//
// Read characters from the terminals and puts them in the buffers.
// When a buffer is full verify its content against the inputs.
//
void
term_handler(int type, void *arg) {
int result;
int status;
char ch;
int unit = (int) arg;
int i;
// Get the device status for the terminal.
result = USLOSS_DeviceInput(USLOSS_TERM_DEV, unit, &status);
if (result != USLOSS_DEV_OK) {
USLOSS_Console("Something is wrong with terminal %d!!", unit);
USLOSS_Halt(1);
}
// If the status is "USLOSS_DEV_BUSY" then a character has been received.
if (USLOSS_TERM_STAT_RECV(status) == USLOSS_DEV_BUSY) {
ch = USLOSS_TERM_STAT_CHAR(status); // Get the characte
USLOSS_Console("%d: %c\n", unit, ch);
i = counts[unit]++;
buffers[unit][i] = ch;
if (i == NUMCHARS-1) {
assert(!strncmp(inputs[unit], buffers[unit], NUMCHARS));
done++;
}
}
}
int XXp1(char *arg)
{
int result, status;
USLOSS_Console("XXp1(): started, calling waitDevice for terminal 1\n");
result = waitDevice(USLOSS_TERM_DEV, 1, &status);
USLOSS_Console("XXp1(): after waitDevice call\n");
if ( result == -1 ) {
USLOSS_Console("XXp1(): got zap'd result from waitDevice() call. ");
USLOSS_Console("Should not have happened!\n");
}
else if ( result == 0 )
USLOSS_Console("XXp1(): status = %d\n", status);
else
USLOSS_Console("XXp1(): got %d instead of -1 or 0 from waitDevice\n",
result);
USLOSS_Console("XXp1(): receive status for terminal 1 = %d\n",
USLOSS_TERM_STAT_RECV(status));
USLOSS_Console("XXp1(): character received = %c\n",
USLOSS_TERM_STAT_CHAR(status));
quit(-3);
return 0; /* so gcc will not complain about its absence... */
} /* XXp1 */
int TermReader(void *arg){
int unit = (int) arg;
char buffer[P2_MAX_LINE] = { 0 };
int i = 0;
int status;
P1_V(termRunningSem[unit]);
while(1){
P2_MboxReceive(termReaderMB[unit],&status,&INT_SIZE);
if(done != 0){
break;
}
char c = USLOSS_TERM_STAT_CHAR(status);
if(i < P2_MAX_LINE){
buffer[i] = c;
i++;
}
if(c == '\n'){
if(i > P2_MAX_LINE){
i = P2_MAX_LINE;
}
P2_MboxCondSend(termLookAhead[unit],buffer,&i);
i = 0;
memset(buffer,0,MAX_LINE);
}
}
return unit;
}
//
// Read characters from terminal 0 and writes them to the USLOSS_Console.
//
void
term_handler(int type, void *arg) {
int result;
int status;
char ch;
int unit = (int) arg;
if (unit != 0) {
return;
}
// Get the device status for terminal 0.
result = USLOSS_DeviceInput(USLOSS_TERM_DEV, 0, &status);
if (result != USLOSS_DEV_OK) {
USLOSS_Console("Something is wrong with terminal 0!!");
USLOSS_Halt(1);
}
// If the status is "USLOSS_DEV_BUSY" then a character has been received.
if (USLOSS_TERM_STAT_RECV(status) == USLOSS_DEV_BUSY) {
ch = USLOSS_TERM_STAT_CHAR(status); // Get the character
USLOSS_Console("%c", ch);
}
}
