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Merge pull request #9 from johnste/watch-config-file-changes
Add path watcher and set it up to watch the config file
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,59 @@ | ||
| // | ||
| // FNPathWatcher.swift | ||
| // Finicky | ||
| // | ||
| // Created by John Sterling on 07/07/15. | ||
| // Copyright (c) 2015 John sterling. All rights reserved. | ||
| // | ||
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| import Foundation | ||
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| public class FNPathWatcher { | ||
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| enum State { | ||
| case On, Off | ||
| } | ||
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| private let source: dispatch_source_t | ||
| private let descriptor: CInt | ||
| private var state: State = .Off | ||
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| /// Creates a folder monitor object with monitoring enabled. | ||
| public init(url: NSURL, handler: ()->Void) { | ||
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| state = .Off | ||
| descriptor = open(url.fileSystemRepresentation, O_EVTONLY) | ||
| let queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0) | ||
| source = dispatch_source_create( | ||
| DISPATCH_SOURCE_TYPE_VNODE, | ||
| UInt(descriptor), | ||
| DISPATCH_VNODE_DELETE | DISPATCH_VNODE_WRITE | DISPATCH_VNODE_EXTEND | DISPATCH_VNODE_ATTRIB | DISPATCH_VNODE_LINK | DISPATCH_VNODE_RENAME | DISPATCH_VNODE_REVOKE, | ||
| queue | ||
| ) | ||
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| dispatch_source_set_event_handler(source, handler) | ||
| //dispatch_source_set_cancel_handler({}) | ||
| start() | ||
| } | ||
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| /// Starts sending notifications if currently stopped | ||
| public func start() { | ||
| if state == .Off { | ||
| state = .On | ||
| dispatch_resume(source) | ||
| } | ||
| } | ||
|
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| /// Stops sending notifications if currently enabled | ||
| public func stop() { | ||
| if state == .On { | ||
| state = .Off | ||
| dispatch_suspend(source) | ||
| } | ||
| } | ||
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| deinit { | ||
| close(descriptor) | ||
| dispatch_source_cancel(source) | ||
| } | ||
| } |