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  /*
   *  Licensed to the Apache Software Foundation (ASF) under one or more
   *  contributor license agreements.  See the NOTICE file distributed with
   *  this work for additional information regarding copyright ownership.
   *  The ASF licenses this file to You 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
   *
   *      http://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.
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 package org.apache.tomcat.jni;

Procattr

Author(s):
Mladen Turk
Version:
$Revision: 515 $, $Date: 2008-03-17 22:02:23 +0100 (Mon, 17 Mar 2008) $
 
 
 public class Procattr {

    
Create and initialize a new procattr variable

Parameters:
cont The pool to use
Returns:
The newly created procattr.
 
     public static native long create(long cont)
         throws Error;

    
Determine if any of stdin, stdout, or stderr should be linked to pipes when starting a child process.

Parameters:
attr The procattr we care about.
in Should stdin be a pipe back to the parent?
out Should stdout be a pipe back to the parent?
err Should stderr be a pipe back to the parent?
 
     public static native int ioSet(long attrint inint outint err);
    
Set the child_in and/or parent_in values to existing apr_file_t values.
This is NOT a required initializer function. This is useful if you have already opened a pipe (or multiple files) that you wish to use, perhaps persistently across multiple process invocations - such as a log file. You can save some extra function calls by not creating your own pipe since this creates one in the process space for you.

Parameters:
attr The procattr we care about.
in apr_file_t value to use as child_in. Must be a valid file.
parent apr_file_t value to use as parent_in. Must be a valid file.
 
     public static native int childInSet(long attrlong inlong parent);

    
Set the child_out and parent_out values to existing apr_file_t values.
This is NOT a required initializer function. This is useful if you have already opened a pipe (or multiple files) that you wish to use, perhaps persistently across multiple process invocations - such as a log file.

Parameters:
attr The procattr we care about.
out apr_file_t value to use as child_out. Must be a valid file.
parent apr_file_t value to use as parent_out. Must be a valid file.
 
     public static native int childOutSet(long attrlong outlong parent);

    
Set the child_err and parent_err values to existing apr_file_t values.
This is NOT a required initializer function. This is useful if you have already opened a pipe (or multiple files) that you wish to use, perhaps persistently across multiple process invocations - such as a log file.

Parameters:
attr The procattr we care about.
err apr_file_t value to use as child_err. Must be a valid file.
parent apr_file_t value to use as parent_err. Must be a valid file.
 
     public static native int childErrSet(long attrlong errlong parent);

    
Set which directory the child process should start executing in.

Parameters:
attr The procattr we care about.
dir Which dir to start in. By default, this is the same dir as the parent currently resides in, when the createprocess call is made.
 
     public static native int dirSet(long attrString dir);

    
Set what type of command the child process will call.

Parameters:
attr The procattr we care about.
cmd The type of command. One of:
 APR_SHELLCMD     --  Anything that the shell can handle
 APR_PROGRAM      --  Executable program   (default)
 APR_PROGRAM_ENV  --  Executable program, copy environment
 APR_PROGRAM_PATH --  Executable program on PATH, copy env
 
    public static native int cmdtypeSet(long attrint cmd);

    
Determine if the child should start in detached state.

Parameters:
attr The procattr we care about.
detach Should the child start in detached state? Default is no.
    public static native int detachSet(long attrint detach);

    
Specify that apr_proc_create() should do whatever it can to report failures to the caller of apr_proc_create(), rather than find out in the child.

Parameters:
attr The procattr describing the child process to be created.
chk Flag to indicate whether or not extra work should be done to try to report failures to the caller.
This flag only affects apr_proc_create() on platforms where fork() is used. This leads to extra overhead in the calling process, but that may help the application handle such errors more gracefully.
    public static native int errorCheckSet(long attrint chk);

    
Determine if the child should start in its own address space or using the current one from its parent

Parameters:
attr The procattr we care about.
addrspace Should the child start in its own address space? Default is no on NetWare and yes on other platforms.
    public static native int addrspaceSet(long attrint addrspace);

    
Specify an error function to be called in the child process if APR encounters an error in the child prior to running the specified program.

Parameters:
attr The procattr describing the child process to be created.
pool The the pool to use.
o The Object to call in the child process.
At the present time, it will only be called from apr_proc_create() on platforms where fork() is used. It will never be called on other platforms, on those platforms apr_proc_create() will return the error in the parent process rather than invoke the callback in the now-forked child process.
    public static native void errfnSet(long attrlong poolObject o);

    
Set the username used for running process

Parameters:
attr The procattr we care about.
username The username used
password User password if needed. Password is needed on WIN32 or any other platform having APR_PROCATTR_USER_SET_REQUIRES_PASSWORD set.
    public static native int userSet(long attrString usernameString password);

    
Set the group used for running process

Parameters:
attr The procattr we care about.
groupname The group name used
    public static native int groupSet(long attrString groupname);
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