FileOpen2: Difference between revisions
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m (→Function) |
(speedup) |
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;; P2 :i: File name | ;; P2 :i: File name | ||
;; P3 :i: Access Mode | ;; P3 :i: Access Mode | ||
;; 'r' | ;; 'r' : Read | ||
;; 'w | ;; 'w' : Read+Write | ||
;; P4 :i: Share mode | ;; P4 :i: Share mode | ||
;; '' : None (no access) | ;; '' : None (no access) | ||
;; 'r' : | ;; 'r' : Read (no delete, no write) | ||
;; ' | ;; 'w' : Read+Write (no delete) | ||
;; ' | ;; 'a' : Read+Write+Delete (full share) | ||
;; P5 :i: Create mode | ;; P5 :i: Create mode | ||
;; '' | ;; 'o' : Open existing only | ||
;; 'c' : Create if not exist | ;; 'c' : Create if not exist | ||
;; ' | ;; 'v' : Create and Overwrite | ||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | ||
!define FileOpen2 "!insertmacro _FileOpen2" | !define FileOpen2 "!insertmacro _FileOpen2" | ||
| Line 45: | Line 44: | ||
Exch $3 ;; Create | Exch $3 ;; Create | ||
StrCmp "w" $1 0 +3 | StrCmp "w" $1 0 +3 | ||
StrCpy $1 0xC0000000 ;; GENERIC_READ | GENERIC_WRITE | StrCpy $1 0xC0000000 ;; GENERIC_READ | GENERIC_WRITE | ||
Goto +2 | |||
;- else: "r", "", or anything else | |||
StrCpy $1 0x80000000 ;; GENERIC_READ | |||
StrCmp "" $2 0 +3 | StrCmp "" $2 0 +3 | ||
StrCpy $2 0 ;; FILE_SHARE_NONE | StrCpy $2 0 ;; FILE_SHARE_NONE | ||
Goto + | Goto +8 | ||
StrCmp "r" $2 0 +3 | StrCmp "r" $2 0 +3 | ||
StrCpy $2 1 ;; FILE_SHARE_READ | StrCpy $2 1 ;; FILE_SHARE_READ | ||
Goto + | Goto +5 | ||
StrCmp " | StrCmp "w" $2 0 +3 | ||
StrCpy $2 3 ;; FILE_SHARE_READ | FILE_SHARE_WRITE | StrCpy $2 3 ;; FILE_SHARE_READ | FILE_SHARE_WRITE | ||
Goto + | Goto +2 | ||
;- else: "rwd", "a", or anything else | |||
StrCpy $2 7 ;; FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE | StrCpy $2 7 ;; FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE | ||
StrCmp "" $3 0 +3 | StrCmp "v" $3 0 +3 | ||
StrCpy $3 | StrCpy $3 2 ;; CREATE_ALWAYS | ||
Goto + | Goto +5 | ||
StrCmp "c" $3 0 +3 | StrCmp "c" $3 0 +3 | ||
StrCpy $3 4 ;; OPEN_ALWAYS | StrCpy $3 4 ;; OPEN_ALWAYS | ||
Goto + | Goto +2 | ||
;- else: "o", "", or anything else | |||
StrCpy $3 | StrCpy $3 3 ;; OPEN_EXISTING | ||
System::Call 'Kernel32::CreateFile(t, i, i, i, i, i, i) i (r0, r1, r2, 0, r3, 0x80, 0) .r2' ;; Open/Create file | System::Call 'Kernel32::CreateFile(t, i, i, i, i, i, i) i (r0, r1, r2, 0, r3, 0x80, 0) .r2' ;; Open/Create file | ||
Revision as of 04:20, 11 November 2011
| Author: Lloigor (talk, contrib) |
Description
Open files with control over access, share and create modes with intuitive parameters.
Example
;; Open file with RW access, ReadOnly sharing, and if it does not exists, Creates it. $1 gets the file handle. ${FileOpen2} $1 "$SomeFile" "rw" "r" "c"
Function
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; Easily open files with more options than FileOpen ;; P1 :o: Handle returned ;; P2 :i: File name ;; P3 :i: Access Mode ;; 'r' : Read ;; 'w' : Read+Write ;; P4 :i: Share mode ;; '' : None (no access) ;; 'r' : Read (no delete, no write) ;; 'w' : Read+Write (no delete) ;; 'a' : Read+Write+Delete (full share) ;; P5 :i: Create mode ;; 'o' : Open existing only ;; 'c' : Create if not exist ;; 'v' : Create and Overwrite ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; !define FileOpen2 "!insertmacro _FileOpen2" !macro _FileOpen2 _Handle_ _File_ _Access_ _Share_ _Create_ Push "${_Create_}" Push "${_Share_}" Push "${_Access_}" Push "${_File_}" Call FileOpen2 Pop ${_Handle_} !macroend Function FileOpen2 ;; File, Access, Share, Create Exch $0 ;; File Exch Exch $1 ;; Access Exch 2 Exch $2 ;; Share / Return value Exch 3 Exch $3 ;; Create StrCmp "w" $1 0 +3 StrCpy $1 0xC0000000 ;; GENERIC_READ | GENERIC_WRITE Goto +2 ;- else: "r", "", or anything else StrCpy $1 0x80000000 ;; GENERIC_READ StrCmp "" $2 0 +3 StrCpy $2 0 ;; FILE_SHARE_NONE Goto +8 StrCmp "r" $2 0 +3 StrCpy $2 1 ;; FILE_SHARE_READ Goto +5 StrCmp "w" $2 0 +3 StrCpy $2 3 ;; FILE_SHARE_READ | FILE_SHARE_WRITE Goto +2 ;- else: "rwd", "a", or anything else StrCpy $2 7 ;; FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE StrCmp "v" $3 0 +3 StrCpy $3 2 ;; CREATE_ALWAYS Goto +5 StrCmp "c" $3 0 +3 StrCpy $3 4 ;; OPEN_ALWAYS Goto +2 ;- else: "o", "", or anything else StrCpy $3 3 ;; OPEN_EXISTING System::Call 'Kernel32::CreateFile(t, i, i, i, i, i, i) i (r0, r1, r2, 0, r3, 0x80, 0) .r2' ;; Open/Create file Pop $3 Pop $0 Pop $1 Exch $2 ;; Return Handle FunctionEnd
