X-Git-Url: https://git.saurik.com/apple/configd.git/blobdiff_plain/3b56ad6b79c967ddbd4a0e31f92dc3e6cef3961e..afb191091d343a5b396de690cd1432fca238adc9:/SystemConfiguration.fproj/SCDCache.c

diff --git a/SystemConfiguration.fproj/SCDCache.c b/SystemConfiguration.fproj/SCDCache.c
new file mode 100644
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+++ b/SystemConfiguration.fproj/SCDCache.c
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+/*
+ * 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;
+}