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- /*
-
- File: handler.h
- Author: Neil Cafferkey
- Copyright (C) 2001-2002 Neil Cafferkey
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License
- as published by the Free Software Foundation; either version 2
- of the License, or (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- MA 02111-1307, USA.
-
- */
-
- #ifndef HANDLER_H
- #define HANDLER_H
-
-
- #include <dos/dos.h>
- #include <dos/dosextens.h>
- #include <dos/filehandler.h>
- #include <dos/notify.h>
- #include <exec/memory.h>
- #include <utility/utility.h>
-
- #include <proto/exec.h>
- #include <proto/dos.h>
- #include <proto/alib.h>
- #include <proto/locale.h>
- #include <proto/utility.h>
-
-
- typedef ULONG UPINT;
- typedef LONG PINT;
-
- #ifndef MEM_BLOCKSHIFT
- #define MEM_BLOCKSHIFT 3
- #endif
-
- #define MIN(A,B) (((A)<(B))?(A):(B))
- #define MEMBLOCKS(A) (((A)-1>>(MEM_BLOCKSHIFT))+1);
- #define HARDLINK(A) (struct Object *)(((BYTE *)(A))-(UPINT)&((struct Object *)NULL)->hard_link)
- #define DOSBOOL(A) ((A)?DOSTRUE:DOSFALSE)
-
- #define MIN_BLOCK_SIZE 64
- #define MAX_BLOCK_SIZE 0x8000
- #define DOS_VERSION 39
- #define UTILITY_VERSION 37
- #define LOCALE_VERSION 38
-
-
- struct Block
- {
- struct MinNode node;
- UWORD length; /* number of data bytes */
- };
-
-
- struct Lock
- {
- struct FileLock lock;
- struct MinList openings;
- UPINT lock_count;
- BOOL changed;
- };
-
-
- struct Object
- {
- struct Node node;
- UWORD end_length; /* number of valid bytes in last data block */
- struct MinList elements;
- UPINT length; /* logical length in bytes for a file */
- UPINT block_count; /* number of memory blocks */
- struct Lock *lock;
- struct Object *parent;
- struct DateStamp date;
- ULONG protection;
- STRPTR comment;
- struct MinNode hard_link;
- };
-
-
- struct Opening
- {
- struct MinNode node;
- struct Object *file;
- UPINT pos;
- struct Block *block;
- UPINT block_pos;
- };
-
-
- struct Notification
- {
- struct MinNode node;
- struct NotifyRequest *request;
- struct Object *object;
- };
-
-
- struct Handler
- {
- struct Object *root_dir;
- struct DosList *volume;
- struct MsgPort *proc_port;
- struct MsgPort *notify_port;
- UPINT block_count;
- UPINT lock_count;
- struct Locale *locale;
- ULONG min_block_size;
- ULONG max_block_size;
- BOOL locked;
- struct MinList notifications;
- };
-
-
-
- /* Global variables */
-
- GLOBAL struct ExecBase *SysBase;
- GLOBAL struct DosLibrary *DOSBase;
- GLOBAL struct UtilityBase *UtilityBase;
- GLOBAL struct LocaleBase *LocaleBase;
-
-
- #endif
-
-
-