main(void)
{
//struct stats s;
//int d;
//int t;
//char m[1000];
//char *buffer = "Q \n";
/* Next line, tries to move value 0 to CR3 register. This register is a privileged one, and so it will raise an exception */
/* __asm__ __volatile__ ("mov %0, %%cr3"::"r" (0) ); */
/*d=write(-1,buffer,strlen(buffer));
if (d==-1) perror();
t=gettime();
itoa(t,m);
write(1,m,strlen(m));*/
//d = fork();
//char pila[4096];
//runjp_rank(5,5);
runjp();
//clon_ranke(funcio,&pila[4095]);
//d = getpid();
// if (d > 0)exit();
// if (get_stats(4,&s) < 0) d = 1;
// else d = 0;
// itoa(d,buffer);
// d=write(1,buffer,strlen(buffer));
while(1){
//d = getpid();
//get_stats(1,&s);
//if (d==2) exit();
//itoa(d,buffer);
//d=write(1,buffer,strlen(buffer));
}
return 0;
}
main(void)
{
/* Next line, tries to move value 0 to CR3 register. This register is a privileged one, and so it will raise an exception */
//__asm__ __volatile__ ("mov %0, %%cr3"::"r" (0) );
//__asm__ __volatile__ ("int $0x0");
//__asm__ ("ud2");
/* Uncomment next line to call the initial routine for the test cases */
runjp();
/*write(1,"Write SysCall\nWORKS!!!!!!\n\n!",22);
perror();
write(1,"Write SysCall\nWORKS!!!!!!\n\n!",-1);
perror();
write(6,"ciao",4);
perror();*/
/* This tests for fork() and getpid()
-------------------------------------
int i,j,e;
write(1,"Prova getpid():\n",16);
e=getpid();
if(e<0)
{
write(1,"getpid(): errore",16);}
else
for(i=0;i<e;i++) write(1,"a",1);
write(1,"\n",1);
write(1,"Prova 5 fork():\n",16);
for(j=0;j<10;j++){
e=fork();
if(e<0)
{
write(1,"\nfork(): errore\n",16);
perror();}
else
for(i=0;i<e;i++) write(1,"a",1);
write(1," ",1);
}
write(1,"\nfine\n",6);*/
/*_______________________________________________________*/
/*
write(1,"ciao\n",5);
sem_init(0,0);
fork();
fork();
fork();
if(getpid()==0)
write(1,"Processo 0\n",11);
else if(getpid()==1){
write(1,"Processo 1\n",11);
sem_init(2,0);
sem_wait(0);
write(1,"Una scritta qualsiasi (pid 1)\n",30);
sem_destroy(2);}
else if(getpid()==2){
write(1,"Processo 2\n",11);
sem_wait(2);
write(1,"Una scritta qualsiasi (pid 2)\n",30);
}
else if(getpid()==3){
write(1,"Processo 3\n",11);
sem_wait(2);
write(1,"Una scritta qualsiasi (pid 3)\n",30);
}
else if(getpid()==4){
write(1,"Processo 4\n",11);
sem_signal(0);
sem_wait(2);
write(1,"Una scritta qualsiasi (pid 4)\n",30);
}
if(getpid()>4){
exit();
}
write(1,"ciao2\n",6);
struct stats st[5];
get_stats(0,&st[0]);
get_stats(1,&st[1]);
get_stats(2,&st[2]);
get_stats(3,&st[3]);
get_stats(4,&st[4]);*/
/* _______________________
* test per read e write
*
char buffer[30];
char prova[30];
char lettura[5];
char primo[]={'b','a','a','a','a','a','a','a','b','\0'};
int j=0,i=0;
for(i=0;i<29;i++) buffer[i]='a';
buffer[29]='\0';
write(1,"Inizio:\n",8);
fork();
/*if(getpid()==0){
i=open("Prova1",O_CREAT | O_EXCL | O_RDWR);
if(i>=0) write(1,"File Prova1 creato...\n",22);
else write(1,"Errore creazione Prova1...\n",27);
// Scrive un file da 30bytes (6 blocchi)
write(i,buffer,strlen(buffer));
write(1,"Scritto in Prova1...\n",21);
// Cancella quello stesso file
close(i);
unlink("Prova1");
// Crea e scrive un file da 10 bytes (2 blocchi)
i=open("Prova2",O_CREAT | O_EXCL | O_RDWR);
if(i>=0) write(1,"File Prova2 creato...\n",22);
else write(1,"Errore creazione Prova2...\n",27);
write(i,"123456789\0",10);
write(1,"Scritto in Prova2...\n",21);
j=open("Prova2",O_RDONLY);
if(j>=0) write(1,"File Prova2 aperto...\n",22);
else write(1,"Errore apertura Prova2...\n",26);
read(j,prova,10);
write(1,"Letti ",6);
itoa(strlen(prova),lettura);
write(1,lettura,strlen(lettura));
write(1," bytes: ",8);
write(1,prova,strlen(prova));
write(1,"\nFINE\n",6);
}*
/else if(getpid()==1){
write(1,"Processo 1\n",11);
read(0,primo,1);
write(1,"Prima risposta: ",16);
write(1,primo,strlen(primo));
write(1,"\n",1);
read(0,primo,8);
write(1,"Seconda risposta: ",18);
write(1,primo,strlen(primo));
write(1,"\n",1);
}*/
while(1);
return(0);
}
