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: 8869 $
 
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]
        add     ebx, APP_OBJ_OFFSET
        mov     edx, [TASK_BASE]
        mov     edx, [edx+TASKDATA.pid]
        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     eax, [TASK_BASE]
        mov     [eax+TASKDATA.state], 5
        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 [TASK_BASE],[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 [TASK_BASE],[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+32+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+32], 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+32], 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 [TASK_BASE],[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]
        shl     edi, 5
        add     edi, TASK_TABLE     ; edi is assumed as [TASK_BASE]
        mov     ecx, [edi+TASKDATA.event_mask]
        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-twdw+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, [TASK_BASE]
        mov     eax, [eax + TASKDATA.event_mask]
        test    eax, 0x80000000 ; 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 8867	Rev 8869
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: 8867 $	8	$Revision: 8869 $
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	add ebx, APP_OBJ_OFFSET	70	add ebx, APP_OBJ_OFFSET
71	mov edx, [TASK_BASE]	71	mov edx, [TASK_BASE]
72	mov edx, [edx+TASKDATA.pid]	72	mov edx, [edx+TASKDATA.pid]
73	pushfd	73	pushfd
74	cli	74	cli
75	;--------------------------------------	75	;--------------------------------------
76	align 4	76	align 4
77	set_event: ;; INTERNAL use !!! don't use for Call	77	set_event: ;; INTERNAL use !!! don't use for Call
78	;info:	78	;info:
79	; We take a new event from FreeEvents, fill its fields from ecx, edx, esi	79	; We take a new event from FreeEvents, fill its fields from ecx, edx, esi
80	; and add it to the list, which specified in ebx.	80	; and add it to the list, which specified in ebx.
81	; Return event (to eax), and it's uid (to edx)	81	; Return event (to eax), and it's uid (to edx)
82	;param:	82	;param:
83	; ebx - start-chain "virtual" event for entry new event Right of him	83	; ebx - start-chain "virtual" event for entry new event Right of him
84	; ecx - flags (copied to EVENT.state)	84	; ecx - flags (copied to EVENT.state)
85	; edx - pid (copied to EVENT.pid)	85	; edx - pid (copied to EVENT.pid)
86	; esi - event data (copied to EVENT.code indirect, =0 => skip)	86	; esi - event data (copied to EVENT.code indirect, =0 => skip)
87	;retval:	87	;retval:
88	; eax - event (=0 => fail)	88	; eax - event (=0 => fail)
89	; edx - uid	89	; edx - uid
90	;scratched: ebx,ecx,esi,edi	90	;scratched: ebx,ecx,esi,edi
91	mov eax, FreeEvents	91	mov eax, FreeEvents
92	cmp eax, [eax+EVENT.fd]	92	cmp eax, [eax+EVENT.fd]
93	jne @f ; not empty ???	93	jne @f ; not empty ???
94	pushad	94	pushad
95	call init_events	95	call init_events
96	popad	96	popad
97	jz RemoveEventTo.break ; POPF+RET	97	jz RemoveEventTo.break ; POPF+RET
98	;--------------------------------------	98	;--------------------------------------
99	align 4	99	align 4
100	@@:	100	@@:
101	mov eax, [eax+EVENT.fd]	101	mov eax, [eax+EVENT.fd]
102	mov [eax+EVENT.magic], 'EVNT'	102	mov [eax+EVENT.magic], 'EVNT'
103	mov [eax+EVENT.destroy], destroy_event.internal	103	mov [eax+EVENT.destroy], destroy_event.internal
104	mov [eax+EVENT.state], ecx	104	mov [eax+EVENT.state], ecx
105	mov [eax+EVENT.pid], edx	105	mov [eax+EVENT.pid], edx
106	inc [event_uid]	106	inc [event_uid]
107	mov edx, [event_uid]	107	mov edx, [event_uid]
108	mov [eax+EVENT.id], edx	108	mov [eax+EVENT.id], edx
109	or esi, esi	109	or esi, esi
110	jz RemoveEventTo	110	jz RemoveEventTo
111	lea edi, [eax+EVENT.code]	111	lea edi, [eax+EVENT.code]
112	mov ecx, (sizeof.EVENT -EVENT.code)/4	112	mov ecx, (sizeof.EVENT -EVENT.code)/4
113	cld	113	cld
114	rep movsd	114	rep movsd
115	;--------------------------------------	115	;--------------------------------------
116	align 4	116	align 4
117	RemoveEventTo: ;; INTERNAL use !!! don't use for Call	117	RemoveEventTo: ;; INTERNAL use !!! don't use for Call
118	;param:	118	;param:
119	; eax - pointer to event, WHICH we will insert	119	; eax - pointer to event, WHICH we will insert
120	; ebx - pointer to event, AFTER which we will insert	120	; ebx - pointer to event, AFTER which we will insert
121	;scratched: ebx,ecx	121	;scratched: ebx,ecx
122	mov ecx, eax ; ecx=eax=Self, ebx=NewLeft	122	mov ecx, eax ; ecx=eax=Self, ebx=NewLeft
123	xchg ecx, [ebx+EVENT.fd] ; NewLeft.fd=Self, ecx=NewRight	123	xchg ecx, [ebx+EVENT.fd] ; NewLeft.fd=Self, ecx=NewRight
124	cmp eax, ecx ; stop, I think...	124	cmp eax, ecx ; stop, I think...
125	je .break ; - am I not a fool?	125	je .break ; - am I not a fool?
126	mov [ecx+EVENT.bk], eax ; NewRight.bk=Self	126	mov [ecx+EVENT.bk], eax ; NewRight.bk=Self
127	xchg ebx, [eax+EVENT.bk] ; Self.bk=NewLeft, ebx=OldLeft	127	xchg ebx, [eax+EVENT.bk] ; Self.bk=NewLeft, ebx=OldLeft
128	xchg ecx, [eax+EVENT.fd] ; Self.fd=NewRight, ecx=OldRight	128	xchg ecx, [eax+EVENT.fd] ; Self.fd=NewRight, ecx=OldRight
129	mov [ebx+EVENT.fd], ecx ; OldLeft.fd=OldRight	129	mov [ebx+EVENT.fd], ecx ; OldLeft.fd=OldRight
130	mov [ecx+EVENT.bk], ebx ; OldRight.bk=OldLeft	130	mov [ecx+EVENT.bk], ebx ; OldRight.bk=OldLeft
131	;--------------------------------------	131	;--------------------------------------
132	align 4	132	align 4
133	.break:	133	.break:
134	popfd	134	popfd
135	ret	135	ret
136	;-----------------------------------------------------------------------------	136	;-----------------------------------------------------------------------------
137	align 4	137	align 4
138	NotDummyTest: ;; INTERNAL use (not returned for fail !!!)	138	NotDummyTest: ;; INTERNAL use (not returned for fail !!!)
139	pop edi	139	pop edi
140	call DummyTest ; not returned for fail !!!	140	call DummyTest ; not returned for fail !!!
141	mov ebx, eax	141	mov ebx, eax
142	mov eax, [ebx+EVENT.pid]	142	mov eax, [ebx+EVENT.pid]
143	push edi	143	push edi
144	;--------------------------------------	144	;--------------------------------------
145	align 4	145	align 4
146	.small: ; somehow ugly...	146	.small: ; somehow ugly...
147	pop edi	147	pop edi
148	pushfd	148	pushfd
149	cli	149	cli
150	call pid_to_slot ; saved all registers (eax - retval)	150	call pid_to_slot ; saved all registers (eax - retval)
151	shl eax, 8	151	shl eax, 8
152	jz RemoveEventTo.break ; POPF+RET	152	jz RemoveEventTo.break ; POPF+RET
153	jmp edi ; normal return	153	jmp edi ; normal return
154	;-----------------------------------------------------------------------------	154	;-----------------------------------------------------------------------------
155	align 4	155	align 4
156	raise_event: ;; EXPORT use	156	raise_event: ;; EXPORT use
157	;info:	157	;info:
158	; Setting up EVENT.code data	158	; Setting up EVENT.code data
159	; If is has flag EVENT_SIGNALED activated - nothing else	159	; If is has flag EVENT_SIGNALED activated - nothing else
160	; Otherwise: activate this flag, except when the EVENT_WATCHED flag is present in edx	160	; Otherwise: activate this flag, except when the EVENT_WATCHED flag is present in edx
161	; In this case EVENT_SIGNALED will activated only if EVENT_WATCHED presents in the event itself	161	; In this case EVENT_SIGNALED will activated only if EVENT_WATCHED presents in the event itself
162	;param:	162	;param:
163	; eax - event	163	; eax - event
164	; ebx - uid (for Dummy testing)	164	; ebx - uid (for Dummy testing)
165	; edx - flags	165	; edx - flags
166	; esi - event data (=0 => skip)	166	; esi - event data (=0 => skip)
167	;scratched: ebx,ecx,esi,edi	167	;scratched: ebx,ecx,esi,edi
168	call NotDummyTest ; not returned for fail !!!	168	call NotDummyTest ; not returned for fail !!!
169	or esi, esi	169	or esi, esi
170	jz @f	170	jz @f
171	lea edi, [ebx+EVENT.code]	171	lea edi, [ebx+EVENT.code]
172	mov ecx, (sizeof.EVENT -EVENT.code)/4	172	mov ecx, (sizeof.EVENT -EVENT.code)/4
173	cld	173	cld
174	rep movsd	174	rep movsd
175	;--------------------------------------	175	;--------------------------------------
176	align 4	176	align 4
177	@@:	177	@@:
178	test byte[ebx+EVENT.state+3], EVENT_SIGNALED shr 24	178	test byte[ebx+EVENT.state+3], EVENT_SIGNALED shr 24
179	jnz RemoveEventTo.break ; POPF+RET	179	jnz RemoveEventTo.break ; POPF+RET
180	bt edx, 28 ;EVENT_WATCHED	180	bt edx, 28 ;EVENT_WATCHED
181	jnc @f	181	jnc @f
182	test byte[ebx+EVENT.state+3], EVENT_WATCHED shr 24	182	test byte[ebx+EVENT.state+3], EVENT_WATCHED shr 24
183	jz RemoveEventTo.break ; POPF+RET	183	jz RemoveEventTo.break ; POPF+RET
184	;--------------------------------------	184	;--------------------------------------
185	align 4	185	align 4
186	@@:	186	@@:
187	or byte[ebx+EVENT.state+3], EVENT_SIGNALED shr 24	187	or byte[ebx+EVENT.state+3], EVENT_SIGNALED shr 24
188	add eax, SLOT_BASE+APP_EV_OFFSET	188	add eax, SLOT_BASE+APP_EV_OFFSET
189	xchg eax, ebx	189	xchg eax, ebx
190	jmp RemoveEventTo	190	jmp RemoveEventTo
191	;-----------------------------------------------------------------------------	191	;-----------------------------------------------------------------------------
192	align 4	192	align 4
193	clear_event: ;; EXPORT use	193	clear_event: ;; EXPORT use
194	;info:	194	;info:
195	;	195	;
196	;param:	196	;param:
197	; eax - event	197	; eax - event
198	; ebx - uid (for Dummy testing)	198	; ebx - uid (for Dummy testing)
199	;scratched: ebx,ecx	199	;scratched: ebx,ecx
200	call NotDummyTest ; not returned for fail !!!	200	call NotDummyTest ; not returned for fail !!!
201	add eax, SLOT_BASE+APP_OBJ_OFFSET	201	add eax, SLOT_BASE+APP_OBJ_OFFSET
202	and byte[ebx+EVENT.state+3], not((EVENT_SIGNALED+EVENT_WATCHED)shr 24)	202	and byte[ebx+EVENT.state+3], not((EVENT_SIGNALED+EVENT_WATCHED)shr 24)
203	xchg eax, ebx	203	xchg eax, ebx
204	jmp RemoveEventTo	204	jmp RemoveEventTo
205	;-----------------------------------------------------------------------------	205	;-----------------------------------------------------------------------------
206	align 4	206	align 4
207	send_event: ;; EXPORT use	207	send_event: ;; EXPORT use
208	;info:	208	;info:
209	; Creates a new EVENT (pulls from the FreeEvents list) in the EventList list	209	; Creates a new EVENT (pulls from the FreeEvents list) in the EventList list
210	; of target slot (eax=pid), with data from esi indirectly, and state=EVENT_SIGNALED	210	; of target slot (eax=pid), with data from esi indirectly, and state=EVENT_SIGNALED
211	;param:	211	;param:
212	; eax - slots pid, to sending new event	212	; eax - slots pid, to sending new event
213	; esi - pointer to sending data (in code field of new event)	213	; esi - pointer to sending data (in code field of new event)
214	;retval:	214	;retval:
215	; eax - event (=0 => fail)	215	; eax - event (=0 => fail)
216	; edx - uid	216	; edx - uid
217	;warning:	217	;warning:
218	; may be used as CDECL with such prefix...	218	; may be used as CDECL with such prefix...
219	; mov esi,[esp+8]	219	; mov esi,[esp+8]
220	; mov eax,[esp+4]	220	; mov eax,[esp+4]
221	; but not as STDCALL :(	221	; but not as STDCALL :(
222	;scratched: ebx,ecx,esi,edi	222	;scratched: ebx,ecx,esi,edi
223	mov edx, eax	223	mov edx, eax
224	call NotDummyTest.small ; not returned for fail !!!	224	call NotDummyTest.small ; not returned for fail !!!
225	lea ebx, [eax+SLOT_BASE+APP_EV_OFFSET]	225	lea ebx, [eax+SLOT_BASE+APP_EV_OFFSET]
226	mov ecx, EVENT_SIGNALED	226	mov ecx, EVENT_SIGNALED
227	jmp set_event	227	jmp set_event
228	;-----------------------------------------------------------------------------	228	;-----------------------------------------------------------------------------
229	align 4	229	align 4
230	DummyTest: ;; INTERNAL use (not returned for fail !!!)	230	DummyTest: ;; INTERNAL use (not returned for fail !!!)
231	;param:	231	;param:
232	; eax - event	232	; eax - event
233	; ebx - uid (for Dummy testing)	233	; ebx - uid (for Dummy testing)
234	cmp [eax+EVENT.magic], 'EVNT'	234	cmp [eax+EVENT.magic], 'EVNT'
235	jne @f	235	jne @f
236	cmp [eax+EVENT.id], ebx	236	cmp [eax+EVENT.id], ebx
237	je .ret	237	je .ret
238	;--------------------------------------	238	;--------------------------------------
239	align 4	239	align 4
240	@@:	240	@@:
241	pop eax	241	pop eax
242	xor eax, eax	242	xor eax, eax
243	;--------------------------------------	243	;--------------------------------------
244	align 4	244	align 4
245	.ret:	245	.ret:
246	ret	246	ret
247	;-----------------------------------------------------------------------------	247	;-----------------------------------------------------------------------------
248	align 4	248	align 4
249	Wait_events:	249	Wait_events:
250	or ebx, -1; infinite timeout	250	or ebx, -1; infinite timeout
251	;--------------------------------------	251	;--------------------------------------
252	align 4	252	align 4
253	Wait_events_ex:	253	Wait_events_ex:
254	;info:	254	;info:
255	; Waiting for an "abstract" event by moving the slot to the 5th position.	255	; Waiting for an "abstract" event by moving the slot to the 5th position.
256	; Abstractness lies in the fact, that the fact of an event is determined by the APPDATA.wait_test function,	256	; Abstractness lies in the fact, that the fact of an event is determined by the APPDATA.wait_test function,
257	; which is set by the client and can be actually anything.	257	; which is set by the client and can be actually anything.
258	; This allows the shed to reliably determine the fact of the event, and not make "idle" switches,	258	; This allows the shed to reliably determine the fact of the event, and not make "idle" switches,
259	; intended for showdowns like "friend / foe" within the problem.	259	; intended for showdowns like "friend / foe" within the problem.
260	;param:	260	;param:
261	; edx - wait_test, client testing function (code address)	261	; edx - wait_test, client testing function (code address)
262	; ecx - wait_param, additional parameter, possibly needed for [wait_test]	262	; ecx - wait_param, additional parameter, possibly needed for [wait_test]
263	; ebx - wait_timeout	263	; ebx - wait_timeout
264	;retval:	264	;retval:
265	; eax - call result [wait_test] (=0 => timeout)	265	; eax - call result [wait_test] (=0 => timeout)
266	;scratched: esi	266	;scratched: esi
267	mov esi, [current_slot]	267	mov esi, [current_slot]
268	mov [esi+APPDATA.wait_param], ecx	268	mov [esi+APPDATA.wait_param], ecx
269	pushad	269	pushad
270	mov ebx, esi ;now this is a question, what where to put..........	270	mov ebx, esi ;now this is a question, what where to put..........
271	pushfd ; this is a consequence of the general concept: let the test function have	271	pushfd ; this is a consequence of the general concept: let the test function have
272	cli ; the right to hope to disable interrupts, as when called from shed	272	cli ; the right to hope to disable interrupts, as when called from shed
273	call edx	273	call edx
274	popfd	274	popfd
275	mov [esp+28], eax	275	mov [esp+28], eax
276	popad	276	popad
277	or eax, eax	277	or eax, eax
278	jnz @f ;RET	278	jnz @f ;RET
279	mov [esi+APPDATA.wait_test], edx	279	mov [esi+APPDATA.wait_test], edx
280	mov [esi+APPDATA.wait_timeout], ebx	280	mov [esi+APPDATA.wait_timeout], ebx
281	mov eax, [timer_ticks]	281	mov eax, [timer_ticks]
282	mov [esi+APPDATA.wait_begin], eax	282	mov [esi+APPDATA.wait_begin], eax
283	mov eax, [TASK_BASE]	283	mov eax, [TASK_BASE]
284	mov [eax+TASKDATA.state], 5	284	mov [eax+TASKDATA.state], 5
285	call change_task	285	call change_task
286	mov eax, [esi+APPDATA.wait_param]	286	mov eax, [esi+APPDATA.wait_param]
287	;--------------------------------------	287	;--------------------------------------
288	align 4	288	align 4
289	@@:	289	@@:
290	ret	290	ret
291	;-----------------------------------------------------------------------------	291	;-----------------------------------------------------------------------------
292	align 4	292	align 4
293	wait_event: ;; EXPORT use	293	wait_event: ;; EXPORT use
294	;info:	294	;info:
295	; Waiting for the EVENT_SIGNALED flag in a very specific Event	295	; Waiting for the EVENT_SIGNALED flag in a very specific Event
296	; (set, presumably, via raise_event)	296	; (set, presumably, via raise_event)
297	; When the MANUAL_RESET flag is active, nothing else	297	; When the MANUAL_RESET flag is active, nothing else
298	; Otherwise: the flags EVENT_SIGNALED and EVENT_WATCHED for the received event are cleared,	298	; Otherwise: the flags EVENT_SIGNALED and EVENT_WATCHED for the received event are cleared,
299	; and, if MANUAL_DESTROY is active, it moves to the ObjList list of the current slot,	299	; and, if MANUAL_DESTROY is active, it moves to the ObjList list of the current slot,
300	; and if not active, it is destroyed normally (destroy_event.internal)	300	; and if not active, it is destroyed normally (destroy_event.internal)
301	;param:	301	;param:
302	; eax - event	302	; eax - event
303	; ebx - uid (for Dummy testing)	303	; ebx - uid (for Dummy testing)
304	;scratched: ecx,edx,esi	304	;scratched: ecx,edx,esi
305	call DummyTest	305	call DummyTest
306	mov ecx, eax ; wait_param	306	mov ecx, eax ; wait_param
307	mov edx, get_event_alone ; wait_test	307	mov edx, get_event_alone ; wait_test
308	call Wait_events ; timeout ignored	308	call Wait_events ; timeout ignored
309	jmp wait_finish	309	jmp wait_finish
310	;-----------------------------------------------------------------------------	310	;-----------------------------------------------------------------------------
311	align 4	311	align 4
312	wait_event_timeout:	312	wait_event_timeout:
313	;param:	313	;param:
314	; eax - event	314	; eax - event
315	; ebx - uid (for Dummy testing)	315	; ebx - uid (for Dummy testing)
316	; ecx - timeout in timer ticks	316	; ecx - timeout in timer ticks
317	;retval:	317	;retval:
318	; eax - EVENT handle or 0 if timeout	318	; eax - EVENT handle or 0 if timeout
319	call DummyTest	319	call DummyTest
320	mov ebx, ecx	320	mov ebx, ecx
321	mov ecx, eax ; wait_param	321	mov ecx, eax ; wait_param
322	mov edx, get_event_alone ; wait_test	322	mov edx, get_event_alone ; wait_test
323	call Wait_events_ex	323	call Wait_events_ex
324	test eax, eax	324	test eax, eax
325	jnz wait_finish	325	jnz wait_finish
326	ret	326	ret
327	;-----------------------------------------------------------------------------	327	;-----------------------------------------------------------------------------
328	align 4	328	align 4
329	get_event_ex: ;; f68:14	329	get_event_ex: ;; f68:14
330	;info:	330	;info:
331	; Waiting for any event in the EventList of the current slot	331	; Waiting for any event in the EventList of the current slot
332	; Code event data - copied to application memory (indirectly by edi)	332	; Code event data - copied to application memory (indirectly by edi)
333	; When the MANUAL_RESET flag is active, nothing else	333	; When the MANUAL_RESET flag is active, nothing else
334	; Otherwise: the flags EVENT_SIGNALED and EVENT_WATCHED for the received event are cleared,	334	; Otherwise: the flags EVENT_SIGNALED and EVENT_WATCHED for the received event are cleared,
335	; and, if MANUAL_DESTROY is active, it moves to the ObjList list of the current slot,	335	; and, if MANUAL_DESTROY is active, it moves to the ObjList list of the current slot,
336	; and if not active, it is destroyed normally (destroy_event.internal)	336	; and if not active, it is destroyed normally (destroy_event.internal)
337	;param:	337	;param:
338	; edi - address in the application code to copy data from EVENT.code	338	; edi - address in the application code to copy data from EVENT.code
339	;retval:	339	;retval:
340	; eax - EVENT itself (we will call it a handle)	340	; eax - EVENT itself (we will call it a handle)
341	;scratched: ebx,ecx,edx,esi,edi	341	;scratched: ebx,ecx,edx,esi,edi
342	mov edx, get_event_queue ; wait_test	342	mov edx, get_event_queue ; wait_test
343	call Wait_events ; timeout ignored	343	call Wait_events ; timeout ignored
344	lea esi, [eax+EVENT.code]	344	lea esi, [eax+EVENT.code]
345	mov ecx, (sizeof.EVENT-EVENT.code)/4	345	mov ecx, (sizeof.EVENT-EVENT.code)/4
346	cld	346	cld
347	rep movsd	347	rep movsd
348	mov byte[edi-(sizeof.EVENT-EVENT.code)+2], cl;clear priority field	348	mov byte[edi-(sizeof.EVENT-EVENT.code)+2], cl;clear priority field
349	;--------------------------------------	349	;--------------------------------------
350	align 4	350	align 4
351	wait_finish:	351	wait_finish:
352	test byte[eax+EVENT.state+3], MANUAL_RESET shr 24	352	test byte[eax+EVENT.state+3], MANUAL_RESET shr 24
353	jnz get_event_queue.ret ; RET	353	jnz get_event_queue.ret ; RET
354	and byte[eax+EVENT.state+3], not((EVENT_SIGNALED+EVENT_WATCHED)shr 24)	354	and byte[eax+EVENT.state+3], not((EVENT_SIGNALED+EVENT_WATCHED)shr 24)
355	test byte[eax+EVENT.state+3], MANUAL_DESTROY shr 24	355	test byte[eax+EVENT.state+3], MANUAL_DESTROY shr 24
356	jz destroy_event.internal	356	jz destroy_event.internal
357	mov ebx, [current_slot]	357	mov ebx, [current_slot]
358	add ebx, APP_OBJ_OFFSET	358	add ebx, APP_OBJ_OFFSET
359	pushfd	359	pushfd
360	cli	360	cli
361	jmp RemoveEventTo	361	jmp RemoveEventTo
362	;-----------------------------------------------------------------------------	362	;-----------------------------------------------------------------------------
363	align 4	363	align 4
364	destroy_event: ;; EXPORT use	364	destroy_event: ;; EXPORT use
365	;info:	365	;info:
366	; Move EVENT to the FreeEvents list, clear the magic, destroy, pid, id fields	366	; Move EVENT to the FreeEvents list, clear the magic, destroy, pid, id fields
367	;param:	367	;param:
368	; eax - event	368	; eax - event
369	; ebx - uid (for Dummy testing)	369	; ebx - uid (for Dummy testing)
370	;retval:	370	;retval:
371	; eax - address of EVENT object (=0 => fail)	371	; eax - address of EVENT object (=0 => fail)
372	;scratched: ebx,ecx	372	;scratched: ebx,ecx
373	call DummyTest ; not returned for fail !!!	373	call DummyTest ; not returned for fail !!!
374	;--------------------------------------	374	;--------------------------------------
375	align 4	375	align 4
376	.internal:	376	.internal:
377	xor ecx, ecx ; clear common header	377	xor ecx, ecx ; clear common header
378	pushfd	378	pushfd
379	cli	379	cli
380	mov [eax+EVENT.magic], ecx	380	mov [eax+EVENT.magic], ecx
381	mov [eax+EVENT.destroy], ecx	381	mov [eax+EVENT.destroy], ecx
382	mov [eax+EVENT.pid], ecx	382	mov [eax+EVENT.pid], ecx
383	mov [eax+EVENT.id], ecx	383	mov [eax+EVENT.id], ecx
384	mov ebx, FreeEvents	384	mov ebx, FreeEvents
385	jmp RemoveEventTo	385	jmp RemoveEventTo
386	;-----------------------------------------------------------------------------	386	;-----------------------------------------------------------------------------
387	align 4	387	align 4
388	get_event_queue:	388	get_event_queue:
389	;info:	389	;info:
390	; client testing function for get_event_ex	390	; client testing function for get_event_ex
391	;warning:	391	;warning:
392	; -don't use [TASK_BASE],[current_slot],[CURRENT_TASK] - it is not for your slot	392	; -don't use [TASK_BASE],[current_slot],[current_slot_idx] - it is not for your slot
393	; -may be assumed, that interrupt are disabled	393	; -may be assumed, that interrupt are disabled
394	; -it is not restriction for scratched registers	394	; -it is not restriction for scratched registers
395	;param:	395	;param:
396	; ebx - APPDATA address of testing slot	396	; ebx - APPDATA address of testing slot
397	;retval:	397	;retval:
398	; eax - address of EVENT object (=0 => fail)	398	; eax - address of EVENT object (=0 => fail)
399	add ebx, APP_EV_OFFSET	399	add ebx, APP_EV_OFFSET
400	mov eax, [ebx+APPOBJ.bk] ; we choose from the end, according to the FIFO principle	400	mov eax, [ebx+APPOBJ.bk] ; we choose from the end, according to the FIFO principle
401	cmp eax, ebx ; empty ???	401	cmp eax, ebx ; empty ???
402	je get_event_alone.ret0	402	je get_event_alone.ret0
403	;--------------------------------------	403	;--------------------------------------
404	align 4	404	align 4
405	.ret:	405	.ret:
406	ret	406	ret
407	;-----------------------------------------------------------------------------	407	;-----------------------------------------------------------------------------
408	align 4	408	align 4
409	get_event_alone:	409	get_event_alone:
410	;info:	410	;info:
411	; client testing function for wait_event	411	; client testing function for wait_event
412	;warning:	412	;warning:
413	; -don't use [TASK_BASE],[current_slot],[CURRENT_TASK] - it is not for your slot	413	; -don't use [TASK_BASE],[current_slot],[current_slot_idx] - it is not for your slot
414	; -may be assumed, that interrupt are disabled	414	; -may be assumed, that interrupt are disabled
415	; -it is not restriction for scratched registers	415	; -it is not restriction for scratched registers
416	;param:	416	;param:
417	; ebx - APPDATA address of testing slot	417	; ebx - APPDATA address of testing slot
418	;retval:	418	;retval:
419	; eax - address of EVENT object (=0 => fail)	419	; eax - address of EVENT object (=0 => fail)
420	mov eax, [ebx+APPDATA.wait_param]	420	mov eax, [ebx+APPDATA.wait_param]
421	test byte[eax+EVENT.state+3], EVENT_SIGNALED shr 24	421	test byte[eax+EVENT.state+3], EVENT_SIGNALED shr 24
422	jnz .ret	422	jnz .ret
423	or byte[eax+EVENT.state+3], EVENT_WATCHED shr 24	423	or byte[eax+EVENT.state+3], EVENT_WATCHED shr 24
424	;--------------------------------------	424	;--------------------------------------
425	align 4	425	align 4
426	.ret0:	426	.ret0:
427	xor eax, eax; NO event!!!	427	xor eax, eax; NO event!!!
428	;--------------------------------------	428	;--------------------------------------
429	align 4	429	align 4
430	.ret:	430	.ret:
431	ret	431	ret
432	;-----------------------------------------------------------------------------	432	;-----------------------------------------------------------------------------
433	align 4	433	align 4
434	sys_sendwindowmsg: ;; f72	434	sys_sendwindowmsg: ;; f72
435	dec ebx	435	dec ebx
436	jnz .ret ;subfunction==1 ?	436	jnz .ret ;subfunction==1 ?
437	pushfd	437	pushfd
438	cli	438	cli
439	sub ecx, 2	439	sub ecx, 2
440	je .sendkey	440	je .sendkey
441	dec ecx	441	dec ecx
442	jnz .retf	442	jnz .retf
443	;--------------------------------------	443	;--------------------------------------
444	align 4	444	align 4
445	.sendbtn:	445	.sendbtn:
446	cmp byte[BTN_COUNT], 1	446	cmp byte[BTN_COUNT], 1
447	jae .result ;overflow	447	jae .result ;overflow
448	inc byte[BTN_COUNT]	448	inc byte[BTN_COUNT]
449	shl edx, 8	449	shl edx, 8
450	mov [BTN_BUFF], edx	450	mov [BTN_BUFF], edx
451	jmp .result	451	jmp .result
452	;--------------------------------------	452	;--------------------------------------
453	align 4	453	align 4
454	.sendkey:	454	.sendkey:
455	movzx eax, byte[KEY_COUNT]	455	movzx eax, byte[KEY_COUNT]
456	cmp al, 120	456	cmp al, 120
457	jae .result ;overflow	457	jae .result ;overflow
458	inc byte[KEY_COUNT]	458	inc byte[KEY_COUNT]
459	mov [KEY_BUFF+eax], dl	459	mov [KEY_BUFF+eax], dl
460	; store empty scancode	460	; store empty scancode
461	add eax, 120+2	461	add eax, 120+2
462	mov [KEY_BUFF+eax], byte 0	462	mov [KEY_BUFF+eax], byte 0
463	sub eax, 120+2	463	sub eax, 120+2
464	;--------------------------------------	464	;--------------------------------------
465	align 4	465	align 4
466	.result:	466	.result:
467	setae byte[esp+32+4] ;we consider that initially was: dword[esp+32+4]==72	467	setae byte[esp+32+4] ;we consider that initially was: dword[esp+32+4]==72
468	;--------------------------------------	468	;--------------------------------------
469	align 4	469	align 4
470	.retf:	470	.retf:
471	popfd	471	popfd
472	;--------------------------------------	472	;--------------------------------------
473	align 4	473	align 4
474	.ret:	474	.ret:
475	ret	475	ret
476	;-----------------------------------------------------------------------------	476	;-----------------------------------------------------------------------------
477	align 4	477	align 4
478	sys_getevent: ;; f11	478	sys_getevent: ;; f11
479	mov ebx, [current_slot] ;now this is a question, what where to put......	479	mov ebx, [current_slot] ;now this is a question, what where to put......
480	pushfd ; this is a consequence of the general concept: let the test function have	480	pushfd ; this is a consequence of the general concept: let the test function have
481	cli ; the right to hope to disable interrupts, as when called from shed	481	cli ; the right to hope to disable interrupts, as when called from shed
482	call get_event_for_app	482	call get_event_for_app
483	popfd	483	popfd
484	mov [esp+32], eax	484	mov [esp+32], eax
485	ret	485	ret
486	;-----------------------------------------------------------------------------	486	;-----------------------------------------------------------------------------
487	align 4	487	align 4
488	sys_waitforevent: ;; f10	488	sys_waitforevent: ;; f10
489	or ebx, -1; infinite timeout	489	or ebx, -1; infinite timeout
490	;--------------------------------------	490	;--------------------------------------
491	align 4	491	align 4
492	sys_wait_event_timeout: ;; f23	492	sys_wait_event_timeout: ;; f23
493	call unprotect_from_terminate	493	call unprotect_from_terminate
494	mov edx, get_event_for_app; wait_test	494	mov edx, get_event_for_app; wait_test
495	call Wait_events_ex ; ebx - timeout	495	call Wait_events_ex ; ebx - timeout
496	mov [esp+32], eax	496	mov [esp+32], eax
497	call protect_from_terminate	497	call protect_from_terminate
498	ret	498	ret
499	;-----------------------------------------------------------------------------	499	;-----------------------------------------------------------------------------
500	align 4	500	align 4

Subversion Repositories Kolibri OS

(root)/kernel/trunk/gui/event.inc – Rev 8867 → 8869