forked from KolibriOS/kolibrios
shmem_open()
git-svn-id: svn://kolibrios.org@940 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Sergey Semyonov (Serge)
parent
13ea3979bb
commit
4ac08fc6e9
@ -362,6 +362,8 @@ PG_NOCACHE equ 0x018
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PG_LARGE equ 0x080
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PG_GLOBAL equ 0x100
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PG_SHARED equ 0x200
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;;;;;;;;;;;boot time variables
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;BOOT_BPP equ 0x9000 ;byte bits per pixel
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@ -475,6 +477,40 @@ virtual at 0
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end virtual
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struc SHMEM
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{
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.bk dd ?
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.fd dd ? ;+4
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.base dd ? ;+8
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.size dd ? ;+12
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.access dd ? ;+16
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.refcount dd ? ;+20
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.name rb 32 ;+24
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.sizeof:
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}
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struc SHMAP
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{
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.magic dd ? ; SMEM
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.destroy dd ? ;internal destructor
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.fd dd ? ;next object in list
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.bk dd ? ;prev object in list
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.pid dd ? ;owner id
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.base dd ? ;mapped base
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.parent dd ? ;SHMEM
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.sizeof:
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}
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virtual at 0
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SHMEM SHMEM
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end virtual
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virtual at 0
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SHMAP SHMAP
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end virtual
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struc HEAP_DATA
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{
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.mutex rd 1
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@ -704,7 +704,7 @@ l_0:
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and eax, 0xFFFFF000
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cmp eax, ecx ;alloc_size
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jb m_next
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jz @f
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jz @f
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lea edx, [esi+ecx]
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sub eax, ecx
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@ -786,6 +786,8 @@ proc user_free stdcall, base:dword
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xchg eax, [page_tabs+esi*4]
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test al, 1
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jz @F
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test eax, PG_SHARED
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jnz @F
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call free_page
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mov eax, esi
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shl eax, 12
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@ -1074,9 +1076,9 @@ user_realloc:
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xor eax, eax
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xchg eax, [page_tabs+ecx*4]
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mov [page_tabs+esi*4], eax
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mov eax, ecx
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shl eax, 12
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invlpg [eax]
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mov eax, ecx
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shl eax, 12
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invlpg [eax]
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inc esi
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inc ecx
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dec ebx
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@ -1133,3 +1135,253 @@ proc alloc_service
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endp
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end if
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;;;;;;;;;;;;;; SHARED ;;;;;;;;;;;;;;;;;
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; param
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; eax= shm_map object
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align 4
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destroy_smap:
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pushfd
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cli
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push ebx
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mov ebx, eax
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mov eax, [eax+SHMAP.base]
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test eax, eax
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jz @F
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stdcall user_free, eax
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@@:
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mov eax, [ebx+SHMAP.parent]
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test eax, eax
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jz @F
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lock dec [eax+SHMEM.refcount]
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@@:
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mov eax, ebx
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call destroy_kernel_object
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pop ebx
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popfd
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ret
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E_NOTFOUND equ 5
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E_ACCESS equ 10
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E_NOMEM equ 30
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E_PARAM equ 33
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SHM_READ equ 0
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SHM_WRITE equ 1
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SHM_ACCESS_MASK equ 3
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SHM_OPEN equ (0 shl 2)
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SHM_OPEN_ALWAYS equ (1 shl 2)
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SHM_CREATE equ (2 shl 2)
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SHM_OPEN_MASK equ (3 shl 2)
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align 4
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proc shmem_open stdcall name:dword, size:dword, access:dword
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locals
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action dd ?
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owner_access dd ?
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mapped dd ?
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endl
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push ebx
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push esi
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push edi
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mov [mapped], 0
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mov [owner_access], 0
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pushfd ;mutex required
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cli
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mov eax, [access]
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and eax, SHM_OPEN_MASK
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mov [action], eax
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mov eax, [name]
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test eax, eax
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mov edx, E_PARAM
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jz .exit
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mov esi, [shmem_list.fd]
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align 4
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@@:
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cmp esi, shmem_list
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je .not_found
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lea edx, [esi+SHMEM.name] ; link , base, size
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stdcall strncmp, edx, eax, 32
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test eax, eax
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je .found
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mov esi, [esi+SHMEM.fd]
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jmp @B
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.not_found:
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mov eax, [action]
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cmp eax, SHM_OPEN
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mov edx, E_NOTFOUND
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je .exit
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cmp eax, SHM_CREATE
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mov edx, E_PARAM
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je .create_shm
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cmp eax, SHM_OPEN_ALWAYS
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jne .exit
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.create_shm:
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mov ecx, [size]
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test ecx, ecx
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jz .exit
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add ecx, 4095
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and ecx, -4096
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mov [size], ecx
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mov eax, SHMEM.sizeof
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call malloc
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test eax, eax
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mov esi, eax
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mov edx, E_NOMEM
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jz .exit
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stdcall kernel_alloc, [size]
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test eax, eax
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mov [mapped], eax
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mov edx, E_NOMEM
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jz .cleanup
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mov ecx, [size]
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mov edx, [access]
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and edx, SHM_ACCESS_MASK
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mov [esi+SHMEM.base], eax
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mov [esi+SHMEM.size], ecx
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mov [esi+SHMEM.access], edx
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mov [esi+SHMEM.refcount], 0
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mov [esi+SHMEM.name+28], 0
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lea eax, [esi+SHMEM.name]
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stdcall strncpy, eax, [name], 31
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mov eax, [shmem_list.fd]
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mov [esi+SHMEM.bk], shmem_list
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mov [esi+SHMEM.fd], eax
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mov [eax+SHMEM.bk], esi
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mov [shmem_list.fd], esi
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mov [action], SHM_OPEN
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mov [owner_access], SHM_WRITE
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.found:
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mov eax, [action]
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cmp eax, SHM_CREATE
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mov edx, E_ACCESS
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je .exit
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cmp eax, SHM_OPEN
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mov edx, E_PARAM
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je .create_map
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cmp eax, SHM_OPEN_ALWAYS
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jne .exit
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.create_map:
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mov eax, [access]
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and eax, SHM_ACCESS_MASK
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cmp eax, [esi+SHMEM.access]
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mov [access], eax
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mov edx, E_ACCESS
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ja .exit
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mov ebx, [CURRENT_TASK]
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shl ebx, 5
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mov ebx, [CURRENT_TASK+ebx+4]
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mov eax, SHMAP.sizeof
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call create_kernel_object
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test eax, eax
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mov edi, eax
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mov edx, E_NOMEM
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jz .exit
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mov [edi+SHMAP.magic], 'SMEM'
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mov [edi+SHMAP.destroy], destroy_smap
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mov [edi+SHMAP.base], 0
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mov [edi+SHMAP.parent], 0
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stdcall user_alloc, [esi+SHMEM.size]
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test eax, eax
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mov [mapped], eax
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mov edx, E_NOMEM
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jz .cleanup2
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lock inc [esi+SHMEM.refcount]
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mov [edi+SHMAP.base], eax
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mov [edi+SHMAP.parent], esi
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mov ecx, [esi+SHMEM.size]
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mov [size], ecx
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shr ecx, 12
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shr eax, 10
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mov esi, [esi+SHMEM.base]
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shr esi, 10
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lea edi, [page_tabs+eax]
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add esi, page_tabs
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mov edx, [access]
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or edx, [owner_access]
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shl edx, 1
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or edx, PG_USER+PG_SHARED
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@@:
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lodsd
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and eax, 0xFFFFF000
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or eax, edx
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stosd
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loop @B
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xor edx, edx
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cmp [owner_access], 0
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jne .exit
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mov edx, [size]
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.exit:
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mov eax, [mapped]
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popfd
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pop edi
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pop esi
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pop ebx
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ret
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.cleanup:
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mov eax, esi
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call free
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jmp .exit
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.cleanup2:
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mov eax, edi
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call destroy_smap
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jmp .exit
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endp
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@ -1009,51 +1009,61 @@ sysfn_meminfo:
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ret
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align 4
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new_services:
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f68call:
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dd f68.11
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dd f68.12
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dd f68.13
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dd f68.14
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dd f68.15
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dd f68.16
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dd f68.17
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dd f68.18
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dd f68.19
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dd f68.20
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dd f68.21
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dd f68.22
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align 4
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f68:
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cmp eax,4
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jle sys_sheduler
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cmp eax, 11
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jb .fail
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ja @f
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cmp eax, 22
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ja .fail
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jmp dword [f68call+eax*4-11*4]
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.11:
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call init_heap
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mov [esp+36], eax
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ret
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@@:
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cmp eax, 12
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ja @f
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.12:
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stdcall user_alloc, ebx
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mov [esp+36], eax
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ret
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@@:
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cmp eax, 13
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ja @f
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.13:
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stdcall user_free, ebx
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mov [esp+36], eax
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ret
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@@:
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cmp eax, 14
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ja @f
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.14:
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cmp ebx, OS_BASE
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jae .fail
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stdcall get_event_ex, ebx, ecx
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mov [esp+36], eax
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ret
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@@:
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cmp eax, 15
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ja @f
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.15:
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mov ecx, [current_slot]
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mov eax, [ecx+APPDATA.fpu_handler]
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mov [ecx+APPDATA.fpu_handler], ebx
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mov [esp+36], eax
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ret
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@@:
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cmp eax, 16
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ja @f
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.16:
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test ebx, ebx
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jz .fail
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cmp ebx, OS_BASE
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@ -1061,38 +1071,28 @@ new_services:
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stdcall get_service, ebx
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mov [esp+36], eax
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ret
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@@:
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cmp eax, 17
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ja @f
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.17:
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call srv_handlerEx ;ebx
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mov [esp+36], eax
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ret
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@@:
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cmp eax, 18
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ja @f
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.18:
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mov ecx, [current_slot]
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mov eax, [ecx+APPDATA.sse_handler]
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mov [ecx+APPDATA.sse_handler], ebx
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mov [esp+36], eax
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ret
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@@:
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cmp eax, 19
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ja @f
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.19:
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cmp ebx, OS_BASE
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jae .fail
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stdcall load_library, ebx
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mov [esp+36], eax
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ret
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@@:
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cmp eax, 20
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ja @F
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.20:
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mov eax, ecx
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call user_realloc
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mov [esp+36], eax
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ret
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@@:
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cmp eax, 21 ;for test purposes only
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ja @f ;will be removed soon
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.21:
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cmp ebx, OS_BASE
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jae .fail
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@ -1112,7 +1112,14 @@ new_services:
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@@:
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mov [esp+36], eax
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ret
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.22:
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cmp ebx, OS_BASE
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jae .fail
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stdcall shmem_open, ebx, ecx, edx
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mov [esp+28], edx
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mov [esp+36], eax
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ret
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.fail:
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xor eax, eax
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@ -1309,181 +1316,3 @@ endp
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if 0
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; under constuction
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shmem_list:
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.bk dd shmem_list
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.fd dd shmem_list
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shmem
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.bk dd ?
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.fd dd ?
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.base dd ?
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.size dd ?
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.access dd ?
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.refcount dd ?
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.name rb 32
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align 4
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proc shmem_open stdcall name:dword, size:dword, access:dword
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locals
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mapped dd ?
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shm dd ?
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pages dd ?
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endl
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push esi
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push edi
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mov [mapped], 0
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mov eax, [name]
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test eax, eax
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jz .exit
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pushfd ;mutex required
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cli
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mov ebx, [shmem_list.fd]
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@@:
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cmp ebx, shmem_list
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je .not_found
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lea edx, [edx+24] ; link , base, size
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stdcall strncmp, edx, eax, 32
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test eax, eax
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je .found
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mov ebx, [ebx+4]
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jmp @B
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.found: ;check access rights
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mov eax, [access]
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test eax, SHM_CREATE
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mov ecx, [ebx+8]
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jnz .fail_exist
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and eax, ACC_MASK
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and ecx, ACC_MASK
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cmp eax, ecx
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jne .fail_acc
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stdcall user_alloc, [ebx+12]
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test eax, eax
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mov [mapped], eax
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jz .fail_mem
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mov eax, [ebx+4]
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mov ecx, [ebx+12]
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shr ecx, 12
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mov ebx, [mapped]
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call commit_pages
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.exit:
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mov eax, [mapped]
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pop edi
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pop esi
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ret
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.not_found:
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mov eax, [access]
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test eax, SHM_CREATE
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mov ebx, E_NOTFOUND
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jz .exit
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;create shmem
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mov ecx, [size]
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test ecx, ecx
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mov ebx, E_PARAM
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jz .exit
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add ecx, 4095
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and ecx, -4096
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mov [size], ecx
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stdcall user_alloc, ecx
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test eax, eax
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mov [mapped], eax
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mov ebx, E_NOMEM
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jz .exit
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mov eax, 24+32
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call malloc
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test eax, eax
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mov [shm], eax
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mov ebx, E_NOMEM
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jz .exit ;FIXME cleanup
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mov [eax+24+28], dword 0
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lea edx, [eax+24]
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stdcall strncpy, edx, [name], 31
|
||||
|
||||
mov eax, [size]
|
||||
shr eax, 12
|
||||
mov esi, eax
|
||||
stdcall alloc_pages, eax
|
||||
test eax, eax
|
||||
mov [pages], eax
|
||||
mov ebx, E_NOMEM
|
||||
jz .exit ;FIXME cleanup
|
||||
|
||||
mov edi, eax
|
||||
add edi, [size]
|
||||
and esi, 7
|
||||
add esi, -8
|
||||
jz @F
|
||||
|
||||
;release unused pages
|
||||
|
||||
.release:
|
||||
mov eax, edi
|
||||
add edi, 4096
|
||||
call free_page
|
||||
dec esi
|
||||
jnz .release
|
||||
|
||||
mov eax, [ebx+4]
|
||||
mov ecx, [ebx+12]
|
||||
shr ecx, 12
|
||||
mov ebx, [mapped]
|
||||
call commit_pages
|
||||
|
||||
mov eax, [access]
|
||||
and eax, ACC_MASK
|
||||
or eax, [pages]
|
||||
mov ebx, [mapped]
|
||||
mov ecx, [size]
|
||||
shr ecx, 12
|
||||
call commit_pages
|
||||
|
||||
mov edx, [shm]
|
||||
mov ecx, [pages]
|
||||
mov [edx+8], ecx
|
||||
mov ecx, [size]
|
||||
mov [edx+12], ecx
|
||||
|
||||
; mov [edx], shmem
|
||||
; mov [edx+4], [shmem.fd]
|
||||
; mov [shmem.fd.bk], edx
|
||||
; mov [shmem.fd], edx
|
||||
|
||||
xor ebx, ebx
|
||||
jmp .exit
|
||||
|
||||
.fail_exist:
|
||||
mov ebx, E_EXIST
|
||||
xor eax, eax
|
||||
ret
|
||||
.fail_access:
|
||||
mov ebx, E_ACCESS
|
||||
xor eax, eax
|
||||
ret
|
||||
.fail_mem:
|
||||
mov ebx, E_NOMEM
|
||||
xor eax, eax
|
||||
ret
|
||||
endp
|
||||
|
||||
end if
|
||||
|
||||
@ -123,13 +123,13 @@ iglobal
|
||||
dd 0
|
||||
dd 0
|
||||
dd 0
|
||||
dd sys_midi ; 20-ResetMidi and OutputMidi
|
||||
dd sys_setup ; 21-SetMidiBase,SetKeymap,SetShiftKeymap,.
|
||||
dd sys_settime ; 22-setting date,time,clock and alarm-clock
|
||||
dd sys_midi ; 20-ResetMidi and OutputMidi
|
||||
dd sys_setup ; 21-SetMidiBase,SetKeymap,SetShiftKeymap,.
|
||||
dd sys_settime ; 22-setting date,time,clock and alarm-clock
|
||||
dd 0
|
||||
dd syscall_cdaudio ; 24-PlayCdTrack,StopCd and GetCdPlaylist
|
||||
dd syscall_cdaudio ; 24-PlayCdTrack,StopCd and GetCdPlaylist
|
||||
dd 0 ;
|
||||
dd sys_getsetup ; 26-GetMidiBase,GetKeymap,GetShiftKeymap,.
|
||||
dd sys_getsetup ; 26-GetMidiBase,GetKeymap,GetShiftKeymap,.
|
||||
dd 0
|
||||
dd 0 ;
|
||||
dd 0
|
||||
@ -140,42 +140,42 @@ iglobal
|
||||
dd 0
|
||||
dd 0
|
||||
dd 0
|
||||
dd readmousepos ; 37-GetMousePosition_ScreenRelative,.
|
||||
dd 0 ; 38-DrawLine
|
||||
dd sys_getbackground ; 39-GetBackgroundSize,ReadBgrData,.
|
||||
dd readmousepos ; 37-GetMousePosition_ScreenRelative,.
|
||||
dd 0 ; 38-DrawLine
|
||||
dd sys_getbackground ; 39-GetBackgroundSize,ReadBgrData,.
|
||||
dd 0
|
||||
dd 0
|
||||
dd 0
|
||||
dd sys_outport ; 43-SendDeviceData
|
||||
dd sys_outport ; 43-SendDeviceData
|
||||
dd 0
|
||||
dd 0
|
||||
dd syscall_reserveportarea ; 46-ReservePortArea and FreePortArea
|
||||
dd display_number ; 47-WriteNum
|
||||
dd display_settings ; 48-SetRedrawType and SetButtonType
|
||||
dd sys_apm ; 49-Advanced Power Management (APM)
|
||||
dd display_number ; 47-WriteNum
|
||||
dd display_settings ; 48-SetRedrawType and SetButtonType
|
||||
dd sys_apm ; 49-Advanced Power Management (APM)
|
||||
dd random_shaped_window ; 50-Window shape & scale
|
||||
dd syscall_threads ; 51-Threads
|
||||
dd stack_driver_stat ; 52-Stack driver status
|
||||
dd socket ; 53-Socket interface
|
||||
dd syscall_threads ; 51-Threads
|
||||
dd stack_driver_stat ; 52-Stack driver status
|
||||
dd socket ; 53-Socket interface
|
||||
dd 0
|
||||
dd sound_interface ; 55-Sound interface
|
||||
dd sound_interface ; 55-Sound interface
|
||||
dd 0
|
||||
dd sys_pcibios ; 57-PCI BIOS32
|
||||
dd file_system ; 58-Common file system interface
|
||||
dd sys_pcibios ; 57-PCI BIOS32
|
||||
dd file_system ; 58-Common file system interface
|
||||
dd 0
|
||||
dd sys_IPC ; 60-Inter Process Communication
|
||||
dd sys_gs ; 61-Direct graphics access
|
||||
dd sys_pci ; 62-PCI functions
|
||||
dd sys_msg_board ; 63-System message board
|
||||
dd sys_IPC ; 60-Inter Process Communication
|
||||
dd sys_gs ; 61-Direct graphics access
|
||||
dd sys_pci ; 62-PCI functions
|
||||
dd sys_msg_board ; 63-System message board
|
||||
dd sys_resize_app_memory ; 64-Resize application memory usage
|
||||
dd syscall_putimage_palette; 65-PutImagePalette
|
||||
dd sys_process_def ; 66-Process definitions - keyboard
|
||||
dd sys_window_move ; 67-Window move or resize
|
||||
dd new_services ; 68-Some internal services
|
||||
dd sys_debug_services ; 69-Debug
|
||||
dd file_system_lfn ; 70-Common file system interface, version 2
|
||||
dd sys_process_def ; 66-Process definitions - keyboard
|
||||
dd sys_window_move ; 67-Window move or resize
|
||||
dd f68 ; 68-Some internal services
|
||||
dd sys_debug_services ; 69-Debug
|
||||
dd file_system_lfn ; 70-Common file system interface, version 2
|
||||
dd syscall_windowsettings ; 71-Window settings
|
||||
dd sys_sendwindowmsg ; 72-Send window message
|
||||
dd sys_sendwindowmsg ; 72-Send window message
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; NEW SYSTEM FUNCTIONS TABLE ;;
|
||||
|
||||
@ -110,8 +110,15 @@ vmode db '/sys/drivers/VMODE.MDR',0
|
||||
vrr_m db 'VRR_M',0
|
||||
kernel_file db 'KERNEL MNT'
|
||||
|
||||
|
||||
align 4
|
||||
;supported videomodes
|
||||
|
||||
shmem_list:
|
||||
.bk dd shmem_list
|
||||
.fd dd shmem_list
|
||||
|
||||
; supported videomodes
|
||||
|
||||
mode_1280_1024_32:
|
||||
dw 1280,1024,32,60
|
||||
mode_1280_1024_24:
|
||||
@ -283,36 +290,37 @@ irq15read rd 16
|
||||
irq_tab rd 16
|
||||
|
||||
mem_block_map rb 512
|
||||
event_map rb 64
|
||||
event_map rb 64
|
||||
mem_block_list rd 64
|
||||
large_block_list rd 31
|
||||
mem_block_mask rd 2
|
||||
large_block_mask rd 1
|
||||
|
||||
mem_used.fd rd 1
|
||||
mem_used.bk rd 1
|
||||
mem_used.fd rd 1
|
||||
mem_used.bk rd 1
|
||||
|
||||
mem_block_arr rd 1
|
||||
mem_block_start rd 1
|
||||
mem_block_end rd 1
|
||||
|
||||
heap_mutex rd 1
|
||||
heap_size rd 1
|
||||
heap_free rd 1
|
||||
heap_blocks rd 1
|
||||
free_blocks rd 1
|
||||
heap_mutex rd 1
|
||||
heap_size rd 1
|
||||
heap_free rd 1
|
||||
heap_blocks rd 1
|
||||
free_blocks rd 1
|
||||
|
||||
mst MEM_STATE
|
||||
|
||||
page_start rd 1
|
||||
page_end rd 1
|
||||
events rd 1
|
||||
event_start rd 1
|
||||
event_end rd 1
|
||||
event_uid rd 1
|
||||
page_start rd 1
|
||||
page_end rd 1
|
||||
events rd 1
|
||||
event_start rd 1
|
||||
event_end rd 1
|
||||
event_uid rd 1
|
||||
sys_page_map rd 1
|
||||
os_stack_seg rd 1
|
||||
|
||||
|
||||
srv.fd rd 1
|
||||
srv.bk rd 1
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user