T. R. Bernstein
3c852a565c
The stream's element is now the enum InotifyEvent, and the struct that describes a change to a watched item is FileSystemEvent. A queue overflow was an event with descriptor -1 and an empty path that every consumer had to know about; as a case, the compiler makes them handle it. The enum is also where failed watches of a growing tree will be reported, since no call site can catch them.
33 lines
1.1 KiB
Swift
33 lines
1.1 KiB
Swift
import SystemPackage
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/// A change to a watched file or directory, as delivered by an ``Inotify``
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/// instance inside ``InotifyEvent/fileSystem(_:)``.
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public struct FileSystemEvent: Sendable, Hashable, CustomStringConvertible {
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public let watchDescriptor: Int32
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public let mask: InotifyEventMask
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public let cookie: UInt32
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public let path: FilePath
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/// Whether the event was produced by the library for an item that already
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/// existed when its directory became watched, rather than by the kernel.
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public let synthesized: Bool
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public var description: String {
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var parts = ["FileSystemEvent(wd: \(watchDescriptor), mask: \(mask), path: \"\(path)\""]
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if cookie != 0 { parts.append("cookie: \(cookie)") }
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return parts.joined(separator: ", ") + ")"
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}
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}
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extension FileSystemEvent {
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public init(from rawEvent: RawInotifyEvent, inDirectory path: String) {
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let dirPath = FilePath(path)
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self.init(
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watchDescriptor: rawEvent.watchDescriptor,
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mask: rawEvent.mask,
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cookie: rawEvent.cookie,
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path: dirPath.appending(rawEvent.name),
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synthesized: rawEvent.synthesized
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)
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}
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}
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