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GH-450 Sync all access to root

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This commit is contained in:
Tae Won Ha 2017-05-14 18:23:57 +02:00
parent c542113415
commit 71cd86327a
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GPG Key ID: E40743465B5B8B44
1 changed files with 17 additions and 17 deletions
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34
VimR/FileItemUtils.swift
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@ -111,24 +111,24 @@ class FileItemUtils {
/// When at least this much of non-directory and visible files are scanned, they are emitted.
fileprivate let emitChunkSize = 1000
fileprivate let scanDispatchQueue = DispatchQueue.global(qos: .userInitiated)
fileprivate var spinLock = OS_SPINLOCK_INIT
fileprivate let lock = NSRecursiveLock()
fileprivate func syncAddChildren(_ fn: () -> Void) {
OSSpinLockLock(&spinLock)
fn()
OSSpinLockUnlock(&spinLock)
fileprivate func synced<T>(_ fn: () -> T) -> T {
lock.lock()
defer { lock.unlock() }
return fn()
}
fileprivate func fileItem(for pathComponents: [String], root: FileItem, create: Bool = true) -> FileItem? {
let result = pathComponents.dropFirst().reduce(root) { (resultItem, childName) -> FileItem? in
guard let parent = resultItem else {
return nil
return synced {
pathComponents.dropFirst().reduce(root) { (resultItem, childName) -> FileItem? in
guard let parent = resultItem else {
return nil
}
return child(withName: childName, ofParent: parent, create: true)
}
return child(withName: childName, ofParent: parent, create: true)
}
return result
}
fileprivate func fileItem(for url: URL, root: FileItem, create: Bool = true) -> FileItem? {
@ -155,7 +155,7 @@ fileprivate func child(withName name: String, ofParent parent: FileItem, create:
}
let child = FileItem(childUrl)
syncAddChildren { parent.children.append(child) }
synced { parent.children.append(child) }
return child
}
@ -165,14 +165,14 @@ fileprivate func child(withName name: String, ofParent parent: FileItem, create:
fileprivate func scanChildren(_ item: FileItem, sorted: Bool = false) {
let children = FileUtils.directDescendants(of: item.url).map(FileItem.init)
syncAddChildren {
synced {
if sorted {
item.children = children.sorted()
} else {
item.children = children
}
}
item.childrenScanned = true
item.needsScanChildren = false
item.childrenScanned = true
item.needsScanChildren = false
}
}