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kernel: pipe io bugfixes

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git-svn-id: svn://kolibrios.org@6928 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Sergey Semyonov (Serge) 2017-06-16 11:19:43 +00:00
parent 7ee30af446
commit 65af271ccd
1 changed files with 9 additions and 5 deletions
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14
kernel/trunk/posix/pipe.inc
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@ -40,8 +40,8 @@ sys_pipe2:
mov ebp, -EINVAL
jnz .fail
push ecx
push edx
push ecx
sub esp, (5-2)*4
mov ecx, sizeof.FILED
@ -102,6 +102,9 @@ sys_pipe2:
mov [edx+FILED.destroy], 0
mov [edx+FILED.file], ebp
mov eax, [eax+FILED.handle]
mov edx, [edx+FILED.handle]
mov [ecx], eax
mov [ecx+4], edx
add esp, 5*4
@ -220,14 +223,15 @@ pipe_write:
jb .write
mov ecx, esi
.write:
mov esi, [ebp+PIPE.buffer]
add esi, [ebp+PIPE.write_end]
mov esi, edi
mov edi, [ebp+PIPE.buffer]
add edi, [ebp+PIPE.write_end]
mov [esp+SYSCALL_STACK._eax], ecx
add [ebp+PIPE.count], ecx
cld
rep movsb
and esi, 0xFFF
mov [ebp+PIPE.write_end], esi
and edi, 0xFFF
mov [ebp+PIPE.write_end], edi
lea ecx, [ebp+PIPE.pipe_lock]
call mutex_unlock