/*
* 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.
*/
package org.apache.tomcat.jni;
/** Procattr
*
* @author Mladen Turk
*/
public class Procattr {
/**
* Create and initialize a new procattr variable
* @param cont The pool to use
* @return 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.
* @param attr The procattr we care about.
* @param in Should stdin be a pipe back to the parent?
* @param out Should stdout be a pipe back to the parent?
* @param err Should stderr be a pipe back to the parent?
*/
public static native int ioSet(long attr, int in, int out, int err);
/**
* Set the child_in and/or parent_in values to existing apr_file_t values.
* <br>
* 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.
* @param attr The procattr we care about.
* @param in apr_file_t value to use as child_in. Must be a valid file.
* @param parent apr_file_t value to use as parent_in. Must be a valid file.
*/
public static native int childInSet(long attr, long in, long parent);
/**
* Set the child_out and parent_out values to existing apr_file_t values.
* <br>
* 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.
* @param attr The procattr we care about.
* @param out apr_file_t value to use as child_out. Must be a valid file.
* @param parent apr_file_t value to use as parent_out. Must be a valid file.
*/
public static native int childOutSet(long attr, long out, long parent);
/**
* Set the child_err and parent_err values to existing apr_file_t values.
* <br>
* 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.
* @param attr The procattr we care about.
* @param err apr_file_t value to use as child_err. Must be a valid file.
* @param parent apr_file_t value to use as parent_err. Must be a valid file.
*/
public static native int childErrSet(long attr, long err, long parent);
/**
* Set which directory the child process should start executing in.
* @param attr The procattr we care about.
* @param 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 attr, String dir);
/**
* Set what type of command the child process will call.
* @param attr The procattr we care about.
* @param cmd The type of command. One of:
* <PRE>
* 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
* </PRE>
*/
public static native int cmdtypeSet(long attr, int cmd);
/**
* Determine if the child should start in detached state.
* @param attr The procattr we care about.
* @param detach Should the child start in detached state? Default is no.
*/
public static native int detachSet(long attr, int 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.
* @param attr The procattr describing the child process to be created.
* @param chk Flag to indicate whether or not extra work should be done
* to try to report failures to the caller.
* <br>
* 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 attr, int chk);
/**
* Determine if the child should start in its own address space or using the
* current one from its parent
* @param attr The procattr we care about.
* @param 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 attr, int 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.
* @param attr The procattr describing the child process to be created.
* @param pool The the pool to use.
* @param o The Object to call in the child process.
* <br>
* 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 attr, long pool, Object o);
/**
* Set the username used for running process
* @param attr The procattr we care about.
* @param username The username used
* @param 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 attr, String username, String password);
/**
* Set the group used for running process
* @param attr The procattr we care about.
* @param groupname The group name used
*/
public static native int groupSet(long attr, String groupname);
}