compiler/include/dos/dosextens.h

   1 #ifndef DOS_DOSEXTENS_H
   2 #define DOS_DOSEXTENS_H
   3
   4 /*
   5     Copyright © 1995-2001, The AROS Development Team. All rights reserved.
   6     $Id$
   7
   8     Desc: LibBase and some important structures
   9     Lang: English
  10 */
  11
  12 #ifndef AROS_CONFIG_H
  13 #   include <aros/config.h>
  14 #endif
  15 #ifndef EXEC_TYPES_H
  16 #   include <exec/types.h>
  17 #endif
  18 #ifndef EXEC_TASKS_H
  19 #   include <exec/tasks.h>
  20 #endif
  21 #ifndef EXEC_PORTS_H
  22 #   include <exec/ports.h>
  23 #endif
  24 #ifndef EXEC_LIBRARIES_H
  25 #   include <exec/libraries.h>
  26 #endif
  27 #ifndef EXEC_DEVICES_H
  28 #   include <exec/devices.h>
  29 #endif
  30 #ifndef EXEC_SEMAPHORES
  31 #   include <exec/semaphores.h>
  32 #endif
  33 #ifndef DEVICES_TIMER_H
  34 #    include <devices/timer.h>
  35 #endif
  36 #ifndef EXEC_INTERRUPTS_H
  37 #   include <exec/interrupts.h>
  38 #endif
  39 #ifndef DOS_DOS_H
  40 #   include <dos/dos.h>
  41 #endif
  42
  43 /**********************************************************************
  44  ***************************** DosLibrary *****************************
  45  **********************************************************************/
  46
  47 /* This is how the base of dos.library looks like. */
  48 struct DosLibrary
  49 {
  50     /* A normal library-base as defined in <exec/libraries.h>. */
  51     struct Library dl_lib;
  52
  53     struct RootNode * dl_Root;
  54
  55 #if (AROS_FLAVOUR & AROS_FLAVOUR_BINCOMPAT)
  56     /* The following fields are not used by AROS and are just there to
  57        guarantee binary compatibility. DO NOT USE THESE FIELDS IN ANY WAY.
  58        Original names were: dl_GV, dl_A2, dl_A5 and dl_A6 */
  59     APTR              NoAROS2;
  60     LONG              NoAROS3[3];
  61 #endif
  62
  63     /* The following fields are PRIVATE! */
  64     struct ErrorString   * dl_Errors;
  65     struct Device        * dl_TimerBase;
  66     struct Library       * dl_UtilityBase;
  67     struct Library       * dl_IntuitionBase;
  68
  69     /* These are AROS specific extensions. They are all PRIVATE! */
  70     struct timerequest     dl_TimerIO;
  71
  72     struct SignalSemaphore dl_DosListLock;
  73     struct DosList       * dl_DevInfo;
  74     struct ExecBase      * dl_SysBase;
  75     BPTR                   dl_SegList;
  76     struct Device        * dl_NulHandler;
  77     struct Unit          * dl_NulLock;
  78
  79     struct SignalSemaphore dl_LDObjectsListSigSem;
  80     struct List            dl_LDObjectsList;
  81     struct Interrupt       dl_LDHandler;
  82     struct MsgPort       * dl_LDDemonPort;
  83     struct Process       * dl_LDDemonTask;
  84     ULONG                  dl_LDReturn;
  85     BPTR                   dl_SYSLock;
  86
  87 #if 0
  88     ULONG                  dl_ProcCnt;
  89 #endif
  90       /* The flags are the same, as they were in RootNode->rn_Flags. See below
  91          for definitions. */
  92     ULONG                  dl_Flags;
  93
  94     /* Resident segment list **PRIVATE** */
  95     BPTR                   dl_ResList;
  96 };
  97
  98 /* dl_Flags/rn_Flags */
  99 #define RNB_WILDSTAR 24 /* Activate '*' as wildcard character. */
 100 #define RNF_WILDSTAR (1L << RNB_WILDSTAR)
 101
 102
 103 struct RootNode
 104 {
 105       /* (IPTR *) Pointer to an array containing pointers to CLI processes.
 106          The CLI process number is equal to the index of that array. The
 107          first field (index 0) contains the maximal number of CLI processes.
 108          See also rn_CliList. */
 109     BPTR             rn_TaskArray;
 110       /* (void *) Pointer to the SegList for CLIs. */
 111     BPTR             rn_ConsoleSegment;
 112       /* The current time. */
 113     struct DateStamp rn_Time;
 114       /* (APTR) The SegList of the process that handles validation of devices.
 115       */
 116     LONG             rn_RestartSeg;
 117       /* (struct DosInfo *) see below for DosInfo */
 118     BPTR             rn_Info;
 119     BPTR             rn_FileHandlerSegment;
 120       /* List of all CLI processes (struct CliProcList - see below). See also
 121          rn_TaskArray. */
 122     struct MinList   rn_CliList;
 123       /* Message port of boot filesystem. (PRIVATE) */
 124     struct MsgPort * rn_BootProc;
 125       /* (void *) Pointer to the SegList for shells. */
 126     BPTR             rn_ShellSegment;
 127       /* Additional flags (see above). */
 128     LONG             rn_Flags;
 129
 130     /* RootNode arbitrator */
 131     struct SignalSemaphore rn_RootLock;
 132 };
 133
 134
 135 /* Structure that is linked into the rootnode's rn_CliList. Completely
 136    private, of course! ... and it's not compatible to AmigaOS. */
 137 struct CLIInfo
 138 {
 139     struct Node      ci_Node;
 140     struct Process  *ci_Process;
 141 };
 142
 143
 144 /* The following structures in this sections are not used by AROS and may
 145    be removed in the future. So BEWARE, if you use them. */
 146
 147 #if 0
 148
 149 struct DosInfo
 150 {
 151     BPTR di_McName;   /* PRIVATE */
 152     BPTR di_DevInfo;
 153     BPTR di_Devices;
 154     BPTR di_Handlers;
 155     APTR di_NetHand;
 156
 157     /* The following semaphores are PRIVATE. */
 158     struct SignalSemaphore di_DevLock;
 159     struct SignalSemaphore di_EntryLock;
 160     struct SignalSemaphore di_DeleteLock;
 161 };
 162 #define di_ResList di_McName
 163
 164 #endif
 165
 166 /**********************************************************************
 167  ***************************** Processes ******************************
 168  **********************************************************************/
 169
 170 /* Standard process structure. Processes are just extended tasks. */
 171 struct Process
 172 {
 173       /* Embedded task structure as defined in <exec/tasks.h>. */
 174     struct Task pr_Task;
 175
 176       /* Processes standard message-port. Used for various puposes. */
 177     struct MsgPort  pr_MsgPort;
 178     WORD            pr_Pad;     /* PRIVATE */
 179       /* SegList array, used by this process. (void **) */
 180     BPTR            pr_SegList;
 181       /* StackSize of the current process. */
 182     LONG            pr_StackSize;
 183     APTR            pr_GlobVec;
 184       /* CLI process number. This may be 0, in which case the process is not
 185          connected to a CLI. */
 186     LONG            pr_TaskNum;
 187       /* Pointer to upper end of stack. (void *) */
 188     BPTR            pr_StackBase;
 189       /* Secondary return-value, as defined in <dos/dos.h>. As of now this
 190          field is declared PRIVATE. Use IoErr()/SetIoErr() to access it. */
 191     LONG            pr_Result2;
 192       /* Lock of the current directory. As of now this is declared READ-ONLY.
 193          Use CurrentDir() to set it. (struct FileLock *) */
 194     BPTR            pr_CurrentDir;
 195       /* Standard input file. As of now this is declared WRITE-ONLY. Use
 196          Input() to query it. */
 197     BPTR            pr_CIS;
 198       /* Standard output file. As of now this is declared WRITE-ONLY. Use
 199          Output() to query it. */
 200     BPTR            pr_COS;
 201       /* Task to handle the console associated with process. */
 202     APTR            pr_ConsoleTask;
 203       /* The task that is responsible for handling the filesystem. */
 204     APTR            pr_FileSystemTask;
 205       /* CLI the process is connected to. (struct CommandLineInterface *) */
 206     BPTR            pr_CLI;
 207     APTR            pr_ReturnAddr;
 208       /* Function to be called, when process waits for a packet-message. */
 209     APTR            pr_PktWait;
 210       /* Standard-Window of process. */
 211     APTR            pr_WindowPtr;
 212       /* Lock to home-directory of process. (struct FileLock *) */
 213     BPTR            pr_HomeDir;
 214     LONG            pr_Flags; /* see below */
 215
 216       /* Code that is called, when the process exits. pr_ExitData takes an
 217          argument to be passed to this code. */
 218     void   (* pr_ExitCode)();
 219     IPTR      pr_ExitData;
 220       /* Arguments passed to the process from caller. */
 221     STRPTR    pr_Arguments;
 222
 223       /* List of local environment variables. This list should be in
 224          alphabetical order. Multiple entries may have the same name, if they
 225          are of different types. See <dos/var.h> for more information. */
 226     struct MinList pr_LocalVars;
 227     ULONG          pr_ShellPrivate;
 228       /* Standard error file. May be NULL, in which case pr_COS is to be used.
 229          Use this instead of Output() to report errors. */
 230     BPTR           pr_CES;
 231 };
 232
 233 /* pr_Flags (all PRIVATE) They mainly descibe what happens if the process
 234    exits, i.e. which resources the process should clean itself. The flags
 235    are self-explaining. */
 236 #define PRB_FREESEGLIST 0
 237 #define PRB_FREECURRDIR 1
 238 #define PRB_FREECLI     2
 239 #define PRB_CLOSEINPUT  3
 240 #define PRB_CLOSEOUTPUT 4
 241 #define PRB_FREEARGS    5
 242 #define PRB_CLOSEERROR  6
 243 #define PRB_SYNCHRONOUS 7
 244 #define PRB_WAITINGFORCHILD 8 /* This one is subject to change! */
 245
 246 #define PRF_FREESEGLIST (1L << PRB_FREESEGLIST)
 247 #define PRF_FREECURRDIR (1L << PRB_FREECURRDIR)
 248 #define PRF_FREECLI     (1L << PRB_FREECLI)
 249 #define PRF_CLOSEINPUT  (1L << PRB_CLOSEINPUT)
 250 #define PRF_CLOSEOUTPUT (1L << PRB_CLOSEOUTPUT)
 251 #define PRF_FREEARGS    (1L << PRB_FREEARGS)
 252 #define PRF_CLOSEERROR  (1L << PRB_CLOSEERROR)
 253 #define PRF_SYNCHRONOUS (1L << PRB_SYNCHRONOUS)
 254 #define PRF_WAITINGFORCHILD (1L << PRB_WAITINGFORCHILD)
 255
 256 /* Structure used for CLIs and Shells. Allocate this structure with
 257    AllocDosObject() only! */
 258 struct CommandLineInterface
 259 {
 260       /* Secondary error code, set by last command. */
 261     LONG cli_Result2;
 262       /* Name of the current directory. */
 263     BSTR cli_SetName;
 264       /* Lock of the first directory in path. (struct FileLock *) */
 265     BPTR cli_CommandDir;
 266       /* Error code, the last command returned. See <dos/dos.h> for
 267          definitions. */
 268     LONG cli_ReturnCode;
 269       /* Name of the command that is currently executed. */
 270     BSTR cli_CommandName;
 271       /* Fail-Level as set by the command "FailAt". */
 272     LONG cli_FailLevel;
 273       /* Current prompt in the CLI window. */
 274     BSTR cli_Prompt;
 275       /* Standard/Default input file. (struct FileLock *) */
 276     BPTR cli_StandardInput;
 277       /* Current input file. (struct FileLock *) */
 278     BPTR cli_CurrentInput;
 279       /* Name of the file that is currently executed. */
 280     BSTR cli_CommandFile;
 281       /* TRUE if the currently CLI is connected to a controlling terminal,
 282          otherwise FALSE. */
 283     LONG cli_Interactive;
 284       /* FALSE if there is no controlling terminal, otherwise TRUE. */
 285     LONG cli_Background;
 286       /* Current output file. (struct FileLock *) */
 287     BPTR cli_CurrentOutput;
 288       /* Default stack size as set by the command "Stack". */
 289     LONG cli_DefaultStack;
 290       /* Standard/Default output file. (struct FileLock *) */
 291     BPTR cli_StandardOutput;
 292       /* SegList of currently loaded command. */
 293     BPTR cli_Module;
 294
 295        /* Here begins the aros specific part */
 296       /* Standard/Default Error file. (struct FileLock *) */
 297     BPTR cli_StandardError;
 298 };
 299
 300 /* CLI_DEFAULTSTACK_UNIT * cli_DefaultStack = stack in bytes */
 301
 302 #define CLI_DEFAULTSTACK_UNIT   sizeof(LONG)
 303
 304 /* Devices process structure as returned by GetDeviceProc(). */
 305 struct DevProc
 306 {
 307     struct MsgPort * dvp_Port;
 308     BPTR             dvp_Lock;    /* struct FileLock * */
 309     ULONG            dvp_Flags;   /* see below */
 310     struct DosList * dvp_DevNode; /* PRIVATE */
 311 };
 312
 313 /* dvp_Flags */
 314 #define DVPB_UNLOCK 0
 315 #define DVPB_ASSIGN 1
 316 #define DVPF_UNLOCK (1L<<DVPB_UNLOCK)
 317 #define DVPF_ASSIGN (1L<<DVPB_ASSIGN)
 318
 319 /**********************************************************************
 320  ******************************* Files ********************************
 321  **********************************************************************/
 322
 323 /* Standard file-handle as returned by Open() (as BPTR). Generally said, you
 324    should not use this structure in any way and only use library-calls to
 325    access files. Note that this structure is very different to the structure
 326    used in AmigaOS! Treat this structure as PRIVATE. If you want to create
 327    this structure nevertheless, use AllocDosObject(). */
 328 struct FileHandle
 329 {
 330 #if (AROS_FLAVOUR & AROS_FLAVOUR_BINCOMPAT)
 331     /* The following three fields are not used by AROS and are just there for
 332        compatibility reasons. So keep your hands away. The original names
 333        were: fh_Link, fh_Port and fh_Type */
 334     struct Message * fh_NoAROS1;
 335     struct MsgPort * fh_NoAROS2[2];
 336 #endif
 337
 338     UBYTE * fh_Buf;
 339     UBYTE * fh_Pos;
 340     UBYTE * fh_End;
 341
 342     /* The following four fields have different names and a different
 343        function than their AmigaOS equivalents. The original names were:
 344        fh_Funcs/fh_Func1, fh_Func2, fh_Func3, fh_Args/fh_Arg1 and fh_Arg2 */
 345     ULONG           fh_Size;
 346     ULONG           fh_Flags;   /* see below */
 347       /* This is a pointer to a filesystem handler. See <dos/filesystems.h> for
 348          more information. */
 349     struct Device * fh_Device;
 350
 351     /* SDuvan: Added this and removed the #if below. This field allows us
 352                to emulate packets -- specifically it makes it possible
 353                to implement the ***Pkt() functions */
 354     struct FileHandle *fh_CompatibilityHack;
 355
 356       /* A private pointer to a device specific filehandle structure. See
 357          <dos/filesystems.h> for more information. */
 358     struct Unit   * fh_Unit;
 359 #if (AROS_FLAVOUR & AROS_FLAVOUR_BINCOMPAT)
 360     LONG            fh_NoAROS3; /* not used by AROS */
 361 #endif
 362 };
 363
 364 #define  fh_Arg1  fh_CompatibilityHack
 365
 366 /* fh_Flags. The flags are AROS specific and therefore PRIVATE.. */
 367 #define FHF_WRITE (~0UL/2+1)
 368 #define FHF_BUF     1
 369 #define FHF_APPEND  2
 370 #define FHF_LINEBUF 4
 371 #define FHF_NOBUF   8
 372
 373 /* Structure of a lock, as returned by Lock() and similar functions. This
 374    structure is not used by AROS. Lock() also returns a struct FileHandle! */
 375 #if 0
 376 struct FileLock
 377 {
 378     BPTR             fl_Link;   /* (struct FileLock *) Pointer to next lock. */
 379     LONG             fl_Key;
 380     LONG             fl_Access;
 381     struct MsgPort * fl_Task;
 382     BPTR             fl_Volume; /* (struct DeviceList * - see below) */
 383 };
 384 #endif
 385
 386
 387 /* Constants, defining of what kind a file is. These constants are used in
 388    many structures, including FileInfoBlock (<dos/dos.h>) and ExAllData
 389    (<dos/exall.h>). */
 390 #define ST_PIPEFILE -5 /* File is a pipe */
 391 #define ST_LINKFILE -4 /* Hard link to a file */
 392 #define ST_FILE     -3 /* Plain file */
 393 #define ST_ROOT      1 /* Root directory of filesystem */
 394 #define ST_USERDIR   2 /* Normal directory */
 395 #define ST_SOFTLINK  3 /* Soft link (may be a file or directory) */
 396 #define ST_LINKDIR   4 /* Hard link to a directory */
 397
 398 /**********************************************************************
 399  ****************************** DosLists ******************************
 400  **********************************************************************/
 401
 402 /* This structure is returned by LockDosList() and similar calls. This
 403    structure is different to the AmigaOS one. But this structure is PRIVATE
 404    anyway. Use system-calls for dos list-handling. */
 405 struct DosList
 406 {
 407       /* PRIVATE pointer to next entry. In AmigaOS this used to be a BPTR. */
 408     struct DosList * dol_Next;
 409       /* Type of the current node (see below). */
 410     LONG             dol_Type;
 411
 412 #if (AROS_FLAVOUR & AROS_FLAVOUR_BINCOMPAT)
 413       /* The next field is not used by AROS. Its original name was:
 414          dol_Task */
 415     APTR             dol_NoAROS1;
 416 #endif
 417       /* The lock passed to AssignLock(). Only set if the type is
 418          DLT_DIRECTORY. */
 419     BPTR             dol_Lock;
 420
 421       /* This union combines all the different types. */
 422     union {
 423           /* See struct DevInfo below. */
 424         struct {
 425             BSTR    dol_Handler;
 426             LONG    dol_NoAROS2[2];
 427             BPTR    dol_Startup;
 428             BPTR    dol_NoAROS3[2];
 429         } dol_handler;
 430           /* See struct DeviceList below. */
 431         struct {
 432             struct DateStamp dol_VolumeDate;
 433             BPTR             dol_LockList;
 434             LONG             dol_DiskType;
 435             IPTR             dol_unused;
 436         } dol_volume;
 437           /* Structure used for assigns. */
 438         struct {
 439               /* The name for the late or nonbinding assign. */
 440             UBYTE             *dol_AssignName;
 441               /* A list of locks, used by AssignAdd(). */
 442             struct AssignList *dol_List;
 443         } dol_assign;
 444     } dol_misc;
 445
 446       /* This field is called dol_Name in AmigaOS. It is now named dol_OldName
 447          to give you a hint that something has changed. Additionally to the
 448          old nasty BSTR there is now a new clean STRPTR for the same purpose.
 449          You may want to:
 450          1. Change your sources to reflect this change thus getting rid of
 451             all BCPL stuff or
 452          2. just define dol_OldName to dol_Name before including this file
 453             to stay downwards compatible. */
 454     BSTR dol_OldName;
 455
 456     /* The following fields are new to AROS. */
 457     STRPTR          dol_DevName;
 458     struct Device * dol_Device;
 459     struct Unit   * dol_Unit;
 460 };
 461 /* #define dol_Name dol_OldName */
 462
 463 /* dol_Type/dl_Type/dvi_Type. Given to MakeDosEntry(). */
 464 #define DLT_DEVICE     0 /* A real filesystem (or similar) */
 465 #define DLT_DIRECTORY  1 /* Just a simple assign */
 466 #define DLT_VOLUME     2 /* Volume node (for removable media) */
 467 #define DLT_LATE       3 /* Late binding assign (not yet) */
 468 #define DLT_NONBINDING 4 /* Nonbinding assign (not yet) */
 469
 470
 471 /* The following structures are essentially the same as DosList above. The
 472    difference is that they support just one type of entry. You can use them
 473    instead of DosList, if you have a list, containing just one type of
 474    entries. For more information see above. */
 475
 476 /* Structure that describes a volume.
 477    ATTENTION: This struture does currently work on 32bit computers only due to
 478               the fact that dl_unused does not compensate the missing pointers
 479               in this structure. In DevInfo we have three pointer and three
 480               longwords, while in this structure we have only two pointers and
 481               four longwords. */
 482 struct DeviceList
 483 {
 484     struct DeviceList * dl_Next;
 485     LONG                dl_Type; /* see above, always = DLT_VOLUME */
 486
 487 #if (AROS_FLAVOUR & AROS_FLAVOUR_BINCOMPAT)
 488     /* This field was dl_Task */
 489     struct MsgPort * dl_NoAROS1;
 490 #endif
 491     BPTR             dl_Lock;
 492
 493       /* Embedded DateStamp structured as defined in <dos/dos.h>. At this
 494          date the volume was created. */
 495     struct DateStamp dl_VolumeDate;
 496       /* (void *) List of all locks on the volume. */
 497     BPTR             dl_LockList;
 498       /* Type of the disk. (see <dos/dos.h> for definitions) */
 499     LONG             dl_DiskType;
 500     IPTR             dl_unused; /* PRIVATE */
 501
 502     BSTR dl_OldName;
 503
 504     STRPTR          dl_DevName;
 505     struct Device * dl_Device;
 506     struct Unit   * dl_Unit;
 507 };
 508 /* #define dl_Name dl_OldName */
 509
 510
 511 /* Structure that describes a device. This is essentially the same structure
 512    as DeviceNode, defined in <dos/filehandler.h>. */
 513 struct DevInfo
 514 {
 515     struct DevInfo * dvi_Next;
 516     LONG             dvi_Type; /* see above, always = DLT_DEVICE */
 517
 518 #if (AROS_FLAVOUR & AROS_FLAVOUR_BINCOMPAT)
 519     struct MsgPort * dvi_NoAROS1;
 520 #endif
 521     BPTR             dvi_Lock;
 522
 523     BSTR dvi_Handler;    /* Device name for handler. */
 524     LONG dvi_NoAROS3[2]; /* PRIVATE */
 525     BPTR dvi_Startup;    /* (struct FileSysStartupMsg * - defined in
 526                             <dos/filehandler.h>) */
 527     BPTR dvi_NoAROS4[2]; /* PRIVATE */
 528
 529     BSTR dvi_OldName;
 530
 531     STRPTR          dvi_DevName;
 532     struct Device * dvi_Device;
 533     struct Unit   * dvi_Unit;
 534 };
 535 /* #define dvi_Name dvi_OldName */
 536
 537
 538 /* Dos list scanning and locking modes as used in LockDosList() */
 539 /* Specify either LDF_READ, if you want a non-exclusive lock, or LDF_WRITE,
 540    if you want an exclusive lock (i.e. if you want to modify the list).
 541 */
 542 #define LDB_READ    0 /* Non-exclusive/read lock */
 543 #define LDB_WRITE   1 /* Exclusive/write lock */
 544 /* Specify which list(s) to lock. */
 545 #define LDB_DEVICES 2 /* Device list */
 546 #define LDB_VOLUMES 3 /* Volume list */
 547 #define LDB_ASSIGNS 4 /* Assign list */
 548 #define LDB_ENTRY   5
 549 #define LDB_DELETE  6
 550
 551 #define LDF_READ    (1L<<LDB_READ)
 552 #define LDF_WRITE   (1L<<LDB_WRITE)
 553 #define LDF_DEVICES (1L<<LDB_DEVICES)
 554 #define LDF_VOLUMES (1L<<LDB_VOLUMES)
 555 #define LDF_ASSIGNS (1L<<LDB_ASSIGNS)
 556 #define LDF_ENTRY   (1L<<LDB_ENTRY)
 557 #define LDF_DELETE  (1L<<LDB_DELETE)
 558 #define LDF_ALL     (LDF_DEVICES | LDF_VOLUMES | LDF_ASSIGNS)
 559
 560
 561 /* Used for assigns that point to multiple directories. */
 562 struct AssignList
 563 {
 564     struct AssignList * al_Next; /* Pointer to next assign node. */
 565     BPTR                al_Lock; /* (struct FileLock *) Lock of on of the
 566                                     directories. */
 567 };
 568
 569 /**********************************************************************
 570  ********************** Low Level File Handling ***********************
 571  **********************************************************************/
 572
 573 /* This section is OBSOLETE and is not implemented in AROS! AROS uses a
 574    different concept for filesystem-handling. See <dos/filesystem.h> for
 575    more information. Use the structures and defines in this section only, if
 576    you are programming just for AmigaOS. */
 577
 578
 579 /* Allocate this structure with AllocDosObject(). */
 580 struct DosPacket
 581 {
 582    struct Message * dp_Link; /* Pointer to a standard exec message. */
 583    struct MsgPort * dp_Port; /* Reply-Port of that packet. */
 584
 585    LONG dp_Type; /* see below */
 586    LONG dp_Res1; /* Normal return value. */
 587    LONG dp_Res2; /* Secondary return value (as returned by IoErr()). See
 588                     <dos/dos.h> for possible values. */
 589
 590    /* The actual data. */
 591    IPTR dp_Arg1;
 592    IPTR dp_Arg2;
 593    IPTR dp_Arg3;
 594    IPTR dp_Arg4;
 595    IPTR dp_Arg5;
 596    IPTR dp_Arg6;
 597    IPTR dp_Arg7;
 598 };
 599 #define dp_Action   dp_Type
 600 #define dp_Status   dp_Res1
 601 #define dp_Status2  dp_Res2
 602 #define dp_BufAddr  dp_Arg1
 603
 604
 605 /* These are defined for packet emulation purposes only! AROS doesn't use
 606    packets at all, but emulates (some of) them via DoPkt(), SendPkt() and
 607    others to function like they did in AmigaOS */
 608
 609 /* dp_Type */
 610 #define ACTION_NIL             0
 611 #define ACTION_STARTUP         0
 612 #define ACTION_GET_BLOCK       2        /* Obsolete */
 613 #define ACTION_SET_MAP         4
 614 #define ACTION_DIE             5
 615 #define ACTION_EVENT           6
 616 #define ACTION_CURRENT_VOLUME  7
 617 #define ACTION_LOCATE_OBJECT   8
 618 #define ACTION_RENAME_DISK     9
 619 #define ACTION_FREE_LOCK      15
 620 #define ACTION_DELETE_OBJECT  16
 621 #define ACTION_RENAME_OBJECT  17
 622 #define ACTION_MORE_CACHE     18
 623 #define ACTION_COPY_DIR       19
 624 #define ACTION_WAIT_CHAR      20
 625 #define ACTION_SET_PROTECT    21
 626 #define ACTION_CREATE_DIR     22
 627 #define ACTION_EXAMINE_OBJECT 23
 628 #define ACTION_EXAMINE_NEXT   24
 629 #define ACTION_DISK_INFO      25
 630 #define ACTION_INFO           26
 631 #define ACTION_FLUSH          27
 632 #define ACTION_SET_COMMENT    28
 633 #define ACTION_PARENT         29
 634 #define ACTION_TIMER          30
 635 #define ACTION_INHIBIT        31
 636 #define ACTION_DISK_TYPE      32
 637 #define ACTION_DISK_CHANGE    33
 638 #define ACTION_SET_DATE       34
 639 #define ACTION_SAME_LOCK      40
 640
 641 #define ACTION_WRITE 'W'
 642 #define ACTION_READ  'R'
 643
 644 #define ACTION_SCREEN_MODE      994
 645 #define ACTION_CHANGE_SIGNAL    995
 646 #define ACTION_READ_RETURN     1001
 647 #define ACTION_WRITE_RETURN    1002
 648 #define ACTION_FINDUPDATE      1004
 649 #define ACTION_FINDINPUT       1005
 650 #define ACTION_FINDOUTPUT      1006
 651 #define ACTION_END             1007
 652 #define ACTION_SEEK            1008
 653 #define ACTION_FORMAT          1020
 654 #define ACTION_MAKE_LINK       1021
 655 #define ACTION_SET_FILE_SIZE   1022
 656 #define ACTION_WRITE_PROTECT   1023
 657 #define ACTION_READ_LINK       1024
 658 #define ACTION_FH_FROM_LOCK    1026
 659 #define ACTION_IS_FILESYSTEM   1027
 660 #define ACTION_CHANGE_MODE     1028
 661 #define ACTION_COPY_DIR_FH     1030
 662 #define ACTION_PARENT_FH       1031
 663 #define ACTION_EXAMINE_ALL     1033
 664 #define ACTION_EXAMINE_FH      1034
 665 #define ACTION_EXAMINE_ALL_END 1035
 666 #define ACTION_SET_OWNER       1036
 667
 668 #define ACTION_LOCK_RECORD   2008
 669 #define ACTION_FREE_RECORD   2009
 670
 671 #define ACTION_ADD_NOTIFY    4097
 672 #define ACTION_REMOVE_NOTIFY 4098
 673
 674 #define ACTION_SERIALIZE_DISK 4200
 675
 676 /* Structure for easy handling of DosPackets. DosPackets don´t have to be in
 677    this structure, but this struture may ease the use of it. */
 678 struct StandardPacket
 679 {
 680     struct Message   sp_Msg;
 681     struct DosPacket sp_Pkt;
 682 };
 683
 684
 685 /* NOTE: AROS doesn't use startup packets. This will ONLY make a difference
 686          for shell writers... */
 687
 688 /* Types of command execution */
 689 #define RUN_EXECUTE       -1
 690 #define RUN_SYSTEM        -2
 691 #define RUN_SYSTEM_ASYNCH -3
 692
 693
 694 /**********************************************************************
 695  ****************************** Segments ******************************
 696  **********************************************************************/
 697
 698 /* Resident list structure as returned by AddSegment(). */
 699 struct Segment
 700 {
 701     BPTR  seg_Next;    /* Pointer to next segment. */
 702     LONG  seg_UC;      /* Usage count/type */
 703     BPTR  seg_Seg;     /* Actual Segment */
 704     UBYTE seg_Name[4]; /* The first characters of the name (BSTR). */
 705 };
 706
 707 #define CMD_SYSTEM      -1
 708 #define CMD_INTERNAL    -2
 709 #define CMD_DISABLED    -999
 710
 711 /**********************************************************************
 712  *************************** Error Handling ***************************
 713  **********************************************************************/
 714
 715 struct ErrorString
 716 {
 717     LONG * estr_Nums;
 718     STRPTR estr_Strings;
 719 };
 720
 721 /* Return values for ErrorReport(). */
 722 #define REPORT_STREAM 0
 723 #define REPORT_TASK   1
 724 #define REPORT_LOCK   2
 725 #define REPORT_VOLUME 3
 726 #define REPORT_INSERT 4
 727
 728 #define ABORT_BUSY       288
 729 #define ABORT_DISK_ERROR 296
 730
 731 #endif /* DOS_DOSEXTENS_H */