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Move the event mask into a platform-neutral product
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`InotifyEventMask` took its bits from the C header, so nothing that
imported it could build outside Linux. The new `InotifyMask` product
spells out the kernel constants instead; a Linux test compares each
of them with the header. `Inotify` re-exports the module, so
existing code is unaffected.
This commit is contained in:
T. R. Bernstein
2026-09-14 00:13:19 +02:00
parent c79691cb6f
commit 442053eae2
6 changed files with 94 additions and 48 deletions
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Sources/Inotify/Exports.swift
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// The mask lives in its own module so that it is usable off Linux; users
// of `Inotify` keep seeing it as before.
@_exported import InotifyMask
Sources/Inotify/InotifyEventMask.swift
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import CInotify
public struct InotifyEventMask: OptionSet, Sendable, Hashable {
public let rawValue: CUnsignedInt
public init(rawValue: UInt32) {
self.rawValue = rawValue
}
// MARK: - Watchable Events
public static let access = InotifyEventMask(rawValue: CUnsignedInt(IN_ACCESS))
public static let attrib = InotifyEventMask(rawValue: CUnsignedInt(IN_ATTRIB))
public static let closeWrite = InotifyEventMask(rawValue: CUnsignedInt(IN_CLOSE_WRITE))
public static let closeNoWrite = InotifyEventMask(rawValue: CUnsignedInt(IN_CLOSE_NOWRITE))
public static let create = InotifyEventMask(rawValue: CUnsignedInt(IN_CREATE))
public static let delete = InotifyEventMask(rawValue: CUnsignedInt(IN_DELETE))
public static let deleteSelf = InotifyEventMask(rawValue: CUnsignedInt(IN_DELETE_SELF))
public static let modify = InotifyEventMask(rawValue: CUnsignedInt(IN_MODIFY))
public static let moveSelf = InotifyEventMask(rawValue: CUnsignedInt(IN_MOVE_SELF))
public static let movedFrom = InotifyEventMask(rawValue: CUnsignedInt(IN_MOVED_FROM))
public static let movedTo = InotifyEventMask(rawValue: CUnsignedInt(IN_MOVED_TO))
public static let open = InotifyEventMask(rawValue: CUnsignedInt(IN_OPEN))
// MARK: - Combinations
public static let move: InotifyEventMask = [.movedFrom, .movedTo]
public static let close: InotifyEventMask = [.closeWrite, .closeNoWrite]
public static let allEvents: InotifyEventMask = [
.access, .attrib, .closeWrite, .closeNoWrite,
.create, .delete, .deleteSelf, .modify,
.moveSelf, .movedFrom, .movedTo, .open
]
// MARK: - Watch Flags
public static let dontFollow = InotifyEventMask(rawValue: CUnsignedInt(IN_DONT_FOLLOW))
public static let onlyDir = InotifyEventMask(rawValue: CUnsignedInt(IN_ONLYDIR))
public static let oneShot = InotifyEventMask(rawValue: CUnsignedInt(IN_ONESHOT))
// MARK: - Kernel-Only Flags
public static let isDir = InotifyEventMask(rawValue: CUnsignedInt(IN_ISDIR))
public static let ignored = InotifyEventMask(rawValue: CUnsignedInt(IN_IGNORED))
public static let queueOverflow = InotifyEventMask(rawValue: CUnsignedInt(IN_Q_OVERFLOW))
public static let unmount = InotifyEventMask(rawValue: CUnsignedInt(IN_UNMOUNT))
}
Sources/InotifyMask/InotifyEventMask.swift
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/// The events and flags of an inotify watch or event, as bits.
///
/// The values are the constants of the Linux `<sys/inotify.h>` header,
/// which are part of the kernel's stable interface. Spelling them out here
/// keeps this module free of the C header, so it builds on every platform
/// and lets code that only stores or compares masks be tested off Linux.
public struct InotifyEventMask: OptionSet, Sendable, Hashable {
public let rawValue: UInt32
public init(rawValue: UInt32) {
self.rawValue = rawValue
}
// MARK: - Watchable Events
public static let access = InotifyEventMask(rawValue: 0x0000_0001)
public static let modify = InotifyEventMask(rawValue: 0x0000_0002)
public static let attrib = InotifyEventMask(rawValue: 0x0000_0004)
public static let closeWrite = InotifyEventMask(rawValue: 0x0000_0008)
public static let closeNoWrite = InotifyEventMask(rawValue: 0x0000_0010)
public static let open = InotifyEventMask(rawValue: 0x0000_0020)
public static let movedFrom = InotifyEventMask(rawValue: 0x0000_0040)
public static let movedTo = InotifyEventMask(rawValue: 0x0000_0080)
public static let create = InotifyEventMask(rawValue: 0x0000_0100)
public static let delete = InotifyEventMask(rawValue: 0x0000_0200)
public static let deleteSelf = InotifyEventMask(rawValue: 0x0000_0400)
public static let moveSelf = InotifyEventMask(rawValue: 0x0000_0800)
// MARK: - Combinations
public static let move: InotifyEventMask = [.movedFrom, .movedTo]
public static let close: InotifyEventMask = [.closeWrite, .closeNoWrite]
public static let allEvents: InotifyEventMask = [
.access, .attrib, .closeWrite, .closeNoWrite,
.create, .delete, .deleteSelf, .modify,
.moveSelf, .movedFrom, .movedTo, .open,
]
// MARK: - Watch Flags
public static let onlyDir = InotifyEventMask(rawValue: 0x0100_0000)
public static let dontFollow = InotifyEventMask(rawValue: 0x0200_0000)
public static let oneShot = InotifyEventMask(rawValue: 0x8000_0000)
// MARK: - Kernel-Only Flags
public static let unmount = InotifyEventMask(rawValue: 0x0000_2000)
public static let queueOverflow = InotifyEventMask(rawValue: 0x0000_4000)
public static let ignored = InotifyEventMask(rawValue: 0x0000_8000)
public static let isDir = InotifyEventMask(rawValue: 0x4000_0000)
}