int main(int argc, char* argv[]){
// test 1 : pipe, lock and cvar
int lock_id, cvar_id, pipe_id;
int pid,status;
int condition=0;
char *test = "Yalnix Works";
char *buffer = (char*)malloc(1024);
TracePrintf(1, "init main: test pipe, lock, cvar.\n");
LockInit(&lock_id);
CvarInit(&cvar_id);
PipeInit(&pipe_id);
TracePrintf(1, "init main: Lockid %d.\n", lock_id);
TracePrintf(1, "init main: Cvarid %d.\n", cvar_id);
TracePrintf(1, "init main: Pipeid %d.\n", pipe_id);
pid = Fork();
if (pid == 0) {
TracePrintf(1,"init main: child \n");
Acquire(lock_id);
TracePrintf(1,"init main: child acquire the lock\n");
condition=1;
TracePrintf(1,"init main: child condition %d\n",condition);
PipeWrite(pipe_id, &condition,sizeof(int));
TracePrintf(1,"init main: child change the condition and write it to pipe\n");
TracePrintf(1,"init main: child cvar signal\n");
CvarSignal(cvar_id);
Release(lock_id);
TracePrintf(1,"init main: child write to pipe: %s\n",test);
PipeWrite(pipe_id,test,20);
TracePrintf(1,"init main: child release the lock\n");
Exit(0);
}
else{
TracePrintf(1,"init main: parent\n");
Acquire(lock_id);
TracePrintf(1,"init main: parent acquire the lock\n");
while(!condition){
TracePrintf(1,"init main: parent cvar wait, condition %d\n",condition);
CvarWait(cvar_id,lock_id);
PipeRead(pipe_id,&condition,sizeof(int));
TracePrintf(1,"init main: parent read the condition from pipe, condition %d\n",condition);
}
TracePrintf(1,"init main: parent wake up\n");
Release(lock_id);
TracePrintf(1,"init main: parent release the lock\n");
PipeRead(pipe_id,buffer,20);
TracePrintf(1,"init main: parent read from pipe: %s\n",buffer);
}
Reclaim(lock_id);
Reclaim(cvar_id);
Reclaim(pipe_id);
Exit(0);
}
int main(int argc, char *argv[]) {
// Create a single lock that the initial process obtains.
TracePrintf(TRACE_LEVEL_TESTING_OUTPUT, "Creating the lock.\n");
int lock_id;
int parent_cvar_id;
LockInit(&lock_id);
int rc;
// Init with invalid id pointer
rc = CvarInit((void *) 10);
TracePrintf(TRACE_LEVEL_TESTING_OUTPUT, "CvarInit w/ invalid pointer: rc = %d\n", rc);
// Signal with bad id
rc = CvarSignal(2388);
TracePrintf(TRACE_LEVEL_TESTING_OUTPUT, "CvarSignal w/ invalid id: rc = %d\n", rc);
// Broadcast with bad id
rc = CvarBroadcast(2388);
TracePrintf(TRACE_LEVEL_TESTING_OUTPUT, "CvarBroadcast w/ invalid id: rc = %d\n", rc);
// Wait w/ bad cvar id
rc = CvarWait(lock_id, 1239988);
TracePrintf(TRACE_LEVEL_TESTING_OUTPUT, "CvarWait w/ invalid cvar id: rc = %d\n", rc);
// Wait w/ lock I don't own
rc = CvarWait(lock_id, parent_cvar_id);
TracePrintf(TRACE_LEVEL_TESTING_OUTPUT, "CvarWait w/ lock I don't own: rc = %d\n", rc);
// Wait with bad lock id
rc = CvarWait(1283, parent_cvar_id);
TracePrintf(TRACE_LEVEL_TESTING_OUTPUT, "CvarWait w/ invalid cvar id: rc = %d\n", rc);
int child_cvar_id;
rc = CvarInit(&child_cvar_id);
TracePrintf(TRACE_LEVEL_TESTING_OUTPUT, "CvarInit w/ %x: rc = %d\n", &child_cvar_id, rc);
// Signal with no one waiting
rc = CvarSignal(child_cvar_id);
TracePrintf(TRACE_LEVEL_TESTING_OUTPUT, "CvarSignal w/ no waiting proc rc = %d\n", rc);
// Broadcast with no one waiting
rc = CvarBroadcast(child_cvar_id);
TracePrintf(TRACE_LEVEL_TESTING_OUTPUT, "CvarBroadcast w/ no waiting proc rc = %d\n", rc);
rc = CvarInit(&parent_cvar_id);
TracePrintf(TRACE_LEVEL_TESTING_OUTPUT, "CvarInit w/ %x: rc = %d\n", &parent_cvar_id, rc);
// The initial process then attempts to acquire the lock it holds. This should return immediately.
// Spawn 3 processes, each of which waits on the lock.
int i;
int n = 3;
bool is_parent = true;
for (i = 0; i < n; i++) {
rc = Fork();
if (0 == rc) { // Child process
TracePrintf(TRACE_LEVEL_TESTING_OUTPUT, "I'm a child with PID %d and I WANT the lock!\n",
GetPid());
is_parent = false;
Acquire(lock_id);
break;
}
}
// When a spawned process acquires the locks, it delays for a while, then releases it.
TracePrintf(TRACE_LEVEL_TESTING_OUTPUT, "I'm process %d and I HAVE the lock!\n", GetPid());
if (!is_parent) {
TracePrintf(TRACE_LEVEL_TESTING_OUTPUT, "I'm a child w/ PID %d and I'm waiting on my cvar!\n",
GetPid());
CvarWait(child_cvar_id, lock_id);
TracePrintf(TRACE_LEVEL_TESTING_OUTPUT, "I'ma a child w/ PID %d and I've finished waiting!\n",
GetPid());
CvarSignal(parent_cvar_id); // signal with proc waiting
} else {
Delay(5); // let children start waiting
Acquire(lock_id);
TracePrintf(TRACE_LEVEL_TESTING_OUTPUT, "I'm parent w/ PID %d and I'm broadcasting for child cvar!\n",
GetPid());
CvarBroadcast(child_cvar_id); // Broadchat with procs waiting
TracePrintf(TRACE_LEVEL_TESTING_OUTPUT, "I'm parent w/ PID %d and I'm waiting on my cvar!\n",
GetPid());
CvarWait(parent_cvar_id, lock_id);
TracePrintf(TRACE_LEVEL_TESTING_OUTPUT, "I'm parent w/ PID %d and I've finished waiting!!\n",
GetPid());
}
Release(lock_id);
int status;
if (is_parent) {
for (i = 0; i < n; i++) {
Wait(&status);
}
Reclaim(lock_id);
Reclaim(child_cvar_id);
Reclaim(parent_cvar_id);
}
return 0;
}
int main(int argc, char **argv)
{
int pid, i, j, ret;
int exit_status;
char *exec_argv[] = { "haha", NULL };
int *a = (int *)calloc(3, sizeof(int));
int num_a = 100;
char *str;
unsigned int delay_ticks = 2;
char buf[2 * TERMINAL_MAX_LINE + 2];
char pipe_buf[1025];
int pipe_fd;
int lock_fd;
int cvar_fd;
#ifdef SWAP_TEST
free(a);
a = (void *)calloc(num_a, PAGESIZE);
if (a == NULL)
goto loop;
if (Fork() == 0) {
while (1) {
Delay(2);
a[0] = 1000;
TtyPrintf(CONSOLE, "pid = %u, a[0] = %u\n", GetPid(), a[0]);
}
}
for (i = 0; i < num_a * PAGESIZE / sizeof(int); i += (PAGESIZE / sizeof(int)))
a[i] = 100;
if (Fork() == 0) {
while (1) {
Delay(2);
a[0] = 2000;
TtyPrintf(CONSOLE, "pid = %u, a[0] = %u\n", GetPid(), a[0]);
}
}
for (i = 0; i < num_a * PAGESIZE / sizeof(int); i += (PAGESIZE / sizeof(int)))
a[i] = 100;
if (Fork() == 0) {
while (1) {
Delay(2);
a[0] = 3000;
TtyPrintf(CONSOLE, "pid = %u, a[0] = %u\n", GetPid(), a[0]);
}
}
for (i = 0; i < num_a * PAGESIZE / sizeof(int); i += (PAGESIZE / sizeof(int)))
a[i] = 100;
if (Fork() == 0) {
while (1) {
Delay(2);
a[0] = 4000;
TtyPrintf(CONSOLE, "pid = %u, a[0] = %u\n", GetPid(), a[0]);
}
}
for (i = 0; i < num_a * PAGESIZE / sizeof(int); i += (PAGESIZE / sizeof(int)))
a[i] = 100;
if (Fork() == 0) {
while (1) {
Delay(2);
a[0] = 5000;
TtyPrintf(CONSOLE, "pid = %u, a[0] = %u\n", GetPid(), a[0]);
}
}
for (i = 0; i < num_a * PAGESIZE / sizeof(int); i += (PAGESIZE / sizeof(int)))
a[i] = 100;
#endif
#ifdef PIPE_TEST
ret = PipeInit(&pipe_fd);
pid = Fork();
bzero(pipe_buf, sizeof(pipe_buf));
if (pid != ERROR && !pid) {
TtyPrintf(CONSOLE, "pipe_fd = %u\n", pipe_fd);
j = 0;
Delay(1);
while (1) {
for (i = 0; i < sizeof(pipe_buf); i++)
pipe_buf[i] = (j % 26) + 'a';
TtyPrintf(CONSOLE, ">>>>>>>>>>> write pipe\n");
ret = PipeWrite(pipe_fd, pipe_buf, sizeof(pipe_buf));
TtyPrintf(CONSOLE, "write pipe ret = %d, pid = %u\n", ret, GetPid());
j++;
}
Exit(0);
}
while (1) {
bzero(pipe_buf, sizeof(pipe_buf));
TtyPrintf(CONSOLE, ">>>>>>>>>>> read pipe\n");
ret = PipeRead(pipe_fd, pipe_buf, sizeof(pipe_buf) - 7);
TtyPrintf(CONSOLE, "<<<<<<<<<<< read pipe ret = %d, pid = %u, %s\n", ret, GetPid(), pipe_buf);
}
Reclaim(pipe_fd);
#endif
#ifdef CVAR_TEST
ret = LockInit(&lock_fd);
ret = CvarInit(&cvar_fd);
pid = Custom0(0, 0, 0, 0);
if (pid != ERROR && !pid) {
Acquire(lock_fd);
while (!condition)
CvarWait(cvar_fd, lock_fd);
Delay(2);
Release(lock_fd);
Exit(7);
}
Acquire(lock_fd);
condition = 1;
CvarSignal(cvar_fd);
Release(lock_fd);
ret = Reclaim(lock_fd);
if (ret)
Exit(-1);
#endif
#ifdef TTY_TEST
for (i = 0; i < sizeof(buf) - 1; i++)
buf[i] = '9';
buf[i] = '\0';
TtyPrintf(CONSOLE, buf);
TtyPrintf(CONSOLE, "\n");
a[0] = 10;
a[2] = 100;
TtyPrintf(CONSOLE, "Enter somthing:\n");
bzero(buf, sizeof(buf));
ret = TtyRead(CONSOLE, buf, sizeof(buf));
TtyPrintf(CONSOLE, "You just entered: %s (len = %d)\n", buf, ret);
#endif
#ifdef COW_TEST
if (argc == 2)
delay_ticks = atoi(argv[1]);
pid = Fork();
if (pid == ERROR) {
Delay(2);
return ERROR;
} else if (!pid) {
GetPid();
delay_ticks = 5;
TtyPrintf(CONSOLE, " delay_ticks = %u, pid = %u\n", delay_ticks, GetPid());
pid = Fork();
if (pid != ERROR && !pid) {
GetPid();
delay_ticks = 8;
TtyPrintf(CONSOLE, " delay_ticks = %u, pid = %u\n", delay_ticks, GetPid());
Delay(delay_ticks);
Exec("exec_test", exec_argv);
}
pid = Wait(&exit_status);
TtyPrintf(CONSOLE, " delay_ticks = %u, pid = %u\n", delay_ticks, GetPid());
TtyPrintf(CONSOLE, " wait child = %u, status = %d\n", pid, exit_status);
Delay(delay_ticks);
Exit(10);
}
pid = Fork();
if (pid != ERROR && !pid) {
incursive_func(0);
GetPid();
delay_ticks = 9;
TtyPrintf(CONSOLE, " delay_ticks = %u, pid = %u\n", delay_ticks, GetPid());
Delay(delay_ticks);
Exit(100);
}
TtyPrintf(CONSOLE, " delay_ticks = %u, pid = %u\n", delay_ticks, GetPid());
Delay(delay_ticks);
GetPid();
Wait(&exit_status);
Wait(&exit_status);
GetPid();
#endif
loop:
while (1)
Delay(delay_ticks);
return 0;
}
