Subversion Repositories Kolibri OS

Rev

Rev 6079 | Rev 6926 | Go to most recent revision | Show entire file | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 6079 Rev 6089
Line 5... Line 5...
5 
;;                                                              ;;
 5 
;;                                                              ;;
6 
;; Synhronization for MenuetOS.                                 ;;
 6 
;; Synhronization for MenuetOS.                                 ;;
7 
;; Author: Halyavin Andrey, halyavin@land.ru                    ;;
 7 
;; Author: Halyavin Andrey, halyavin@land.ru                    ;;
8 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 8 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
Line 9... Line 9...
9 
 
 9 
 
Line 10... Line 10...
10 
$Revision: 6079 $
 10 
$Revision: 6089 $
11 
 
 11 
 
12 
align 4
 12 
align 4
13 
;struct futex*  __fastcall create_futex(int *ptr)
 13 
;struct futex*  __fastcall create_futex(int *ptr)
Line 130... Line 130...
130 
.futex_wait:
 130 
.futex_wait:
131 
        test    esi, esi
 131 
        test    esi, esi
132 
        jnz     .futex_wait_timeout
 132 
        jnz     .futex_wait_timeout
133 
        mov     ecx, [ebp+FUTEX.pointer]
 133 
        mov     ecx, [ebp+FUTEX.pointer]
134 
        mov     eax, edx
 134 
        mov     eax, edx
135 
        lock cmpxchg [ecx], edx         ;wait until old_value == new_value
 135 
        lock cmpxchg [ecx], edx
136 
        jz      .wait_slow
 136 
        je      .wait_slow
Line 137... Line 137...
137 
 
 137 
 
138 
        mov     [esp+SYSCALL_STACK._eax], 0
 138 
        mov     [esp+SYSCALL_STACK._eax], -2
Line 139... Line 139...
139 
        ret
 139 
        ret
140 
 
 140 
 
141 
.wait_slow:
 141 
.wait_slow:
Line 146... Line 146...
146 
        mov     ebx, [TASK_BASE]
 146 
        mov     ebx, [TASK_BASE]
147 
        mov     [esp+MUTEX_WAITER.task], ebx
 147 
        mov     [esp+MUTEX_WAITER.task], ebx
148 
        lea     esi, [ebp+FUTEX.wait_list]
 148 
        lea     esi, [ebp+FUTEX.wait_list]
Line 149... Line 149...
149 
 
 149 
 
150 
        list_add_tail esp, esi      ;esp= new waiter, esi= list head
 - 
 
- 
 
 150 
        list_add_tail esp, esi      ;esp= new waiter, esi= list head
151 
 
 151 
        mov     eax, edx
152 
.again:
 152 
.again:
153 
        mov     [ebx+TASKDATA.state], 1
 153 
        mov     [ebx+TASKDATA.state], 1
Line 154... Line 154...
154 
        call    change_task
 154 
        call    change_task
155 
 
 155 
 
Line 156... Line 156...
156 
        lock cmpxchg [ecx], edx
 156 
        lock cmpxchg [ecx], edx
157 
        jz      .again
 157 
        je      .again
Line 158... Line 158...
158 
 
 158 
 
Line 172... Line 172...
172 
 
 172 
 
173 
.futex_wait_timeout:
 173 
.futex_wait_timeout:
174 
        mov     ecx, [ebp+FUTEX.pointer]
 174 
        mov     ecx, [ebp+FUTEX.pointer]
175 
        mov     eax, edx
 175 
        mov     eax, edx
176 
        lock cmpxchg [ecx], edx         ;wait until old_value == new_value
 176 
        lock cmpxchg [ecx], edx         ;wait until old_value == new_value
Line 177... Line 177...
177 
        jz      .wait_slow_timeout
 177 
        je      .wait_slow_timeout
178 
 
 178 
 
Line 179... Line 179...
179 
        mov     [esp+SYSCALL_STACK._eax], 0
 179 
        mov     [esp+SYSCALL_STACK._eax], -2
180 
        ret
 180 
        ret
181 
 
 181 
 
Line 208... Line 208...
208 
        call    change_task
 208 
        call    change_task
209 
        mov     eax, [ebx+APPDATA.wait_param]
 209 
        mov     eax, [ebx+APPDATA.wait_param]
210 
        test    eax, eax
 210 
        test    eax, eax
211 
        jz      .timeout
 211 
        jz      .timeout
Line -... Line 212...
- 
 
 212 
 
212 
 
 213 
        mov     eax, edx
213 
        lock cmpxchg [ecx], edx
 214 
        lock cmpxchg [ecx], edx
214 
        jz      .again_timeout
 215 
        jz      .again_timeout
215 
@@:
 216 
@@:
216 
        list_del esp
 217 
        list_del esp