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Process.scala
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Process.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
package io
package process
sealed trait Process[F[_]] {
def isAlive: F[Boolean]
/** Fiber blocks until the process exits, then returns the exit value.
* If the process has already exited then the exit value is available immediately.
*/
def exitValue: F[Int]
/** A `Pipe` that writes to `stdin` of the process. The resulting stream should be compiled
* at most once, and interrupting or otherwise canceling a write-in-progress may kill the process.
*/
def stdin: Pipe[F, Byte, Nothing]
/** A `Stream` that reads from `stdout` of the process. This stream should be compiled at most once,
* and interrupting or otherwise canceling a read-in-progress may kill the process.
*/
def stdout: Stream[F, Byte]
/** A `Stream` that reads from `stderr` of the process. This stream should be compiled at most once,
* and interrupting or otherwise canceling a read-in-progress may kill the process.
*/
def stderr: Stream[F, Byte]
}
private[fs2] trait UnsealedProcess[F[_]] extends Process[F]