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127 lines
3.6 KiB
127 lines
3.6 KiB
// BusyThread.java
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// (C) 2008 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
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// first published 27.03.2008 on http://yacy.net
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//
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// $LastChangedDate$
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// $LastChangedRevision$
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// $LastChangedBy$
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//
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// LICENSE
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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package net.yacy.kelondro.workflow;
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public interface BusyThread extends WorkflowThread {
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/**
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* sets a sleep time before execution of the job-loop
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* @param milliseconds
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*/
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public void setStartupSleep(long milliseconds);
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/**
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* sets a sleep time for pauses between two jobs if the job returns false (idle)
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* @param milliseconds
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* @return
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*/
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public long setIdleSleep(long milliseconds);
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/**
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* gets the sleep time for pauses between two jobs if the job returns false (idle)
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* @return milliseconds
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*/
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public long getIdleSleep();
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/**
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* sets a sleep time for pauses between two jobs if the job returns true (busy)
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* @param milliseconds
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* @return
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*/
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public long setBusySleep(long milliseconds);
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/**
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* gets the sleep time for pauses between two jobs if the job returns true (busy)
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* @return milliseconds
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*/
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public long getBusySleep();
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/**
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* sets minimum required amount of memory for the job execution
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* @param freeBytes
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*/
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public void setMemPreReqisite(long freeBytes);
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/**
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* sets maximimum load for the job execution
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* @param load
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*/
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public double setLoadPreReqisite(final double load);
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/**
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* defines if the thread should obey the intermission command
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* @param obey
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*/
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public void setObeyIntermission(boolean obey);
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/**
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* @return the total number of cycles of job execution with idle-result
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*/
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public long getIdleCycles();
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/**
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* @return the total number of cycles of job execution with busy-result
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*/
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public long getBusyCycles();
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/**
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* @return the total number of cycles where a job execution was omitted
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* because of memory shortage
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*/
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public long getOutOfMemoryCycles();
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/**
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* @return the total number of cycles where a job execution was omitted
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* because of too high CPU load
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*/
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public long getHighCPUCycles();
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/**
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* @return the total time that this thread has slept so far
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*/
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public long getSleepTime();
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/**
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* the thread is forced to pause for a specific time
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* if the thread is busy meanwhile, the pause is ommitted
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* @param pause
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*/
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public void intermission(long pause);
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/**
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* performes one job procedure; this loopes until terminate() is called
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* @return true if it has done something, false if it is idle and does not expect to work on more for a longer time
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*/
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public boolean job() throws Exception;
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/**
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* is called when an outOfMemoryCycle is performed
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* this method should try to free some memory, so that the job can be executed
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*/
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public void freemem();
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}
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