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  → /kernel/branches/Kolibri-acpi/core/sched.inc @ 5564

  → /kernel/branches/Kolibri-acpi/core/sched.inc @ 5565

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Regard whitespace Rev 5564 → Rev 5565

/kernel/branches/Kolibri-acpi/core/sched.inc
1,6 → 1,6
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2012. All rights reserved. ;;
;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;;
;; Copyright (C) MenuetOS 2000-2004 Ville Mikael Turjanmaa ;;
;; Distributed under terms of the GNU General Public License ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
116,8 → 116,6
Mov [tss._esp0],eax,[ebx+APPDATA.saved_esp0]
mov edx, [ebx+APPDATA.tls_base]
cmp edx, [esi+APPDATA.tls_base]
je @f
mov [tls_data_l+2], dx
shr edx, 16
126,7 → 124,7
mov dx, app_tls
mov fs, dx
@@:
; set gs selector unconditionally
Mov gs,ax,graph_data
; set CR0.TS
155,22 → 153,24
;end.
struct MUTEX_WAITER
list LHEAD
task dd ?
type dd ?
ends
RWSEM_WAITING_FOR_WRITE equ 0
RWSEM_WAITING_FOR_READ equ 1
;void __fastcall mutex_init(struct mutex *lock)
align 4
mutex_init:
mov [ecx+MUTEX.lhead.next], ecx
mov [ecx+MUTEX.lhead.prev], ecx
mov [ecx+MUTEX.wait_list.next], ecx
mov [ecx+MUTEX.wait_list.prev], ecx
mov [ecx+MUTEX.count], 1
ret
;void __fastcall mutex_lock(struct mutex *lock)
align 4
200,15 → 200,13
call change_task
jmp .forever
@@:
mov edx, [esp+MUTEX_WAITER.list.next]
mov eax, [esp+MUTEX_WAITER.list.prev]
mov eax, ecx
list_del esp
mov [eax+MUTEX_WAITER.list.next], edx
mov [edx+MUTEX_WAITER.list.prev], eax
cmp [ecx+MUTEX.lhead.next], ecx
cmp [eax+MUTEX.wait_list.next], eax
jne @F
mov [ecx+MUTEX.count], 0
mov [eax+MUTEX.count], 0
@@:
add esp, sizeof.MUTEX_WAITER
224,7 → 222,7
pushfd
cli
mov eax, [ecx+MUTEX.lhead.next]
mov eax, [ecx+MUTEX.wait_list.next]
cmp eax, ecx
mov [ecx+MUTEX.count], 1
je @F
236,8 → 234,167
ret
;void __fastcall init_rwsem(struct rw_semaphore *sem)
align 4
init_rwsem:
mov [ecx+RWSEM.wait_list.next], ecx
mov [ecx+RWSEM.wait_list.prev], ecx
mov [ecx+RWSEM.count], 0
ret
;void __fastcall down_read(struct rw_semaphore *sem)
align 4
down_read:
pushfd
cli
mov eax, [ecx+RWSEM.count]
test eax, eax
js @F
cmp ecx, [ecx+RWSEM.wait_list.next]
je .ok
@@:
sub esp, sizeof.MUTEX_WAITER
mov eax, [TASK_BASE]
mov [esp+MUTEX_WAITER.task], eax
mov [esp+MUTEX_WAITER.type], RWSEM_WAITING_FOR_READ
mov [eax+TASKDATA.state], 1
list_add_tail esp, ecx ;esp= new waiter, ecx= list head
call change_task
add esp, sizeof.MUTEX_WAITER
popfd
ret
.ok:
inc eax
mov [ecx+RWSEM.count], eax
popfd
ret
;void __fastcall down_write(struct rw_semaphore *sem)
align 4
down_write:
pushfd
cli
sub esp, sizeof.MUTEX_WAITER
mov edx, [TASK_BASE]
mov [esp+MUTEX_WAITER.task], edx
mov [esp+MUTEX_WAITER.type], RWSEM_WAITING_FOR_WRITE
mov [edx+TASKDATA.state], 1
list_add_tail esp, ecx ;esp= new waiter, ecx= list head
xor eax, eax
not eax
.forever:
test eax, [ecx+RWSEM.count]
jz @F
mov [edx+TASKDATA.state], 1
call change_task
jmp .forever
@@:
mov [ecx+RWSEM.count], eax
list_del esp
add esp, sizeof.MUTEX_WAITER
popfd
ret
;void __fastcall up_read(struct rw_semaphore *sem)
align 4
up_read:
pushfd
cli
dec [ecx+RWSEM.count]
jnz @F
mov eax, [ecx+RWSEM.wait_list.next]
cmp eax, ecx
je @F
mov eax, [eax+MUTEX_WAITER.task]
mov [eax+TASKDATA.state], 0
@@:
popfd
ret
;void __fastcall up_write(struct rw_semaphore *sem)
align 4
up_write:
pushfd
cli
mov eax, [ecx+RWSEM.wait_list.next]
mov [ecx+RWSEM.count], 0
cmp ecx, eax
je .done
mov edx, [eax+MUTEX_WAITER.type]
test edx, edx
jnz .wake
mov eax, [eax+MUTEX_WAITER.task]
mov [eax+TASKDATA.state], 0
.done:
popfd
ret
.wake:
push ebx
push esi
push edi
xor esi, esi
mov edi, ecx
.wake_list:
mov ebx, [eax+MUTEX_WAITER.list.next]
list_del eax
mov edx, [eax+MUTEX_WAITER.task]
mov [edx+TASKDATA.state], 0
inc esi
cmp edi, ebx
je .wake_done
mov ecx, [ebx+MUTEX_WAITER.type]
test ecx, ecx
jz .wake_done
mov eax, ebx
jmp .wake_list
.wake_done:
add [edi+RWSEM.count], esi
pop edi
pop esi
pop ebx
popfd
ret
purge MUTEX_WAITER
purge RWSEM_WAITING_FOR_WRITE
purge RWSEM_WAITING_FOR_READ
MAX_PRIORITY = 0 ; highest, used for kernel tasks
USER_PRIORITY = 1 ; default
IDLE_PRIORITY = 2 ; lowest, only IDLE thread goes here