All Packages  This Package  Class Hierarchy  Class Search  Index

java.lang.Object
   |
   +----posix.IPC
           |
           +----posix.SemSet

Summary

public class  SemSet
     extends posix.IPC
{
          // Fields 1
     public static final short SEM_UNDO;

          // Constructors 3
     public SemSet(int) throws IPCException;
     public SemSet(int, int, int) throws IPCException;
     public SemSet(String, int) throws IPCException;

          // Methods 12
     public static native int semget(int, int, int);

     public char getNCnt(char) throws IPCException;
     public IPC.Perm getPerm() throws IPCException;
     public int getPid(char) throws IPCException;
     public SemSet.semid_ds getStatus() throws IPCException;
     public short getValue(char) throws IPCException;
     public short[] getValues() throws IPCException;
     public char getZCnt(char) throws IPCException;
     public void remove();
     public void semop(short[]) throws IPCException;
     public void setValue(char, short) throws IPCException;
     public void setValues(short[]) throws IPCException;

          // Inner Classes 1
     public static class SemSet.semid_ds
}

Represent a posix semaphore set. Work in progress.

Author:

Stuart D. Gathman Copyright (C) 1998 Business Management Systems, Inc.

This code is distributed under the GNU Library General Public License

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details.

You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

Fields

· SEM_UNDO

Summary  |  Top

   public static final short SEM_UNDO

Constructors

· SemSet

Summary  |  Top

   public SemSet(int key, 
                 int nsem, 
                 int flag)  throws IPCException

   public SemSet(int qid)  throws IPCException

Attach to an existing semaphore set

   public SemSet(String path, 
                 int id)  throws IPCException

Attach to an existing semaphore set

   public void remove() 

Overrides:

remove in class IPC

   public static native int semget(int key, 
                                   int num, 
                                   int flag) 

   public SemSet.semid_ds getStatus()  throws IPCException

   public IPC.Perm getPerm()  throws IPCException

Overrides:

getPerm in class IPC

   public void semop(short[] sema)  throws IPCException

   public int getPid(char semnum)  throws IPCException

   public char getNCnt(char semnum)  throws IPCException

   public char getZCnt(char semnum)  throws IPCException

   public short getValue(char semnum)  throws IPCException

   public void setValue(char semnum, 
                        short val)  throws IPCException

   public short[] getValues()  throws IPCException

   public void setValues(short[] vals)  throws IPCException

All Packages  This Package  Class Hierarchy  Class Search  Index