/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * 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. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * 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.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * 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_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
*/
-/*
- * HISTORY
- *
- * Revision 1.1.1.1 1998/09/22 21:05:34 wsanchez
- * Import of Mac OS X kernel (~semeria)
- *
- * Revision 1.1.1.1 1998/03/07 02:25:55 wsanchez
- * Import of OSF Mach kernel (~mburg)
- *
- * Revision 1.1.6.1 1995/01/06 19:47:19 devrcs
- * mk6 CR668 - 1.3b26 merge
- * new file for mk6
- * [1994/10/12 22:19:28 dwm]
- *
- * Revision 1.1.3.4 1994/05/13 20:10:01 tmt
- * Changed three unsigned casts to natural_t.
- * [1994/05/12 22:12:28 tmt]
- *
- * Revision 1.1.3.2 1993/11/30 18:26:24 jph
- * CR10228 -- Typo in unlock(), ledger_ledger should be child_ledger.
- * [1993/11/30 16:10:43 jph]
- *
- * Revision 1.1.3.1 1993/11/24 21:22:14 jph
- * CR9801 brezak merge, ledgers, security and NMK15_COMPAT
- * [1993/11/23 22:41:07 jph]
- *
- * Revision 1.1.1.4 1993/09/08 14:17:36 brezak
- * Include <mach/ledger_server.h> for protos.
- *
- * Revision 1.1.1.3 1993/08/20 14:16:55 brezak
- * Created.
- *
- * $EndLog$
- */
-
/*
* 8/13/93
*
#include <mach/mach_types.h>
#include <mach/message.h>
+#include <mach/port.h>
+#include <mach/ledger_server.h>
+
#include <kern/mach_param.h>
#include <kern/misc_protos.h>
-#include <mach/port.h>
#include <kern/lock.h>
#include <kern/ipc_kobject.h>
-#include <ipc/ipc_space.h>
-#include <ipc/ipc_port.h>
#include <kern/host.h>
#include <kern/ledger.h>
-#include <mach/ledger_server.h>
+#include <kern/kalloc.h>
+
+#include <ipc/ipc_space.h>
+#include <ipc/ipc_port.h>
ledger_t root_wired_ledger;
ledger_t root_paged_ledger;
ledger_t ledger,
ledger_item_t amount)
{
+ if (ledger == LEDGER_NULL)
+ return KERN_SUCCESS;
+
/* Need to lock the ledger */
ledger_lock(ledger);
if (ledger->ledger_limit != LEDGER_ITEM_INFINITY &&
ledger->ledger_balance + amount > ledger->ledger_limit) {
/* XXX this is where you do BAD things */
- printf("Ledger limit exceeded ! ledger=%x lim=%d balance=%d\n",
+ printf("Ledger limit exceeded ! ledger=%p lim=%d balance=%d\n",
ledger, ledger->ledger_limit,
ledger->ledger_balance);
ledger_unlock(ledger);
return(KERN_RESOURCE_SHORTAGE);
}
- if ((natural_t)(ledger->ledger_balance + amount)
+ if ((ledger->ledger_balance + amount)
< LEDGER_ITEM_INFINITY)
ledger->ledger_balance += amount;
else
return(LEDGER_NULL);
ledger->ledger_self = ipc_port_alloc_kernel();
- if (ledger->ledger_self == IP_NULL)
+ if (ledger->ledger_self == IP_NULL) {
+ kfree(ledger, sizeof(ledger_data_t));
return(LEDGER_NULL);
+ }
ledger_lock_init(ledger);
ledger->ledger_limit = limit;
ipc_port_dealloc_kernel(ledger->ledger_self);
/* XXX release send right on service port */
- kfree((vm_offset_t)ledger, sizeof(*ledger));
+ kfree(ledger, sizeof(*ledger));
}
(*new_ledger)->ledger_limit = transfer;
/* Charge the ledger against the ledger_ledger */
- ledger_ledger->ledger_balance += sizeof(ledger_data_t);
+ ledger_ledger->ledger_balance += (ledger_item_t)sizeof(ledger_data_t);
ledger_unlock(parent_ledger);
ledger_unlock(ledger_ledger);
(void) ledger_enter(ledger->ledger_parent, ledger->ledger_balance);
/* adjust the balance of the creation ledger */
- (void) ledger_enter(ledger->ledger_ledger, -sizeof(*ledger));
+ (void) ledger_enter(ledger->ledger_ledger, (ledger_item_t)-sizeof(*ledger));
/* delete the ledger */
ledger_deallocate(ledger);
{
ipc_port_t port;
- port = ipc_port_make_send(ledger->ledger_self);
+ if (ledger == LEDGER_NULL)
+ return IP_NULL;
+ port = ipc_port_make_send(ledger->ledger_self);
return port;
}
ledger_copy(
ledger_t ledger)
{
- /* XXX reference counting */
- assert(ledger);
+ if (ledger == LEDGER_NULL)
+ return IP_NULL;
+
return(ipc_port_copy_send(ledger->ledger_self));
}
projects / apple / xnu.git / blobdiff