xnu-1228.tar.gz

[apple/xnu.git] / libsyscall / mach / port_obj.c

diff --git a/libsyscall/mach/port_obj.c b/libsyscall/mach/port_obj.c
new file mode 100644 (file)
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+++ b/libsyscall/mach/port_obj.c
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+/*
+ * Copyright (c) 2003 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
+ * 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.
+ * 
+ * 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, 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@
+ */
+/*
+ * @OSF_COPYRIGHT@
+ */
+
+/*
+ * Define a service to map from a kernel-generated port name
+ * to server-defined "type" and "value" data to be associated
+ * with the port.
+ */
+#include <mach/port_obj.h>
+#include <mach/mach.h>
+
+#define DEFAULT_TABLE_SIZE     (64 * 1024)
+
+struct port_obj_tentry *port_obj_table;
+int port_obj_table_size = DEFAULT_TABLE_SIZE;
+
+void port_obj_init(
+       int maxsize)
+{
+       kern_return_t kr;
+
+       kr = vm_allocate(mach_task_self(),
+               (vm_offset_t *)&port_obj_table,
+               (vm_size_t)(maxsize * sizeof (*port_obj_table)),
+               TRUE);
+       if (kr != KERN_SUCCESS)
+               panic("port_obj_init: can't vm_allocate");
+}