221,7 → 221,8 |
|
struc MUTEX_WAITER |
{ |
.list LHEAD |
.next rd 1 |
.prev rd 1 |
.task rd 1 |
.sizeof: |
}; |
234,9 → 235,10 |
|
align 4 |
mutex_init: |
mov [ecx+MUTEX.wait.next], ecx |
mov [ecx+MUTEX.wait.prev], ecx |
lea eax, [ecx+MUTEX.next] |
mov [ecx+MUTEX.count],1 |
mov [ecx+MUTEX.next], eax |
mov [ecx+MUTEX.prev], eax |
ret |
|
|
251,10 → 253,17 |
pushfd |
cli |
|
push esi |
sub esp, MUTEX_WAITER.sizeof |
|
list_add_tail esp, ecx ;esp= new waiter, ecx= list head |
mov eax, [ecx+MUTEX.prev] |
lea esi, [ecx+MUTEX.next] |
|
mov [ecx+MUTEX.prev], esp |
mov [esp+MUTEX_WAITER.next], esi |
mov [esp+MUTEX_WAITER.prev], eax |
mov [eax], esp |
|
mov edx, [TASK_BASE] |
mov [esp+MUTEX_WAITER.task], edx |
|
269,12 → 278,12 |
call change_task |
jmp .forever |
@@: |
mov edx, [esp+MUTEX_WAITER.list.next] |
mov eax, [esp+MUTEX_WAITER.list.prev] |
mov edx, [esp+MUTEX_WAITER.next] |
mov eax, [esp+MUTEX_WAITER.prev] |
|
mov [eax+MUTEX_WAITER.list.next], edx |
mov [edx+MUTEX_WAITER.list.prev], eax |
cmp [ecx+MUTEX.wait.next], ecx |
mov [eax+MUTEX_WAITER.next], edx |
cmp [ecx+MUTEX.next], esi |
mov [edx+MUTEX_WAITER.prev], eax |
jne @F |
|
mov [ecx+MUTEX.count], 0 |
281,6 → 290,7 |
@@: |
add esp, MUTEX_WAITER.sizeof |
|
pop esi |
popfd |
.done: |
ret |
293,8 → 303,9 |
pushfd |
cli |
|
mov eax, [ecx+MUTEX.wait.next] |
cmp eax, ecx |
lea edx, [ecx+MUTEX.next] |
mov eax, [edx] |
cmp eax, edx |
mov [ecx+MUTEX.count], 1 |
je @F |
|