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termlite.lzh
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termLite
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termLite.c
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1991-12-31
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/* $Revision Header * Header built automatically - do not edit! *************
*
* (C) Copyright 1990 by Olaf 'Olsen' Barthel & MXM
*
* Name .....: termLite.c
* Created ..: Saturday 8-Jun-91 12:32
* Revision .: 0
*
* Date Author Comment
* ========= ======== ====================
* 08-Jun-91 Olsen Created this file!
*
* $Revision Header ********************************************************/
/* System includes. */
#include <intuition/intuitionbase.h>
#include <workbench/workbench.h>
#include <workbench/startup.h>
#include <devices/console.h>
#include <devices/conunit.h>
#include <devices/serial.h>
#include <exec/execbase.h>
#include <dos/dosextens.h>
#include <exec/memory.h>
#include <dos/rdargs.h>
#include <clib/intuition_protos.h>
#include <clib/graphics_protos.h>
#include <clib/icon_protos.h>
#include <clib/exec_protos.h>
#include <clib/dos_protos.h>
#include <string.h>
#include <stdarg.h>
/* A handy macro to access AbsExecBase. */
#define SysBase (*(struct ExecBase **)4L)
/* The following pragmas provide the nessary support
* for reentrancy: they permit to keep the library bases
* defined locally.
*/
/* exec.library calls. */
#pragma libcall SysBase WaitPort 180 801
#pragma libcall SysBase GetMsg 174 801
#pragma libcall SysBase ReplyMsg 17a 901
#pragma libcall SysBase CloseLibrary 19e 901
#pragma libcall SysBase OpenLibrary 228 902
#pragma libcall SysBase AllocVec 2ac 1002
#pragma libcall SysBase FreeVec 2b2 901
#pragma libcall SysBase Forbid 84 0
#pragma libcall SysBase SendIO 1ce 901
#pragma libcall SysBase WaitIO 1da 901
#pragma libcall SysBase AbortIO 1e0 901
#pragma libcall SysBase Wait 13e 1
#pragma libcall SysBase DoIO 1c8 901
#pragma libcall SysBase OpenDevice 1bc 190804
#pragma libcall SysBase CloseDevice 1c2 901
#pragma libcall SysBase CreateIORequest 28e 802
#pragma libcall SysBase DeleteIORequest 294 801
#pragma libcall SysBase CreateMsgPort 29a 0
#pragma libcall SysBase DeleteMsgPort 2a0 801
#pragma libcall SysBase CopyMem 270 9803
/* dos.library calls. */
#pragma libcall DOSBase ReadArgs 31E 32103
#pragma libcall DOSBase FreeArgs 35A 101
#pragma libcall DOSBase StrToLong 330 2102
#pragma libcall DOSBase VPrintf 3BA 2102
/* icon.library calls. */
#pragma libcall IconBase GetDiskObject 4E 801
#pragma libcall IconBase FreeDiskObject 5A 801
#pragma libcall IconBase FindToolType 60 9802
/* intuition.library calls. */
#pragma libcall IntuitionBase LockPubScreen 1FE 801
#pragma libcall IntuitionBase UnlockPubScreen 204 9802
#pragma libcall IntuitionBase OpenWindowTagList 25E 9802
#pragma libcall IntuitionBase CloseWindow 48 801
#pragma libcall IntuitionBase EasyRequestArgs 24C BA9804
/* Signal bits to wait for. */
#define SIG_SERIAL (1 << SerReadPort -> mp_SigBit)
#define SIG_CONSOLE (1 << ConReadPort -> mp_SigBit)
#define SIG_WINDOW (1 << Window -> UserPort -> mp_SigBit)
/* Size of the console read buffer and the serial read buffer. */
#define CON_READ_SIZE 256
#define SER_READ_SIZE 1024
/* Argument vector offsets. */
enum { ARG_DEVICE,ARG_UNIT };
/* termLite():
*
* termLite main program, handles all those neat
* IO functions in just a single routine.
*/
LONG __saveds
termLite(VOID)
{
/* Window definitions, just a lookup table, will get
* copied to local stack vars and modified lateron.
* (to save the relocs).
*/
STATIC ULONG DefaultTags[20 * 2 + 1] =
{
WA_Top, NULL,
WA_Width, NULL,
WA_Height, NULL,
WA_MinHeight, NULL,
WA_Title, NULL,
WA_MinWidth, NULL,
WA_MaxWidth, ~0,
WA_MaxHeight, ~0,
WA_Left, 0,
WA_SimpleRefresh, TRUE,
WA_SizeGadget, TRUE,
WA_DragBar, TRUE,
WA_DepthGadget, TRUE,
WA_CloseGadget, TRUE,
WA_Activate, TRUE,
WA_RMBTrap, TRUE,
WA_SizeBBottom, TRUE,
WA_AutoAdjust, TRUE,
WA_RMBTrap, TRUE,
WA_IDCMP, IDCMP_CLOSEWINDOW,
TAG_DONE
};
/* Library bases. */
struct DosLibrary *DOSBase;
struct IntuitionBase *IntuitionBase;
/* Workbench data. */
struct Process *ThisProcess;
struct WBStartup *WBenchMsg;
/* Our window. */
struct Window *Window;
/* Serial IO data. */
struct IOExtSer *SerReadRequest;
struct IOExtSer *SerWriteRequest;
struct MsgPort *SerReadPort;
struct MsgPort *SerWritePort;
APTR SerReadBuffer;
/* Console IO data. */
struct IOStdReq *ConReadRequest;
struct IOStdReq *ConWriteRequest;
struct MsgPort *ConReadPort;
struct MsgPort *ConWritePort;
APTR ConReadBuffer;
/* Global result code. */
LONG Result = RETURN_FAIL;
/* Set up the process pointer. */
ThisProcess = (struct Process *)SysBase -> ThisTask;
/* Wait for Workbench startup packet. */
if(!ThisProcess -> pr_CLI)
{
WaitPort(&ThisProcess -> pr_MsgPort);
WBenchMsg = (struct WBStartup *)GetMsg(&ThisProcess -> pr_MsgPort);
}
else
WBenchMsg = NULL;
/* Are we running under control of Kickstart 2.0? */
if(SysBase -> LibNode . lib_Version >= 37)
{
/* Open dos.library. */
if(DOSBase = (struct DosLibrary *)OpenLibrary("dos.library",37))
{
/* Open intuition.library. */
if(IntuitionBase = (struct IntuitionBase *)OpenLibrary("intuition.library",37))
{
UBYTE DeviceName[40];
LONG UnitNumber;
/* Fill in the default serial device
* name.
*/
strcpy(DeviceName,SERIALNAME);
/* And set the default unit number
* to zero.
*/
UnitNumber = 0;
/* Take a look at the tool icon
* if run from Workbench.
*/
if(WBenchMsg)
{
struct Library *IconBase;
/* Open icon.library. */
if(IconBase = OpenLibrary("icon.library",0))
{
struct DiskObject *DiskObject;
/* Read the tool icon. */
if(DiskObject = GetDiskObject(WBenchMsg -> sm_ArgList -> wa_Name))
{
UBYTE *Entry;
/* Check for custom device name. */
if(Entry = FindToolType(DiskObject -> do_ToolTypes,"DEVICE"))
strcpy(DeviceName,Entry);
/* Check for custom device number. */
if(Entry = FindToolType(DiskObject -> do_ToolTypes,"UNIT"))
StrToLong(Entry,&UnitNumber);
/* Release the icon. */
FreeDiskObject(DiskObject);
}
/* Close the library. */
CloseLibrary(IconBase);
}
}
else
{
UBYTE **ArgArray;
/* Allocate argument array. */
if(ArgArray = (UBYTE **)AllocVec(sizeof(UBYTE *) * 2,MEMF_PUBLIC|MEMF_CLEAR))
{
struct RDArgs *ArgsPtr;
/* Read the startup args if any. */
if(ArgsPtr = (struct RDArgs *)ReadArgs("D=Device/K,U=Unit/N/K",(LONG *)ArgArray,NULL))
{
/* Set custom device name. */
if(ArgArray[ARG_DEVICE])
strcpy(DeviceName,ArgArray[ARG_DEVICE]);
/* Set custom unit number. */
if(ArgArray[ARG_UNIT])
UnitNumber = *(LONG *)ArgArray[ARG_UNIT];
/* Free the args. */
FreeArgs(ArgsPtr);
}
/* Free the argument array. */
FreeVec(ArgArray);
}
}
/* Allocate the serial read buffer. */
if(SerReadBuffer = AllocVec(SER_READ_SIZE,MEMF_PUBLIC))
{
/* Create the serial read port. */
if(SerReadPort = CreateMsgPort())
{
/* Create the serial write port. */
if(SerWritePort = CreateMsgPort())
{
/* Create the serial read request. */
if(SerReadRequest = (struct IOExtSer *)CreateIORequest(SerReadPort,sizeof(struct IOExtSer)))
{
/* Create the serial write request. */
if(SerWriteRequest = (struct IOExtSer *)AllocVec(sizeof(struct IOExtSer),MEMF_PUBLIC))
{
/* Open the device in shared mode. */
SerReadRequest -> io_SerFlags |= SERF_SHARED;
if(!OpenDevice(DeviceName,UnitNumber,&SerReadRequest -> IOSer,0))
{
/* Clone the IORequest and fill in the
* approriate reply port for the write
* request.
*/
CopyMem(SerReadRequest,SerWriteRequest,sizeof(struct IOExtSer));
SerWriteRequest -> IOSer . io_Message . mn_ReplyPort = SerWritePort;
/* Allocate the console read buffer. */
if(ConReadBuffer = AllocVec(CON_READ_SIZE,MEMF_PUBLIC))
{
struct Screen *DefaultScreen;
/* Lock the default public screen. */
if(DefaultScreen = LockPubScreen(NULL))
{
ULONG StackTags[20 * 2 + 1];
/* Copy window sestup tags to local
* stack array and initialize it
* according to the size and
* characteristics of the default
* screen.
*/
CopyMem(DefaultTags,StackTags,sizeof(DefaultTags));
StackTags[ 1] = DefaultScreen -> BarHeight + 1;
StackTags[ 3] = DefaultScreen -> Width;
StackTags[ 5] = (DefaultScreen -> Font -> ta_YSize) * 17 + DefaultScreen -> WBorTop + DefaultScreen -> WBorBottom + 1;
StackTags[ 7] = DefaultScreen -> Font -> ta_YSize + DefaultScreen -> WBorTop + DefaultScreen -> WBorBottom - 1;
StackTags[ 9] = (ULONG)("termLite © Copyright 1991 by MXM");
StackTags[11] = DefaultScreen -> Width >> 1;
/* Open the window. */
if(Window = OpenWindowTagList(NULL,(struct TagItem *)&StackTags[0]))
{
/* Create the console read port. */
if(ConReadPort = CreateMsgPort())
{
/* Create the console write port. */
if(ConWritePort = CreateMsgPort())
{
/* Create the console read
* request.
*/
if(ConReadRequest = (struct IOStdReq *)CreateIORequest(ConReadPort,sizeof(struct IOStdReq)))
{
/* Create the console write request. */
if(ConWriteRequest = (struct IOStdReq *)AllocVec(sizeof(struct IOStdReq),MEMF_PUBLIC))
{
/* Set up the console startup information and
* open the approriate device.
*/
ConReadRequest -> io_Data = Window;
ConReadRequest -> io_Length = sizeof(struct Window *);
/* We want the character mapped simple refresh window
* including cut & paste.
*/
if(!OpenDevice("console.device",CONU_SNIPMAP,ConReadRequest,0))
{
BYTE Terminated = FALSE;
ULONG SignalSet;
/* Clone the IORequest and
* fill in the console write
* port.
*/
CopyMem(ConReadRequest,ConWriteRequest,sizeof(struct IOStdReq));
ConWriteRequest -> io_Message . mn_ReplyPort = ConWritePort;
/* Unlock the default public
* screen, there probably
* is no need to keep
* it open (our window
* will keep it from
* closing).
*/
UnlockPubScreen(NULL,DefaultScreen);
DefaultScreen = NULL;
/* Request characters from the console window. */
ConReadRequest -> io_Command = CMD_READ;
ConReadRequest -> io_Length = CON_READ_SIZE - 1;
ConReadRequest -> io_Data = ConReadBuffer;
SendIO(ConReadRequest);
/* Request a single byte from the
* serial line.
*/
SerReadRequest -> IOSer . io_Command = CMD_READ;
SerReadRequest -> IOSer . io_Length = 1;
SerReadRequest -> IOSer . io_Data = SerReadBuffer;
SendIO(&SerReadRequest -> IOSer);
Result = RETURN_OK;
/* Go into loop until the
* user hits the close
* gadget.
*/
while(!Terminated)
{
/* Wait for signals. */
SignalSet = Wait(SIG_SERIAL | SIG_CONSOLE | SIG_WINDOW);
/* Did we get a message from the window? */
if(SignalSet & SIG_WINDOW)
{
struct IntuiMessage *Massage;
/* Pick up the messages and reply them. The
* only message type we expect is the
* IDCMP_CLOSEWINDOW type.
*/
while(Massage = (struct IntuiMessage *)GetMsg(Window -> UserPort))
{
ReplyMsg(&Massage -> ExecMessage);
Terminated = TRUE;
}
}
/* Did we get a message from the
* console?
*/
if(SignalSet & SIG_CONSOLE)
{
/* Remove the IORequest from
* the message list.
*/
WaitIO(ConReadRequest);
/* Send the resulting characters to the
* serial device.
*/
SerWriteRequest -> IOSer . io_Command = CMD_WRITE;
SerWriteRequest -> IOSer . io_Data = ConReadBuffer;
SerWriteRequest -> IOSer . io_Length = ConReadRequest -> io_Actual;
DoIO(&SerWriteRequest -> IOSer);
/* Post another request to the
* console.
*/
ConReadRequest -> io_Command = CMD_READ;
ConReadRequest -> io_Length = CON_READ_SIZE - 1;
ConReadRequest -> io_Data = ConReadBuffer;
SendIO(ConReadRequest);
}
/* Did we get a signal from
* the serial line?
*/
if(SignalSet & SIG_SERIAL)
{
LONG Size;
/* Remove IORequest from the
* message list.
*/
WaitIO(&SerReadRequest -> IOSer);
/* Echo the single character to
* the console.
*/
ConWriteRequest -> io_Command = CMD_WRITE;
ConWriteRequest -> io_Data = SerReadBuffer;
ConWriteRequest -> io_Length = 1;
DoIO(ConWriteRequest);
/* Inquire how many characters
* are still pending at the
* serial port.
*/
SerReadRequest -> IOSer . io_Command = SDCMD_QUERY;
DoIO(&SerReadRequest -> IOSer);
/* If there are any, transfer them to
* the serial line.
*/
if(Size = SerReadRequest -> IOSer . io_Actual)
{
LONG Frag;
/* We need to transfer the block in small
* fragments since the serial read buffer
* may be smaller than the amount of data
* to be read.
*/
while(Size)
{
/* Determine number of bytes to read. */
Frag = Size > SER_READ_SIZE ? SER_READ_SIZE : Size;
/* Read the bytes. */
SerReadRequest -> IOSer . io_Command = CMD_READ;
SerReadRequest -> IOSer . io_Data = SerReadBuffer;
SerReadRequest -> IOSer . io_Length = Frag;
DoIO(&SerReadRequest -> IOSer);
/* Transfer them to the window. */
ConWriteRequest -> io_Command = CMD_WRITE;
ConWriteRequest -> io_Data = SerReadBuffer;
ConWriteRequest -> io_Length = Frag;
DoIO(ConWriteRequest);
Size -= Frag;
}
}
/* Post a request for another byte. */
SerReadRequest -> IOSer . io_Command = CMD_READ;
SerReadRequest -> IOSer . io_Data = SerReadBuffer;
SerReadRequest -> IOSer . io_Length = 1;
SendIO(&SerReadRequest -> IOSer);
}
}
/* The program has been flagged to
* to close down. Abort the pending
* IORequestes and close the
* console device.
*/
AbortIO(ConReadRequest);
WaitIO(ConReadRequest);
AbortIO(&SerReadRequest -> IOSer);
WaitIO(&SerReadRequest -> IOSer);
CloseDevice(ConReadRequest);
}
/* Free the console write request. */
FreeVec(ConWriteRequest);
}
/* Free the console read request. */
DeleteIORequest(ConReadRequest);
}
/* Delete the console write port. */
DeleteMsgPort(ConWritePort);
}
/* Delete the console read port. */
DeleteMsgPort(ConReadPort);
}
/* Close the window. */
CloseWindow(Window);
}
/* Unlock the default public screen
* if necessary.
*/
if(DefaultScreen)
UnlockPubScreen(NULL,DefaultScreen);
}
/* Free the console read buffer. */
FreeVec(ConReadBuffer);
}
/* Close the serial device. */
CloseDevice(&SerReadRequest -> IOSer);
}
/* Free the serial write request. */
FreeVec(SerWriteRequest);
}
/* Free the serial read request. */
DeleteIORequest(SerReadRequest);
}
/* Delete the serial write port. */
DeleteMsgPort(SerWritePort);
}
/* Delete the serial read port. */
DeleteMsgPort(SerReadPort);
}
/* Delete the serial read buffer. */
FreeVec(SerReadBuffer);
}
/* Close intuition.library. */
CloseLibrary(&IntuitionBase -> LibNode);
}
/* Close dos.library. */
CloseLibrary(&DOSBase -> dl_lib);
}
}
/* Reply the startup packet if necessary. */
if(WBenchMsg)
{
Forbid();
ReplyMsg(&WBenchMsg -> sm_Message);
}
/* Return the result. */
return(Result);
}
