/**@class java.lang.Process @extends java.lang.Object The {@link java.lang.ProcessBuilder#start()} and {@link java.lang.Runtime#exec(String[],String[],File) java.lang.Runtime.exec} methods create a native process and return an instance of a subclass of {@code Process} that can be used to control the process and obtain information about it. The class {@code Process} provides methods for performing input from the process, performing output to the process, waiting for the process to complete, checking the exit status of the process, and destroying (killing) the process. <p>The methods that create processes may not work well for special processes on certain native platforms, such as native windowing processes, daemon processes, Win16/DOS processes on Microsoft Windows, or shell scripts. <p>By default, the created subprocess does not have its own terminal or console. All its standard I/O (i.e. stdin, stdout, stderr) operations will be redirected to the parent process, where they can be accessed via the streams obtained using the methods {@link #getOutputStream}(), {@link #getInputStream}(), and {@link #getErrorStream}(). The parent process uses these streams to feed input to and get output from the subprocess. Because some native platforms only provide limited buffer size for standard input and output streams, failure to promptly write the input stream or read the output stream of the subprocess may cause the subprocess to block, or even deadlock. <p>Where desired, <a href="ProcessBuilder.html#redirect-input"> subprocess I/O can also be redirected</a> using methods of the {@link java.lang.ProcessBuilder} class. <p>The subprocess is not killed when there are no more references to the {@code Process} object, but rather the subprocess continues executing asynchronously. <p>There is no requirement that a process represented by a {@code Process} object execute asynchronously or concurrently with respect to the Java process that owns the {@code Process} object. <p>As of 1.5, {@link java.lang.ProcessBuilder#start()} is the preferred way to create a {@code Process}. @since JDK1.0 */ var Process = { /**Returns the output stream connected to the normal input of the subprocess. Output to the stream is piped into the standard input of the process represented by this {@code Process} object. <p>If the standard input of the subprocess has been redirected using {@link java.lang.ProcessBuilder#redirectInput(Redirect) java.lang.ProcessBuilder.redirectInput} then this method will return a <a href="ProcessBuilder.html#redirect-input">null output stream</a>. <p>Implementation note: It is a good idea for the returned output stream to be buffered. @return {Object {java.io.OutputStream}} the output stream connected to the normal input of the subprocess */ getOutputStream : function( ) {}, /**Returns the input stream connected to the normal output of the subprocess. The stream obtains data piped from the standard output of the process represented by this {@code Process} object. <p>If the standard output of the subprocess has been redirected using {@link java.lang.ProcessBuilder#redirectOutput(Redirect) java.lang.ProcessBuilder.redirectOutput} then this method will return a <a href="ProcessBuilder.html#redirect-output">null input stream</a>. <p>Otherwise, if the standard error of the subprocess has been redirected using {@link java.lang.ProcessBuilder#redirectErrorStream(boolean) java.lang.ProcessBuilder.redirectErrorStream} then the input stream returned by this method will receive the merged standard output and the standard error of the subprocess. <p>Implementation note: It is a good idea for the returned input stream to be buffered. @return {Object {java.io.InputStream}} the input stream connected to the normal output of the subprocess */ getInputStream : function( ) {}, /**Returns the input stream connected to the error output of the subprocess. The stream obtains data piped from the error output of the process represented by this {@code Process} object. <p>If the standard error of the subprocess has been redirected using {@link java.lang.ProcessBuilder#redirectError(Redirect) java.lang.ProcessBuilder.redirectError} or {@link java.lang.ProcessBuilder#redirectErrorStream(boolean) java.lang.ProcessBuilder.redirectErrorStream} then this method will return a <a href="ProcessBuilder.html#redirect-output">null input stream</a>. <p>Implementation note: It is a good idea for the returned input stream to be buffered. @return {Object {java.io.InputStream}} the input stream connected to the error output of the subprocess */ getErrorStream : function( ) {}, /**Causes the current thread to wait, if necessary, until the process represented by this {@code Process} object has terminated. This method returns immediately if the subprocess has already terminated. If the subprocess has not yet terminated, the calling thread will be blocked until the subprocess exits. @return {Number} the exit value of the subprocess represented by this {@code Process} object. By convention, the value {@code 0} indicates normal termination. @throws InterruptedException if the current thread is {@linkplain Thread#interrupt() interrupted} by another thread while it is waiting, then the wait is ended and an {@link InterruptedException} is thrown. */ waitFor : function( ) {}, /**Causes the current thread to wait, if necessary, until the subprocess represented by this {@code Process} object has terminated, or the specified waiting time elapses. <p>If the subprocess has already terminated then this method returns immediately with the value {@code true}. If the process has not terminated and the timeout value is less than, or equal to, zero, then this method returns immediately with the value {@code false}. <p>The default implementation of this methods polls the {@code exitValue} to check if the process has terminated. Concrete implementations of this class are strongly encouraged to override this method with a more efficient implementation. @param {Number} timeout the maximum time to wait @param {Object {TimeUnit}} unit the time unit of the {@code timeout} argument @return {Boolean} {@code true} if the subprocess has exited and {@code false} if the waiting time elapsed before the subprocess has exited. @throws InterruptedException if the current thread is interrupted while waiting. @throws NullPointerException if unit is null @since 1.8 */ waitFor : function( ) {}, /**Returns the exit value for the subprocess. @return {Number} the exit value of the subprocess represented by this {@code Process} object. By convention, the value {@code 0} indicates normal termination. @throws IllegalThreadStateException if the subprocess represented by this {@code Process} object has not yet terminated */ exitValue : function( ) {}, /**Kills the subprocess. Whether the subprocess represented by this {@code Process} object is forcibly terminated or not is implementation dependent. */ destroy : function( ) {}, /**Kills the subprocess. The subprocess represented by this {@code Process} object is forcibly terminated. <p>The default implementation of this method invokes {@link #destroy} and so may not forcibly terminate the process. Concrete implementations of this class are strongly encouraged to override this method with a compliant implementation. Invoking this method on {@code Process} objects returned by {@link java.lang.ProcessBuilder#start} and {@link java.lang.Runtime#exec} will forcibly terminate the process. <p>Note: The subprocess may not terminate immediately. i.e. {@code isAlive()} may return true for a brief period after {@code destroyForcibly()} is called. This method may be chained to {@code waitFor()} if needed. @return {Object {java.lang.Process}} the {@code Process} object representing the subprocess to be forcibly destroyed. @since 1.8 */ destroyForcibly : function( ) {}, /**Tests whether the subprocess represented by this {@code Process} is alive. @return {Boolean} {@code true} if the subprocess represented by this {@code Process} object has not yet terminated. @since 1.8 */ isAlive : function( ) {}, };