static DWORD WINAPI tick_func(void *arg)
{
int tick_counter = 0;
uint64 start = GetTicks_usec();
int64 ticks = 0;
uint64 next = GetTicks_usec();
while (!tick_thread_cancel) {
// Wait
next += 16625;
int64 delay = next - GetTicks_usec();
if (delay > 0)
Delay_usec(delay);
else if (delay < -16625)
next = GetTicks_usec();
ticks++;
// Pseudo Mac 1Hz interrupt, update local time
if (++tick_counter > 60) {
tick_counter = 0;
WriteMacInt32(0x20c, TimerDateTime());
}
// Trigger 60Hz interrupt
if (ReadMacInt32(XLM_IRQ_NEST) == 0) {
SetInterruptFlag(INTFLAG_VIA);
TriggerInterrupt();
}
}
uint64 end = GetTicks_usec();
D(bug("%lu ticks in %lu usec = %f ticks/sec\n", (unsigned long)ticks, (unsigned long)(end - start), ticks * 1000000.0 / (end - start)));
return 0;
}
static void trigger_queue(void)
{
EnterCriticalSection( &queue_csection );
if( queue[queue_head].sz > 0 ) {
D(bug(" packet received, triggering Ethernet interrupt\n"));
SetInterruptFlag(INTFLAG_ETHER);
TriggerInterrupt();
// of course can't wait here.
}
LeaveCriticalSection( &queue_csection );
}
void *XSERDPort::output_func(void *arg)
{
XSERDPort *s = (XSERDPort *)arg;
while (!s->output_thread_cancel) {
// Wait for commands
sem_wait(&s->output_signal);
if (s->quitting)
break;
// Execute command
void *buf = Mac2HostAddr(ReadMacInt32(s->output_pb + ioBuffer));
uint32 length = ReadMacInt32(s->output_pb + ioReqCount);
D(bug("output_func transmitting %ld bytes of data...\n", length));
#if MONITOR
bug("Sending serial data:\n");
uint8 *adr = (uint8 *)buf;
for (int i=0; i<length; i++) {
bug("%02x ", adr[i]);
}
bug("\n");
#endif
int32 actual = write(s->fd, buf, length);
D(bug(" %ld bytes transmitted\n", actual));
// KillIO called? Then simply return
if (s->io_killed) {
WriteMacInt16(s->output_pb + ioResult, uint16(abortErr));
WriteMacInt32(s->output_pb + ioActCount, 0);
s->write_pending = s->write_done = false;
} else {
// Set error code
if (actual >= 0) {
WriteMacInt32(s->output_pb + ioActCount, actual);
WriteMacInt32(s->output_dt + serdtResult, noErr);
} else {
WriteMacInt32(s->output_pb + ioActCount, 0);
WriteMacInt32(s->output_dt + serdtResult, uint16(writErr));
}
// Trigger serial interrupt
D(bug(" triggering serial interrupt\n"));
s->write_done = true;
SetInterruptFlag(INTFLAG_SERIAL);
TriggerInterrupt();
}
}
return NULL;
}
static int32 timer_func(void *arg)
{
while (thread_active) {
// Wait until time specified by wakeup_time
snooze_until(wakeup_time, B_SYSTEM_TIMEBASE);
while (acquire_sem(wakeup_time_sem) == B_INTERRUPTED) ;
if (wakeup_time < system_time()) {
// Timer expired, trigger interrupt
wakeup_time = 0x7fffffffffffffff;
SetInterruptFlag(INTFLAG_TIMER);
TriggerInterrupt();
}
release_sem(wakeup_time_sem);
}
return 0;
}
static void *timer_func(void *arg)
{
while (!timer_thread_cancel) {
// Wait until time specified by wakeup_time
clock_nanosleep(CLOCK_REALTIME, TIMER_ABSTIME, &wakeup_time, NULL);
tm_time_t system_time;
timer_current_time(system_time);
if (timer_cmp_time(wakeup_time, system_time) < 0) {
// Timer expired, trigger interrupt
pthread_mutex_lock(&wakeup_time_lock);
wakeup_time = wakeup_time_max;
pthread_mutex_unlock(&wakeup_time_lock);
SetInterruptFlag(INTFLAG_TIMER);
TriggerInterrupt();
}
}
return NULL;
}
static void *timer_func(void *arg)
{
timer_thread = mach_thread_self();
timer_thread_active = true;
while (timer_thread_active) {
clock_sleep(system_clock, TIME_ABSOLUTE, wakeup_time, NULL);
semaphore_wait(wakeup_time_sem);
tm_time_t system_time;
timer_current_time(system_time);
if (timer_cmp_time(wakeup_time, system_time) < 0) {
wakeup_time = wakeup_time_max;
SetInterruptFlag(INTFLAG_TIMER);
TriggerInterrupt();
}
semaphore_signal(wakeup_time_sem);
}
return NULL;
}
__saveds void ASERDPort::serial_func(void)
{
struct ASERDPort *obj = (ASERDPort *)proc_arg;
struct MsgPort *proc_port = NULL, *io_port = NULL, *control_port = NULL;
struct IOExtSer *read_io = NULL, *write_io = NULL, *control_io = NULL;
uint8 orig_params[sizeof(struct IOExtSer)];
bool opened = false;
ULONG io_mask = 0, proc_port_mask = 0;
// Default: error occured
obj->proc_error = true;
// Create message port for communication with main task
proc_port = CreateMsgPort();
if (proc_port == NULL)
goto quit;
proc_port_mask = 1 << proc_port->mp_SigBit;
// Create message ports for serial.device I/O
io_port = CreateMsgPort();
if (io_port == NULL)
goto quit;
io_mask = 1 << io_port->mp_SigBit;
control_port = CreateMsgPort();
if (control_port == NULL)
goto quit;
// Create IORequests
read_io = (struct IOExtSer *)CreateIORequest(io_port, sizeof(struct IOExtSer));
write_io = (struct IOExtSer *)CreateIORequest(io_port, sizeof(struct IOExtSer));
control_io = (struct IOExtSer *)CreateIORequest(control_port, sizeof(struct IOExtSer));
if (read_io == NULL || write_io == NULL || control_io == NULL)
goto quit;
read_io->IOSer.io_Message.mn_Node.ln_Type = 0; // Avoid CheckIO() bug
write_io->IOSer.io_Message.mn_Node.ln_Type = 0;
control_io->IOSer.io_Message.mn_Node.ln_Type = 0;
// Parse device name
char dev_name[256];
ULONG dev_unit;
if (sscanf(obj->device_name, "%[^/]/%ld", dev_name, &dev_unit) < 2)
goto quit;
// Open device
if (obj->is_parallel)
((IOExtPar *)read_io)->io_ParFlags = PARF_SHARED;
else
read_io->io_SerFlags = SERF_SHARED | SERF_7WIRE;
if (OpenDevice((UBYTE *) dev_name, dev_unit, (struct IORequest *)read_io, 0) || read_io->IOSer.io_Device == NULL)
goto quit;
opened = true;
// Copy IORequests
memcpy(write_io, read_io, sizeof(struct IOExtSer));
memcpy(control_io, read_io, sizeof(struct IOExtSer));
// Attach control_io to control_port and set default values
control_io->IOSer.io_Message.mn_ReplyPort = control_port;
if (!obj->is_parallel) {
control_io->io_CtlChar = SER_DEFAULT_CTLCHAR;
control_io->io_RBufLen = 64;
control_io->io_ExtFlags = 0;
control_io->io_Baud = 9600;
control_io->io_BrkTime = 250000;
control_io->io_ReadLen = control_io->io_WriteLen = 8;
control_io->io_StopBits = 1;
control_io->io_SerFlags = SERF_SHARED;
control_io->IOSer.io_Command = SDCMD_SETPARAMS;
DoIO((struct IORequest *)control_io);
memcpy(orig_params, &(control_io->io_CtlChar), (uint8 *)&(control_io->io_Status) - (uint8 *)&(control_io->io_CtlChar));
}
// Initialization went well, inform main task
obj->proc_port = proc_port;
obj->control_io = control_io;
obj->proc_error = false;
Signal(MainTask, SIGF_SINGLE);
// Main loop
for (;;) {
// Wait for I/O and messages (CTRL_C is used for quitting the task)
ULONG sig = Wait(proc_port_mask | io_mask | SIGBREAKF_CTRL_C);
// Main task wants to quit us
if (sig & SIGBREAKF_CTRL_C)
break;
// Main task sent a command to us
if (sig & proc_port_mask) {
struct SerMessage *msg;
while (msg = (SerMessage *)GetMsg(proc_port)) {
D(bug("serial_proc received %08lx\n", msg->what));
switch (msg->what) {
case MSG_QUERY:
control_io->IOSer.io_Command = SDCMD_QUERY;
DoIO((struct IORequest *)control_io);
D(bug(" query returned %08lx, actual %08lx\n", control_io->IOSer.io_Error, control_io->IOSer.io_Actual));
break;
case MSG_SET_PARAMS:
// Only send SDCMD_SETPARAMS when configuration has changed
if (memcmp(orig_params, &(control_io->io_CtlChar), (uint8 *)&(control_io->io_Status) - (uint8 *)&(control_io->io_CtlChar))) {
memcpy(orig_params, &(control_io->io_CtlChar), (uint8 *)&(control_io->io_Status) - (uint8 *)&(control_io->io_CtlChar));
memcpy(&(read_io->io_CtlChar), &(control_io->io_CtlChar), (uint8 *)&(control_io->io_Status) - (uint8 *)&(control_io->io_CtlChar));
memcpy(&(write_io->io_CtlChar), &(control_io->io_CtlChar), (uint8 *)&(control_io->io_Status) - (uint8 *)&(control_io->io_CtlChar));
control_io->IOSer.io_Command = SDCMD_SETPARAMS;
D(bug(" params %08lx %08lx %08lx %08lx %08lx %08lx\n", control_io->io_CtlChar, control_io->io_RBufLen, control_io->io_ExtFlags, control_io->io_Baud, control_io->io_BrkTime, *(uint32 *)((uint8 *)control_io + 76)));
DoIO((struct IORequest *)control_io);
D(bug(" set_parms returned %08lx\n", control_io->IOSer.io_Error));
}
break;
case MSG_SET_PAR_PARAMS:
control_io->IOSer.io_Command = PDCMD_SETPARAMS;
DoIO((struct IORequest *)control_io);
D(bug(" set_par_parms returned %08lx\n", control_io->IOSer.io_Error));
break;
case MSG_BREAK:
control_io->IOSer.io_Command = SDCMD_BREAK;
DoIO((struct IORequest *)control_io);
D(bug(" break returned %08lx\n", control_io->IOSer.io_Error));
break;
case MSG_RESET:
control_io->IOSer.io_Command = CMD_RESET;
DoIO((struct IORequest *)control_io);
D(bug(" reset returned %08lx\n", control_io->IOSer.io_Error));
break;
case MSG_KILL_IO:
AbortIO((struct IORequest *)read_io);
AbortIO((struct IORequest *)write_io);
WaitIO((struct IORequest *)read_io);
WaitIO((struct IORequest *)write_io);
obj->read_pending = obj->write_pending = false;
obj->read_done = obj->write_done = false;
break;
case MSG_PRIME_IN:
read_io->IOSer.io_Message.mn_Node.ln_Name = (char *)msg->pb;
read_io->IOSer.io_Data = Mac2HostAddr(ReadMacInt32(msg->pb + ioBuffer));
read_io->IOSer.io_Length = ReadMacInt32(msg->pb + ioReqCount);
read_io->IOSer.io_Actual = 0;
read_io->IOSer.io_Command = CMD_READ;
D(bug("serial_proc receiving %ld bytes from %08lx\n", read_io->IOSer.io_Length, read_io->IOSer.io_Data));
SendIO((struct IORequest *)read_io);
break;
case MSG_PRIME_OUT: {
write_io->IOSer.io_Message.mn_Node.ln_Name = (char *)msg->pb;
write_io->IOSer.io_Data = Mac2HostAddr(ReadMacInt32(msg->pb + ioBuffer));
write_io->IOSer.io_Length = ReadMacInt32(msg->pb + ioReqCount);
write_io->IOSer.io_Actual = 0;
write_io->IOSer.io_Command = CMD_WRITE;
D(bug("serial_proc transmitting %ld bytes from %08lx\n", write_io->IOSer.io_Length, write_io->IOSer.io_Data));
#if MONITOR
bug("Sending serial data:\n");
uint8 *adr = Mac2HostAddr(ReadMacInt32(msg->pb + ioBuffer));
for (int i=0; i<len; i++) {
bug("%02lx ", adr[i]);
}
bug("\n");
#endif
SendIO((struct IORequest *)write_io);
break;
}
}
D(bug(" serial_proc replying\n"));
ReplyMsg(msg);
}
}
// I/O operation completed
if (sig & io_mask) {
struct IOExtSer *io;
while (io = (struct IOExtSer *)GetMsg(io_port)) {
if (io == read_io) {
D(bug("read_io complete, %ld bytes received, error %ld\n", read_io->IOSer.io_Actual, read_io->IOSer.io_Error));
uint32 pb = (uint32)read_io->IOSer.io_Message.mn_Node.ln_Name;
#if MONITOR
bug("Receiving serial data:\n");
uint8 *adr = Mac2HostAddr(ReadMacInt32(msg->pb + ioBuffer));
for (int i=0; i<read_io->IOSer.io_Actual; i++) {
bug("%02lx ", adr[i]);
}
bug("\n");
#endif
WriteMacInt32(pb + ioActCount, read_io->IOSer.io_Actual);
obj->conv_error(read_io, obj->input_dt);
obj->read_done = true;
SetInterruptFlag(INTFLAG_SERIAL);
TriggerInterrupt();
} else if (io == write_io) {
D(bug("write_io complete, %ld bytes sent, error %ld\n", write_io->IOSer.io_Actual, write_io->IOSer.io_Error));
uint32 pb = (uint32)write_io->IOSer.io_Message.mn_Node.ln_Name;
WriteMacInt32(pb + ioActCount, write_io->IOSer.io_Actual);
obj->conv_error(write_io, obj->output_dt);
obj->write_done = true;
SetInterruptFlag(INTFLAG_SERIAL);
TriggerInterrupt();
}
}
}
}
quit:
// Close everything
if (opened) {
if (CheckIO((struct IORequest *)write_io) == 0) {
AbortIO((struct IORequest *)write_io);
WaitIO((struct IORequest *)write_io);
}
if (CheckIO((struct IORequest *)read_io) == 0) {
AbortIO((struct IORequest *)read_io);
WaitIO((struct IORequest *)read_io);
}
CloseDevice((struct IORequest *)read_io);
}
if (control_io)
DeleteIORequest(control_io);
if (write_io)
DeleteIORequest(write_io);
if (read_io)
DeleteIORequest(read_io);
if (control_port)
DeleteMsgPort(control_port);
if (io_port)
DeleteMsgPort(io_port);
// Send signal to main task to confirm termination
Forbid();
Signal(MainTask, SIGF_SINGLE);
}
static __saveds void net_func(void)
{
const char *str;
BYTE od_error;
struct MsgPort *write_port = NULL, *control_port = NULL;
struct IOSana2Req *write_io = NULL, *control_io = NULL;
bool opened = false;
ULONG read_mask = 0, write_mask = 0, proc_port_mask = 0;
struct Sana2DeviceQuery query_data = {sizeof(Sana2DeviceQuery)};
ULONG buffer_tags[] = {
S2_CopyToBuff, (uint32)copy_to_buff,
S2_CopyFromBuff, (uint32)copy_from_buff,
TAG_END
};
// Default: error occured
proc_error = true;
// Create message port for communication with main task
proc_port = CreateMsgPort();
if (proc_port == NULL)
goto quit;
proc_port_mask = 1 << proc_port->mp_SigBit;
// Create message ports for device I/O
read_port = CreateMsgPort();
if (read_port == NULL)
goto quit;
read_mask = 1 << read_port->mp_SigBit;
write_port = CreateMsgPort();
if (write_port == NULL)
goto quit;
write_mask = 1 << write_port->mp_SigBit;
control_port = CreateMsgPort();
if (control_port == NULL)
goto quit;
// Create control IORequest
control_io = (struct IOSana2Req *)CreateIORequest(control_port, sizeof(struct IOSana2Req));
if (control_io == NULL)
goto quit;
control_io->ios2_Req.io_Message.mn_Node.ln_Type = 0; // Avoid CheckIO() bug
// Parse device name
char dev_name[256];
ULONG dev_unit;
str = PrefsFindString("ether");
if (str) {
const char *FirstSlash = strchr(str, '/');
const char *LastSlash = strrchr(str, '/');
if (FirstSlash && FirstSlash && FirstSlash != LastSlash) {
// Device name contains path, i.e. "Networks/xyzzy.device"
const char *lp = str;
char *dp = dev_name;
while (lp != LastSlash)
*dp++ = *lp++;
*dp = '\0';
if (strlen(dev_name) < 1)
goto quit;
if (sscanf(LastSlash, "/%ld", &dev_unit) != 1)
goto quit;
} else {
if (sscanf(str, "%[^/]/%ld", dev_name, &dev_unit) != 2)
goto quit;
}
} else
goto quit;
// Open device
control_io->ios2_BufferManagement = buffer_tags;
od_error = OpenDevice((UBYTE *) dev_name, dev_unit, (struct IORequest *)control_io, 0);
if (od_error != 0 || control_io->ios2_Req.io_Device == 0) {
printf("WARNING: OpenDevice(<%s>, unit=%d) returned error %d)\n", (UBYTE *)dev_name, dev_unit, od_error);
goto quit;
}
opened = true;
// Is it Ethernet?
control_io->ios2_Req.io_Command = S2_DEVICEQUERY;
control_io->ios2_StatData = (void *)&query_data;
DoIO((struct IORequest *)control_io);
if (control_io->ios2_Req.io_Error)
goto quit;
if (query_data.HardwareType != S2WireType_Ethernet) {
WarningAlert(GetString(STR_NOT_ETHERNET_WARN));
goto quit;
}
// Yes, create IORequest for writing
write_io = (struct IOSana2Req *)CreateIORequest(write_port, sizeof(struct IOSana2Req));
if (write_io == NULL)
goto quit;
memcpy(write_io, control_io, sizeof(struct IOSana2Req));
write_io->ios2_Req.io_Message.mn_Node.ln_Type = 0; // Avoid CheckIO() bug
write_io->ios2_Req.io_Message.mn_ReplyPort = write_port;
// Configure Ethernet
control_io->ios2_Req.io_Command = S2_GETSTATIONADDRESS;
DoIO((struct IORequest *)control_io);
memcpy(ether_addr, control_io->ios2_DstAddr, 6);
memcpy(control_io->ios2_SrcAddr, control_io->ios2_DstAddr, 6);
control_io->ios2_Req.io_Command = S2_CONFIGINTERFACE;
DoIO((struct IORequest *)control_io);
D(bug("Ethernet address %08lx %08lx\n", *(uint32 *)ether_addr, *(uint16 *)(ether_addr + 4)));
// Initialization went well, inform main task
proc_error = false;
Signal(MainTask, SIGF_SINGLE);
// Main loop
for (;;) {
// Wait for I/O and messages (CTRL_C is used for quitting the task)
ULONG sig = Wait(proc_port_mask | read_mask | write_mask | SIGBREAKF_CTRL_C);
// Main task wants to quit us
if (sig & SIGBREAKF_CTRL_C)
break;
// Main task sent a command to us
if (sig & proc_port_mask) {
struct NetMessage *msg;
while (msg = (NetMessage *)GetMsg(proc_port)) {
D(bug("net_proc received %08lx\n", msg->what));
switch (msg->what) {
case MSG_CLEANUP:
remove_all_protocols();
break;
case MSG_ADD_MULTI:
control_io->ios2_Req.io_Command = S2_ADDMULTICASTADDRESS;
Mac2Host_memcpy(control_io->ios2_SrcAddr, msg->pointer + eMultiAddr, 6);
DoIO((struct IORequest *)control_io);
if (control_io->ios2_Req.io_Error == S2ERR_NOT_SUPPORTED) {
WarningAlert(GetString(STR_NO_MULTICAST_WARN));
msg->result = noErr;
} else if (control_io->ios2_Req.io_Error)
msg->result = eMultiErr;
else
msg->result = noErr;
break;
case MSG_DEL_MULTI:
control_io->ios2_Req.io_Command = S2_DELMULTICASTADDRESS;
Mac2Host_memcpy(control_io->ios2_SrcAddr, msg->pointer + eMultiAddr, 6);
DoIO((struct IORequest *)control_io);
if (control_io->ios2_Req.io_Error)
msg->result = eMultiErr;
else
msg->result = noErr;
break;
case MSG_ATTACH_PH: {
uint16 type = msg->type;
uint32 handler = msg->pointer;
// Protocol of that type already installed?
NetProtocol *p = (NetProtocol *)prot_list.lh_Head, *next;
while ((next = (NetProtocol *)p->ln_Succ) != NULL) {
if (p->type == type) {
msg->result = lapProtErr;
goto reply;
}
p = next;
}
// Allocate NetProtocol, set type and handler
p = (NetProtocol *)AllocMem(sizeof(NetProtocol), MEMF_PUBLIC);
if (p == NULL) {
msg->result = lapProtErr;
goto reply;
}
p->type = type;
p->handler = handler;
// Set up and submit read requests
for (int i=0; i<NUM_READ_REQUESTS; i++) {
memcpy(p->read_io + i, control_io, sizeof(struct IOSana2Req));
p->read_io[i].ios2_Req.io_Message.mn_Node.ln_Name = (char *)p; // Hide pointer to NetProtocol in node name
p->read_io[i].ios2_Req.io_Message.mn_Node.ln_Type = 0; // Avoid CheckIO() bug
p->read_io[i].ios2_Req.io_Message.mn_ReplyPort = read_port;
p->read_io[i].ios2_Req.io_Command = CMD_READ;
p->read_io[i].ios2_PacketType = type;
p->read_io[i].ios2_Data = p->read_buf[i];
p->read_io[i].ios2_Req.io_Flags = SANA2IOF_RAW;
BeginIO((struct IORequest *)(p->read_io + i));
}
// Add protocol to list
AddTail(&prot_list, p);
// Everything OK
msg->result = noErr;
break;
}
case MSG_DETACH_PH: {
uint16 type = msg->type;
msg->result = lapProtErr;
NetProtocol *p = (NetProtocol *)prot_list.lh_Head, *next;
while ((next = (NetProtocol *)p->ln_Succ) != NULL) {
if (p->type == type) {
remove_protocol(p);
msg->result = noErr;
break;
}
p = next;
}
break;
}
case MSG_WRITE: {
// Get pointer to Write Data Structure
uint32 wds = msg->pointer;
write_io->ios2_Data = (void *)wds;
// Calculate total packet length
long len = 0;
uint32 tmp = wds;
for (;;) {
int16 w = ReadMacInt16(tmp);
if (w == 0)
break;
len += w;
tmp += 6;
}
write_io->ios2_DataLength = len;
// Get destination address
uint32 hdr = ReadMacInt32(wds + 2);
Mac2Host_memcpy(write_io->ios2_DstAddr, hdr, 6);
// Get packet type
uint32 type = ReadMacInt16(hdr + 12);
if (type <= 1500)
type = 0; // 802.3 packet
write_io->ios2_PacketType = type;
// Multicast/broadcard packet?
if (write_io->ios2_DstAddr[0] & 1) {
if (*(uint32 *)(write_io->ios2_DstAddr) == 0xffffffff && *(uint16 *)(write_io->ios2_DstAddr + 4) == 0xffff)
write_io->ios2_Req.io_Command = S2_BROADCAST;
else
write_io->ios2_Req.io_Command = S2_MULTICAST;
} else
write_io->ios2_Req.io_Command = CMD_WRITE;
// Send packet
write_done = false;
write_io->ios2_Req.io_Flags = SANA2IOF_RAW;
BeginIO((IORequest *)write_io);
break;
}
}
reply: D(bug(" net_proc replying\n"));
ReplyMsg(msg);
}
}
// Packet received
if (sig & read_mask) {
D(bug(" packet received, triggering Ethernet interrupt\n"));
SetInterruptFlag(INTFLAG_ETHER);
TriggerInterrupt();
}
// Packet write completed
if (sig & write_mask) {
GetMsg(write_port);
WriteMacInt32(ether_data + ed_Result, write_io->ios2_Req.io_Error ? excessCollsns : 0);
write_done = true;
D(bug(" packet write done, triggering Ethernet interrupt\n"));
SetInterruptFlag(INTFLAG_ETHER);
TriggerInterrupt();
}
}
quit:
// Close everything
remove_all_protocols();
if (opened) {
if (CheckIO((struct IORequest *)write_io) == 0) {
AbortIO((struct IORequest *)write_io);
WaitIO((struct IORequest *)write_io);
}
CloseDevice((struct IORequest *)control_io);
}
if (write_io)
DeleteIORequest(write_io);
if (control_io)
DeleteIORequest(control_io);
if (control_port)
DeleteMsgPort(control_port);
if (write_port)
DeleteMsgPort(write_port);
if (read_port)
DeleteMsgPort(read_port);
// Send signal to main task to confirm termination
Forbid();
Signal(MainTask, SIGF_SINGLE);
}