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Make asyncMap to prevent from race-condition #1492
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Original file line number | Diff line number | Diff line change |
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@@ -1,15 +1,13 @@ | ||
import Foundation | ||
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public extension Array { | ||
public extension Array where Element: Sendable { | ||
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func parallelMap<T>(transform: (Element) -> T) -> [T] { | ||
var result = ContiguousArray<T?>(repeating: nil, count: count) | ||
return result.withUnsafeMutableBufferPointer { buffer in | ||
DispatchQueue.concurrentPerform(iterations: buffer.count) { idx in | ||
buffer[idx] = transform(self[idx]) | ||
} | ||
return buffer.map { $0! } | ||
} | ||
func parallelMap<T>(transform: @Sendable (Element) -> T) -> [T] { | ||
var buffer = ContiguousArray<T?>(repeating: nil, count: count) | ||
DispatchQueue.concurrentPerform(iterations: count) { idx in | ||
buffer[idx] = transform(self[idx]) | ||
} | ||
return buffer.map { $0! } | ||
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There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. tab/space is not unified |
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} | ||
} | ||
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Original file line number | Diff line number | Diff line change |
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@@ -89,12 +89,13 @@ public class Glob: Collection { | |
} | ||
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let patterns = behavior.supportsGlobstar ? expandGlobstar(pattern: adjustedPattern) : [adjustedPattern] | ||
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let isIncludingFiles = includeFiles | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. This closure made |
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#if os(macOS) | ||
paths = patterns.parallelMap { paths(usingPattern: $0, includeFiles: includeFiles) }.flatMap { $0 } | ||
paths = patterns.parallelMap { paths(usingPattern: $0, includeFiles: isIncludingFiles) }.flatMap { $0 } | ||
#else | ||
// Parallel invocations of Glob on Linux seems to be causing unexpected crashes | ||
paths = patterns.map { paths(usingPattern: $0, includeFiles: includeFiles) }.flatMap { $0 } | ||
paths = patterns.map { paths(usingPattern: $0, includeFiles: isIncludingFiles) }.flatMap { $0 } | ||
#endif | ||
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paths = Array(Set(paths)).sorted { lhs, rhs in | ||
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This implementation is dangerous, it may cause a race-condition...