Leaked source code of windows server 2003
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TITLE HANDLE - Handle Table Manager
.xlistinclude kernel.inc.list
sBegin CODEassumes CS,CODE;-----------------------------------------------------------------------;; hthread ;; ;; Threads together a list of free handles. ;; ;; Arguments: ;; DI = start of chain ;; CX = #handle entries in chain ;; ;; Returns: ;; AX = address of first handle entry on free list ;; CX = 0 ;; DI = address of first word after handle block ;; ;; Error Returns: ;; ;; Registers Preserved: ;; ;; Registers Destroyed: ;; ;; Calls: ;; ;; History: ;; ;; Mon Oct 27, 1986 10:09:23a -by- David N. Weise [davidw] ;; Restructured as a result of separating handle.asm and lhandle.asm. ;; ;; Tue Oct 14, 1986 04:11:46p -by- David N. Weise [davidw] ;; Added this nifty comment block. ;; ;; Wed Jul 8, 1987 14:36 -by- Rick N. Zucker [rickz] ;; changed to hthread from ghthead to be used by local handle entries ;; ;;-----------------------------------------------------------------------;
assumes ds, nothing assumes es, nothing
cProc hthread,<PUBLIC,NEAR>cBegin nogen push di ; Save first free handle entry smov es,ds cldht1: ; Chain entries together via he_link errnz <he_link> errnz <he_link - lhe_link> lea ax,[di].SIZE HandleEntry stosw mov ax,HE_FREEHANDLE errnz <2 - he_flags> errnz <he_flags - lhe_flags> stosw errnz <4 - SIZE HandleEntry> errnz <SIZE HandleEntry - SIZE LocalHandleEntry> loop ht1 ; Null terminate free list mov [di-SIZE HandleEntry].he_link,cx pop ax ; Return free handle address retcEnd nogen
sEnd CODE
end
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