Synergy User Manual and Tutorial. - THE CORE MEMORY

Synergy User Manual and Tutorial
Sending and Receiving Data Types
Sending Various Data Types
Synergy can put and get more than characters from its tuple space. The following
example shows how to put various data types into a tuple space and get various data types
out of a tuple space. The master program (tuplePassMaster.c) puts different data types
into the problem tuple space, and the worker (tuplePassWorker.c) gets them, displays
them and puts messages in the result tuple space identifying which data types it took.
This application also uses a distributed semaphore to ensure that the workers take data
properly. It also demonstrates the difference between the cnf_read() and cnf_get()
functions. The tuplePass application is located in the example03 directory. The
tuplePass.h file has the definitions for the constant and the data structure used in the
application.
The following is the tuple space “data type passing” master program:
#include
#include
#include "tuplePass.h"
main(){
int tplength;
int status;
int P;
int i;
int res;
int tsd;
int sem;
char host[128];
char tpname[20];
char recdMsg[50];
// Length of ts entry
// Return status for tuple operations
// Number of processors
// Counter index
// Result tuple space identifier
// Problem tuple space identifier
// Semaphore
// Host machine name
// Identifier of ts entry
// Message received from workers
// Different datatypes to send to workers
// Integer sent to worker
int num = 12000;
int *numPtr = #
// Long integer sent to worker
long lnum = 1000000;
long *lnumPtr = &lnum;
// Float sent to worker
float frac = 0.5;
float *fracPtr = &frac;
// Double sent to worker
double dfrac = 12345.678;
double *dfracPtr = &dfrac;
// Integer array sent to worker
int numArr[MAX] = {0,1,2,3,4};
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