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JdkUnixSockets.scala
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JdkUnixSockets.scala
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/*
* Copyright (c) 2013 Functional Streams for Scala
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package fs2.io.net.unixsocket
import cats.effect.kernel.{Async, Resource}
import cats.effect.syntax.all._
import fs2.io.file.Files
import java.net.{StandardProtocolFamily, UnixDomainSocketAddress}
import java.nio.channels.{ServerSocketChannel, SocketChannel}
object JdkUnixSockets {
def supported: Boolean = StandardProtocolFamily.values.size > 2
def forAsyncAndFiles[F[_]: Async: Files]: UnixSockets[F] =
new JdkUnixSocketsImpl[F]
def forAsync[F[_]](implicit F: Async[F]): UnixSockets[F] =
forAsyncAndFiles(F, Files.forAsync[F])
}
private[unixsocket] class JdkUnixSocketsImpl[F[_]: Files](implicit F: Async[F])
extends UnixSockets.AsyncUnixSockets[F] {
protected def openChannel(address: UnixSocketAddress) =
Resource
.make(F.blocking(SocketChannel.open(StandardProtocolFamily.UNIX)))(ch =>
F.blocking(ch.close())
)
.evalTap { ch =>
F.blocking(ch.connect(UnixDomainSocketAddress.of(address.path)))
.cancelable(F.blocking(ch.close()))
}
protected def openServerChannel(address: UnixSocketAddress) =
Resource
.make(F.blocking(ServerSocketChannel.open(StandardProtocolFamily.UNIX)))(ch =>
F.blocking(ch.close())
)
.evalTap { sch =>
F.blocking(sch.bind(UnixDomainSocketAddress.of(address.path)))
.cancelable(F.blocking(sch.close()))
}
.map { sch =>
Resource.makeFull[F, SocketChannel] { poll =>
poll(F.blocking(sch.accept).cancelable(F.blocking(sch.close())))
}(ch => F.blocking(ch.close()))
}
}