main()
{
char name[64]; int cmd;
/* resetVideo();*/
while(1){
pid = get_pid();
printf("==============================================\n");
printf("I am task %d in Umode at segment=%x\n", pid, getcs());
show_menu();
printf("Command ? ");
mgets(name);
if (name[0]==0)
continue;
cmd = find_cmd(name);
switch(cmd){
case 0 : get_pid(); break;
case 1 : ps(); break;
case 2 : chname(); break;
case 3 : kmode(); break;
case 4 : kswitch(); break;
case 5 : mywait(); break;
case 6 : myexit(); break;
case 7 : ufork(); break;
case 8 : myexec("/u2"); break;
case 9 : sin(); break;
case 10 : sout(); break;
default: invalid(name); break;
}
}
}
main()
{
char name[64]; int pid, cmd;
char c;
while(1){
color = 0x0C;
printf("----------------------------------------------\n");
pid = getpid();
printf("I am proc %d in U mode: running segment=%x\n", pid, getcs());
show_menu();
printf("Command ? ");
gets(name);
if (name[0]==0)
continue;
cmd = find_cmd(name);
switch(cmd){
case 0 : getpid(); break;
case 1 : ps(); break;
case 2 : chname(); break;
case 3 : kfork(); break;
case 4 : kswitch(); break;
case 5 : wait(); break;
case 6 : exit(); break;
case 7 : c = kgetc(); putc(c); putc('\n'); putc('\r'); break;
case 8 : kputc(); break;
default: invalid(name); break;
}
}
}
main()
{
char name[64]; int pid, cmd;
while(1){
pid = getpid();
color = 0x000A + (pid % 6);
printf("----------------------------------------------\n");
printf("I am proc %d in U mode: running segment=%x\n",getpid(), getcs());
show_menu();
printf("Command ? ");
gets(name);
if (name[0]==0)
continue;
cmd = find_cmd(name);
switch(cmd){
case 0 : getpid(); break;
case 1 : ps(); break;
case 2 : chname(); break;
case 3 : kmode(); break;
case 4 : kswitch(); break;
case 5 : wait(); break;
case 6 : exit(); break;
default: invalid(name); break;
}
}
}
main()
{
char name[64];
int pid, cmd, out;
printf("in u2.c\n");
while(1)
{
pid = getpid();
color = 0x0C;
printf("----------------------------------------------\n");
printf("I am proc %d in U2 mode: running segment=%x\n", getpid(), getcs());
show_menu();
printf("Your Order ? ");
gets(name);
if (name[0]==0)
continue;
cmd = find_cmd(name);
if (cmd >= 0)
{
out = commands[cmd].f();
}
else
{
invalid(name);
}
}
}
main()
{
char name[64]; int cmd;
int pid;
while(1){
pid = getpid();
printf("==============================================\n");
printf("Das ist prozess %d im Umode segment=%x\n", pid, getcs());
show_menu();
printf("Command ? ");
gets(name);
if (name[0]==0)
continue;
cmd = find_cmd(name);
switch(cmd){
case 0 : getpid(); break;
case 1 : ps(); break;
case 2 : chname(); break;
case 3 : kmode(); break;
case 4 : kswitch(); break;
case 5 : mywait(); break;
case 6 : myexit(); break;
case 7 : ufork(); break;
case 8 : myexec("/bin/u1"); break;
case 9 : sin(); break;
case 10: sout(); break;
default: invalid(name); break;
}
}
}
main()
{
char name[64]; int pid, cmd;
color = 0x0F;
while(1){
printf("----------------------------------------------\n");
pid = getpid();
printf("I am proc %d in U mode: running segment=%x\n", pid, getcs());
show_menu();
printf("Command ? ");
gets(name);
if (name[0]==0)
continue;
cmd = find_cmd(name);
switch(cmd){
case 0 : getpid(); break;
case 1 : ps(); break;
case 2 : chname(); break;
case 3 : pid = kfork();
printf("fork returned: %d\n", pid);
break;
case 4 : kswitch(); break;
case 5 : wait(); break;
case 6 : exit(); break;
case 7 : pid = exec();
printf("exec returned: %d\n", pid); break;
default: invalid(name); break;
}
}
}
main()
{
char name[64]; int pid, cmd;
pid = getpid();
while(1){
color = 0x0000B + pid;
printf("==============================================\n");
printf("\nIch bin Prozess %d in der U Weise: das laufen im Segment=%x\n",
getpid(), getcs());
#include "ubody.c"
}
}
int main(int argc, char *argv[]) {
char name[64];
int pid, cmd;
int pd[2];
while(1){
printf("\n----------------------------------------------\n");
#ifndef _LAB_3_
printf("I am proc %d in U mode with ppid %d: running segment=%x\n",getpid(), getppid(), getcs());
#else
printf("I am proc "); getpid(); printf(" in U mode: running segment=%x\n", getcs());
#endif
#ifdef _SLEEPER_
while(1) {
printf("PID: %d PPID: %d\n", getpid(), getppid());
sleep(5);
return 0;
}
#endif
show_menu();
printf("Command? ");
gets(name);
printf("\n");
if (name[0]==0)
continue;
cmd = find_cmd(name);
switch(cmd){
case 0: getpid(); break;
case 1: ps(); break;
case 2: chname(); break;
case 3: kswitch(); break;
case 4: wait(); break;
case 5: ufork(); break;
case 6: uexec(); break;
case 7: exit(); break;
case 8: pipe(pd); break;
case 9: pfd(); break;
case 10: uclose(); break;
case 11: uread(); break;
case 12: uwrite(); break;
case 13: usleep(); break;
default:invalid(name);break;
}
}
}
int uvfork()
{
int pid, status;
printf("do_vfork()\n");
pid = vfork();
if (pid){
printf("vfork parent %d waits\n", getpid());
pid = wait(&status);
printf("vfork parent %d back form wait, dead child=%d\n", getpid(),pid);
}
else{
printf("vforked child %d in segment=%x\n", getpid(), getcs());
printf("This is Goldilocks playing in Papa bear's bed\n");
printf("**** EXEC NOW! before he wakes up *****\n");
exec("u2 one two three");
printf("exec failed\n");
}
}
int do_vfork()
{
int pid, status;
printf("do_vfork()\n");
pid = vfork();
if (pid){
printf("vfork parent %d waits\n", getpid());
pid = wait(&status);
printf("vfork parent %d back form wait, dead child=%d\n", getpid(),pid);
}
else{
printf("vforked child %d in segment=%x\n", getpid(), getcs());
printf("This is Goldilocks playing in Papa bear's bed\n");
printf("EXEC NOW! before he wakes up\n");
syscall(8,"u2 Bye! Bye! Papa Bear");
printf("exec failed\n");
}
}
main()
{
char name[64]; int pid, cmd;
pid = getpid();
while(1){
color = 0x0000B + pid;
printf("==============================================\n");
printf("\nIch bin Prozess %d in der U Weise: das laufen im Segment=%x\n",
getpid(), getcs());
show_menu();
printf("Command ? ");
gets(name);
if (name[0]==0)
continue;
cmd = find_cmd(name);
printf("find_cmd = %d\n", cmd);
switch(cmd){
case 0 : getpid(); break;
case 1 : ps(); break;
case 2 : chname(); break;
case 3 : kmode(); break;
case 4 : kswitch(); break;
case 5 : wait(); break;
case 6 : exit(); break;
case 7 : fork(); break;
case 8 : exec(); break;
case 9 : pipe(); break;
case 10: pfd(); break;
case 11 : read_pipe(); break;
case 12 : write_pipe();break;
case 13: close(); break;
default: invalid(name); break;
}
}
}
main()
{
char name[64]; int pid, cmd;
while(1){
pid = getpid();
color = 0x000B + (pid % 6);
printf("----------------------------------------------\n");
printf("I am proc %d in U mode: running segment=%x\n",getpid(), getcs());
show_menu();
printf("Command ? ");
gets(name);
if (name[0]==0)
continue;
cmd = find_cmd(name);
printf("find_cmd = %d\n", cmd);
/*char *cmd[]={"getpid", "ps", "chname", "kmode", "switch", "wait", "exit",
"fork", "exec", "pipe", "pfd", "read", "write", "close", 0};*/
switch(cmd){
case 0 : getpid(); break;
case 1 : ps(); break;
case 2 : chname(); break;
case 3 : kmode(); break;
case 4 : kswitch(); break;
case 5 : wait(); break;
case 6 : exit(); break;
case 7 : fork(); break;
case 8 : exec(); break;
case 9 : pipe(); break;
case 10: pfd(); break;
case 11 : read_pipe(); break;
case 12 : write_pipe();break;
case 13: close_pipe(); break;
default: invalid(name); break;
}
}
}
main()
{
char name[64];
int pid, cmd;
while(1){
printf("==============================================\n");
printf("\nIch bin Prozess %d in der U Weise: das laufen im Segment=%x\n",
getpid(), getcs());
show_menu();
printf("Command ? ");
gets(name);
if (name[0]==0)
continue;
cmd = find_cmd(name);
switch(cmd){
case 0 : getpid(); break;
case 1 : ps(); break;
case 2 : chname(); break;
case 3 : kmode(); break;
case 4 : kswitch(); break;
case 5 : wait(); break;
case 6 : die(); break;
case 7 : ufork(); break;
case 8 : uexec(); break;
case 9 : chcolor(); break;
default: invalid(name); break;
}
}
}