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function TFBLibrary.LoadIBLibrary: boolean; |
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|
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function TryLoadLibrary(LibraryPath: AnsiString; LibNames: TStrings): TLibHandle; |
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var i: integer; |
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begin |
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Result := NilHandle; |
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for i := 0 to LibNames.Count - 1 do |
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begin |
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Result := LoadLibrary(LibraryPath + LibNames[i]); |
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if Result <> NilHandle then |
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begin |
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FFBLibraryName := LibNames[i]; |
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Exit; |
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end; |
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end; |
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end; |
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|
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function FindLibrary(LibNameList: string): TLibHandle; |
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var LibNames: TStringList; |
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FirebirdDir: Ansistring; |
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begin |
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Result := NilHandle; |
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FirebirdDir := IncludeTrailingPathDelimiter(GetEnvironmentVariable('FIREBIRD')); |
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LibNames := TStringList.Create; |
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try |
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LibNames.Delimiter := ':'; |
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LibNames.StrictDelimiter := true; |
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LibNames.DelimitedText := LibNameList; {Split list on semi-colon} |
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if FirebirdDir <> '' then |
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begin |
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Result := TryLoadLibrary(FirebirdDir,LibNames); |
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if Result = NilHandle then |
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Result := TryLoadLibrary(FirebirdDir + 'lib' + DirectorySeparator,LibNames); |
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end; |
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if Result = NilHandle then |
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Result := TryLoadLibrary('',LibNames); |
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finally |
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LibNames.Free; |
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end; |
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end; |
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|
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var LibName: string; |
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begin |
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Result := FIBLibrary <> NilHandle; |
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if Result then Exit; |
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|
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LibName := GetOverrideLibName; |
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if LibName = '' then |
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LibName := (FFirebirdAPI as TFBClientAPI).GetFirebirdLibList; |
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FIBLibrary := FindLibrary(LibName); |
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{$IFDEF DARWIN} |
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if FIBLibrary = NilHandle then |
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begin |
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{See http://paulbeachsblog.blogspot.co.uk/2008/03/where-is-libfbclientdylib-on-macosx.html |
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Try loading direct from Firebird Framework} |
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|
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LibName := '/Library/Frameworks/Firebird.framework/Firebird'; |
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FIBLibrary := LoadLibrary(LibName); |
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if FIBLibrary = NilHandle then |
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begin |
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LibName := '/Library/Frameworks/Firebird.framework/Libraries/libfbclient.dylib'; |
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FIBLibrary := LoadLibrary(LibName); |
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end; |
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if FIBLibrary <> NilHandle then |
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FFBLibraryName := ExtractFileName(LibName); |
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end; |
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{$ENDIF} |
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Result := FIBLibrary <> NilHandle; |
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end; |
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|
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{SetEnvironmentVariable doesn't exist so we have to use C Library} |
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function setenv(name:Pchar; value:Pchar; replace:integer):integer;cdecl;external clib name 'setenv'; |
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function unsetenv(name:Pchar):integer;cdecl;external clib name 'unsetenv'; |
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|
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function SetEnvironmentVariable(name:PAnsiChar; value:PAnsiChar):boolean; |
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// Set environment variable; if empty string given, remove it. |
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begin |
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result:=false; //assume failure |
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if value = '' then |
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begin |
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// Assume user wants to remove variable. |
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if unsetenv(name)=0 then result:=true; |
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end |
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else |
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begin |
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// Non empty so set the variable |
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if setenv(name, value, 1)=0 then result:=true; |
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end; |
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end; |
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|
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class procedure TFBLibrary.SetupEnvironment; |
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var TmpDir: AnsiString; |
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begin |
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if FEnvSetupDone then Exit; |
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TmpDir := GetTempDir + |
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DirectorySeparator + 'firebird_' + sysutils.GetEnvironmentVariable('USER'); |
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if trim(sysutils.GetEnvironmentVariable('FIREBIRD_TMP')) = '' then |
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begin |
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if not DirectoryExists(tmpDir) then |
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mkdir(tmpDir); |
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SetEnvironmentVariable('FIREBIRD_TMP',PAnsiChar(TmpDir)); |
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end; |
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if trim(sysutils.GetEnvironmentVariable('FIREBIRD_LOCK')) = '' then |
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begin |
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if not DirectoryExists(tmpDir) then |
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mkdir(tmpDir); |
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SetEnvironmentVariable('FIREBIRD_LOCK',PAnsiChar(TmpDir)); |
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end; |
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FEnvSetupDone := true; |
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end; |
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|
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{Type and function definition for dlinfo imported from dlfcn.h} |
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const |
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RTLD_DI_ORIGIN = 6; |
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|
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type |
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Tdlinfo = function (Lib : Pointer; Request: longint; info: pointer) : Longint; cdecl; |
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|
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function TFBLibrary.GetLibraryFilePath: string; |
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var path: array [0..IBLocalBufferLength] of char; {hopefully this is big enough} |
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dlinfo: Tdlinfo; |
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begin |
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Result := GetLibraryName; |
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dlinfo := dlsym(RTLD_DEFAULT,'dlinfo'); |
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if assigned(dlinfo) then |
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begin |
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if dlinfo(Pointer(FIBLibrary),RTLD_DI_ORIGIN,@path) = -1 then |
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IBError(ibxeDLInfoError,[strpas(dlerror)]); |
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Result := strpas(@path) + DirectorySeparator + Result; |
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end; |
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|
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end; |
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|
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