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DOSExtens.i
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1991-05-07
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{
DOSExtens.i for PCQ Pascal
DOS structures not needed for the casual AmigaDOS user
}
{$I "Include:Exec/Tasks.i"}
{$I "Include:Exec/Ports.i"}
{$I "Include:Exec/Libraries.i"}
{$I "Include:Libraries/DOS.i"}
Type
{ All DOS processes have this structure }
{ Create and Device Proc returns pointer to the MsgPort in this structure }
{ dev_proc = Address(Integer(DeviceProc()) - SizeOf(Task)) }
Process = record
pr_Task : Task;
pr_MsgPort : MsgPort; { This is BPTR address from DOS functions }
pr_Pad : Short; { Remaining variables on 4 byte boundaries }
pr_SegList : BPTR; { Array of seg lists used by this process }
pr_StackSize : Integer; { Size of process stack in bytes }
pr_GlobVec : Address; { Global vector for this process (BCPL) }
pr_TaskNum : Integer; { CLI task number of zero if not a CLI }
pr_StackBase : BPTR; { Ptr to high memory end of process stack }
pr_Result2 : Integer; { Value of secondary result from last call }
pr_CurrentDir : BPTR; { Lock associated with current directory }
pr_CIS : BPTR; { Current CLI Input Stream }
pr_COS : BPTR; { Current CLI Output Stream }
pr_ConsoleTask : Address; { Console handler process for current window}
pr_FileSystemTask : Address; { File handler process for current drive }
pr_CLI : BPTR; { pointer to ConsoleLineInterpreter }
pr_ReturnAddr : Address; { pointer to previous stack frame }
pr_PktWait : Address; { Function to be called when awaiting msg }
pr_WindowPtr : Address; { Window for error printing }
end;
ProcessPtr = ^Process;
{ The long word address (BPTR) of this structure is returned by
* Open() and other routines that return a file. You need only worry
* about this struct to do async io's via PutMsg() instead of
* standard file system calls }
FileHandleRec = record
fh_Link : MessagePtr; { EXEC message }
fh_Port : MsgPortPtr; { Reply port for the packet }
fh_Type : MsgPortPtr; { Port to do PutMsg() to
Address is negative if a plain file }
fh_Buf : Integer;
fh_Pos : Integer;
fh_End : Integer;
fh_Func1 : Integer;
fh_Func2 : Integer;
fh_Func3 : Integer;
fh_Arg1 : Integer;
fh_Arg2 : Integer;
end;
FileHandlePtr = ^FileHandleRec;
{ This is the extension to EXEC Messages used by DOS }
DOSPacket = record
dp_Link : MessagePtr; { EXEC message }
dp_Port : MsgPortPtr; { Reply port for the packet }
{ Must be filled in each send. }
dp_Type : Integer; { See ACTION_... below and
* 'R' means Read, 'W' means Write to the
* file system }
dp_Res1 : Integer; { For file system calls this is the result
* that would have been returned by the
* function, e.g. Write ('W') returns actual
* length written }
dp_Res2 : Integer; { For file system calls this is what would
* have been returned by IoErr() }
dp_Arg1 : Integer;
dp_Arg2 : Integer;
dp_Arg3 : Integer;
dp_Arg4 : Integer;
dp_Arg5 : Integer;
dp_Arg6 : Integer;
dp_Arg7 : Integer;
end;
DOSPacketPtr = ^DOSPacket;
{ A Packet does not require the Message to be before it in memory, but
* for convenience it is useful to associate the two.
* Also see the function init_std_pkt for initializing this structure }
StandardPacket = record
sp_Msg : Message;
sp_Pkt : DOSPacket;
end;
StandardPacketPtr = ^StandardPacket;
Const
{ Packet types }
ACTION_NIL = 0;
ACTION_GET_BLOCK = 2; { OBSOLETE }
ACTION_SET_MAP = 4;
ACTION_DIE = 5;
ACTION_EVENT = 6;
ACTION_CURRENT_VOLUME = 7;
ACTION_LOCATE_OBJECT = 8;
ACTION_RENAME_DISK = 9;
ACTION_WRITE = $57; { 'W' }
ACTION_READ = $52; { 'R' }
ACTION_FREE_LOCK = 15;
ACTION_DELETE_OBJECT = 16;
ACTION_RENAME_OBJECT = 17;
ACTION_MORE_CACHE = 18;
ACTION_COPY_DIR = 19;
ACTION_WAIT_CHAR = 20;
ACTION_SET_PROTECT = 21;
ACTION_CREATE_DIR = 22;
ACTION_EXAMINE_OBJECT = 23;
ACTION_EXAMINE_NEXT = 24;
ACTION_DISK_INFO = 25;
ACTION_INFO = 26;
ACTION_FLUSH = 27;
ACTION_SET_COMMENT = 28;
ACTION_PARENT = 29;
ACTION_TIMER = 30;
ACTION_INHIBIT = 31;
ACTION_DISK_TYPE = 32;
ACTION_DISK_CHANGE = 33;
ACTION_SET_DATE = 34;
ACTION_SCREEN_MODE = 994;
ACTION_READ_RETURN = 1001;
ACTION_WRITE_RETURN = 1002;
ACTION_SEEK = 1008;
ACTION_FINDUPDATE = 1004;
ACTION_FINDINPUT = 1005;
ACTION_FINDOUTPUT = 1006;
ACTION_END = 1007;
ACTION_TRUNCATE = 1022; { fast file system only }
ACTION_WRITE_PROTECT = 1023; { fast file system only }
{ DOS library node structure.
* This is the data at positive offsets from the library node.
* Negative offsets from the node is the jump table to DOS functions
* node = (struct DosLibrary *) OpenLibrary( "dos.library" .. ) }
Type
DOSLibrary = record
dl_lib : Library;
dl_Root : Address; { Pointer to RootNode, described below }
dl_GV : Address; { Pointer to BCPL global vector }
dl_A2 : Integer; { Private register dump of DOS }
dl_A5 : Integer;
dl_A6 : Integer;
end;
DOSLibraryPtr = ^DOSLibrary;
RootNode = record
rn_TaskArray : BPTR; { [0] is max number of CLI's
[1] is APTR to process id of CLI 1
[n] is APTR to process id of CLI n }
rn_ConsoleSegment : BPTR; { SegList for the CLI }
rn_Time : DateStampRec; { Current time }
rn_RestartSeg : Integer; { SegList for the disk validator process }
rn_Info : BPTR; { Pointer ot the Info structure }
rn_FileHandlerSegment : BPTR; { segment for a file handler }
end;
RootNodePtr = ^RootNode;
DOSInfo = record
di_McName : BPTR; { Network name of this machine; currently 0 }
di_DevInfo : BPTR; { Device List }
di_Devices : BPTR; { Currently zero }
di_Handlers : BPTR; { Currently zero }
di_NetHand : Address; { Network handler processid; currently zero }
end;
DOSInfoPtr = ^DOSInfo;
{ DOS Processes started from the CLI via RUN or NEWCLI have this additional
* set to data associated with them }
CommandLineInterface = record
cli_Result2 : Integer; { Value of IoErr from last command }
cli_SetName : BSTR; { Name of current directory }
cli_CommandDir : BPTR; { Lock associated with command directory }
cli_ReturnCode : Integer; { Return code from last command }
cli_CommandName : BSTR; { Name of current command }
cli_FailLevel : Integer; { Fail level (set by FAILAT) }
cli_Prompt : BSTR; { Current prompt (set by PROMPT) }
cli_StandardInput : BPTR; { Default (terminal) CLI input }
cli_CurrentInput : BPTR; { Current CLI input }
cli_CommandFile : BSTR; { Name of EXECUTE command file }
cli_Interactive : Integer; { Boolean; True if prompts required }
cli_Background : Integer; { Boolean; True if CLI created by RUN }
cli_CurrentOutput : BPTR; { Current CLI output }
cli_DefaultStack : Integer; { Stack size to be obtained in long words }
cli_StandardOutput : BPTR; { Default (terminal) CLI output }
cli_Module : BPTR; { SegList of currently loaded command }
end;
CommandLineInterfacePtr = ^CommandLineInterface;
{ This structure can take on different values depending on whether it is
* a device, an assigned directory, or a volume. Below is the structure
* reflecting volumes only. Following that is the structure representing
* only devices.
}
{ structure representing a volume }
DeviceList = record
dl_Next : BPTR; { bptr to next device list }
dl_Type : Integer; { see DLT below }
dl_Task : MsgPortPtr; { ptr to handler task }
dl_Lock : BPTR; { not for volumes }
dl_VolumeDate : DateStampRec; { creation date }
dl_LockList : BPTR; { outstanding locks }
dl_DiskType : Integer; { 'DOS', etc }
dl_unused : Integer;
dl_Name : BSTR; { bptr to bcpl name }
end;
DeviceListPtr = ^DeviceList;
{ device structure (same as the DeviceNode structure in filehandler.h) }
DevInfo = record
dvi_Next : BPTR;
dvi_Type : Integer;
dvi_Task : Address;
dvi_Lock : BPTR;
dvi_Handler : BSTR;
dvi_StackSize : Integer;
dvi_Priority : Integer;
dvi_Startup : Integer;
dvi_SegList : BPTR;
dvi_GlobVec : BSTR;
dvi_Name : BSTR;
end;
DevInfoPtr = ^DevInfo;
{ combined structure for devices, assigned directories, volumes }
Const
{ definitions for dl_Type }
DLT_DEVICE = 0;
DLT_DIRECTORY = 1;
DLT_VOLUME = 2;
Type
{ a lock structure, as returned by Lock() or DupLock() }
FileLockRec = record
fl_Link : BPTR; { bcpl pointer to next lock }
fl_Key : Integer; { disk block number }
fl_Access : Integer; { exclusive or shared }
fl_Task : MsgPortPtr; { handler task's port }
fl_Volume : BPTR; { bptr to a DeviceList }
end;
FileLockPtr = ^FileLockRec;
Function CreateProc(name : String; pri : Integer;
segment : BPTR; stackSize : Integer) : ProcessPtr;
External;
Function DeviceProc(name : String) : ProcessPtr;
External;
Function LoadSeg(name : String) : BPTR;
External;
Procedure UnLoadSeg(segment : BPTR);
External;