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Autodocs Include classes clib datatypes devices diskfont dos datetime.h / .i dos.h / .i dos_lib.i dosasl.h / .i dosextens.h / .i doshunks.h / .i dostags.h / .i exall.h / .i filehandler.h / .i notify.h / .i rdargs.h / .i record.h / .i stdio.h / .i var.h / .i exec gadgets graphics hardware images intuition libraries pragma pragmas prefs proto reaction resources rexx utility workbench GuruMeditation | #ifndef DOS_FILEHANDLER_H #define DOS_FILEHANDLER_H /* ** $VER: filehandler.h 44.1 (24.8.99) ** Includes Release 45.1 ** ** device and file handler specific code for AmigaDOS ** ** (C) Copyright 1986-2001 Amiga, Inc. ** All Rights Reserved */ #ifndef EXEC_PORTS_H #include <exec/ports.h> #endif #ifndef DOS_DOS_H #include <dos/dos.h> #endif /* The disk "environment" is a longword array that describes the * disk geometry. It is variable sized, with the length at the beginning. * Here are the constants for a standard geometry. */ struct DosEnvec { ULONG de_TableSize; /* Size of Environment vector */ ULONG de_SizeBlock; /* in longwords: Physical disk block size */ ULONG de_SecOrg; /* not used; must be 0 */ ULONG de_Surfaces; /* # of heads (surfaces). drive specific */ ULONG de_SectorPerBlock; /* N de_SizeBlock sectors per logical block */ ULONG de_BlocksPerTrack; /* blocks per track. drive specific */ ULONG de_Reserved; /* DOS reserved blocks at start of partition. */ ULONG de_PreAlloc; /* DOS reserved blocks at end of partition */ ULONG de_Interleave; /* usually 0 */ ULONG de_LowCyl; /* starting cylinder. typically 0 */ ULONG de_HighCyl; /* max cylinder. drive specific */ ULONG de_NumBuffers; /* Initial # DOS of buffers. */ ULONG de_BufMemType; /* type of mem to allocate for buffers */ ULONG de_MaxTransfer; /* Max number of bytes to transfer at a time */ ULONG de_Mask; /* Address Mask to block out certain memory */ LONG de_BootPri; /* Boot priority for autoboot */ ULONG de_DosType; /* ASCII (HEX) string showing filesystem type; * 0X444F5300 is old filesystem, * 0X444F5301 is fast file system */ ULONG de_Baud; /* Baud rate for serial handler */ ULONG de_Control; /* Control word for handler/filesystem */ ULONG de_BootBlocks; /* Number of blocks containing boot code */ }; /* these are the offsets into the array */ /* DE_TABLESIZE is set to the number of longwords in the table minus 1 */ #define DE_TABLESIZE 0 /* minimum value is 11 (includes NumBuffers) */ #define DE_SIZEBLOCK 1 /* in longwords: standard value is 128 */ #define DE_SECORG 2 /* not used; must be 0 */ #define DE_NUMHEADS 3 /* # of heads (surfaces). drive specific */ #define DE_SECSPERBLK 4 /* not used; must be 1 */ #define DE_BLKSPERTRACK 5 /* blocks per track. drive specific */ #define DE_RESERVEDBLKS 6 /* unavailable blocks at start. usually 2 */ #define DE_PREFAC 7 /* not used; must be 0 */ #define DE_INTERLEAVE 8 /* usually 0 */ #define DE_LOWCYL 9 /* starting cylinder. typically 0 */ #define DE_UPPERCYL 10 /* max cylinder. drive specific */ #define DE_NUMBUFFERS 11 /* starting # of buffers. typically 5 */ #define DE_MEMBUFTYPE 12 /* type of mem to allocate for buffers. */ #define DE_BUFMEMTYPE 12 /* same as above, better name * 1 is public, 3 is chip, 5 is fast */ #define DE_MAXTRANSFER 13 /* Max number bytes to transfer at a time */ #define DE_MASK 14 /* Address Mask to block out certain memory */ #define DE_BOOTPRI 15 /* Boot priority for autoboot */ #define DE_DOSTYPE 16 /* ASCII (HEX) string showing filesystem type; * 0X444F5300 is old filesystem, * 0X444F5301 is fast file system */ #define DE_BAUD 17 /* Baud rate for serial handler */ #define DE_CONTROL 18 /* Control word for handler/filesystem */ #define DE_BOOTBLOCKS 19 /* Number of blocks containing boot code */ /* The file system startup message is linked into a device node's startup ** field. It contains a pointer to the above environment, plus the ** information needed to do an exec OpenDevice(). */ struct FileSysStartupMsg { ULONG fssm_Unit; /* exec unit number for this device */ BSTR fssm_Device; /* null terminated bstring to the device name */ BPTR fssm_Environ; /* ptr to environment table (see above) */ ULONG fssm_Flags; /* flags for OpenDevice() */ }; /* The include file "libraries/dosextens.h" has a DeviceList structure. * The "device list" can have one of three different things linked onto * it. Dosextens defines the structure for a volume. DLT_DIRECTORY * is for an assigned directory. The following structure is for * a dos "device" (DLT_DEVICE). */ struct DeviceNode { BPTR dn_Next; /* singly linked list */ ULONG dn_Type; /* always 0 for dos "devices" */ struct MsgPort *dn_Task; /* standard dos "task" field. If this is * null when the node is accesses, a task * will be started up */ BPTR dn_Lock; /* not used for devices -- leave null */ BSTR dn_Handler; /* filename to loadseg (if seglist is null) */ ULONG dn_StackSize; /* stacksize to use when starting task */ LONG dn_Priority; /* task priority when starting task */ BPTR dn_Startup; /* startup msg: FileSysStartupMsg for disks */ BPTR dn_SegList; /* code to run to start new task (if necessary). * if null then dn_Handler will be loaded. */ BPTR dn_GlobalVec; /* BCPL global vector to use when starting * a task. -1 means that dn_SegList is not * for a bcpl program, so the dos won't * try and construct one. 0 tell the * dos that you obey BCPL linkage rules, * and that it should construct a global * vector for you. */ BSTR dn_Name; /* the node name, e.g. '\3','D','F','3' */ }; #endif /* DOS_FILEHANDLER_H */ Comments |
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