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* FindFirst/FindNext replaced with optimized versions based on the
code in the dos unit. git-svn-id: trunk@4772 -
This commit is contained in:
peter
parent
9a36c6d7a6
commit
25fe773e25
@ -303,50 +303,8 @@ begin
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Result:=Result or faSymLink;
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end;
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type
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pglob = ^tglob;
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tglob = record
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name : pchar;
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next : pglob;
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end;
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Function Dirname(Const path:pathstr):pathstr;
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{
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This function returns the directory part of a complete path.
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Unless the directory is root '/', The last character is not
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a slash.
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}
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var
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Dir : DirStr;
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Name : NameStr;
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Ext : ExtStr;
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begin
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FSplit(Path,Dir,Name,Ext);
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if length(Dir)>1 then
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Delete(Dir,length(Dir),1);
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DirName:=Dir;
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end;
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Function Basename(Const path:pathstr;Const suf:pathstr):pathstr;
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{
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This function returns the filename part of a complete path. If suf is
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supplied, it is cut off the filename.
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}
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var
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Dir : DirStr;
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Name : NameStr;
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Ext : ExtStr;
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begin
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FSplit(Path,Dir,Name,Ext);
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if Suf<>Ext then
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Name:=Name+Ext;
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BaseName:=Name;
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end;
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Function FNMatch(const Pattern,Name:shortstring):Boolean;
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Function FNMatch(const Pattern,Name:string):Boolean;
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Var
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LenPat,LenName : longint;
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@ -428,187 +386,144 @@ Begin {start FNMatch}
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End;
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Procedure Globfree(var p : pglob);
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{
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Release memory occupied by pglob structure, and names in it.
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sets p to nil.
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}
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var
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temp : pglob;
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begin
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while assigned(p) do
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begin
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temp:=p^.next;
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if assigned(p^.name) then
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freemem(p^.name);
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dispose(p);
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p:=temp;
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end;
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end;
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Function Glob(Const path:pathstr):pglob;
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{
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Fills a tglob structure with entries matching path,
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and returns a pointer to it. Returns nil on error,
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linuxerror is set accordingly.
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}
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var
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temp,
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temp2 : string[255];
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thedir : pdir;
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buffer : pdirent;
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root,
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current : pglob;
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begin
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{ Get directory }
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temp:=dirname(path);
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if temp='' then
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temp:='.';
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temp:=temp+#0;
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thedir:=fpopendir(@temp[1]);
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if thedir=nil then
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exit(nil);
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temp:=basename(path,''); { get the pattern }
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if thedir^.dd_fd<0 then
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exit(nil);
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{get the entries}
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root:=nil;
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current:=nil;
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repeat
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buffer:=fpreaddir(thedir^);
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if buffer=nil then
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break;
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temp2:=strpas(@(buffer^.d_name[0]));
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if fnmatch(temp,temp2) then
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begin
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if root=nil then
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begin
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new(root);
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current:=root;
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end
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else
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begin
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new(current^.next);
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current:=current^.next;
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end;
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if current=nil then
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begin
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fpseterrno(ESysENOMEM);
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globfree(root);
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break;
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end;
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current^.next:=nil;
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getmem(current^.name,length(temp2)+1);
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if current^.name=nil then
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begin
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fpseterrno(ESysENOMEM);
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globfree(root);
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break;
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end;
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move(buffer^.d_name[0],current^.name^,length(temp2)+1);
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end;
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until false;
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fpclosedir(thedir^);
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glob:=root;
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end;
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{
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GlobToSearch takes a glob entry, stats the file.
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The glob entry is removed.
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If FileAttributes match, the entry is reused
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}
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Type
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TGlobSearchRec = Record
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Path : shortString;
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GlobHandle : PGlob;
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end;
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PGlobSearchRec = ^TGlobSearchRec;
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TUnixFindData = Record
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NamePos : LongInt; {to track which search this is}
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DirPtr : Pointer; {directory pointer for reading directory}
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SearchSpec : String;
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SearchType : Byte; {0=normal, 1=open will close, 2=only 1 file}
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SearchAttr : Byte; {attribute we are searching for}
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End;
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PUnixFindData = ^TUnixFindData;
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Var
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CurrSearchNum : LongInt;
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Function GlobToTSearchRec (Var Info : TSearchRec) : Boolean;
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Var SInfo : Stat;
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p : Pglob;
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GlobSearchRec : PGlobSearchrec;
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begin
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GlobSearchRec:=Info.FindHandle;
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P:=GlobSearchRec^.GlobHandle;
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Result:=P<>Nil;
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If Result then
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Procedure FindClose(Var f: TSearchRec);
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var
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UnixFindData : PUnixFindData;
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Begin
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UnixFindData:=PUnixFindData(f.FindHandle);
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if UnixFindData=nil then
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exit;
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if UnixFindData^.SearchType=0 then
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begin
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GlobSearchRec^.GlobHandle:=P^.Next;
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Result:=Fpstat(GlobSearchRec^.Path+StrPas(p^.name),SInfo)>=0;
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Info.PathOnly:=GlobSearchRec^.Path;
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If Result then
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begin
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Info.Attr:=LinuxToWinAttr(p^.name,SInfo);
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Result:=(Info.ExcludeAttr and Info.Attr)=0;
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If Result Then
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With Info do
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begin
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Attr:=Info.Attr;
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If P^.Name<>Nil then
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Name:=strpas(p^.name);
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Time:=UnixToWinAge(Sinfo.st_mtime);
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Size:=Sinfo.st_Size;
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Mode:=Sinfo.st_mode;
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end;
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end;
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P^.Next:=Nil;
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GlobFree(P);
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if UnixFindData^.dirptr<>nil then
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fpclosedir(pdir(UnixFindData^.dirptr)^);
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end;
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end;
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Dispose(UnixFindData);
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f.FindHandle:=nil;
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End;
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Function DoFind(Var Rslt : TSearchRec) : Longint;
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Var
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GlobSearchRec : PGlobSearchRec;
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Function FindGetFileInfo(const s:string;var f:TSearchRec):boolean;
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var
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st : baseunix.stat;
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WinAttr : longint;
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begin
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Result:=-1;
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GlobSearchRec:=Rslt.FindHandle;
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If (GlobSearchRec^.GlobHandle<>Nil) then
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While (GlobSearchRec^.GlobHandle<>Nil) and not (Result=0) do
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If GlobToTSearchRec(Rslt) Then Result:=0;
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end;
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Function FindFirst (Const Path : String; Attr : Longint; out Rslt : TSearchRec) : Longint;
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Var
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GlobSearchRec : PGlobSearchRec;
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begin
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New(GlobSearchRec);
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GlobSearchRec^.Path:=ExpandFileName(ExtractFilePath(Path));
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GlobSearchRec^.GlobHandle:=Glob(Path);
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Rslt.ExcludeAttr:=Not Attr and (faHidden or faSysFile or faVolumeID or faDirectory); //!! Not correct !!
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Rslt.FindHandle:=GlobSearchRec;
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Result:=DoFind (Rslt);
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FindGetFileInfo:=false;
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if not fpstat(s,st)>=0 then
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exit;
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WinAttr:=LinuxToWinAttr(PChar(s),st);
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If ((WinAttr and Not(PUnixFindData(f.FindHandle)^.searchattr))=0) Then
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Begin
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f.Name:=Copy(s,PUnixFindData(f.FindHandle)^.NamePos+1,Length(s));
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f.Attr:=WinAttr;
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f.Size:=st.st_Size;
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f.Mode:=st.st_mode;
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f.Time:=UnixToWinAge(st.st_mtime);
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result:=true;
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End;
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end;
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Function FindNext (Var Rslt : TSearchRec) : Longint;
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begin
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Result:=DoFind (Rslt);
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end;
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Procedure FindClose (Var F : TSearchrec);
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{
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re-opens dir if not already in array and calls FindWorkProc
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}
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Var
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GlobSearchRec : PGlobSearchRec;
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DirName : String;
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i,
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ArrayPos : Longint;
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FName,
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SName : string;
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Found,
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Finished : boolean;
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p : pdirent;
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UnixFindData : PUnixFindData;
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Begin
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Result:=-1;
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UnixFindData:=PUnixFindData(Rslt.FindHandle);
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if UnixFindData=nil then
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exit;
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if (UnixFindData^.SearchType=0) and
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(UnixFindData^.Dirptr=nil) then
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begin
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If UnixFindData^.NamePos = 0 Then
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DirName:='./'
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Else
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DirName:=Copy(UnixFindData^.SearchSpec,1,UnixFindData^.NamePos);
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UnixFindData^.DirPtr := fpopendir(Pchar(DirName));
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end;
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SName:=Copy(UnixFindData^.SearchSpec,UnixFindData^.NamePos+1,Length(UnixFindData^.SearchSpec));
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Found:=False;
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Finished:=(UnixFindData^.dirptr=nil);
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While Not Finished Do
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Begin
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p:=fpreaddir(pdir(UnixFindData^.dirptr)^);
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if p=nil then
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FName:=''
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else
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FName:=p^.d_name;
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If FName='' Then
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Finished:=True
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Else
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Begin
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If FNMatch(SName,FName) Then
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Begin
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Found:=FindGetFileInfo(Copy(UnixFindData^.SearchSpec,1,UnixFindData^.NamePos)+FName,Rslt);
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if Found then
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begin
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Result:=0;
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exit;
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end;
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End;
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End;
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End;
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End;
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begin
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GlobSearchRec:=F.FindHandle;
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GlobFree (GlobSearchRec^.GlobHandle);
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Dispose(GlobSearchRec);
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end;
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Function FindFirst (Const Path : String; Attr : Longint; out Rslt : TSearchRec) : Longint;
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{
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opens dir and calls FindWorkProc
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}
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var
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UnixFindData : PUnixFindData;
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Begin
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Result:=-1;
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fillchar(Rslt,sizeof(Rslt),0);
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if Path='' then
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exit;
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{ Allocate UnixFindData }
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New(UnixFindData);
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FillChar(UnixFindData^,sizeof(UnixFindData),0);
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Rslt.FindHandle:=UnixFindData;
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{Create Info}
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UnixFindData^.SearchSpec := Path;
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{We always also search for readonly and archive, regardless of Attr:}
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UnixFindData^.SearchAttr := Attr or faarchive or fareadonly;
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UnixFindData^.NamePos := Length(UnixFindData^.SearchSpec);
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while (UnixFindData^.NamePos>0) and (UnixFindData^.SearchSpec[UnixFindData^.NamePos]<>'/') do
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dec(UnixFindData^.NamePos);
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{Wildcards?}
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if (Pos('?',Path)=0) and (Pos('*',Path)=0) then
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begin
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if FindGetFileInfo(Path,Rslt) then
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Result:=0;
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UnixFindData^.SearchType:=1;
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end
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else
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Result:=FindNext(Rslt);
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End;
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Function FileGetDate (Handle : Longint) : Longint;
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@ -718,7 +633,7 @@ begin
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inc(Drives);
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if Drives>26 then
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Drives:=4;
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Result:=Drives;
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Result:=Drives;
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end;
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