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#include <stdio.h>
#include <math.h>
#include <signal.h>
#include <sys/time.h>
#include <rpc/rpc.h>
#include "lin.h"
#ifndef O_RDONLY
#define O_RDONLY 00
#endif
#ifndef O_WRONLY
#define O_WRONLY 01
#endif
#define A_2 0.0000821
#define B 0.0017
#define EPS 1.e-3
static double tmp1,tmp2,tmp3,suma;
CLIENT *cl;
int *result;
static int i;
static remote_o_struct ros[] = {{"/dev/lc0",O_RDONLY,2},
{"/dev/lc1",O_RDONLY,2},
{"/dev/lc2",O_RDONLY,2},
{"/dev/lc3",O_RDONLY,2},
{"/dev/lc4",O_RDONLY,2},
{"/dev/lc5",O_RDONLY,2},
{"/dev/lc6",O_RDONLY,2},
{"/dev/lc7",O_RDONLY,2},
{"/dev/lc16",O_WRONLY,2}};
static remote_r_w_struct rrws[9],*res;
static char server[]="air.vm.stuba.sk";
void open_termo()
{
if((cl = clnt_create(server,REMOTEDEVICE,REMOTEVERS,"tcp")) == NULL)
{
clnt_pcreateerror(server);
exit(1);
}
for(i=0; i < 8; i++)
{
if((result=remote_open_1(&ros[i],cl)) == NULL)
{
clnt_perror(cl,server);
exit(1);
}
if(*result == -1)
{
printf("bad open\n");
exit(1);
}
rrws[i].fd = *result;
rrws[i].bytes = 2;
}
if((result=remote_open_1(&ros[8],cl)) == NULL)
{
clnt_perror(cl,server);
exit(1);
}
if(*result == -1)
{
printf("bad open\n");
exit(1);
}
rrws[8].fd = *result;
rrws[8].bytes = 2;
}
void read_termo(a)
char **a;
{
double *resu;
resu = (double *)a[0];
for(i=0; i < 8; i++)
{
if((res=remote_read_1(&rrws[i],cl)) == NULL)
{
clnt_perror(cl,server);
exit(1);
}
if(res->bytes == -1)
{
printf("bad read\n");
exit(1);
}
*(short *)rrws[i].buf = *(short *)res->buf;
resu[i] = 5*((double)*(short *)rrws[i].buf-2048)/1024;
/* printf("%g %d\n",resu[i],*(short *)rrws[i].buf);*/
}
}
void write_termo(a)
char **a;
{
short pom;
double dat;
dat = *(double *)a[0];
pom = (short)(2048 * dat/5);
*(short *)rrws[8].buf = pom;
if((result=remote_write_1(&rrws[8],cl)) == NULL)
{
clnt_perror(cl,server);
exit(1);
}
if(*result == -1)
{
printf("bad write\n");
exit(1);
}
}
void close_termo()
{
for(i=0; i < 9; i++)
{
if((result=remote_close_1(&rrws[i].fd,cl)) == NULL)
{
clnt_perror(cl,server);
exit(1);
}
}
}
void mysig_handler()
{
}
void init_wait(a)
char **a;
{
struct itimerval cas_new, cas_old;
long milisec;
milisec = *(int *)a[0];
cas_new.it_interval.tv_sec=milisec/1000;
cas_new.it_interval.tv_usec=(milisec % 1000)*1000;
cas_new.it_value.tv_sec=milisec/1000;
cas_new.it_value.tv_usec=(milisec % 1000)*1000;
setitimer(ITIMER_REAL,&cas_new,&cas_old);
signal(SIGALRM,mysig_handler);
}
double green_func(a)
char **a;
{
int n=0;
double periodic = 0;
double lambda = 0.;
double majorant = 0.;
double x,t,l,tk;
x = *(double *)a[0];
t = *(double *)a[1];
l = *(double *)a[2];
tk = *(double *)a[3];
suma = 0.;
while(1)
{
periodic = (2*n + 1) * M_PI / (2 * l);
tmp1 = sin(periodic * x);
lambda = pow(periodic,(double)2) * A_2;
tmp2 = exp(-lambda * (tk-t))/(2 * n + 1);
#ifdef DEBUG
printf("tmp2 %g\n",tmp2);
#endif
if(n == 0)
{
if(tmp2 == 0.)
{
majorant = 1.;
}
else
{
majorant = fabs(tmp2);
}
}
if (fabs(tmp2) < majorant)
{
if(suma == 0. && n > 5)
{
break;
}
if(fabs(suma/majorant) > 1/EPS)
{
break;
}
else
{
majorant = majorant / 10.;
}
}
tmp3 = tmp1 * tmp2 ;
suma = suma + tmp3;
n += 1;
}
#ifdef DEBUG
printf(" suma %g\n",suma);
#endif
suma = 4. / M_PI * exp(-B * (tk-t)) * suma;
return(suma);
}
void csigpause(a)
char **a;
{
sigpause(*(int *)a[0]);
}
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