42 lines
2.1 KiB
Swift
42 lines
2.1 KiB
Swift
// tool.container · Container · ensureAll / probe / repair / normalize · —
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// 原语: 探测 · 进程内 · tier 1
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// Primitive: probe · in-process · tier 1
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//
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// [zh] 容器读写正常化（数据容器自检 + 修复）
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// 把数据容器里每一个工具会用到的目录逐个解析、创建、然后真的建文件写一遍、fsync、读回、比对、删除。之前「容器内读写失败」的四个真实原因都在这里被点名：目录只是 URL 不是目录、isWritableFile
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// 是坏探针、容器 UUID 会变、Library/Preferences 归 cfprefsd。
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//
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// [en] Container read/write normalisation (data container self-test and repair)
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// Resolves every directory the tooling uses inside the data container, creates it, then actually
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// creates a file, writes, fsyncs, reads back, compares and deletes. The four real reasons container
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// writes failed before are all named here: a URL is not a directory, isWritableFile is a bad probe,
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// container UUIDs change, and Library/Preferences belongs to cfprefsd.
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// ── 判别 / oracle ──
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// 跑完会留下 container_health.txt。修复动作是幂等的，每次启动都会再跑一遍。
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import Foundation
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// ── byte helpers — verbatim from Cinder27 Sources/Kit.swift ──
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enum B {
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static func be16(_ v: UInt16) -> [UInt8] { [UInt8(v >> 8 & 0xff), UInt8(v & 0xff)] }
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static func le16(_ v: UInt16) -> [UInt8] { [UInt8(v & 0xff), UInt8(v >> 8 & 0xff)] }
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static func be32(_ v: UInt32) -> [UInt8] {
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[UInt8(v >> 24 & 0xff), UInt8(v >> 16 & 0xff), UInt8(v >> 8 & 0xff), UInt8(v & 0xff)]
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}
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static func le32(_ v: UInt32) -> [UInt8] {
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[UInt8(v & 0xff), UInt8(v >> 8 & 0xff), UInt8(v >> 16 & 0xff), UInt8(v >> 24 & 0xff)]
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}
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static func be64(_ v: UInt64) -> [UInt8] {
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(0..<8).map { UInt8((v >> (56 - UInt64($0) * 8)) & 0xff) }
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}
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static func le64(_ v: UInt64) -> [UInt8] {
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(0..<8).map { UInt8((v >> (UInt64($0) * 8)) & 0xff) }
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}
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static func both16(_ v: UInt16) -> [UInt8] { le16(v) + be16(v) }
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static func both32(_ v: UInt32) -> [UInt8] { le32(v) + be32(v) }
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static func ascii(_ s: String) -> [UInt8] { Array(s.utf8) }
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}
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