MZ is back!HEADmain

1 files changed, 148 insertions, 0 deletions

diff --git a/v4.0/src/INC/FASTOPEN.INC b/v4.0/src/INC/FASTOPEN.INC
new file mode 100644
index 0000000..a01c6da
--- /dev/null
+++ b/v4.0/src/INC/FASTOPEN.INC
@@ -0,0 +1,148 @@
+;
+; EXPORT DATE: 9/11
+;Equates for FASTOPEN.
+
+;FASTOPEN NAME CACHING Subfunctions
+FONC_Look_up    equ     1
+FONC_insert     equ     2
+FONC_delete     equ     3
+FONC_update     equ     4
+FONC_purge      equ     5               ;reserved for the future use.
+
+;FASTOPEN EXTENT  CACHING Subfunctions
+FSK_Open       equ     11                                              ;AN000;
+FSK_Close      equ     12                                              ;AN000;
+FSK_Delete     equ     13                                              ;AN000;
+FSK_Lookup     equ     14                                              ;AN000;
+FSK_Insert     equ     15                                              ;AN000;
+FSK_Trunc      equ     16                                              ;AN000;
+
+HeaderSize     equ    8        ; size of file header (8 bytes)         ;AN000;
+ExtendSize     equ    8        ; size of extend (8 bytes)              ;AN000;
+Num_Of_Pages   equ    1        ; number of pages                       ;AN000;
+Num_Of_Segs    equ    2        ; number of frame segments              ;AN000;
+Stayresident  equ    04ch     ; terminate and stay resident function code
+
+
+;Equates used in DOS.
+FastOpen_Set           equ     00000001B
+FastOpen_Reset         equ     11111110B
+Lookup_Success         equ     00000010B
+Lookup_Reset           equ     11111101B
+Special_Fill_Set       equ     00000100B
+Special_Fill_Reset     equ     11111011B
+No_Lookup              equ     00001000B
+Set_For_Search         equ     00010000B             ;DCR 167
+
+
+;============= FastOpen Data Structures =====================
+
+Fastopen_Entry  STRUC                   ;Fastopen Entry pointer in DOS
+Fastopen_Entry_size     dw      4       ;size of the following
+Fastopen_Name_Caching   dd      ?
+;Fastopen_FatChain_Caching dd     ?     ;reserved for future use
+Fastopen_Entry  ENDS
+;
+
+
+CMPCT_DIR_INFO  STRUC                   ;compact version of Dir Info.
+CDI_file_name   db      11 dup (' ')
+CDI_file_attr   db      ?
+CDI_codepage    dw      ?
+CDI_extcluster  dw      ?
+CDI_attr2       db      ?
+CDI_time        dw      ?
+CDI_date        dw      ?
+CDI_cluster     dw      ?
+CDI_filesize    dd      ?
+CMPCT_DIR_INFO  ENDS
+;
+
+ORIG_DIR_INFO   STRUC
+ODI_head        db      17 dup (?)
+ODI_skip        db      5  dup (0)      ;reserved for DOS. FASTOPEN does not
+ODI_tail        db      10 dup (?)      ;  use ODI_skip part.
+ORIG_DIR_INFO   ENDS
+;
+
+ODI_head_leng   equ     17
+ODI_skip_leng   equ     5
+ODI_tail_leng   equ     10
+;
+
+FASTOPEN_EXTENDED_INFO  STRUC
+FEI_dirpos      db      0
+FEI_dirsec      dd      0
+FEI_clusnum     dw      0
+FEI_lastent     dw      0               ; for search first
+FEI_dirstart    dw      0               ; for search first
+FASTOPEN_EXTENDED_INFO  ENDS
+;
+
+NAME_RECORD     STRUC
+nLRU_ptr        dw      -1
+nMRU_ptr        dw      -1              ;reverse of nLRU_ptr
+nChild_ptr      dw      -1
+nSibling_ptr    dw      -1
+nBackward_ptr   dw      -1              ;points to preceding node
+nCmpct_Dir_Info db      size Cmpct_Dir_Info dup (' ')
+nExtended_Info  db      size Fastopen_Extended_Info dup (?)
+NAME_RECORD     ENDS
+;
+
+DRIVE_CACHE_HEADER      STRUC           ;drive cache header
+DCH_LRU_ROOT     dw      0              ;Header of the LRU chain of this drive
+DCH_MRU_ROOT     dw      0              ;offset to the last entry of LRU chain
+DCH_Child_ptr    dw      -1             ;the first child in Name cache seg.
+DCH_Sibling_ptr  dw      -1             ;points to the next drive cache header
+DCH_Drive_letter db     'C'             ;drive letter
+DCH_Num_Entries  dw      0              ;Number of entries in the Name cache.
+DCH_Name_Buff    dw      0              ;pointer to name cahe buffer
+DRIVE_CACHE_HEADER      ENDS
+;
+
+
+
+
+
+;======== FAST SEEK FUNCTION  DATA  STRUCTURES =======================
+
+DRIVE_HEADER    STRUC              ; Drive header structure             ;AN000;
+Drive_Number         dw     0      ; drive number                       ;AN000;
+Extent_Count         dw     0      ; reserved for debugging
+MRU_Hdr_Ptr          dw     0      ; pointer to OPEN Queue
+Free_ptr             dw     0      ; pointer to FREE buffer             ;AN000;
+Close_Ptr            dw     0      ; pointer to CLOSE Queue          ;AN000;
+Buff_Size            dw     0      ; cache buffer size including header ;AN000;
+Free_Size            dw     0      ; size of Free area in bytes
+Next_Drv_Hdr_Ptr     dw     0      ; pointer to next drive header
+DRIVE_HEADER   ENDS
+
+
+
+FILE_HEADER     STRUC              ; File header structure              ;AN000;
+FH_Phys_Clus_Num     dw     0      ; starting physcial clustnum of file ;AN000;
+FH_Refer_Count       dw     0      ; reference count                    ;AN000;
+FH_Next_Extn_Ptr     dw     0      ; pointer to first extent of the file;AN000;
+FH_Next_Hdr_Ptr      dw     0      ; pointer to next file header        ;AN000;
+FH_MRU_Extn_Ptr      dw     0      ; pointer to  MRU extent
+                     dw     0
+                     dw     0
+                     dw     0
+FILE_HEADER     ENDS                                                    ;AN000;
+
+
+
+EXTENT_HEADER   STRUC              ; extend header structure            ;AN000;
+EH_Logic_Clus_Num    dw     0      ; starting logical clus num of extent;AN000;
+EH_Phys_Clus_Num     dw     0      ; starting physical clus numof  extnt;AN000;
+EH_Count             dw     0      ; range of logical clusnum in the extnt
+EH_Next_Extn_Ptr     dw     0      ; pointer to next extent             ;AN000;
+EH_Prev_Extn_Ptr     dw     0      ; pointer to previous extent  ;AN000;
+EH_Next_LRU_Ptr      dw     0      ; pointer to next LRU extent
+EH_Prev_LRU_Ptr      dw     0      ; pointer tp previous LRU extent
+                     dw     0
+EXTENT_HEADER   ENDS
+
+
+