108 lines
2.8 KiB
C
108 lines
2.8 KiB
C
|
//******************************************************************************
|
||
|
|
// Course: BSy
|
||
|
|
// File: main.c
|
||
|
|
// Author: M. Thaler, ZHAW
|
||
|
|
// Purpose: locking mechanisms
|
||
|
|
// Version: v.fs20
|
||
|
|
//******************************************************************************
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <pthread.h>
|
||
|
|
|
||
|
|
#include "banking.h"
|
||
|
|
#include "mtimer.h"
|
||
|
|
#include "mrandom.h"
|
||
|
|
|
||
|
|
//******************************************************************************
|
||
|
|
// constant values
|
||
|
|
|
||
|
|
#define MAX_THREADS 16
|
||
|
|
#define NUM_THREADS 5
|
||
|
|
|
||
|
|
#define TRANSFERS (16*1024*1024L)
|
||
|
|
#define ACCOUNTS (2048)
|
||
|
|
#define BRANCHES (128)
|
||
|
|
|
||
|
|
//******************************************************************************
|
||
|
|
// globals
|
||
|
|
|
||
|
|
int nThreads;
|
||
|
|
int ibc = 0;
|
||
|
|
|
||
|
|
//******************************************************************************
|
||
|
|
// customers
|
||
|
|
|
||
|
|
void *pusher(void *arg) {
|
||
|
|
int idx = (int)(long)(arg);
|
||
|
|
mrand_t rand;
|
||
|
|
unsigned int seed = 17*idx;
|
||
|
|
mrandInit(seed, &rand);
|
||
|
|
int account, from, to, val;
|
||
|
|
int count = TRANSFERS / nThreads;
|
||
|
|
for (int i = 0; i < count; i++) {
|
||
|
|
account = (int)(mrandUInt(&rand) % ACCOUNTS);
|
||
|
|
from = (int)(mrandUInt(&rand) % BRANCHES);
|
||
|
|
to = (int)(mrandUInt(&rand) % BRANCHES);
|
||
|
|
val = (int)(mrandRange(1000, 100000, &rand));
|
||
|
|
transfer(from, to, account, val);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void *checker(void *arg) {
|
||
|
|
for (int i = 0; i < 1000; i = i) {
|
||
|
|
ibc += checkIBC();
|
||
|
|
usleep(100*1000);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//******************************************************************************
|
||
|
|
// main program
|
||
|
|
|
||
|
|
int main(int argc, char *argv[]) {
|
||
|
|
|
||
|
|
gtimer_t timer;
|
||
|
|
mrand_t ranvar;
|
||
|
|
long assets;
|
||
|
|
|
||
|
|
// thread id's
|
||
|
|
pthread_t th[MAX_THREADS];
|
||
|
|
|
||
|
|
// get number of threads or default
|
||
|
|
if (argc > 1)
|
||
|
|
nThreads = atoi(argv[1]);
|
||
|
|
else
|
||
|
|
nThreads = NUM_THREADS;
|
||
|
|
nThreads = (nThreads > MAX_THREADS) ? MAX_THREADS : nThreads;
|
||
|
|
|
||
|
|
mrandInit((MAX_THREADS + 1)*333, &ranvar);
|
||
|
|
|
||
|
|
printf("\nRunning %d threads\n", nThreads);
|
||
|
|
makeBank(BRANCHES, ACCOUNTS);
|
||
|
|
for (int i = 0; i < ACCOUNTS; i++)
|
||
|
|
deposit(0, i, mrandRange(10, 1000*1000, &ranvar));
|
||
|
|
checkAssets();
|
||
|
|
|
||
|
|
startGTimer(timer);
|
||
|
|
// create threads and pass thread number
|
||
|
|
pthread_create(&th[0], NULL, checker, (void *)0);
|
||
|
|
sleep(1);
|
||
|
|
for (long i = 1; i < nThreads; i++)
|
||
|
|
pthread_create(&th[i], NULL, pusher, (void *)i);
|
||
|
|
// wait for threads to terminate
|
||
|
|
for (int i = 1; i < nThreads; i++)
|
||
|
|
pthread_join(th[i], NULL);
|
||
|
|
stopGTimer(timer);
|
||
|
|
|
||
|
|
checkAssets();
|
||
|
|
printGTime(timer);
|
||
|
|
|
||
|
|
if (ibc)
|
||
|
|
printf("\n\033[41mYou do not comply with the IBC rules \033[0m\n\n");
|
||
|
|
else
|
||
|
|
printf("\n\033[42mYou do comply with the IBC rules \033[0m\n\n");
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
//******************************************************************************
|