/// Copyright 2014 Google Inc. All rights reserved.
///
/// Licensed under the Apache License, Version 2.0 (the "License");
/// you may not use this file except in compliance with the License.
/// You may obtain a copy of the License at
///
///    http://www.apache.org/licenses/LICENSE-2.0
///
///    Unless required by applicable law or agreed to in writing, software
///    distributed under the License is distributed on an "AS IS" BASIS,
///    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
///    See the License for the specific language governing permissions and
///    limitations under the License.

#include "SNTKernelCommon.h"

@class SNTNotificationMessage;

/// Manages the connection between daemon and kernel.
@interface SNTDriverManager : NSObject

/// Handles requests from the kernel using the given block.
/// @note Loops indefinitely until either the callback block returns @c NO or there is an error
/// trying to read data from the data queue.
- (void)listenWithBlock:(BOOL (^)(santa_message_t message))callback;

/// Sends a response to a query back to the kernel.
- (kern_return_t)postToKernelAction:(santa_action_t)action forVnodeID:(uint64_t)vnodeId;

/// Get the number of binaries in the kernel's cache.
- (uint64_t)cacheCount;

/// Flush the kernel's binary cache.
- (BOOL)flushCache;

@end