WebSVN – Kolibri OS – Diff – /kernel/trunk/gui/event.inc


;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;                                                              ;;
;; Copyright (C) KolibriOS team 2004-2021. All rights reserved. ;;
;; Copyright (C) MenuetOS 2000-2004 Ville Mikael Turjanmaa      ;;
;; Distributed under terms of the GNU General Public License    ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
$Revision: 9949 $
 
WINDOW_MOVE_AND_RESIZE_FLAGS = \
  mouse.WINDOW_RESIZE_N_FLAG + \
  mouse.WINDOW_RESIZE_W_FLAG + \
  mouse.WINDOW_RESIZE_S_FLAG + \
  mouse.WINDOW_RESIZE_E_FLAG + \
  mouse.WINDOW_MOVE_FLAG
 
uglobal
align 4
  event_start   dd ?
  event_end     dd ?
  event_uid     dd 0
endg
EV_SPACE   = 512
FreeEvents = event_start-EVENT.fd    ; "virtual" event, only following field used:
                                     ;  FreeEvents.fd=event_start and FreeEvents.bk=event_end
;-----------------------------------------------------------------------------
align 4
init_events:                                       ;; used from kernel.asm
        stdcall kernel_alloc, EV_SPACE*sizeof.EVENT
        or      eax, eax
        jz      .fail
      ; eax - current event, ebx - previous event below
        mov     ecx, EV_SPACE        ; current - in allocated space
        mov     ebx, FreeEvents      ; previous - list beginning
        push    ebx                  ; it will be the end later
;--------------------------------------
align 4
@@:
        mov     [ebx+EVENT.fd], eax
        mov     [eax+EVENT.bk], ebx
        mov     ebx, eax             ; previos <- current
        add     eax, sizeof.EVENT    ; new current
        loop    @b
        pop     eax                  ; here it became the end
        mov     [ebx+EVENT.fd], eax
        mov     [eax+EVENT.bk], ebx
;--------------------------------------
align 4
.fail:
        ret
;-----------------------------------------------------------------------------
EVENT_WATCHED    = 0x10000000 ; bit 28
EVENT_SIGNALED   = 0x20000000 ; bit 29
MANUAL_RESET     = 0x40000000 ; bit 30
MANUAL_DESTROY   = 0x80000000 ; bit 31
;-----------------------------------------------------------------------------
align 4
create_event:                                      ;; EXPORT use
;info:
;   Move EVENT from the FreeEvents list to the ObjList list of the current slot;
;   EVENT.state is set from ecx, EVENT.code indirectly from esi (if esi <> 0)
;param:
;   esi - event data
;   ecx - flags
;retval:
;   eax - event (=0 => fail)
;   edx - uid
;scratched: ebx,ecx,esi,edi
        mov     ebx, [current_slot]
        mov     edx, [ebx+APPDATA.tid]
        add     ebx, APP_OBJ_OFFSET
        pushfd
        cli
;--------------------------------------
align 4
set_event:                                         ;; INTERNAL use !!! don't use for Call
;info:
;   We take a new event from FreeEvents, fill its fields from ecx, edx, esi
;   and add it to the list, which specified in ebx.
;   Return event (to eax), and it's uid (to edx)
;param:
;   ebx - start-chain "virtual" event for entry new event Right of him
;   ecx - flags      (copied to EVENT.state)
;   edx - pid        (copied to EVENT.pid)
;   esi - event data (copied to EVENT.code indirect, =0 => skip)
;retval:
;   eax - event (=0 => fail)
;   edx - uid
;scratched: ebx,ecx,esi,edi
        mov     eax, FreeEvents
        cmp     eax, [eax+EVENT.fd]
        jne     @f  ; not empty ???
        pushad
        call    init_events
        popad
        jz      RemoveEventTo.break ; POPF+RET
;--------------------------------------
align 4
@@:
        mov     eax, [eax+EVENT.fd]
        mov     [eax+EVENT.magic], 'EVNT'
        mov     [eax+EVENT.destroy], destroy_event.internal
        mov     [eax+EVENT.state], ecx
        mov     [eax+EVENT.pid], edx
        inc     [event_uid]
        mov     edx, [event_uid]
        mov     [eax+EVENT.id], edx
        or      esi, esi
        jz      RemoveEventTo
        lea     edi, [eax+EVENT.code]
        mov     ecx, (sizeof.EVENT -EVENT.code)/4
        cld
        rep movsd
;--------------------------------------
align 4
RemoveEventTo:                                     ;; INTERNAL use !!! don't use for Call
;param:
;   eax - pointer to event, WHICH we will insert
;   ebx - pointer to event, AFTER which we will insert
;scratched: ebx,ecx
        mov     ecx, eax             ; ecx=eax=Self,      ebx=NewLeft
        xchg    ecx, [ebx+EVENT.fd]  ; NewLeft.fd=Self,   ecx=NewRight
        cmp     eax, ecx             ; stop, I think...
        je      .break               ; - am I not a fool?
        mov     [ecx+EVENT.bk], eax  ; NewRight.bk=Self
        xchg    ebx, [eax+EVENT.bk]  ; Self.bk=NewLeft,   ebx=OldLeft
        xchg    ecx, [eax+EVENT.fd]  ; Self.fd=NewRight,  ecx=OldRight
        mov     [ebx+EVENT.fd], ecx  ; OldLeft.fd=OldRight
        mov     [ecx+EVENT.bk], ebx  ; OldRight.bk=OldLeft
;--------------------------------------
align 4
.break:
        popfd
        ret
;-----------------------------------------------------------------------------
align 4
NotDummyTest:                                      ;; INTERNAL use (not returned for fail !!!)
        pop     edi
        call    DummyTest ; not returned for fail !!!
        mov     ebx, eax
        mov     eax, [ebx+EVENT.pid]
        push    edi
;--------------------------------------
align 4
.small: ; somehow ugly...
        pop     edi
        pushfd
        cli
        call    pid_to_slot ; saved all registers (eax - retval)
        shl     eax, 8
        jz      RemoveEventTo.break ; POPF+RET
        jmp     edi ; normal return
;-----------------------------------------------------------------------------
align 4
raise_event:                                       ;; EXPORT use
;info:
;   Setting up EVENT.code data
;   If is has flag EVENT_SIGNALED activated - nothing else
;   Otherwise: activate this flag, except when the EVENT_WATCHED flag is present in edx
;   In this case EVENT_SIGNALED will activated only if EVENT_WATCHED presents in the event itself
;param:
;   eax - event
;   ebx - uid (for Dummy testing)
;   edx - flags
;   esi - event data (=0 => skip)
;scratched: ebx,ecx,esi,edi
        call    NotDummyTest ; not returned for fail !!!
        or      esi, esi
        jz      @f
        lea     edi, [ebx+EVENT.code]
        mov     ecx, (sizeof.EVENT -EVENT.code)/4
        cld
        rep movsd
;--------------------------------------
align 4
@@:
        test    byte[ebx+EVENT.state+3], EVENT_SIGNALED shr 24
        jnz     RemoveEventTo.break  ; POPF+RET
        bt      edx, 28 ;EVENT_WATCHED
        jnc     @f
        test    byte[ebx+EVENT.state+3], EVENT_WATCHED shr 24
        jz      RemoveEventTo.break  ; POPF+RET
;--------------------------------------
align 4
@@:
        or      byte[ebx+EVENT.state+3], EVENT_SIGNALED shr 24
        add     eax, SLOT_BASE+APP_EV_OFFSET
        xchg    eax, ebx
        jmp     RemoveEventTo
;-----------------------------------------------------------------------------
align 4
clear_event:                                       ;; EXPORT use
;info:
;
;param:
;   eax - event
;   ebx - uid (for Dummy testing)
;scratched: ebx,ecx
        call    NotDummyTest ; not returned for fail !!!
        add     eax, SLOT_BASE+APP_OBJ_OFFSET
        and     byte[ebx+EVENT.state+3], not((EVENT_SIGNALED+EVENT_WATCHED)shr 24)
        xchg    eax, ebx
        jmp     RemoveEventTo
;-----------------------------------------------------------------------------
align 4
send_event:                                        ;; EXPORT use
;info:
;   Creates a new EVENT (pulls from the FreeEvents list) in the EventList list
;   of target slot (eax=pid), with data from esi indirectly, and state=EVENT_SIGNALED
;param:
;   eax - slots pid, to sending new event
;   esi - pointer to sending data (in code field of new event)
;retval:
;   eax - event (=0 => fail)
;   edx - uid
;warning:
;   may be used as CDECL with such prefix...
;       mov     esi,[esp+8]
;       mov     eax,[esp+4]
;   but not as STDCALL :(
;scratched: ebx,ecx,esi,edi
        mov     edx, eax
        call    NotDummyTest.small ; not returned for fail !!!
        lea     ebx, [eax+SLOT_BASE+APP_EV_OFFSET]
        mov     ecx, EVENT_SIGNALED
        jmp     set_event
;-----------------------------------------------------------------------------
align 4
DummyTest:                                         ;; INTERNAL use (not returned for fail !!!)
;param:
;   eax - event
;   ebx - uid (for Dummy testing)
        cmp     [eax+EVENT.magic], 'EVNT'
        jne     @f
        cmp     [eax+EVENT.id], ebx
        je      .ret
;--------------------------------------
align 4
@@:
        pop     eax
        xor     eax, eax
;--------------------------------------
align 4
.ret:
        ret
;-----------------------------------------------------------------------------
align 4
Wait_events:
        or      ebx, -1; infinite timeout
;--------------------------------------
align 4
Wait_events_ex:
;info:
;   Waiting for an "abstract" event by moving the slot to the 5th position.
;   Abstractness lies in the fact, that the fact of an event is determined by the APPDATA.wait_test function,
;   which is set by the client and can be actually anything.
;   This allows the shed to reliably determine the fact of the event, and not make "idle" switches,
;   intended for showdowns like "friend / foe" within the problem.
;param:
;   edx - wait_test, client testing function (code address)
;   ecx - wait_param, additional parameter, possibly needed for [wait_test]
;   ebx - wait_timeout
;retval:
;   eax - call result [wait_test] (=0 => timeout)
;scratched: esi
        mov     esi, [current_slot]
        mov     [esi+APPDATA.wait_param], ecx
        pushad
        mov     ebx, esi  ;now this is a question, what where to put..........
        pushfd  ; this is a consequence of the general concept: let the test function have
        cli     ; the right to hope to disable interrupts, as when called from shed
        call    edx
        popfd
        mov     [esp+28], eax
        popad
        or      eax, eax
        jnz     @f   ;RET
        mov     [esi+APPDATA.wait_test], edx
        mov     [esi+APPDATA.wait_timeout], ebx
        mov     eax, [timer_ticks]
        mov     [esi+APPDATA.wait_begin], eax
        mov     [esi + APPDATA.state], TSTATE_WAITING
        call    change_task
        mov     eax, [esi+APPDATA.wait_param]
;--------------------------------------
align 4
@@:
        ret
;-----------------------------------------------------------------------------
align 4
wait_event:                                        ;; EXPORT use
;info:
;   Waiting for the EVENT_SIGNALED flag in a very specific Event
;   (set, presumably, via raise_event)
;   When the MANUAL_RESET flag is active, nothing else
;   Otherwise: the flags EVENT_SIGNALED and EVENT_WATCHED for the received event are cleared,
;   and, if MANUAL_DESTROY is active, it moves to the ObjList list of the current slot,
;   and if not active, it is destroyed normally (destroy_event.internal)
;param:
;   eax - event
;   ebx - uid (for Dummy testing)
;scratched: ecx,edx,esi
        call    DummyTest
        mov     ecx, eax             ; wait_param
        mov     edx, get_event_alone ; wait_test
        call    Wait_events          ; timeout ignored
        jmp     wait_finish
;-----------------------------------------------------------------------------
align 4
wait_event_timeout:
;param:
;   eax - event
;   ebx - uid (for Dummy testing)
;   ecx - timeout in timer ticks
;retval:
;   eax - EVENT handle or 0 if timeout
        call    DummyTest
        mov     ebx, ecx
        mov     ecx, eax             ; wait_param
        mov     edx, get_event_alone ; wait_test
        call    Wait_events_ex
        test    eax, eax
        jnz     wait_finish
        ret
;-----------------------------------------------------------------------------
align 4
get_event_ex:                                      ;; f68:14
;info:
;   Waiting for any event in the EventList of the current slot
;   Code event data - copied to application memory (indirectly by edi)
;   When the MANUAL_RESET flag is active, nothing else
;   Otherwise: the flags EVENT_SIGNALED and EVENT_WATCHED for the received event are cleared,
;   and, if MANUAL_DESTROY is active, it moves to the ObjList list of the current slot,
;   and if not active, it is destroyed normally (destroy_event.internal)
;param:
;   edi - address in the application code to copy data from EVENT.code
;retval:
;   eax - EVENT itself (we will call it a handle)
;scratched: ebx,ecx,edx,esi,edi
        mov     edx, get_event_queue ; wait_test
        call    Wait_events          ; timeout ignored
        lea     esi, [eax+EVENT.code]
        mov     ecx, (sizeof.EVENT-EVENT.code)/4
        cld
        rep movsd
        mov     byte[edi-(sizeof.EVENT-EVENT.code)+2], cl;clear priority field
;--------------------------------------
align 4
wait_finish:
        test    byte[eax+EVENT.state+3], MANUAL_RESET shr 24
        jnz     get_event_queue.ret  ; RET
        and     byte[eax+EVENT.state+3], not((EVENT_SIGNALED+EVENT_WATCHED)shr 24)
        test    byte[eax+EVENT.state+3], MANUAL_DESTROY shr 24
        jz      destroy_event.internal
        mov     ebx, [current_slot]
        add     ebx, APP_OBJ_OFFSET
        pushfd
        cli
        jmp     RemoveEventTo
;-----------------------------------------------------------------------------
align 4
destroy_event:                                     ;; EXPORT use
;info:
;   Move EVENT to the FreeEvents list, clear the magic, destroy, pid, id fields
;param:
;   eax - event
;   ebx - uid (for Dummy testing)
;retval:
;   eax - address of EVENT object (=0 => fail)
;scratched: ebx,ecx
        call    DummyTest ; not returned for fail !!!
;--------------------------------------
align 4
.internal:
        xor     ecx, ecx  ; clear common header
        pushfd
        cli
        mov     [eax+EVENT.magic], ecx
        mov     [eax+EVENT.destroy], ecx
        mov     [eax+EVENT.pid], ecx
        mov     [eax+EVENT.id], ecx
        mov     ebx, FreeEvents
        jmp     RemoveEventTo
;-----------------------------------------------------------------------------
align 4
get_event_queue:
;info:
;   client testing function for get_event_ex
;warning:
;  -don't use [current_slot],[current_slot_idx] - it is not for your slot
;  -may be assumed, that interrupt are disabled
;  -it is not restriction for scratched registers
;param:
;   ebx - APPDATA address of testing slot
;retval:
;   eax - address of EVENT object (=0 => fail)
        add     ebx, APP_EV_OFFSET
        mov     eax, [ebx+APPOBJ.bk] ; we choose from the end, according to the FIFO principle
        cmp     eax, ebx ; empty ???
        je      get_event_alone.ret0
;--------------------------------------
align 4
.ret:
        ret
;-----------------------------------------------------------------------------
align 4
get_event_alone:
;info:
;   client testing function for wait_event
;warning:
;  -don't use [current_slot],[current_slot_idx] - it is not for your slot
;  -may be assumed, that interrupt are disabled
;  -it is not restriction for scratched registers
;param:
;   ebx - APPDATA address of testing slot
;retval:
;   eax - address of EVENT object (=0 => fail)
        mov     eax, [ebx+APPDATA.wait_param]
        test    byte[eax+EVENT.state+3], EVENT_SIGNALED shr 24
        jnz     .ret
        or      byte[eax+EVENT.state+3], EVENT_WATCHED shr 24
;--------------------------------------
align 4
.ret0:
        xor     eax, eax; NO event!!!
;--------------------------------------
align 4
.ret:
        ret
;-----------------------------------------------------------------------------
align 4
sys_sendwindowmsg:                                 ;; f72
        dec     ebx
        jnz     .ret ;subfunction==1 ?
        pushfd
        cli
        sub     ecx, 2
        je      .sendkey
        dec     ecx
        jnz     .retf
;--------------------------------------
align 4
.sendbtn:
        cmp     byte[BTN_COUNT], 1
        jae     .result ;overflow
        inc     byte[BTN_COUNT]
        shl     edx, 8
        mov     [BTN_BUFF], edx
        jmp     .result
;--------------------------------------
align 4
.sendkey:
        movzx   eax, byte[KEY_COUNT]
        cmp     al, 120
        jae     .result ;overflow
        inc     byte[KEY_COUNT]
        mov     [KEY_BUFF+eax], dl
; store empty scancode
        add     eax, 120+2
        mov     [KEY_BUFF+eax], byte 0
        sub     eax, 120+2
;--------------------------------------
align 4
.result:
        setae   byte[esp + SYSCALL_STACK.eax + 4] ;we consider that initially was: dword[esp+32+4]==72
;--------------------------------------
align 4
.retf:
        popfd
;--------------------------------------
align 4
.ret:
        ret
;-----------------------------------------------------------------------------
align 4
sys_getevent:                                      ;; f11
        mov     ebx, [current_slot]  ;now this is a question, what where to put......
        pushfd  ; this is a consequence of the general concept: let the test function have
        cli     ; the right to hope to disable interrupts, as when called from shed
        call    get_event_for_app
        popfd
        mov     [esp + SYSCALL_STACK.eax], eax
        ret
;-----------------------------------------------------------------------------
align 4
sys_waitforevent:                                  ;; f10
        or      ebx, -1; infinite timeout
;--------------------------------------
align 4
sys_wait_event_timeout:                            ;; f23
        call    unprotect_from_terminate
        mov     edx, get_event_for_app; wait_test
        call    Wait_events_ex        ; ebx - timeout
        mov     [esp + SYSCALL_STACK.eax], eax
        call    protect_from_terminate
        ret
;-----------------------------------------------------------------------------
align 4
get_event_for_app:                                 ;; used from f10,f11,f23
;info:
;   client testing function for applications (f10,f23)
;warning:
;  -don't use [current_slot],[current_slot_idx] - it is not for your slot
;  -may be assumed, that interrupt are disabled
;  -it is not restriction for scratched registers
;param:
;   ebx - APPDATA address of testing slot
;retval:
;   eax - event number (=0 => no events)
        movzx   edi, bh               ; bh  is assumed as [current_slot_idx]
        mov     ecx, [ebx+APPDATA.event_mask]
        shl     edi, BSF sizeof.WDATA
        add     edi, window_data
        and     ecx, 0x7FFFFFFF
;--------------------------------------
align 4
.loop: ; until we run out all the bits of the mask
        bsr     eax, ecx       ; find a non-zero bit of the mask (31 -> 0)
        jz      .no_events     ; ran out all the bits of the mask but found nothing ???
        btr     ecx, eax       ; clear the current checking bit of the mask
       ; go to the handler of this (eax) bit
        cmp     eax, 10
        jae     .loop          ; eax=[10..31], ignored (event 11...32)
 
        cmp     eax, 3
        je      .loop          ; eax=3, ignored (event 4)
 
        cmp     eax, 4
        je      .FlagAutoReset  ; eax=4, retvals=eax+1 (event 5)
 
        cmp     eax, 5
        je      .mouse_check  ; eax=5, retvals=eax+1 (event 6)
 
        ja      .FlagAutoReset ; eax=[6..9], retvals=eax+1 (event 7...10)
 
        cmp     eax, 1
        jae     .BtKy          ; eax=[1,2],  retvals=eax+1 (event 2,3)
;--------------------------------------
align 4
.WndRedraw:                    ; eax=0, retval WndRedraw=1
        cmp     [edi + WDATA.fl_redraw], al;al==0
        jne     .result
        jmp     .loop
;--------------------------------------
align 4
.no_events:
        xor     eax, eax
        ret
;--------------------------------------
align 4
.mouse_check:    ; Mouse 5+1=6
        push    eax
        mov     eax, [current_slot]
        mov     eax, [eax + APPDATA.event_mask]
        test    eax, EVM_MOUSE_FILTER ; bit 31: active/inactive filter f.40
        jz      @f
        pop     eax
        jmp     .FlagAutoReset
;--------------------------------------
align 4
@@:
; If the window is captured and moved by the user, then no mouse events!!!
        mov     al, [mouse.active_sys_window.action]
        and     al, WINDOW_MOVE_AND_RESIZE_FLAGS
        test    al, al
        pop     eax
        jnz     .loop
;--------------------------------------
align 4
.FlagAutoReset: ; retvals: BgrRedraw=5, IPC=7, Stack=8, Debug=9
        btr     [ebx+APPDATA.occurred_events], eax
        jnc     .loop
;--------------------------------------
align 4
.result:      ; retval = eax+1
        inc     eax
        ret
;--------------------------------------
align 4
.BtKy:
        movzx   edx, bh
        movzx   edx, word[WIN_STACK+edx*2]
        je      .Keys          ; eax=1, retval Keys=2
;--------------------------------------
align 4
.Buttons:                      ; eax=2, retval Buttons=3
        cmp     byte[BTN_COUNT], 0
        je      .loop          ; empty ???
        cmp     edx, [thread_count]
        jne     .loop          ; not Top ???
        mov     edx, [BTN_BUFF]
        shr     edx, 8
        cmp     edx, 0xFFFF    ;-ID for Minimize-Button of Form
        jne     .result
        mov     [window_minimize], 1
        call    wakeup_osloop
        dec     byte[BTN_COUNT]
        jmp     .loop
;--------------------------------------
align 4
.Keys:    ; eax==1
        cmp     edx, [thread_count]
        jne     @f             ; not Top ???
        cmp     [KEY_COUNT], al; al==1
        jae     .result        ; not empty ???
;--------------------------------------
align 4
@@:
        mov     edx, hotkey_buffer
;--------------------------------------
align 4
@@:
        cmp     [edx], bh      ; bh - slot for testing
        je      .result
        add     edx, 8
        cmp     edx, hotkey_buffer+120*8
        jb      @b
        jmp     .loop
;end.
;-----------------------------------------------------------------------------

Rev 9926	Rev 9949
1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
2	;; ;;	2	;; ;;
3	;; Copyright (C) KolibriOS team 2004-2021. All rights reserved. ;;	3	;; Copyright (C) KolibriOS team 2004-2021. All rights reserved. ;;
4	;; Copyright (C) MenuetOS 2000-2004 Ville Mikael Turjanmaa ;;	4	;; Copyright (C) MenuetOS 2000-2004 Ville Mikael Turjanmaa ;;
5	;; Distributed under terms of the GNU General Public License ;;	5	;; Distributed under terms of the GNU General Public License ;;
6	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	6	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
7		7
8	$Revision: 9926 $	8	$Revision: 9949 $
9		9
10	WINDOW_MOVE_AND_RESIZE_FLAGS = \	10	WINDOW_MOVE_AND_RESIZE_FLAGS = \
11	mouse.WINDOW_RESIZE_N_FLAG + \	11	mouse.WINDOW_RESIZE_N_FLAG + \
12	mouse.WINDOW_RESIZE_W_FLAG + \	12	mouse.WINDOW_RESIZE_W_FLAG + \
13	mouse.WINDOW_RESIZE_S_FLAG + \	13	mouse.WINDOW_RESIZE_S_FLAG + \
14	mouse.WINDOW_RESIZE_E_FLAG + \	14	mouse.WINDOW_RESIZE_E_FLAG + \
15	mouse.WINDOW_MOVE_FLAG	15	mouse.WINDOW_MOVE_FLAG
16		16
17	uglobal	17	uglobal
18	align 4	18	align 4
19	event_start dd ?	19	event_start dd ?
20	event_end dd ?	20	event_end dd ?
21	event_uid dd 0	21	event_uid dd 0
22	endg	22	endg
23	EV_SPACE = 512	23	EV_SPACE = 512
24	FreeEvents = event_start-EVENT.fd ; "virtual" event, only following field used:	24	FreeEvents = event_start-EVENT.fd ; "virtual" event, only following field used:
25	; FreeEvents.fd=event_start and FreeEvents.bk=event_end	25	; FreeEvents.fd=event_start and FreeEvents.bk=event_end
26	;-----------------------------------------------------------------------------	26	;-----------------------------------------------------------------------------
27	align 4	27	align 4
28	init_events: ;; used from kernel.asm	28	init_events: ;; used from kernel.asm
29	stdcall kernel_alloc, EV_SPACE*sizeof.EVENT	29	stdcall kernel_alloc, EV_SPACE*sizeof.EVENT
30	or eax, eax	30	or eax, eax
31	jz .fail	31	jz .fail
32	; eax - current event, ebx - previous event below	32	; eax - current event, ebx - previous event below
33	mov ecx, EV_SPACE ; current - in allocated space	33	mov ecx, EV_SPACE ; current - in allocated space
34	mov ebx, FreeEvents ; previous - list beginning	34	mov ebx, FreeEvents ; previous - list beginning
35	push ebx ; it will be the end later	35	push ebx ; it will be the end later
36	;--------------------------------------	36	;--------------------------------------
37	align 4	37	align 4
38	@@:	38	@@:
39	mov [ebx+EVENT.fd], eax	39	mov [ebx+EVENT.fd], eax
40	mov [eax+EVENT.bk], ebx	40	mov [eax+EVENT.bk], ebx
41	mov ebx, eax ; previos <- current	41	mov ebx, eax ; previos <- current
42	add eax, sizeof.EVENT ; new current	42	add eax, sizeof.EVENT ; new current
43	loop @b	43	loop @b
44	pop eax ; here it became the end	44	pop eax ; here it became the end
45	mov [ebx+EVENT.fd], eax	45	mov [ebx+EVENT.fd], eax
46	mov [eax+EVENT.bk], ebx	46	mov [eax+EVENT.bk], ebx
47	;--------------------------------------	47	;--------------------------------------
48	align 4	48	align 4
49	.fail:	49	.fail:
50	ret	50	ret
51	;-----------------------------------------------------------------------------	51	;-----------------------------------------------------------------------------
52	EVENT_WATCHED = 0x10000000 ; bit 28	52	EVENT_WATCHED = 0x10000000 ; bit 28
53	EVENT_SIGNALED = 0x20000000 ; bit 29	53	EVENT_SIGNALED = 0x20000000 ; bit 29
54	MANUAL_RESET = 0x40000000 ; bit 30	54	MANUAL_RESET = 0x40000000 ; bit 30
55	MANUAL_DESTROY = 0x80000000 ; bit 31	55	MANUAL_DESTROY = 0x80000000 ; bit 31
56	;-----------------------------------------------------------------------------	56	;-----------------------------------------------------------------------------
57	align 4	57	align 4
58	create_event: ;; EXPORT use	58	create_event: ;; EXPORT use
59	;info:	59	;info:
60	; Move EVENT from the FreeEvents list to the ObjList list of the current slot;	60	; Move EVENT from the FreeEvents list to the ObjList list of the current slot;
61	; EVENT.state is set from ecx, EVENT.code indirectly from esi (if esi <> 0)	61	; EVENT.state is set from ecx, EVENT.code indirectly from esi (if esi <> 0)
62	;param:	62	;param:
63	; esi - event data	63	; esi - event data
64	; ecx - flags	64	; ecx - flags
65	;retval:	65	;retval:
66	; eax - event (=0 => fail)	66	; eax - event (=0 => fail)
67	; edx - uid	67	; edx - uid
68	;scratched: ebx,ecx,esi,edi	68	;scratched: ebx,ecx,esi,edi
69	mov ebx, [current_slot]	69	mov ebx, [current_slot]
70	mov edx, [ebx+APPDATA.tid]	70	mov edx, [ebx+APPDATA.tid]
71	add ebx, APP_OBJ_OFFSET	71	add ebx, APP_OBJ_OFFSET
72	pushfd	72	pushfd
73	cli	73	cli
74	;--------------------------------------	74	;--------------------------------------
75	align 4	75	align 4
76	set_event: ;; INTERNAL use !!! don't use for Call	76	set_event: ;; INTERNAL use !!! don't use for Call
77	;info:	77	;info:
78	; We take a new event from FreeEvents, fill its fields from ecx, edx, esi	78	; We take a new event from FreeEvents, fill its fields from ecx, edx, esi
79	; and add it to the list, which specified in ebx.	79	; and add it to the list, which specified in ebx.
80	; Return event (to eax), and it's uid (to edx)	80	; Return event (to eax), and it's uid (to edx)
81	;param:	81	;param:
82	; ebx - start-chain "virtual" event for entry new event Right of him	82	; ebx - start-chain "virtual" event for entry new event Right of him
83	; ecx - flags (copied to EVENT.state)	83	; ecx - flags (copied to EVENT.state)
84	; edx - pid (copied to EVENT.pid)	84	; edx - pid (copied to EVENT.pid)
85	; esi - event data (copied to EVENT.code indirect, =0 => skip)	85	; esi - event data (copied to EVENT.code indirect, =0 => skip)
86	;retval:	86	;retval:
87	; eax - event (=0 => fail)	87	; eax - event (=0 => fail)
88	; edx - uid	88	; edx - uid
89	;scratched: ebx,ecx,esi,edi	89	;scratched: ebx,ecx,esi,edi
90	mov eax, FreeEvents	90	mov eax, FreeEvents
91	cmp eax, [eax+EVENT.fd]	91	cmp eax, [eax+EVENT.fd]
92	jne @f ; not empty ???	92	jne @f ; not empty ???
93	pushad	93	pushad
94	call init_events	94	call init_events
95	popad	95	popad
96	jz RemoveEventTo.break ; POPF+RET	96	jz RemoveEventTo.break ; POPF+RET
97	;--------------------------------------	97	;--------------------------------------
98	align 4	98	align 4
99	@@:	99	@@:
100	mov eax, [eax+EVENT.fd]	100	mov eax, [eax+EVENT.fd]
101	mov [eax+EVENT.magic], 'EVNT'	101	mov [eax+EVENT.magic], 'EVNT'
102	mov [eax+EVENT.destroy], destroy_event.internal	102	mov [eax+EVENT.destroy], destroy_event.internal
103	mov [eax+EVENT.state], ecx	103	mov [eax+EVENT.state], ecx
104	mov [eax+EVENT.pid], edx	104	mov [eax+EVENT.pid], edx
105	inc [event_uid]	105	inc [event_uid]
106	mov edx, [event_uid]	106	mov edx, [event_uid]
107	mov [eax+EVENT.id], edx	107	mov [eax+EVENT.id], edx
108	or esi, esi	108	or esi, esi
109	jz RemoveEventTo	109	jz RemoveEventTo
110	lea edi, [eax+EVENT.code]	110	lea edi, [eax+EVENT.code]
111	mov ecx, (sizeof.EVENT -EVENT.code)/4	111	mov ecx, (sizeof.EVENT -EVENT.code)/4
112	cld	112	cld
113	rep movsd	113	rep movsd
114	;--------------------------------------	114	;--------------------------------------
115	align 4	115	align 4
116	RemoveEventTo: ;; INTERNAL use !!! don't use for Call	116	RemoveEventTo: ;; INTERNAL use !!! don't use for Call
117	;param:	117	;param:
118	; eax - pointer to event, WHICH we will insert	118	; eax - pointer to event, WHICH we will insert
119	; ebx - pointer to event, AFTER which we will insert	119	; ebx - pointer to event, AFTER which we will insert
120	;scratched: ebx,ecx	120	;scratched: ebx,ecx
121	mov ecx, eax ; ecx=eax=Self, ebx=NewLeft	121	mov ecx, eax ; ecx=eax=Self, ebx=NewLeft
122	xchg ecx, [ebx+EVENT.fd] ; NewLeft.fd=Self, ecx=NewRight	122	xchg ecx, [ebx+EVENT.fd] ; NewLeft.fd=Self, ecx=NewRight
123	cmp eax, ecx ; stop, I think...	123	cmp eax, ecx ; stop, I think...
124	je .break ; - am I not a fool?	124	je .break ; - am I not a fool?
125	mov [ecx+EVENT.bk], eax ; NewRight.bk=Self	125	mov [ecx+EVENT.bk], eax ; NewRight.bk=Self
126	xchg ebx, [eax+EVENT.bk] ; Self.bk=NewLeft, ebx=OldLeft	126	xchg ebx, [eax+EVENT.bk] ; Self.bk=NewLeft, ebx=OldLeft
127	xchg ecx, [eax+EVENT.fd] ; Self.fd=NewRight, ecx=OldRight	127	xchg ecx, [eax+EVENT.fd] ; Self.fd=NewRight, ecx=OldRight
128	mov [ebx+EVENT.fd], ecx ; OldLeft.fd=OldRight	128	mov [ebx+EVENT.fd], ecx ; OldLeft.fd=OldRight
129	mov [ecx+EVENT.bk], ebx ; OldRight.bk=OldLeft	129	mov [ecx+EVENT.bk], ebx ; OldRight.bk=OldLeft
130	;--------------------------------------	130	;--------------------------------------
131	align 4	131	align 4
132	.break:	132	.break:
133	popfd	133	popfd
134	ret	134	ret
135	;-----------------------------------------------------------------------------	135	;-----------------------------------------------------------------------------
136	align 4	136	align 4
137	NotDummyTest: ;; INTERNAL use (not returned for fail !!!)	137	NotDummyTest: ;; INTERNAL use (not returned for fail !!!)
138	pop edi	138	pop edi
139	call DummyTest ; not returned for fail !!!	139	call DummyTest ; not returned for fail !!!
140	mov ebx, eax	140	mov ebx, eax
141	mov eax, [ebx+EVENT.pid]	141	mov eax, [ebx+EVENT.pid]
142	push edi	142	push edi
143	;--------------------------------------	143	;--------------------------------------
144	align 4	144	align 4
145	.small: ; somehow ugly...	145	.small: ; somehow ugly...
146	pop edi	146	pop edi
147	pushfd	147	pushfd
148	cli	148	cli
149	call pid_to_slot ; saved all registers (eax - retval)	149	call pid_to_slot ; saved all registers (eax - retval)
150	shl eax, 8	150	shl eax, 8
151	jz RemoveEventTo.break ; POPF+RET	151	jz RemoveEventTo.break ; POPF+RET
152	jmp edi ; normal return	152	jmp edi ; normal return
153	;-----------------------------------------------------------------------------	153	;-----------------------------------------------------------------------------
154	align 4	154	align 4
155	raise_event: ;; EXPORT use	155	raise_event: ;; EXPORT use
156	;info:	156	;info:
157	; Setting up EVENT.code data	157	; Setting up EVENT.code data
158	; If is has flag EVENT_SIGNALED activated - nothing else	158	; If is has flag EVENT_SIGNALED activated - nothing else
159	; Otherwise: activate this flag, except when the EVENT_WATCHED flag is present in edx	159	; Otherwise: activate this flag, except when the EVENT_WATCHED flag is present in edx
160	; In this case EVENT_SIGNALED will activated only if EVENT_WATCHED presents in the event itself	160	; In this case EVENT_SIGNALED will activated only if EVENT_WATCHED presents in the event itself
161	;param:	161	;param:
162	; eax - event	162	; eax - event
163	; ebx - uid (for Dummy testing)	163	; ebx - uid (for Dummy testing)
164	; edx - flags	164	; edx - flags
165	; esi - event data (=0 => skip)	165	; esi - event data (=0 => skip)
166	;scratched: ebx,ecx,esi,edi	166	;scratched: ebx,ecx,esi,edi
167	call NotDummyTest ; not returned for fail !!!	167	call NotDummyTest ; not returned for fail !!!
168	or esi, esi	168	or esi, esi
169	jz @f	169	jz @f
170	lea edi, [ebx+EVENT.code]	170	lea edi, [ebx+EVENT.code]
171	mov ecx, (sizeof.EVENT -EVENT.code)/4	171	mov ecx, (sizeof.EVENT -EVENT.code)/4
172	cld	172	cld
173	rep movsd	173	rep movsd
174	;--------------------------------------	174	;--------------------------------------
175	align 4	175	align 4
176	@@:	176	@@:
177	test byte[ebx+EVENT.state+3], EVENT_SIGNALED shr 24	177	test byte[ebx+EVENT.state+3], EVENT_SIGNALED shr 24
178	jnz RemoveEventTo.break ; POPF+RET	178	jnz RemoveEventTo.break ; POPF+RET
179	bt edx, 28 ;EVENT_WATCHED	179	bt edx, 28 ;EVENT_WATCHED
180	jnc @f	180	jnc @f
181	test byte[ebx+EVENT.state+3], EVENT_WATCHED shr 24	181	test byte[ebx+EVENT.state+3], EVENT_WATCHED shr 24
182	jz RemoveEventTo.break ; POPF+RET	182	jz RemoveEventTo.break ; POPF+RET
183	;--------------------------------------	183	;--------------------------------------
184	align 4	184	align 4
185	@@:	185	@@:
186	or byte[ebx+EVENT.state+3], EVENT_SIGNALED shr 24	186	or byte[ebx+EVENT.state+3], EVENT_SIGNALED shr 24
187	add eax, SLOT_BASE+APP_EV_OFFSET	187	add eax, SLOT_BASE+APP_EV_OFFSET
188	xchg eax, ebx	188	xchg eax, ebx
189	jmp RemoveEventTo	189	jmp RemoveEventTo
190	;-----------------------------------------------------------------------------	190	;-----------------------------------------------------------------------------
191	align 4	191	align 4
192	clear_event: ;; EXPORT use	192	clear_event: ;; EXPORT use
193	;info:	193	;info:
194	;	194	;
195	;param:	195	;param:
196	; eax - event	196	; eax - event
197	; ebx - uid (for Dummy testing)	197	; ebx - uid (for Dummy testing)
198	;scratched: ebx,ecx	198	;scratched: ebx,ecx
199	call NotDummyTest ; not returned for fail !!!	199	call NotDummyTest ; not returned for fail !!!
200	add eax, SLOT_BASE+APP_OBJ_OFFSET	200	add eax, SLOT_BASE+APP_OBJ_OFFSET
201	and byte[ebx+EVENT.state+3], not((EVENT_SIGNALED+EVENT_WATCHED)shr 24)	201	and byte[ebx+EVENT.state+3], not((EVENT_SIGNALED+EVENT_WATCHED)shr 24)
202	xchg eax, ebx	202	xchg eax, ebx
203	jmp RemoveEventTo	203	jmp RemoveEventTo
204	;-----------------------------------------------------------------------------	204	;-----------------------------------------------------------------------------
205	align 4	205	align 4
206	send_event: ;; EXPORT use	206	send_event: ;; EXPORT use
207	;info:	207	;info:
208	; Creates a new EVENT (pulls from the FreeEvents list) in the EventList list	208	; Creates a new EVENT (pulls from the FreeEvents list) in the EventList list
209	; of target slot (eax=pid), with data from esi indirectly, and state=EVENT_SIGNALED	209	; of target slot (eax=pid), with data from esi indirectly, and state=EVENT_SIGNALED
210	;param:	210	;param:
211	; eax - slots pid, to sending new event	211	; eax - slots pid, to sending new event
212	; esi - pointer to sending data (in code field of new event)	212	; esi - pointer to sending data (in code field of new event)
213	;retval:	213	;retval:
214	; eax - event (=0 => fail)	214	; eax - event (=0 => fail)
215	; edx - uid	215	; edx - uid
216	;warning:	216	;warning:
217	; may be used as CDECL with such prefix...	217	; may be used as CDECL with such prefix...
218	; mov esi,[esp+8]	218	; mov esi,[esp+8]
219	; mov eax,[esp+4]	219	; mov eax,[esp+4]
220	; but not as STDCALL :(	220	; but not as STDCALL :(
221	;scratched: ebx,ecx,esi,edi	221	;scratched: ebx,ecx,esi,edi
222	mov edx, eax	222	mov edx, eax
223	call NotDummyTest.small ; not returned for fail !!!	223	call NotDummyTest.small ; not returned for fail !!!
224	lea ebx, [eax+SLOT_BASE+APP_EV_OFFSET]	224	lea ebx, [eax+SLOT_BASE+APP_EV_OFFSET]
225	mov ecx, EVENT_SIGNALED	225	mov ecx, EVENT_SIGNALED
226	jmp set_event	226	jmp set_event
227	;-----------------------------------------------------------------------------	227	;-----------------------------------------------------------------------------
228	align 4	228	align 4
229	DummyTest: ;; INTERNAL use (not returned for fail !!!)	229	DummyTest: ;; INTERNAL use (not returned for fail !!!)
230	;param:	230	;param:
231	; eax - event	231	; eax - event
232	; ebx - uid (for Dummy testing)	232	; ebx - uid (for Dummy testing)
233	cmp [eax+EVENT.magic], 'EVNT'	233	cmp [eax+EVENT.magic], 'EVNT'
234	jne @f	234	jne @f
235	cmp [eax+EVENT.id], ebx	235	cmp [eax+EVENT.id], ebx
236	je .ret	236	je .ret
237	;--------------------------------------	237	;--------------------------------------
238	align 4	238	align 4
239	@@:	239	@@:
240	pop eax	240	pop eax
241	xor eax, eax	241	xor eax, eax
242	;--------------------------------------	242	;--------------------------------------
243	align 4	243	align 4
244	.ret:	244	.ret:
245	ret	245	ret
246	;-----------------------------------------------------------------------------	246	;-----------------------------------------------------------------------------
247	align 4	247	align 4
248	Wait_events:	248	Wait_events:
249	or ebx, -1; infinite timeout	249	or ebx, -1; infinite timeout
250	;--------------------------------------	250	;--------------------------------------
251	align 4	251	align 4
252	Wait_events_ex:	252	Wait_events_ex:
253	;info:	253	;info:
254	; Waiting for an "abstract" event by moving the slot to the 5th position.	254	; Waiting for an "abstract" event by moving the slot to the 5th position.
255	; Abstractness lies in the fact, that the fact of an event is determined by the APPDATA.wait_test function,	255	; Abstractness lies in the fact, that the fact of an event is determined by the APPDATA.wait_test function,
256	; which is set by the client and can be actually anything.	256	; which is set by the client and can be actually anything.
257	; This allows the shed to reliably determine the fact of the event, and not make "idle" switches,	257	; This allows the shed to reliably determine the fact of the event, and not make "idle" switches,
258	; intended for showdowns like "friend / foe" within the problem.	258	; intended for showdowns like "friend / foe" within the problem.
259	;param:	259	;param:
260	; edx - wait_test, client testing function (code address)	260	; edx - wait_test, client testing function (code address)
261	; ecx - wait_param, additional parameter, possibly needed for [wait_test]	261	; ecx - wait_param, additional parameter, possibly needed for [wait_test]
262	; ebx - wait_timeout	262	; ebx - wait_timeout
263	;retval:	263	;retval:
264	; eax - call result [wait_test] (=0 => timeout)	264	; eax - call result [wait_test] (=0 => timeout)
265	;scratched: esi	265	;scratched: esi
266	mov esi, [current_slot]	266	mov esi, [current_slot]
267	mov [esi+APPDATA.wait_param], ecx	267	mov [esi+APPDATA.wait_param], ecx
268	pushad	268	pushad
269	mov ebx, esi ;now this is a question, what where to put..........	269	mov ebx, esi ;now this is a question, what where to put..........
270	pushfd ; this is a consequence of the general concept: let the test function have	270	pushfd ; this is a consequence of the general concept: let the test function have
271	cli ; the right to hope to disable interrupts, as when called from shed	271	cli ; the right to hope to disable interrupts, as when called from shed
272	call edx	272	call edx
273	popfd	273	popfd
274	mov [esp+28], eax	274	mov [esp+28], eax
275	popad	275	popad
276	or eax, eax	276	or eax, eax
277	jnz @f ;RET	277	jnz @f ;RET
278	mov [esi+APPDATA.wait_test], edx	278	mov [esi+APPDATA.wait_test], edx
279	mov [esi+APPDATA.wait_timeout], ebx	279	mov [esi+APPDATA.wait_timeout], ebx
280	mov eax, [timer_ticks]	280	mov eax, [timer_ticks]
281	mov [esi+APPDATA.wait_begin], eax	281	mov [esi+APPDATA.wait_begin], eax
282	mov [esi + APPDATA.state], TSTATE_WAITING	282	mov [esi + APPDATA.state], TSTATE_WAITING
283	call change_task	283	call change_task
284	mov eax, [esi+APPDATA.wait_param]	284	mov eax, [esi+APPDATA.wait_param]
285	;--------------------------------------	285	;--------------------------------------
286	align 4	286	align 4
287	@@:	287	@@:
288	ret	288	ret
289	;-----------------------------------------------------------------------------	289	;-----------------------------------------------------------------------------
290	align 4	290	align 4
291	wait_event: ;; EXPORT use	291	wait_event: ;; EXPORT use
292	;info:	292	;info:
293	; Waiting for the EVENT_SIGNALED flag in a very specific Event	293	; Waiting for the EVENT_SIGNALED flag in a very specific Event
294	; (set, presumably, via raise_event)	294	; (set, presumably, via raise_event)
295	; When the MANUAL_RESET flag is active, nothing else	295	; When the MANUAL_RESET flag is active, nothing else
296	; Otherwise: the flags EVENT_SIGNALED and EVENT_WATCHED for the received event are cleared,	296	; Otherwise: the flags EVENT_SIGNALED and EVENT_WATCHED for the received event are cleared,
297	; and, if MANUAL_DESTROY is active, it moves to the ObjList list of the current slot,	297	; and, if MANUAL_DESTROY is active, it moves to the ObjList list of the current slot,
298	; and if not active, it is destroyed normally (destroy_event.internal)	298	; and if not active, it is destroyed normally (destroy_event.internal)
299	;param:	299	;param:
300	; eax - event	300	; eax - event
301	; ebx - uid (for Dummy testing)	301	; ebx - uid (for Dummy testing)
302	;scratched: ecx,edx,esi	302	;scratched: ecx,edx,esi
303	call DummyTest	303	call DummyTest
304	mov ecx, eax ; wait_param	304	mov ecx, eax ; wait_param
305	mov edx, get_event_alone ; wait_test	305	mov edx, get_event_alone ; wait_test
306	call Wait_events ; timeout ignored	306	call Wait_events ; timeout ignored
307	jmp wait_finish	307	jmp wait_finish
308	;-----------------------------------------------------------------------------	308	;-----------------------------------------------------------------------------
309	align 4	309	align 4
310	wait_event_timeout:	310	wait_event_timeout:
311	;param:	311	;param:
312	; eax - event	312	; eax - event
313	; ebx - uid (for Dummy testing)	313	; ebx - uid (for Dummy testing)
314	; ecx - timeout in timer ticks	314	; ecx - timeout in timer ticks
315	;retval:	315	;retval:
316	; eax - EVENT handle or 0 if timeout	316	; eax - EVENT handle or 0 if timeout
317	call DummyTest	317	call DummyTest
318	mov ebx, ecx	318	mov ebx, ecx
319	mov ecx, eax ; wait_param	319	mov ecx, eax ; wait_param
320	mov edx, get_event_alone ; wait_test	320	mov edx, get_event_alone ; wait_test
321	call Wait_events_ex	321	call Wait_events_ex
322	test eax, eax	322	test eax, eax
323	jnz wait_finish	323	jnz wait_finish
324	ret	324	ret
325	;-----------------------------------------------------------------------------	325	;-----------------------------------------------------------------------------
326	align 4	326	align 4
327	get_event_ex: ;; f68:14	327	get_event_ex: ;; f68:14
328	;info:	328	;info:
329	; Waiting for any event in the EventList of the current slot	329	; Waiting for any event in the EventList of the current slot
330	; Code event data - copied to application memory (indirectly by edi)	330	; Code event data - copied to application memory (indirectly by edi)
331	; When the MANUAL_RESET flag is active, nothing else	331	; When the MANUAL_RESET flag is active, nothing else
332	; Otherwise: the flags EVENT_SIGNALED and EVENT_WATCHED for the received event are cleared,	332	; Otherwise: the flags EVENT_SIGNALED and EVENT_WATCHED for the received event are cleared,
333	; and, if MANUAL_DESTROY is active, it moves to the ObjList list of the current slot,	333	; and, if MANUAL_DESTROY is active, it moves to the ObjList list of the current slot,
334	; and if not active, it is destroyed normally (destroy_event.internal)	334	; and if not active, it is destroyed normally (destroy_event.internal)
335	;param:	335	;param:
336	; edi - address in the application code to copy data from EVENT.code	336	; edi - address in the application code to copy data from EVENT.code
337	;retval:	337	;retval:
338	; eax - EVENT itself (we will call it a handle)	338	; eax - EVENT itself (we will call it a handle)
339	;scratched: ebx,ecx,edx,esi,edi	339	;scratched: ebx,ecx,edx,esi,edi
340	mov edx, get_event_queue ; wait_test	340	mov edx, get_event_queue ; wait_test
341	call Wait_events ; timeout ignored	341	call Wait_events ; timeout ignored
342	lea esi, [eax+EVENT.code]	342	lea esi, [eax+EVENT.code]
343	mov ecx, (sizeof.EVENT-EVENT.code)/4	343	mov ecx, (sizeof.EVENT-EVENT.code)/4
344	cld	344	cld
345	rep movsd	345	rep movsd
346	mov byte[edi-(sizeof.EVENT-EVENT.code)+2], cl;clear priority field	346	mov byte[edi-(sizeof.EVENT-EVENT.code)+2], cl;clear priority field
347	;--------------------------------------	347	;--------------------------------------
348	align 4	348	align 4
349	wait_finish:	349	wait_finish:
350	test byte[eax+EVENT.state+3], MANUAL_RESET shr 24	350	test byte[eax+EVENT.state+3], MANUAL_RESET shr 24
351	jnz get_event_queue.ret ; RET	351	jnz get_event_queue.ret ; RET
352	and byte[eax+EVENT.state+3], not((EVENT_SIGNALED+EVENT_WATCHED)shr 24)	352	and byte[eax+EVENT.state+3], not((EVENT_SIGNALED+EVENT_WATCHED)shr 24)
353	test byte[eax+EVENT.state+3], MANUAL_DESTROY shr 24	353	test byte[eax+EVENT.state+3], MANUAL_DESTROY shr 24
354	jz destroy_event.internal	354	jz destroy_event.internal
355	mov ebx, [current_slot]	355	mov ebx, [current_slot]
356	add ebx, APP_OBJ_OFFSET	356	add ebx, APP_OBJ_OFFSET
357	pushfd	357	pushfd
358	cli	358	cli
359	jmp RemoveEventTo	359	jmp RemoveEventTo
360	;-----------------------------------------------------------------------------	360	;-----------------------------------------------------------------------------
361	align 4	361	align 4
362	destroy_event: ;; EXPORT use	362	destroy_event: ;; EXPORT use
363	;info:	363	;info:
364	; Move EVENT to the FreeEvents list, clear the magic, destroy, pid, id fields	364	; Move EVENT to the FreeEvents list, clear the magic, destroy, pid, id fields
365	;param:	365	;param:
366	; eax - event	366	; eax - event
367	; ebx - uid (for Dummy testing)	367	; ebx - uid (for Dummy testing)
368	;retval:	368	;retval:
369	; eax - address of EVENT object (=0 => fail)	369	; eax - address of EVENT object (=0 => fail)
370	;scratched: ebx,ecx	370	;scratched: ebx,ecx
371	call DummyTest ; not returned for fail !!!	371	call DummyTest ; not returned for fail !!!
372	;--------------------------------------	372	;--------------------------------------
373	align 4	373	align 4
374	.internal:	374	.internal:
375	xor ecx, ecx ; clear common header	375	xor ecx, ecx ; clear common header
376	pushfd	376	pushfd
377	cli	377	cli
378	mov [eax+EVENT.magic], ecx	378	mov [eax+EVENT.magic], ecx
379	mov [eax+EVENT.destroy], ecx	379	mov [eax+EVENT.destroy], ecx
380	mov [eax+EVENT.pid], ecx	380	mov [eax+EVENT.pid], ecx
381	mov [eax+EVENT.id], ecx	381	mov [eax+EVENT.id], ecx
382	mov ebx, FreeEvents	382	mov ebx, FreeEvents
383	jmp RemoveEventTo	383	jmp RemoveEventTo
384	;-----------------------------------------------------------------------------	384	;-----------------------------------------------------------------------------
385	align 4	385	align 4
386	get_event_queue:	386	get_event_queue:
387	;info:	387	;info:
388	; client testing function for get_event_ex	388	; client testing function for get_event_ex
389	;warning:	389	;warning:
390	; -don't use [TASK_BASE],[current_slot],[current_slot_idx] - it is not for your slot	390	; -don't use [current_slot],[current_slot_idx] - it is not for your slot
391	; -may be assumed, that interrupt are disabled	391	; -may be assumed, that interrupt are disabled
392	; -it is not restriction for scratched registers	392	; -it is not restriction for scratched registers
393	;param:	393	;param:
394	; ebx - APPDATA address of testing slot	394	; ebx - APPDATA address of testing slot
395	;retval:	395	;retval:
396	; eax - address of EVENT object (=0 => fail)	396	; eax - address of EVENT object (=0 => fail)
397	add ebx, APP_EV_OFFSET	397	add ebx, APP_EV_OFFSET
398	mov eax, [ebx+APPOBJ.bk] ; we choose from the end, according to the FIFO principle	398	mov eax, [ebx+APPOBJ.bk] ; we choose from the end, according to the FIFO principle
399	cmp eax, ebx ; empty ???	399	cmp eax, ebx ; empty ???
400	je get_event_alone.ret0	400	je get_event_alone.ret0
401	;--------------------------------------	401	;--------------------------------------
402	align 4	402	align 4
403	.ret:	403	.ret:
404	ret	404	ret
405	;-----------------------------------------------------------------------------	405	;-----------------------------------------------------------------------------
406	align 4	406	align 4
407	get_event_alone:	407	get_event_alone:
408	;info:	408	;info:
409	; client testing function for wait_event	409	; client testing function for wait_event
410	;warning:	410	;warning:
411	; -don't use [TASK_BASE],[current_slot],[current_slot_idx] - it is not for your slot	411	; -don't use [current_slot],[current_slot_idx] - it is not for your slot
412	; -may be assumed, that interrupt are disabled	412	; -may be assumed, that interrupt are disabled
413	; -it is not restriction for scratched registers	413	; -it is not restriction for scratched registers
414	;param:	414	;param:
415	; ebx - APPDATA address of testing slot	415	; ebx - APPDATA address of testing slot
416	;retval:	416	;retval:
417	; eax - address of EVENT object (=0 => fail)	417	; eax - address of EVENT object (=0 => fail)
418	mov eax, [ebx+APPDATA.wait_param]	418	mov eax, [ebx+APPDATA.wait_param]
419	test byte[eax+EVENT.state+3], EVENT_SIGNALED shr 24	419	test byte[eax+EVENT.state+3], EVENT_SIGNALED shr 24
420	jnz .ret	420	jnz .ret
421	or byte[eax+EVENT.state+3], EVENT_WATCHED shr 24	421	or byte[eax+EVENT.state+3], EVENT_WATCHED shr 24
422	;--------------------------------------	422	;--------------------------------------
423	align 4	423	align 4
424	.ret0:	424	.ret0:
425	xor eax, eax; NO event!!!	425	xor eax, eax; NO event!!!
426	;--------------------------------------	426	;--------------------------------------
427	align 4	427	align 4
428	.ret:	428	.ret:
429	ret	429	ret
430	;-----------------------------------------------------------------------------	430	;-----------------------------------------------------------------------------
431	align 4	431	align 4
432	sys_sendwindowmsg: ;; f72	432	sys_sendwindowmsg: ;; f72
433	dec ebx	433	dec ebx
434	jnz .ret ;subfunction==1 ?	434	jnz .ret ;subfunction==1 ?
435	pushfd	435	pushfd
436	cli	436	cli
437	sub ecx, 2	437	sub ecx, 2
438	je .sendkey	438	je .sendkey
439	dec ecx	439	dec ecx
440	jnz .retf	440	jnz .retf
441	;--------------------------------------	441	;--------------------------------------
442	align 4	442	align 4
443	.sendbtn:	443	.sendbtn:
444	cmp byte[BTN_COUNT], 1	444	cmp byte[BTN_COUNT], 1
445	jae .result ;overflow	445	jae .result ;overflow
446	inc byte[BTN_COUNT]	446	inc byte[BTN_COUNT]
447	shl edx, 8	447	shl edx, 8
448	mov [BTN_BUFF], edx	448	mov [BTN_BUFF], edx
449	jmp .result	449	jmp .result
450	;--------------------------------------	450	;--------------------------------------
451	align 4	451	align 4
452	.sendkey:	452	.sendkey:
453	movzx eax, byte[KEY_COUNT]	453	movzx eax, byte[KEY_COUNT]
454	cmp al, 120	454	cmp al, 120
455	jae .result ;overflow	455	jae .result ;overflow
456	inc byte[KEY_COUNT]	456	inc byte[KEY_COUNT]
457	mov [KEY_BUFF+eax], dl	457	mov [KEY_BUFF+eax], dl
458	; store empty scancode	458	; store empty scancode
459	add eax, 120+2	459	add eax, 120+2
460	mov [KEY_BUFF+eax], byte 0	460	mov [KEY_BUFF+eax], byte 0
461	sub eax, 120+2	461	sub eax, 120+2
462	;--------------------------------------	462	;--------------------------------------
463	align 4	463	align 4
464	.result:	464	.result:
465	setae byte[esp + SYSCALL_STACK.eax + 4] ;we consider that initially was: dword[esp+32+4]==72	465	setae byte[esp + SYSCALL_STACK.eax + 4] ;we consider that initially was: dword[esp+32+4]==72
466	;--------------------------------------	466	;--------------------------------------
467	align 4	467	align 4
468	.retf:	468	.retf:
469	popfd	469	popfd
470	;--------------------------------------	470	;--------------------------------------
471	align 4	471	align 4
472	.ret:	472	.ret:
473	ret	473	ret
474	;-----------------------------------------------------------------------------	474	;-----------------------------------------------------------------------------
475	align 4	475	align 4
476	sys_getevent: ;; f11	476	sys_getevent: ;; f11
477	mov ebx, [current_slot] ;now this is a question, what where to put......	477	mov ebx, [current_slot] ;now this is a question, what where to put......
478	pushfd ; this is a consequence of the general concept: let the test function have	478	pushfd ; this is a consequence of the general concept: let the test function have
479	cli ; the right to hope to disable interrupts, as when called from shed	479	cli ; the right to hope to disable interrupts, as when called from shed
480	call get_event_for_app	480	call get_event_for_app
481	popfd	481	popfd
482	mov [esp + SYSCALL_STACK.eax], eax	482	mov [esp + SYSCALL_STACK.eax], eax
483	ret	483	ret
484	;-----------------------------------------------------------------------------	484	;-----------------------------------------------------------------------------
485	align 4	485	align 4
486	sys_waitforevent: ;; f10	486	sys_waitforevent: ;; f10
487	or ebx, -1; infinite timeout	487	or ebx, -1; infinite timeout
488	;--------------------------------------	488	;--------------------------------------
489	align 4	489	align 4
490	sys_wait_event_timeout: ;; f23	490	sys_wait_event_timeout: ;; f23
491	call unprotect_from_terminate	491	call unprotect_from_terminate
492	mov edx, get_event_for_app; wait_test	492	mov edx, get_event_for_app; wait_test
493	call Wait_events_ex ; ebx - timeout	493	call Wait_events_ex ; ebx - timeout
494	mov [esp + SYSCALL_STACK.eax], eax	494	mov [esp + SYSCALL_STACK.eax], eax
495	call protect_from_terminate	495	call protect_from_terminate
496	ret	496	ret
497	;-----------------------------------------------------------------------------	497	;-----------------------------------------------------------------------------
498	align 4	498	align 4
499	get_event_for_app: ;; used from f10,f11,f23	499	get_event_for_app: ;; used from f10,f11,f23
500	;info:	500	;info:

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(root)/kernel/trunk/gui/event.inc @ 8866 – Rev 9926 → 9949