xnu-4903.221.2.tar.gz

[apple/xnu.git] / osfmk / kern / host_notify.c

diff --git a/osfmk/kern/host_notify.c b/osfmk/kern/host_notify.c
index 064aab94e3a8d66723358092ac953568f22aa8bf..a69f109b435122916bd326ff76ef7865ec949f78 100644 (file)
--- a/osfmk/kern/host_notify.c
+++ b/osfmk/kern/host_notify.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003-2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2003-2009 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -25,14 +25,6 @@
  * 
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
-/*
- * Copyright (c) 2003 Apple Computer, Inc.  All rights reserved.
- *
- * HISTORY
- *
- * 16 January 2003 (debo)
- *  Created.
- */
 
 #include <mach/mach_types.h>
 #include <mach/mach_host.h>
@@ -45,13 +37,19 @@
 
 #include "mach/host_notify_reply.h"
 
+decl_lck_mtx_data(,host_notify_lock)
+
+lck_mtx_ext_t                  host_notify_lock_ext;
+lck_grp_t                              host_notify_lock_grp;
+lck_attr_t                             host_notify_lock_attr;
+static lck_grp_attr_t  host_notify_lock_grp_attr;
 static zone_t                  host_notify_zone;
-decl_mutex_data(static,host_notify_lock)
 
 static queue_head_t            host_notify_queue[HOST_NOTIFY_TYPE_MAX+1];
 
 static mach_msg_id_t   host_notify_replyid[HOST_NOTIFY_TYPE_MAX+1] =
-                                                               { HOST_CALENDAR_CHANGED_REPLYID };
+                                                               { HOST_CALENDAR_CHANGED_REPLYID,
+                                                                 HOST_CALENDAR_SET_REPLYID };
 
 struct host_notify_entry {
        queue_chain_t           entries;
@@ -68,7 +66,11 @@ host_notify_init(void)
        for (i = 0; i <= HOST_NOTIFY_TYPE_MAX; i++)
                queue_init(&host_notify_queue[i]);
 
-       mutex_init(&host_notify_lock, 0);
+       lck_grp_attr_setdefault(&host_notify_lock_grp_attr);
+       lck_grp_init(&host_notify_lock_grp, "host_notify", &host_notify_lock_grp_attr);
+       lck_attr_setdefault(&host_notify_lock_attr);
+
+       lck_mtx_init_ext(&host_notify_lock, &host_notify_lock_ext, &host_notify_lock_grp, &host_notify_lock_attr);
 
        i = sizeof (struct host_notify_entry);
        host_notify_zone =
@@ -96,13 +98,13 @@ host_request_notification(
        if (entry == NULL)
                return (KERN_RESOURCE_SHORTAGE);
 
-       mutex_lock(&host_notify_lock);
+       lck_mtx_lock(&host_notify_lock);
 
        ip_lock(port);
-       if (!ip_active(port) || ip_kotype(port) != IKOT_NONE) {
+       if (!ip_active(port) || port->ip_tempowner || ip_kotype(port) != IKOT_NONE) {
                ip_unlock(port);
 
-               mutex_unlock(&host_notify_lock);
+               lck_mtx_unlock(&host_notify_lock);
                zfree(host_notify_zone, entry);
 
                return (KERN_FAILURE);
@@ -113,7 +115,7 @@ host_request_notification(
        ip_unlock(port);
 
        enqueue_tail(&host_notify_queue[notify_type], (queue_entry_t)entry);
-       mutex_unlock(&host_notify_lock);
+       lck_mtx_unlock(&host_notify_lock);
 
        return (KERN_SUCCESS);
 }
@@ -124,7 +126,7 @@ host_notify_port_destroy(
 {
        host_notify_t           entry;
 
-       mutex_lock(&host_notify_lock);
+       lck_mtx_lock(&host_notify_lock);
 
        ip_lock(port);
        if (ip_kotype(port) == IKOT_HOST_NOTIFY) {
@@ -134,8 +136,8 @@ host_notify_port_destroy(
                ip_unlock(port);
 
                assert(entry->port == port);
-               remqueue(NULL, (queue_entry_t)entry);
-               mutex_unlock(&host_notify_lock);
+               remqueue((queue_entry_t)entry);
+               lck_mtx_unlock(&host_notify_lock);
                zfree(host_notify_zone, entry);
 
                ipc_port_release_sonce(port);
@@ -143,7 +145,7 @@ host_notify_port_destroy(
        }
        ip_unlock(port);
 
-       mutex_unlock(&host_notify_lock);
+       lck_mtx_unlock(&host_notify_lock);
 }
 
 static void
@@ -154,7 +156,7 @@ host_notify_all(
 {
        queue_t         notify_queue = &host_notify_queue[notify_type];
 
-       mutex_lock(&host_notify_lock);
+       lck_mtx_lock(&host_notify_lock);
 
        if (!queue_empty(notify_queue)) {
                queue_head_t            send_queue;
@@ -166,10 +168,11 @@ host_notify_all(
                send_queue.next->prev = &send_queue;
                send_queue.prev->next = &send_queue;
 
-               msg->msgh_bits = MACH_MSGH_BITS(MACH_MSG_TYPE_MOVE_SEND_ONCE, 0);
+               msg->msgh_bits =
+                   MACH_MSGH_BITS_SET(MACH_MSG_TYPE_MOVE_SEND_ONCE, 0, 0, 0);
                msg->msgh_local_port = MACH_PORT_NULL;
+               msg->msgh_voucher_port = MACH_PORT_NULL;
                msg->msgh_id = host_notify_replyid[notify_type];
-               msg->msgh_reserved = 0;
 
                while ((entry = (host_notify_t)dequeue(&send_queue)) != NULL) {
                        ipc_port_t              port;
@@ -183,18 +186,18 @@ host_notify_all(
                        ipc_kobject_set_atomically(port, IKO_NULL, IKOT_NONE);
                        ip_unlock(port);
 
-                       mutex_unlock(&host_notify_lock);
+                       lck_mtx_unlock(&host_notify_lock);
                        zfree(host_notify_zone, entry);
 
                        msg->msgh_remote_port = port;
 
-                       (void) mach_msg_send_from_kernel(msg, msg_size);
+                       (void) mach_msg_send_from_kernel_proper(msg, msg_size);
 
-                       mutex_lock(&host_notify_lock);
+                       lck_mtx_lock(&host_notify_lock);
                }
        }
 
-       mutex_unlock(&host_notify_lock);
+       lck_mtx_unlock(&host_notify_lock);
 }
 
 void
@@ -204,3 +207,11 @@ host_notify_calendar_change(void)
 
        host_notify_all(HOST_NOTIFY_CALENDAR_CHANGE, &msg.Head, sizeof (msg));
 }
+
+void
+host_notify_calendar_set(void)
+{
+       __Request__host_calendar_set_t  msg;
+
+       host_notify_all(HOST_NOTIFY_CALENDAR_SET, &msg.Head, sizeof (msg));
+}