wehub-resource-sync
101 lines
3.6 KiB
Swift
101 lines
3.6 KiB
Swift
//===----------------------------------------------------------------------===//
|
|
// Copyright © 2025-2026 Apple Inc. and the Containerization project authors.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// https://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
import Foundation
|
|
|
|
package enum BindError: Error, CustomStringConvertible {
|
|
case recvMarshalFailure(type: String, field: String)
|
|
case sendMarshalFailure(type: String, field: String)
|
|
|
|
package var description: String {
|
|
switch self {
|
|
case .recvMarshalFailure(let type, let field):
|
|
return "failed to unmarshal \(type).\(field)"
|
|
case .sendMarshalFailure(let type, let field):
|
|
return "failed to marshal \(type).\(field)"
|
|
}
|
|
}
|
|
}
|
|
|
|
package protocol Bindable: Sendable {
|
|
static var size: Int { get }
|
|
func appendBuffer(_ buffer: inout [UInt8], offset: Int) throws -> Int
|
|
mutating func bindBuffer(_ buffer: inout [UInt8], offset: Int) throws -> Int
|
|
}
|
|
|
|
extension ArraySlice<UInt8> {
|
|
package func hexEncodedString() -> String {
|
|
self.map { String(format: "%02hhx", $0) }.joined()
|
|
}
|
|
}
|
|
|
|
extension [UInt8] {
|
|
package func hexEncodedString() -> String {
|
|
self.map { String(format: "%02hhx", $0) }.joined()
|
|
}
|
|
|
|
package mutating func bind<T>(as type: T.Type, offset: Int = 0, size: Int? = nil) -> UnsafeMutablePointer<T>? {
|
|
guard self.count >= (size ?? MemoryLayout<T>.size) + offset else {
|
|
return nil
|
|
}
|
|
|
|
return self.withUnsafeMutableBytes { $0.baseAddress?.advanced(by: offset).assumingMemoryBound(to: T.self) }
|
|
}
|
|
|
|
package mutating func copyIn<T>(as type: T.Type, value: T, offset: Int = 0, size: Int? = nil) -> Int? {
|
|
let size = size ?? MemoryLayout<T>.size
|
|
guard self.count >= size + offset else {
|
|
return nil
|
|
}
|
|
|
|
return self.withUnsafeMutableBytes {
|
|
$0.baseAddress?.advanced(by: offset).assumingMemoryBound(to: T.self).pointee = value
|
|
return offset + MemoryLayout<T>.size
|
|
}
|
|
}
|
|
|
|
package func copyOut<T>(as type: T.Type, offset: Int = 0, size: Int? = nil) -> (Int, T)? {
|
|
guard self.count >= (size ?? MemoryLayout<T>.size) + offset else {
|
|
return nil
|
|
}
|
|
|
|
return self.withUnsafeBytes {
|
|
guard let value = $0.baseAddress?.advanced(by: offset).assumingMemoryBound(to: T.self).pointee else {
|
|
return nil
|
|
}
|
|
return (offset + MemoryLayout<T>.size, value)
|
|
}
|
|
}
|
|
|
|
package mutating func copyIn(buffer: [UInt8], offset: Int = 0) -> Int? {
|
|
guard offset + buffer.count <= self.count else {
|
|
return nil
|
|
}
|
|
|
|
self[offset..<offset + buffer.count] = buffer[0..<buffer.count]
|
|
return offset + buffer.count
|
|
}
|
|
|
|
package func copyOut(buffer: inout [UInt8], offset: Int = 0) -> Int? {
|
|
guard offset + buffer.count <= self.count else {
|
|
return nil
|
|
}
|
|
|
|
buffer[0..<buffer.count] = self[offset..<offset + buffer.count]
|
|
return offset + buffer.count
|
|
}
|
|
}
|