0035838: IDE does not start / IPC fails to get file in temp dir

ID	Project	Category	View Status	Date Submitted	Last Update

0035838	Lazarus	IDE	public	2019-07-12 14:15	2019-07-12 14:22

Reporter	Martin Friebe	Assigned To
Priority	normal	Severity	minor	Reproducibility	always
Status	new	Resolution	open
Platform	64bit Intel	OS	win 10	OS Version	10
Product Version	2.1 (SVN)	Product Build
Target Version		Fixed in Version

Summary	0035838: IDE does not start / IPC fails to get file in temp dir
Description	In B:\lazarus_latest_svn_2\ide\lazadvancedipc.pp line 755 function TIPCServer.StartServer(const aDeletePendingRequests: Boolean): Boolean; begin if Active then Exit(True); FFileHandle := FileCreate(FFileName, fmCreate or fmShareExclusive, GLOBAL_RIGHTS); Result := (FFileHandle<>feInvalidHandle); FActive := Result; if Result and aDeletePendingRequests then DeletePendingRequests; end; FileCreate returns an invalid filehandle. (even if the file does not exist) This leads to procedure TUniqueServer.StartUnique(const aServerPrefix: string); ... I := 0; while not Active do begin Inc(I); if I < 10 then ServerID := aServerPrefix+'0'+IntToStr(I) else ServerID := aServerPrefix+IntToStr(I); StartServer; end; end; To loop forever.
Additional Information	This happens on windows, with the TEMP dir moved to a ramdisk.
Tags	No tags attached.

Fixed in Revision
LazTarget
Widgetset	Win32/Win64

Attached Files

Date Modified	Username	Field	Change
2019-07-12 14:15	Martin Friebe	New Issue
2019-07-12 14:22	Martin Friebe	Note Added: 0117218

Martin Friebe 2019-07-12 14:22 manager ~0117218	The problem happen because TEMP env points to a (sub)folder that does not yet exist. Not sure what apps should do in this case (but probably not looping forever) The same applies for other tmp folder, apps using the TMP env, seem to auto create the missing folder.