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New sysfunction 70.10 "rename/move"
git-svn-id: svn://kolibrios.org@6917 a494cfbc-eb01-0410-851d-a64ba20cac60
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@ -1478,12 +1478,44 @@ dyndisk_handler:
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mov ecx, [ebx]
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cmp [edi+4], ecx
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jbe .unsupported
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push edx
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push ebp
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mov ebp, eax
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call dword [edi+8+ecx*4]
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pop ebp
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pop edx
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pushd edx ebp eax [edi+8+ecx*4]
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cmp ecx, 10
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jnz .callFS
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or ecx, -1
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mov edi, esi
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xor eax, eax
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repnz scasb
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mov edx, edi
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dec edi
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mov al, '/'
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std
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repnz scasb
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cld
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inc edi
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mov [edi], ah
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mov ebp, [current_slot]
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add ebp, APPDATA.cur_dir
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pushd ebx esi edx [ebp] ebp edi
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sub esi, 2
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mov [ebp], esi
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mov edi, edx
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mov esi, [ebx+16]
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mov eax, [ebx+20]
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cmp eax, 4
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jc @f
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xor eax, eax
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@@:
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call getFullPath
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pop edi ebp
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mov byte [edi], '/'
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popd [ebp] edi esi ebx
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test eax, eax
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jz .errorRename
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add edi, 2
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.callFS:
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pop eax ebp
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call eax
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pop ebp edx
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mov dword [esp+20], ebx
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.cleanup:
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mov dword [esp+32], eax
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@ -1501,6 +1533,8 @@ dyndisk_handler:
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movi eax, ERROR_UNSUPPORTED_FS
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jmp .cleanup
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.errorRename:
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pop eax eax ebp edx
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.notfound2:
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movi eax, ERROR_FILE_NOT_FOUND
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jmp .cleanup
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@ -4334,6 +4334,26 @@ Architecture Software Developer's Manual, Volume 3, Appendix B);
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eax - SF_FILE (70)
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[ebx] - SSF_CREATE_FOLDER (9)
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======================================================================
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======= Функция 70, подфункция 10 - переименование/перемещение =======
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======================================================================
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Параметры:
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* eax = 70 - номер функции
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* ebx = указатель на информационную структуру
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Формат информационной структуры:
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* +0: dword: 10 = номер подфункции
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* +4: dword: 0 (зарезервировано)
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* +8: dword: 0 (зарезервировано)
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* +12 = +0xC: dword: 0 (зарезервировано)
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* +16 = +0x10: dword: указатель на строку с новым именем/путём
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* +20 = +0x14: путь, правила формирования имён указаны в общем описании
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Возвращаемое значение:
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* eax = 0 - успешно, иначе код ошибки файловой системы
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* ebx разрушается
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Замечания:
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* Формирование нового пути отличается от общих правил:
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относительный путь относится к папке целевого файла (или папки),
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абсолютный путь считается от корня раздела.
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======================================================================
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========== Функция 71 - установить заголовок окна программы ==========
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======================================================================
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Параметры:
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@ -4290,6 +4290,26 @@ Remarks:
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eax - SF_FILE (70)
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[ebx] - SSF_CREATE_FOLDER (9)
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======================================================================
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============= Function 70, subfunction 10 - rename/move. =============
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======================================================================
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Parameters:
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* eax = 70 - function number
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* ebx = pointer to the information structure
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Format of the information structure:
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* +0: dword: 10 = subfunction number
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* +4: dword: 0 (reserved)
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* +8: dword: 0 (reserved)
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* +12 = +0xC: dword: 0 (reserved)
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* +16 = +0x10: dword: pointer to the new name/path string
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* +20 = +0x14: path, general rules of names forming
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Returned value:
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* eax = 0 - success, otherwise file system error code
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* ebx destroyed
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Remarks:
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* New path forming differs from general rules:
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relative path relates to the target's parent folder,
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absolute path relates to the partition's root folder.
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======================================================================
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================== Function 71 - set window caption ==================
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======================================================================
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Parameters:
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@ -29,6 +29,7 @@ fat_user_functions:
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dd 0
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dd fat_Delete
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dd fat_CreateFolder
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dd fat_Rename
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fat_user_functions_end:
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endg
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@ -46,7 +47,8 @@ PUSHAD_EDI equ [esp+0]
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struct FAT PARTITION
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fs_type db ?
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fat_change db ? ; 1=fat has changed
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rb 2
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createOption db ?
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rb 1
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Lock MUTEX ; currently operations with one partition
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; can not be executed in parallel since the legacy code is not ready
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SECTORS_PER_FAT dd ?
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@ -1841,16 +1843,16 @@ fat_get_sector:
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;----------------------------------------------------------------
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fat_CreateFolder:
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push 1
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mov [ebp+FAT.createOption], 0
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jmp @f
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fat_CreateFile:
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push 0
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mov [ebp+FAT.createOption], 1
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@@:
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call fat_lock
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pop eax
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mov ecx, [ebx+12]
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mov edx, [ebx+16]
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.rename:
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pushad
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xor edi, edi
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push esi
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@ -1936,16 +1938,16 @@ fat_CreateFile:
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add esp, 36
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call fat_unlock
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popad
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test al, al
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mov eax, ERROR_ACCESS_DENIED
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xor eax, eax
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cmp [ebp+FAT.createOption], 0
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jz @f
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mov al, 0
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mov al, ERROR_ACCESS_DENIED
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@@:
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xor ebx, ebx
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ret
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.exists_file:
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cmp byte [esp+36+28], 0
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cmp [ebp+FAT.createOption], 1
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jz @f
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add esp, 36
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jmp .noAccess
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@ -2091,14 +2093,10 @@ fat_CreateFile:
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jb .scan_cont
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; found!
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push esi ecx
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; If creating a directory, allocate one data cluster now and fail immediately
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; if this is impossible. This prevents from creating an invalid directory entry
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; on a full disk.
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; yup, the argument is quite non-intuitive... but what should I do if
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; the entire function uses such arguments? BTW, it refers to al from pushad,
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; which in turn is filled with 0 in fat_CreateFile and 1 in fat_CreateFolder.
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cmp byte [esp+8+12+8+12+36+28], 0
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jz .no.preallocate.folder.data
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; If creating a directory, allocate one data cluster or fail immediately if this is impossible.
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; This prevents from creating an invalid directory entry on a full disk.
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cmp [ebp+FAT.createOption], 0
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jnz .notFolder
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call get_free_FAT
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jnc @f
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add esp, 8+12+8
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@ -2106,7 +2104,7 @@ fat_CreateFile:
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@@:
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mov [esp+8+12+8+12+36+20], eax ; store the cluster somewhere
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.no.preallocate.folder.data: ; calculate name checksum
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.notFolder: ; calculate name checksum
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mov esi, [esp+8+12]
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mov ecx, 11
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xor eax, eax
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@ -2156,13 +2154,14 @@ fat_CreateFile:
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loop .writelfn
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pop eax esi
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.nolfn:
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xchg esi, [esp]
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pop esi
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add esp, 16
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mov ecx, 11
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rep movsb
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cmp [ebp+FAT.createOption], 2
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jz .copy
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mov word [edi], 20h ; attributes
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sub edi, 11
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pop esi ecx
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add esp, 12
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mov byte [edi+13], 0 ; tenths of a second at file creation time
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call get_time_for_file
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mov [edi+14], ax ; creation time
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@ -2171,17 +2170,14 @@ fat_CreateFile:
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mov [edi+16], ax ; creation date
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mov [edi+24], ax ; last write date
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mov [edi+18], ax ; last access date
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xor ecx, ecx
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mov word [edi+20], cx ; high word of cluster
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mov word [edi+26], cx ; low word of cluster - to be filled
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mov dword [edi+28], ecx ; file size - to be filled
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cmp byte [esp+36+28], cl
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jz .doit
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cmp [ebp+FAT.createOption], 0
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jnz .doit
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; create directory
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mov byte [edi+11], 10h ; attributes: folder
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mov esi, edi
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lea eax, [esp+8]
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call dword [eax+16] ; flush directory
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mov eax, [esp+36+20] ; extract saved cluster
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mov [esp+36+20], edi ; this is needed for calculating arg of add_disk_free_space!
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push ecx
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@ -2191,6 +2187,13 @@ fat_CreateFile:
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push edi
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jmp .doit2
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.copy:
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lea esi, [esp+72+11]
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mov cl, 21
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rep movsb
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sub edi, 32
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jmp .doit
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.done1:
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pop edi
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call get_time_for_file
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@ -2205,10 +2208,10 @@ fat_CreateFile:
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call dword [eax+16] ; flush directory
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push ecx
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mov ecx, [esp+4+36+24]
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push ecx
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push edi
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xor eax, eax
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test ecx, ecx
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jz .done
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push ecx edi
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call get_free_FAT
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jc .diskfull
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.doit2:
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@ -2229,8 +2232,8 @@ fat_CreateFile:
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add eax, [ebp+FAT.DATA_START]
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push [ebp+FAT.SECTORS_PER_CLUSTER]
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.write_sector:
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cmp byte [esp+20+36+28], 0
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jnz .writedir
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cmp [ebp+FAT.createOption], 0
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jz .writedir
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mov ecx, 512
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cmp dword [esp+12], ecx
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jb .writeshort
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@ -2325,18 +2328,20 @@ fat_CreateFile:
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.writedone:
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pop eax eax
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.done:
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xor eax, eax
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.ret:
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pop edi ecx
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inc ecx
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.done:
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sub esi, [esp+4+36+20]
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mov [esp+4+36+28], eax
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mov [esp+4+36+16], esi
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jecxz @f
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lea eax, [esp+12]
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call dword [eax+8]
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mov [edi+28], esi
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call dword [eax+16]
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mov [esp+36+16], ebx
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@@:
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lea eax, [esi+511]
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shr eax, 9
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mov ecx, [ebp+FAT.SECTORS_PER_CLUSTER]
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@ -2347,8 +2352,11 @@ fat_CreateFile:
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sub ecx, eax
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call add_disk_free_space
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add esp, 36
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cmp [ebp+FAT.createOption], 2
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jz @f
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call update_disk
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call fat_unlock
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@@:
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popad
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ret
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@ -3114,3 +3122,38 @@ fat_Delete:
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call fat_unlock
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xor eax, eax
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ret
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;----------------------------------------------------------------
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fat_Rename:
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; in: edi -> new path string in UTF-8
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push esi edi
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call fat_lock
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call hd_find_lfn
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pop ebx
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jc .error
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sub esp, 32
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mov esi, edi
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mov edi, esp
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mov ecx, 8
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rep movsd
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mov [ebp+FAT.createOption], 2
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mov esi, ebx
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call fat_CreateFile.rename
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add esp, 32
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pop esi
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test eax, eax
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jnz .ret
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push eax
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mov [ebp+FAT.longname_sec1], eax
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mov [ebp+FAT.longname_sec2], eax
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call hd_find_lfn
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jc .error
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mov byte [edi], 0xE5
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jmp fat_Delete.lfndel
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.error:
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push eax
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call fat_unlock
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pop eax ebx
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.ret:
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ret
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