diff options
Diffstat (limited to 'java/src/StreamHead.java')
-rw-r--r-- | java/src/StreamHead.java | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/java/src/StreamHead.java b/java/src/StreamHead.java deleted file mode 100644 index 37d9c2af0c3..00000000000 --- a/java/src/StreamHead.java +++ /dev/null @@ -1,120 +0,0 @@ -/************************************************* - * - * = PACKAGE - * JACE.ASX - * - * = FILENAME - * StreamHead.java - * - *@author Prashant Jain - * - *************************************************/ -package JACE.ASX; - -import JACE.OS.*; - -/** - * <hr> - * <h2>SYNOPSIS</h2> - *<blockquote> - * Standard module that acts as the head of a ustream. - *</blockquote> - */ - -public class StreamHead extends Task -{ - // Module that acts as the head of a Stream. - - public int open (Object obj) - { - return 0; - } - - public int close (long l) - { - return 0; - } - - public int svc () - { - return -1; - } - - private int control (MessageBlock mb) - { - - IOCntlMsg ioc = (IOCntlMsg) mb.obj (); - int cmd = ioc.cmd (); - - switch (cmd) - { - case IOCntlCmds.SET_LWM: - case IOCntlCmds.SET_HWM: - this.waterMarks (cmd, mb.cont ().length ()); - ioc.rval (0); - break; - default: - return 0; - } - return ioc.rval (); - } - - /* Performs canonical flushing at the ACE_Stream Head */ - - private int canonicalFlush (MessageBlock mb) - { - String s = mb.base (); - long f = (new Long (s)).longValue (); - - if ((f & TaskFlags.ACE_FLUSHR) != 0) - { - this.flush (TaskFlags.ACE_FLUSHALL); - f &= ~TaskFlags.ACE_FLUSHR; - } - if ((f & TaskFlags.ACE_FLUSHW) != 0) - return this.reply (mb, new TimeValue ()); - return 0; - } - - public int put (MessageBlock mb, TimeValue tv) - { - int res = 0; - if (mb.msgType () == MessageType.MB_IOCTL - && (res = this.control (mb)) == -1) - return res; - - if (this.isWriter ()) - { - return this.putNext (mb, tv); - } - else /* this.isReader () */ - { - switch (mb.msgType ()) - { - case MessageType.MB_FLUSH: - return this.canonicalFlush (mb); - default: - break; - } - - try - { - return this.putq (mb, tv); - } - catch (InterruptedException e) - { - return -1; - } - } - } - - public void dump () - { - } - - public int handleTimeout (TimeValue tv, Object obj) - { - return 0; - } - -} |