configd-1061.0.2.tar.gz

[apple/configd.git] / SystemConfiguration.fproj / SCDCache.c

diff --git a/SystemConfiguration.fproj/SCDCache.c b/SystemConfiguration.fproj/SCDCache.c
new file mode 100644 (file)
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+++ b/SystemConfiguration.fproj/SCDCache.c
@@ -0,0 +1,152 @@
+/*
+ * Copyright (c) 2018 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@
+ */
+
+/*
+ * Modification History
+ *
+ * Oct 1, 2018 Allan Nathanson <ajn@apple.com>
+ * - initial revision
+ */
+
+
+#ifdef SC_LOG_HANDLE
+#include <os/log.h>
+os_log_t       SC_LOG_HANDLE(void);
+#endif //SC_LOG_HANDLE
+
+#include "SCDynamicStoreInternal.h"
+
+
+Boolean
+_SCDynamicStoreCacheIsActive(SCDynamicStoreRef store)
+{
+       SCDynamicStorePrivateRef        storePrivate    = (SCDynamicStorePrivateRef)store;
+
+       if (store == NULL) {
+               // sorry, you must provide a session
+               _SCErrorSet(kSCStatusNoStoreSession);
+               return FALSE;
+       }
+
+       return storePrivate->cache_active;
+}
+
+
+static void
+__SCDynamicStoreCacheRelease(SCDynamicStoreRef store)
+{
+       SCDynamicStorePrivateRef        storePrivate    = (SCDynamicStorePrivateRef)store;
+
+       if (storePrivate->cached_keys != NULL) {
+               CFRelease(storePrivate->cached_keys);
+               storePrivate->cached_keys = NULL;
+       }
+       if (storePrivate->cached_set != NULL) {
+               CFRelease(storePrivate->cached_set);
+               storePrivate->cached_set = NULL;
+       }
+       if (storePrivate->cached_removals != NULL) {
+               CFRelease(storePrivate->cached_removals);
+               storePrivate->cached_removals = NULL;
+       }
+       if (storePrivate->cached_notifys != NULL) {
+               CFRelease(storePrivate->cached_notifys);
+               storePrivate->cached_notifys = NULL;
+       }
+
+       return;
+}
+
+
+Boolean
+_SCDynamicStoreCacheOpen(SCDynamicStoreRef store)
+{
+       SCDynamicStorePrivateRef        storePrivate    = (SCDynamicStorePrivateRef)store;
+
+       if (store == NULL) {
+               // sorry, you must provide a session
+               _SCErrorSet(kSCStatusNoStoreSession);
+               return FALSE;
+       }
+
+       __SCDynamicStoreCacheRelease(store);    // if we are already using the cache, start clean
+       storePrivate->cache_active = TRUE;
+
+       return TRUE;
+}
+
+
+Boolean
+_SCDynamicStoreCacheCommitChanges(SCDynamicStoreRef store)
+{
+       Boolean                         ok              = TRUE;
+       SCDynamicStorePrivateRef        storePrivate    = (SCDynamicStorePrivateRef)store;
+
+       if (store == NULL) {
+               // sorry, you must provide a session
+               _SCErrorSet(kSCStatusNoStoreSession);
+               return FALSE;
+       }
+
+       if (!storePrivate->cache_active) {
+               // if not using the cache
+               _SCErrorSet(kSCStatusFailed);
+               return FALSE;
+       }
+
+       if ((storePrivate->cached_set != NULL) ||
+           (storePrivate->cached_removals != NULL) ||
+           (storePrivate->cached_notifys != NULL)) {
+               ok = SCDynamicStoreSetMultiple(store,
+                                              storePrivate->cached_set,
+                                              storePrivate->cached_removals,
+                                              storePrivate->cached_notifys);
+               __SCDynamicStoreCacheRelease(store);
+       }
+
+       return ok;
+}
+
+
+Boolean
+_SCDynamicStoreCacheClose(SCDynamicStoreRef store)
+{
+       SCDynamicStorePrivateRef        storePrivate    = (SCDynamicStorePrivateRef)store;
+
+       if (store == NULL) {
+               // sorry, you must provide a session
+               _SCErrorSet(kSCStatusNoStoreSession);
+               return FALSE;
+       }
+
+       if (!storePrivate->cache_active) {
+               // if not using the cache
+               _SCErrorSet(kSCStatusFailed);
+               return FALSE;
+       }
+
+       __SCDynamicStoreCacheRelease(store);
+       storePrivate->cache_active = FALSE;
+
+       return TRUE;
+}