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PESNetworkAdapter Class Reference

Adapter class for PES Network functions. More...

#include <pesnetworkadapter.h>

List of all members.

Public Methods
void	receivePing ()
void	sendString (char *str)
void	sendPingReply (int condition)
void	sendResult (float result)
void	receiveTask (PESTask *tsk)
void	sendTask (PESSlaveInfo *slv, PESTask *tsk)
void	ping (int tid, int timeout)
void	recievePing (int *slave, int *status)
void	recieveString (int *slave, int *len, char *str)
void	Init ()
void	InitAsSlave ()
int	checkMessage ()
int	getMessageType ()
void	closeNetwork ()
Public Attributes
int	me
int	mytid
int	tids [200]
int	nproc

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Detailed Description

Adapter class for PES Network functions.

This class provides required functionality to use PES network functions. Both slave and master classes should use this class to communicate.

Author:

soysal

Version:

0.1

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Member Function Documentation

int PESNetworkAdapter::checkMessage (    )

Checks for a new message Returns: 0 when no new message >0 when some new message is waiting <0 when some error

void PESNetworkAdapter::closeNetwork (    )

Close PES connection

int PESNetworkAdapter::getMessageType (    )

Used to learn the type of PES message recieved. When there's no message in the buffer this function blocks the execution of program until a message arrives. To check for a message use checkMessage which immidiately returns. See also: checkMessage Returns: type of message

void PESNetworkAdapter::Init (    )

Connects to PVM service.

void PESNetworkAdapter::InitAsSlave (    )

This function initiates PES system as slave. This function also recieves initial broadcast data. This initial broadcast data contains information about other slaves in the system.

void PESNetworkAdapter::ping (  int    tid, int    timeout )

Sends a ping packet with timeout 'timeout' seconds to slave with TaskID 'tid' Parameters: tid  TaskID (which is obtained from PVM) of slave. timeout  number of seconds that ping reply should be sent before timeout occurs.

void PESNetworkAdapter::receivePing (    )

Recieves ping packet

void PESNetworkAdapter::receiveTask (  PESTask *    tsk )

Recieves a task from master Parameters: tsk  address of the task class. this class is filled with the data read from network through pvm functions

void PESNetworkAdapter::recievePing (  int *    slave, int *    status )

Recieves ping reply. Parameters: slave  the slave that sent the ping reply. This is the index of the slave in the slaves list. status  status of the slave that sent this ping reply package See also: sendPingReply

void PESNetworkAdapter::recieveString (  int *    slave, int *    len, char *    str )

Recieves a string Parameters: slave  the slave that has sent the string. This is the index of the slave in the slaves list. len  the length of the string that was recieved str  the string that has been recieved.

void PESNetworkAdapter::sendPingReply (  int    condition )

Sends ping reply to the master Parameters: condition  Can have 2 values o '0' for free o '1' for busy on the current task

void PESNetworkAdapter::sendResult (  float    result )

Sends result to the master Parameters: result  result to be sent

void PESNetworkAdapter::sendString (  char *    str )

Sends 'str' to the master Parameters: str  null terminated string to be sent

void PESNetworkAdapter::sendTask (  PESSlaveInfo *    slv, PESTask *    tsk )

Sends Task 'tsk' to Slave 'slv' Parameters: slv  pointer to the slave class which holds information about a slave tsk  poineter to the Task class which holds information about a task

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Member Data Documentation

int PESNetworkAdapter::me

Used to denote which slave this machine is in the tids table. See also: tids

int PESNetworkAdapter::mytid

The TaskID of process given by PVM system.

int PESNetworkAdapter::nproc

actual number processes in the system

int PESNetworkAdapter::tids[200]

TaskID's of other processes

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The documentation for this class was generated from the following file:

• pesnetworkadapter.h

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