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feat: added a new mechanism for disk free space reader that potentially will take less CPU to make a read

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This commit is contained in:
Serhiy Mytrovtsiy
2025-04-26 19:13:39 +02:00
parent 2649d409c2
commit 42422ce530
1 changed files with 22 additions and 0 deletions
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22
Modules/Disk/readers.swift
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@@ -12,6 +12,7 @@
import Cocoa
import Kit
import IOKit.storage
import CoreServices
let kIONVMeSMARTUserClientTypeID = CFUUIDGetConstantUUIDWithBytes(nil,
0xAA, 0x0F, 0xA6, 0xF9,
@@ -38,6 +39,7 @@ internal class CapacityReader: Reader<Disks> {
private var SMART: Bool {
Store.shared.bool(key: "\(ModuleType.disk.stringValue)_SMART", defaultValue: true)
}
private var purgableSpace: [URL: (Date, Int64)] = [:]
public override func read() {
let keys: [URLResourceKey] = [.volumeNameKey]
@@ -96,6 +98,26 @@ internal class CapacityReader: Reader<Disks> {
}
private func freeDiskSpaceInBytes(_ path: URL) -> Int64 {
var stat = statfs()
if statfs(path.path, &stat) == 0 {
var purgeable: Int64 = 0
if self.purgableSpace[path] == nil {
let value = CSDiskSpaceGetRecoveryEstimate(path as NSURL)
purgeable = Int64(value)
self.purgableSpace[path] = (Date(), purgeable)
} else if let pair = self.purgableSpace[path] {
let delta = Date().timeIntervalSince(pair.0)
if delta > 60 {
let value = CSDiskSpaceGetRecoveryEstimate(path as NSURL)
purgeable = Int64(value)
self.purgableSpace[path] = (Date(), purgeable)
} else {
purgeable = pair.1
}
}
return (Int64(stat.f_bfree) * Int64(stat.f_bsize)) + Int64(purgeable)
}
do {
if let url = URL(string: path.absoluteString) {
let values = try url.resourceValues(forKeys: [.volumeAvailableCapacityForImportantUsageKey])