--- /dev/null
+/*
+ * Copyright (c) 2012 Apple Inc. All rights reserved.
+ *
+ * @APPLE_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. 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_LICENSE_HEADER_END@
+ */
+
+#ifndef _LIBSYSTEMCONFIGURATION_SERVER_H
+#define _LIBSYSTEMCONFIGURATION_SERVER_H
+
+#include <Availability.h>
+#include <TargetConditionals.h>
+#include <sys/cdefs.h>
+#include <dispatch/dispatch.h>
+#include <xpc/xpc.h>
+#include <CoreFoundation/CoreFoundation.h>
+
+// ------------------------------------------------------------
+
+#pragma mark -
+#pragma mark [XPC] information server common code
+
+// ------------------------------------------------------------
+
+
+/*
+ * libSC_info_server_t
+ * data (CFData)
+ * stored configuration
+ * generation
+ * generation of the last stored configuration
+ * info (CFDictionary)
+ * key = xpc_connection_t [CFData]
+ * val = [CFData] (process name, last push'd, last ack'd)
+ * inSync_NO, inSync_YES
+ * count of client connections that have ack'd a configuration that
+ * are (or are not) in sync with the last stored generation#
+*/
+typedef struct {
+ CFDataRef data;
+ uint64_t generation;
+ CFMutableDictionaryRef info;
+ int inSync_NO; // ack'ing clients not in sync w/generation
+ int inSync_YES; // ack'ing clients in sync w/generation
+} libSC_info_server_t;
+
+
+__BEGIN_DECLS
+
+// Global server info SPIs
+
+void
+_libSC_info_server_init (
+ libSC_info_server_t *server_info
+ );
+
+Boolean
+_libSC_info_server_in_sync (
+ libSC_info_server_t *server_info
+ );
+
+void
+_libSC_info_server_set_data (
+ libSC_info_server_t *server_info,
+ CFDataRef data,
+ uint64_t generation
+ );
+
+// Per-session server info SPIs
+
+void
+_libSC_info_server_open (
+ libSC_info_server_t *server_info,
+ xpc_connection_t c
+ );
+
+CFDataRef
+_libSC_info_server_get_data (
+ libSC_info_server_t *server_info,
+ xpc_connection_t c,
+ uint64_t *generation
+ );
+
+Boolean
+_libSC_info_server_acknowledged (
+ libSC_info_server_t *server_info,
+ xpc_connection_t c,
+ uint64_t generation
+ );
+
+Boolean
+_libSC_info_server_close (
+ libSC_info_server_t *server_info,
+ xpc_connection_t c
+ );
+
+__END_DECLS
+
+#endif // _LIBSYSTEMCONFIGURATION_SERVER_H