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27 lines
630 B
Swift
27 lines
630 B
Swift
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import Foundation
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public protocol FileHandleReader {
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var availableData: Data { get }
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var fileDescriptor: Int32 { get }
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var pidOfConnectedProcess: Int32 { get }
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}
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public protocol FileHandleWriter {
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func write(_ data: Data)
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}
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extension FileHandle: FileHandleReader, FileHandleWriter {
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public var pidOfConnectedProcess: Int32 {
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let pidPointer = UnsafeMutableRawPointer.allocate(byteCount: 4, alignment: 1)
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var len = socklen_t(MemoryLayout<Int32>.size)
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getsockopt(fileDescriptor, SOCK_STREAM, LOCAL_PEERPID, pidPointer, &len)
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return pidPointer.load(as: Int32.self)
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}
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}
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