args)
{
- mach_port_name_t name = args->name;
- ipc_space_t myspace = current_space();
- ipc_port_t port;
- kern_return_t result;
+ mach_port_name_t name = args->name;
+ ipc_space_t myspace = current_space();
+ ipc_port_t port;
+ kern_return_t result;
result = ipc_port_translate_receive(myspace, name, &port);
- if (result != KERN_SUCCESS)
- return (result);
+ if (result != KERN_SUCCESS) {
+ return result;
+ }
if (ip_kotype(port) == IKOT_TIMER) {
ip_unlock(port);
result = mach_port_destroy(myspace, name);
- }
- else {
+ } else {
ip_unlock(port);
result = KERN_INVALID_ARGUMENT;
}
- return (result);
+ return result;
}
-kern_return_t
-mk_timer_arm_trap(
- struct mk_timer_arm_trap_args *args)
+/*
+ * mk_timer_arm_trap: Start (arm) a timer
+ *
+ * Parameters: args User argument descriptor (see below)
+ *
+ * Indirect: args->name Mach port name
+ * args->expire_time Time when timer expires
+ *
+ *
+ * Returns: 0 Success
+ * !0 Not success
+ *
+ */
+
+static kern_return_t
+mk_timer_arm_trap_internal(mach_port_name_t name, uint64_t expire_time, uint64_t mk_leeway, uint64_t mk_timer_flags)
{
- mach_port_name_t name = args->name;
- uint64_t expire_time = args->expire_time;
- mk_timer_t timer;
- ipc_space_t myspace = current_space();
- ipc_port_t port;
- kern_return_t result;
+ mk_timer_t timer;
+ ipc_space_t myspace = current_space();
+ ipc_port_t port;
+ kern_return_t result;
result = ipc_port_translate_receive(myspace, name, &port);
- if (result != KERN_SUCCESS)
- return (result);
+ if (result != KERN_SUCCESS) {
+ return result;
+ }
if (ip_kotype(port) == IKOT_TIMER) {
timer = (mk_timer_t)port->ip_kobject;
assert(timer != NULL);
- simple_lock(&timer->lock);
+
+ simple_lock(&timer->lock, LCK_GRP_NULL);
assert(timer->port == port);
ip_unlock(port);
if (!timer->is_dead) {
timer->is_armed = TRUE;
- if (!thread_call_enter_delayed(&timer->call_entry, expire_time))
- timer->active++;
+ if (expire_time > mach_absolute_time()) {
+ uint32_t tcflags = THREAD_CALL_DELAY_USER_NORMAL;
+
+ if (mk_timer_flags & MK_TIMER_CRITICAL) {
+ tcflags = THREAD_CALL_DELAY_USER_CRITICAL;
+ }
+
+ if (mk_leeway != 0) {
+ tcflags |= THREAD_CALL_DELAY_LEEWAY;
+ }
+
+ if (!thread_call_enter_delayed_with_leeway(
+ &timer->call_entry, NULL,
+ expire_time, mk_leeway, tcflags)) {
+ timer->active++;
+ }
+ } else {
+ if (!thread_call_enter1(&timer->call_entry, NULL)) {
+ timer->active++;
+ }
+ }
}
simple_unlock(&timer->lock);
- }
- else {
+ } else {
ip_unlock(port);
result = KERN_INVALID_ARGUMENT;
}
+ return result;
+}
- return (result);
+kern_return_t
+mk_timer_arm_trap(struct mk_timer_arm_trap_args *args)
+{
+ return mk_timer_arm_trap_internal(args->name, args->expire_time, 0, MK_TIMER_NORMAL);
}
+kern_return_t
+mk_timer_arm_leeway_trap(struct mk_timer_arm_leeway_trap_args *args)
+{
+ return mk_timer_arm_trap_internal(args->name, args->expire_time, args->mk_leeway, args->mk_timer_flags);
+}
+
+/*
+ * mk_timer_cancel_trap: Cancel a timer
+ *
+ * Parameters: args User argument descriptor (see below)
+ *
+ * Indirect: args->name Mach port name
+ * args->result_time The armed time of the cancelled timer (return value)
+ *
+ *
+ * Returns: 0 Success
+ * !0 Not success
+ *
+ */
kern_return_t
mk_timer_cancel_trap(
struct mk_timer_cancel_trap_args *args)
{
- mach_port_name_t name = args->name;
- mach_vm_address_t result_time_addr = args->result_time;
- uint64_t armed_time = 0;
- mk_timer_t timer;
- ipc_space_t myspace = current_space();
- ipc_port_t port;
- kern_return_t result;
+ mach_port_name_t name = args->name;
+ mach_vm_address_t result_time_addr = args->result_time;
+ uint64_t armed_time = 0;
+ mk_timer_t timer;
+ ipc_space_t myspace = current_space();
+ ipc_port_t port;
+ kern_return_t result;
result = ipc_port_translate_receive(myspace, name, &port);
- if (result != KERN_SUCCESS)
- return (result);
+ if (result != KERN_SUCCESS) {
+ return result;
+ }
if (ip_kotype(port) == IKOT_TIMER) {
timer = (mk_timer_t)port->ip_kobject;
assert(timer != NULL);
- simple_lock(&timer->lock);
+ simple_lock(&timer->lock, LCK_GRP_NULL);
assert(timer->port == port);
ip_unlock(port);
if (timer->is_armed) {
- armed_time = timer->call_entry.deadline;
- if (thread_call_cancel(&timer->call_entry))
+ armed_time = timer->call_entry.tc_call.deadline;
+ if (thread_call_cancel(&timer->call_entry)) {
timer->active--;
+ }
timer->is_armed = FALSE;
}
simple_unlock(&timer->lock);
- }
- else {
+ } else {
ip_unlock(port);
result = KERN_INVALID_ARGUMENT;
}
- if (result == KERN_SUCCESS)
- if ( result_time_addr != 0 &&
- copyout((void *)&armed_time, result_time_addr,
- sizeof (armed_time)) != 0 )
+ if (result == KERN_SUCCESS) {
+ if (result_time_addr != 0 &&
+ copyout((void *)&armed_time, result_time_addr,
+ sizeof(armed_time)) != 0) {
result = KERN_FAILURE;
+ }
+ }
- return (result);
+ return result;
}
projects / apple / xnu.git / blobdiff