align 4
init_events:
stdcall kernel_alloc, 512*EVENT_SIZE
mov [events], eax
xor eax, eax
mov [event_uid], eax
not eax
mov edi, event_map
mov [event_start], edi
mov ecx, 64/4
cld
rep stosd
mov [event_end], edi
ret
align 4
proc alloc_event
pushfd
cli
mov ebx, [event_start]
mov ecx, [event_end]
.l1:
bsf eax,[ebx]
jnz .found
add ebx,4
cmp ebx, ecx
jb .l1
popfd
xor eax,eax
ret
.found:
btr [ebx], eax
mov [event_start],ebx
inc [event_uid]
sub ebx, event_map
lea eax,[eax+ebx*8]
lea ebx, [eax+eax*4]
shl eax,5
lea eax,[eax+ebx*4] ;eax*=52 (EVENT_SIZE)
add eax, [events]
mov ebx, [event_uid]
popfd
ret
endp
align 4
free_event:
sub eax, [events]
mov ecx, EVENT_SIZE
mov ebx, event_map
cdq
div ecx
pushfd
cli
bts [ebx], eax
shr eax, 3
and eax, not 3
add eax, ebx
cmp [event_start], eax
ja @f
popfd
ret
@@:
mov [event_start], eax
popfd
ret
EVENT_WATCHED equ 0x10000000
EVENT_SIGNALED equ 0x20000000
MANUAL_RESET equ 0x40000000
MANUAL_DESTROY equ 0x80000000
; param
; eax= event data
; ebx= flags
;
; retval
; eax= event
; edx= id
create_event:
.flags equ esp+4
.data equ esp
push ebx
push eax
call alloc_event
test eax, eax
jz .fail
mov [eax+APPOBJ.magic], 'EVNT'
mov [eax+APPOBJ.destroy], destroy_event.internal
mov [eax+EVENT.id], ebx
mov ebx, [CURRENT_TASK]
shl ebx, 5
mov ebx, [CURRENT_TASK+ebx+4]
mov [eax+APPOBJ.pid], ebx
mov edx, [.flags]
mov [eax+EVENT.state], edx
mov esi, [.data]
test esi, esi
jz @F
lea edi, [eax+EVENT.code]
mov ecx, 6
cld
rep movsd
@@:
mov ecx, [current_slot]
add ecx, APP_OBJ_OFFSET
pushfd
cli
mov edx, [ecx+APPOBJ.fd]
mov [eax+APPOBJ.fd], edx
mov [eax+APPOBJ.bk], ecx
mov [ecx+APPOBJ.fd], eax
mov [edx+APPOBJ.bk], eax
popfd
mov edx, [eax+EVENT.id]
.fail:
add esp, 8
ret
restore .flags
restore .data
; param
; eax= event
; ebx= id
destroy_event:
cmp [eax+APPOBJ.magic], 'EVNT'
jne .fail
cmp [eax+EVENT.id], ebx
jne .fail
.internal:
mov ebx, [eax+APPOBJ.fd]
mov ecx, [eax+APPOBJ.bk]
mov [ebx+APPOBJ.bk], ecx
mov [ecx+APPOBJ.fd], ebx
.force:
xor edx, edx ;clear common header
mov [eax], edx
mov [eax+4], edx
mov [eax+8], edx
mov [eax+12], edx
mov [eax+16], edx
call free_event ;release object memory
.fail:
ret
align 4
proc send_event stdcall pid:dword, event:dword
locals
slot dd ?
endl
mov eax, [pid]
call pid_to_slot
test eax, eax
jz .fail
shl eax, 8
cmp [SLOT_BASE+eax+APPDATA.ev_count], 32
ja .fail
mov [slot], eax
call alloc_event
test eax, eax
jz .fail
lea edi, [eax+EVENT.code]
mov ecx, 6
mov esi, [event]
cld
rep movsd
mov ecx, [slot]
add ecx, SLOT_BASE+APP_EV_OFFSET
mov [eax+APPOBJ.magic], 'EVNT'
mov [eax+APPOBJ.destroy], destroy_event
mov ebx, [pid]
mov [eax+APPOBJ.pid], ebx
mov [eax+EVENT.state], EVENT_SIGNALED
pushfd
cli ;insert event into
mov edx, [ecx+APPOBJ.fd] ;events list
mov [eax+APPOBJ.fd], edx ;and set events flag
mov [eax+APPOBJ.bk], ecx
mov [ecx+APPOBJ.fd], eax
mov [edx+APPOBJ.bk], eax
inc [ecx+APPDATA.ev_count-APP_EV_OFFSET]
or [ecx+APPDATA.event_mask-APP_EV_OFFSET], EVENT_EXTENDED
popfd
.fail:
ret
endp
; timeout ignored
align 4
proc get_event_ex stdcall, p_ev:dword, timeout:dword
.wait:
mov edx,[current_slot]
; cmp [SLOT_BASE+edx+APPDATA.ev_count], 0
; je .switch
add edx, APP_EV_OFFSET
mov eax, [edx+APPOBJ.fd]
cmp eax, edx
je .switch
lea esi, [eax+EVENT.code]
mov edi, [p_ev] ;copy event data
mov ecx, 6
cld
rep movsd
and dword [edi-24], 0xFF00FFFF ;clear priority field
;
test [eax+EVENT.state], MANUAL_RESET
jnz .done
pushfd
cli ;remove event from events
mov ebx, [eax+APPOBJ.fd] ;list (reset event)
mov ecx, [eax+APPOBJ.bk] ;and clear events flag
mov [ebx+APPOBJ.bk], ecx ;if no active events
mov [ecx+APPOBJ.fd], ebx
and [eax+EVENT.state], not (EVENT_SIGNALED+EVENT_WATCHED)
dec [edx+APPDATA.ev_count-APP_EV_OFFSET]
jnz @F
and [edx+APPDATA.event_mask-APP_EV_OFFSET], not EVENT_EXTENDED
@@:
popfd
test [eax+EVENT.state], MANUAL_DESTROY
jz .destroy
add edx, (APP_OBJ_OFFSET-APP_EV_OFFSET)
pushfd
cli
mov ebx, [edx+APPOBJ.fd] ;insert event into
mov [eax+APPOBJ.fd], ebx ;objects list
mov [eax+APPOBJ.bk], edx
mov [edx+APPOBJ.fd], eax
mov [ebx+APPOBJ.bk], eax
popfd
.done:
ret
.destroy:
call destroy_event.force
ret
.switch:
mov eax, [TASK_BASE]
mov [eax+TASKDATA.state], byte 5
call change_task
jmp .wait
endp
; param
; eax= event
; ebx= id
align 4
wait_event:
.event equ esp
push eax
.wait:
cmp [eax+APPOBJ.magic], 'EVNT'
jne .done
cmp [eax+EVENT.id], ebx
jne .done
test [eax+EVENT.state], EVENT_SIGNALED
jz .switch
test [eax+EVENT.state], MANUAL_RESET
jnz .done
mov edx,[current_slot]
pushfd
cli ;remove event from events
mov ebx, [eax+APPOBJ.fd] ;list (reset event)
mov ecx, [eax+APPOBJ.bk] ;and clear events flag
mov [ebx+APPOBJ.bk], ecx ;if no active events
mov [ecx+APPOBJ.fd], ebx
dec [edx+APPDATA.ev_count]
jnz @F
and [edx+APPDATA.event_mask], not EVENT_EXTENDED
@@:
and [eax+EVENT.state], not (EVENT_SIGNALED+EVENT_WATCHED)
popfd
test [eax+EVENT.state], MANUAL_DESTROY
jz .destroy
add edx, APP_OBJ_OFFSET
pushfd
cli
mov ecx, [edx+APPOBJ.fd] ;insert event into
mov [eax+APPOBJ.fd], ecx ;objects list
mov [eax+APPOBJ.bk], edx
mov [edx+APPOBJ.fd], eax
mov [ecx+APPOBJ.bk], eax
popfd
.done:
add esp, 4
ret
.destroy:
call destroy_event.force
add esp, 4
ret
.switch:
or [eax+EVENT.state], EVENT_WATCHED
mov eax, [TASK_BASE]
mov [eax+TASKDATA.state], byte 5
call change_task
mov eax, [.event]
jmp .wait
restore .event
; param
; eax= event
; ebx= id
; ecx= flags
; edx= event data
raise_event:
.event equ esp
push eax
cmp [eax+APPOBJ.magic], 'EVNT'
jne .fail
cmp [eax+EVENT.id], ebx
jne .fail
mov eax, [eax+APPOBJ.pid]
call pid_to_slot
test eax, eax
jz .fail
mov esi, edx
test esi, esi
mov edx, [.event]
jz @F
push ecx
lea edi, [edx+EVENT.code]
mov ecx, 6
cld
rep movsd
pop ecx
@@:
test [edx+EVENT.state], EVENT_SIGNALED
jnz .done
test ecx, EVENT_WATCHED
jz @F
test [edx+EVENT.state], EVENT_WATCHED
jz .done
@@:
shl eax, 8
add eax, SLOT_BASE+APP_EV_OFFSET
pushfd
cli
mov ebx, [edx+APPOBJ.fd]
mov ecx, [edx+APPOBJ.bk]
mov [ebx+APPOBJ.bk], ecx
mov [ecx+APPOBJ.fd], ebx
mov ecx, [eax+APPOBJ.fd]
mov [edx+APPOBJ.fd], ecx
mov [edx+APPOBJ.bk], eax
mov [eax+APPOBJ.fd], edx
mov [ecx+APPOBJ.bk], edx
or [edx+EVENT.state], EVENT_SIGNALED
inc [eax+APPDATA.ev_count-APP_EV_OFFSET]
or [eax+APPDATA.event_mask-APP_EV_OFFSET], EVENT_EXTENDED
popfd
.fail:
.done:
add esp, 4
ret
restore .event
; param
; eax= event
; ebx= id
align 4
clear_event:
.event equ esp
push eax
cmp [eax+APPOBJ.magic], 'EVNT'
jne .fail
cmp [eax+EVENT.id], ebx
jne .fail
mov eax, [eax+APPOBJ.pid]
call pid_to_slot
test eax, eax
jz .fail
shl eax, 8
add eax, SLOT_BASE+APP_EV_OFFSET
mov edx, [.event]
pushfd
cli ;remove event from events
mov ebx, [edx+APPOBJ.fd] ;list (reset event)
mov ecx, [edx+APPOBJ.bk] ;and clear events flag
mov [ebx+APPOBJ.bk], ecx ;if no active events
mov [ecx+APPOBJ.fd], ebx
and [edx+EVENT.state], not (EVENT_SIGNALED+EVENT_WATCHED)
dec [eax+APPDATA.ev_count-APP_EV_OFFSET]
jnz @F
and [eax+APPDATA.event_mask-APP_EV_OFFSET], not EVENT_EXTENDED
@@:
add eax, (APP_OBJ_OFFSET-APP_EV_OFFSET)
mov ecx, [eax+APPOBJ.fd] ;insert event into
mov [edx+APPOBJ.fd], ecx ;objects list
mov [edx+APPOBJ.bk], eax
mov [eax+APPOBJ.fd], edx
mov [ecx+APPOBJ.bk], edx
popfd
.fail:
.done:
add esp, 4
ret
restore .event
sys_getevent:
call get_event_for_app
mov [esp+36],eax
ret
align 4
sys_wait_event_timeout:
mov ebx,[timer_ticks]
add ebx,eax
cmp ebx,[timer_ticks]
jna .swfet2
.swfet1:
call get_event_for_app
test eax,eax
jne .eventoccur_time
call change_task
cmp ebx,[timer_ticks]
jg .swfet1
.swfet2:
xor eax,eax
.eventoccur_time:
mov [esp+36],eax
ret
align 4
sys_waitforevent:
call get_event_for_app
test eax,eax
jne eventoccur
newwait:
mov eax, [TASK_BASE]
mov [eax+TASKDATA.state], byte 5
call change_task
mov eax, [event_sched]
eventoccur:
mov [esp+36],eax
ret
get_event_for_app:
pushad
mov edi,[TASK_BASE] ; WINDOW REDRAW
test [edi+TASKDATA.event_mask],dword 1
jz no_eventoccur1
;mov edi,[TASK_BASE]
cmp [edi-twdw+WDATA.fl_redraw],byte 0
je no_eventoccur1
popad
mov eax,1
ret
no_eventoccur1:
;mov edi,[TASK_BASE] ; KEY IN BUFFER
test [edi+TASKDATA.event_mask],dword 2
jz no_eventoccur2
mov ecx, [CURRENT_TASK]
movzx edx,word [WIN_STACK+ecx*2]
mov eax, [TASK_COUNT]
cmp eax,edx
jne no_eventoccur2x
cmp [KEY_COUNT],byte 0
je no_eventoccur2x
eventoccur2:
popad
mov eax,2
ret
no_eventoccur2x:
mov eax, hotkey_buffer
@@:
cmp [eax], ecx
jz eventoccur2
add eax, 8
cmp eax, hotkey_buffer+120*8
jb @b
no_eventoccur2:
;mov edi,[TASK_BASE] ; BUTTON IN BUFFER
test [edi+TASKDATA.event_mask],dword 4
jz no_eventoccur3
cmp [BTN_COUNT],byte 0
je no_eventoccur3
mov ecx, [CURRENT_TASK]
movzx edx, word [WIN_STACK+ecx*2]
mov eax, [TASK_COUNT]
cmp eax,edx
jnz no_eventoccur3
popad
mov eax,[BTN_BUFF]
cmp eax,65535
je no_event_1
mov eax,3
ret
no_event_1:
mov [window_minimize],1
mov [BTN_COUNT],byte 0
xor eax, eax
ret
no_eventoccur3:
;mov edi,[TASK_BASE] ; mouse event
test [edi+TASKDATA.event_mask],dword 00100000b
jz no_mouse_event
mov eax,[current_slot]
test [eax+APPDATA.event_mask],dword 00100000b
jz no_mouse_event
and [eax+APPDATA.event_mask],dword 0xffffffff-00100000b
popad
mov eax,6
ret
no_mouse_event:
;mov edi,[TASK_BASE] ; DESKTOP BACKGROUND REDRAW
test [edi+TASKDATA.event_mask],dword 16
jz no_eventoccur5
cmp [REDRAW_BACKGROUND],byte 2
jnz no_eventoccur5
popad
mov eax,5
ret
no_eventoccur5:
;mov edi,[TASK_BASE] ; IPC
test [edi+TASKDATA.event_mask],dword 01000000b
jz no_ipc
mov eax,[current_slot]
test [eax+APPDATA.event_mask],dword 01000000b
jz no_ipc
and [eax+APPDATA.event_mask],dword 0xffffffff-01000000b
popad
mov eax,7
ret
no_ipc:
;mov edi,[TASK_BASE] ; STACK
test [edi+TASKDATA.event_mask],dword 10000000b
jz no_stack_event
mov eax,[current_slot]
test [eax+APPDATA.event_mask],dword 10000000b
jz no_stack_event
and [eax+APPDATA.event_mask],dword 0xffffffff-10000000b
popad
mov eax,8
ret
no_stack_event:
test byte [edi+TASKDATA.event_mask+1], 1 ; DEBUG
jz .test_IRQ
mov eax, [current_slot]
test byte [eax+APPDATA.event_mask+1], byte 1
jz .test_IRQ
and byte [eax+APPDATA.event_mask+1], not 1
popad
mov eax, 9
ret
;.test_ext:
; mov eax, [CURRENT_TASK]
; shl eax, 8
; test dword [eax+SLOT_BASE+APPDATA.event_mask], EVENT_EXTENDED
; jz .test_IRQ
; popad
; mov eax, 10
; ret
.test_IRQ:
cmp dword [edi+TASKDATA.event_mask], 0xFFFF
jbe no_events
mov esi,IRQ_SAVE ; IRQ'S AND DATA
mov ebx,0x00010000
xor ecx, ecx
irq_event_test:
mov edi,[TASK_BASE]
test [edi+TASKDATA.event_mask],ebx
jz no_irq_event
mov edi,ecx
shl edi,2
add edi,irq_owner
mov edx,[edi]
mov eax,[TASK_BASE]
mov eax,[eax+TASKDATA.pid]
cmp edx,eax
jne no_irq_event
cmp [esi],dword 0
jz no_irq_event
mov eax,ecx
add eax,16
mov [esp+28],eax
popad
ret
no_irq_event:
add esi,0x1000
shl ebx,1
inc ecx
cmp ecx,16
jb irq_event_test
no_events:
popad
xor eax, eax
ret