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feat: implement request using InpuStream on iOS
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112 changes: 112 additions & 0 deletions
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ios/Bridge/GomobileIPFS/Sources/InputStreamFromGo.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| // | ||
| // InputStreamFromGo.swift | ||
| // GomobileIPFS | ||
| // | ||
| // Created by Antoine Eddi on 19/01/2020. | ||
| // | ||
|
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| import Foundation | ||
| import Core | ||
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| public class InputStreamFromGoError: IPFSError { | ||
| private static var code: Int = 6 | ||
| private static var subdomain: String = "InputStreamFromGo" | ||
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| required init(_ description: String, _ optCause: NSError? = nil) { | ||
| super.init(description, optCause, InputStreamFromGoError.subdomain, InputStreamFromGoError.code) | ||
| } | ||
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| required init?(coder: NSCoder) { | ||
| super.init(coder: coder) | ||
| } | ||
| } | ||
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| public class InputStreamFromGo: InputStream { | ||
| private var _streamStatus: Stream.Status | ||
| private var _streamError: Error? | ||
| private weak var _delegate: StreamDelegate? | ||
| private var readCloser: CoreReadCloser | ||
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| init(_ readCloser: CoreReadCloser) { | ||
| self._streamStatus = .notOpen | ||
| self._streamError = nil | ||
| self.readCloser = readCloser | ||
| super.init(data: Data()) | ||
| } | ||
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| override public var hasBytesAvailable: Bool { | ||
| if self.streamStatus == .atEnd || self.streamStatus == .closed { | ||
| return false | ||
| } | ||
| return true | ||
| } | ||
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| override public var streamStatus: Stream.Status { | ||
| return _streamStatus | ||
| } | ||
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| override public var streamError: Error? { | ||
| return _streamError | ||
| } | ||
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| override public var delegate: StreamDelegate? { | ||
| get { | ||
| return _delegate | ||
| } | ||
| set { | ||
| _delegate = newValue | ||
| } | ||
| } | ||
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| override public func open() { | ||
| if self._streamStatus == .notOpen { | ||
| self._streamStatus = .open | ||
| } | ||
| } | ||
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| override public func close() { | ||
| if self._streamStatus != .closed { | ||
| self._streamStatus = .closed | ||
| try? self.readCloser.close() | ||
| } | ||
| } | ||
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| override public func read(_ buffer: UnsafeMutablePointer<UInt8>, maxLength len: Int) -> Int { | ||
| if self._streamStatus != .open { | ||
| self._streamError = InputStreamFromGoError("stream not opened (\(self._streamStatus))") | ||
| return -1 | ||
| } | ||
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| self._streamStatus = .reading | ||
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| // swiftlint:disable todo | ||
| // TODO: Use the buffer argument directly without making a copy. | ||
| // swiftlint:enable todo | ||
| let tmp: NSData? = NSMutableData(length: len) | ||
| var read: Int = 0 | ||
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| do { | ||
| try self.readCloser.read(tmp as Data?, n: &read) | ||
| } catch let err { | ||
| if err.localizedDescription == "EOF" { | ||
| self._streamStatus = .atEnd | ||
| return 0 | ||
| } | ||
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| self._streamStatus = .error | ||
| self._streamError = err | ||
| return -1 | ||
| } | ||
|
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| tmp!.getBytes(buffer, length: read) | ||
| self._streamStatus = .open | ||
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| return read | ||
| } | ||
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| override public func getBuffer( | ||
| _ buffer: UnsafeMutablePointer<UnsafeMutablePointer<UInt8>?>, | ||
| length len: UnsafeMutablePointer<Int>) -> Bool { | ||
| return false | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,31 @@ | ||
| // | ||
| // InputStreamToGo.swift | ||
| // GomobileIPFS | ||
| // | ||
| // Created by CI Agent on 20/01/2020. | ||
| // | ||
|
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| import Foundation | ||
| import Core | ||
|
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| public class InputStreamToGo: NSObject, CoreReaderProtocol { | ||
| private var inputStream: InputStream | ||
|
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| init(_ inputStream: InputStream) { | ||
| self.inputStream = inputStream | ||
| self.inputStream.open() | ||
| } | ||
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| public func read(_ buffer: Data?, n len: UnsafeMutablePointer<Int>?) throws { | ||
| var read: Int | ||
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| let bytes = UnsafeMutablePointer<UInt8>(OpaquePointer((buffer! as NSData).bytes)) | ||
| read = self.inputStream.read(bytes, maxLength: buffer!.count) | ||
| len?.initialize(to: read) | ||
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| if read == 0 && self.inputStream.streamStatus == .atEnd { | ||
| self.inputStream.close() | ||
| throw NSError(domain: "", code: 0, userInfo: ["NSLocalizedDescription": "EOF"]) | ||
| } | ||
| } | ||
| } |
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