Forum OpenACS Development: Re: NaviServer on Windows: [ns_logroll] returns "Permission denied"

I did find the following piece of text inside TCL's code:

"The many functions in this structure are broken down into three
categories: infrastructure functions (almost all of which must be
implemented), operational functions (which must be implemented if a
complete filesystem is provided), and efficiency functions (which need
only be implemented if they can be done so efficiently, or if they have
side-effects which are required by the filesystem; Tcl has less
efficient emulations it can fall back on). It is important to note
that, in the current version of Tcl, most of these fallbacks are only
used to handle commands initiated in Tcl, not in C. What this means is,
that if a "file rename" command is issued in Tcl, and the relevant
filesystem(s) do not implement their "Tcl_FSRenameFileProc", Tcl's
core will instead fallback on a combination of other filesystem
functions (it will use "Tcl_FSCopyFileProc" followed by
"Tcl_FSDeleteFileProc", and if "Tcl_FSCopyFileProc\"is not
implemented there is a further fallback). However, if a
"Tcl_FSRenameFileProc" command is issued at the C level, no such
fallbacks occur


Just to let you know that the latest changes in NaviServer did not fix the ns_logroll issue. I can now execute, the command, but the result is not what is expected. Here is the output after executing "ns_logroll" a few times in the /ds/shell:

-rwxrwx---+ 1 Administratoren SYSTEM 2299588 26. Jun 22:52 error.log
-rwxrwx---+ 1 Administratoren SYSTEM 2216752 26. Jun 22:48 error.log.000
-rwxrwx---+ 1 Administratoren SYSTEM 2216752 26. Jun 22:48 error.log.001
-rwxrwx---+ 1 Administratoren SYSTEM 2216752 26. Jun 22:48 error.log.002
-rwxrwx---+ 1 Administratoren SYSTEM 2216752 26. Jun 22:48 error.log.003

ns_logroll seems to perform a copy operation. But it doesn't start over with an empty error.log...


Thank you Frank for spotting this.
I've just uploaded version 3.3.2 of my installer/distribution that should fix it:

static int
Rename(const char *from, const char *to)
int err;
Tcl_Obj *fromObj, *toObj;


fromObj = Tcl_NewStringObj(from, -1);

toObj = Tcl_NewStringObj(to, -1);

#ifdef WIN32
err != CopyFile(from, to, FALSE);
if (err == 0) {
File * fw = (FILE *)NULL;
if ((fw = fopen(from, "w")) != (FILE *)NULL) {
fprintf(fw, "");
err = Tcl_FSRenameFile(fromObj, toObj);
if (err != 0) {
Ns_Log(Error, "rollfile: failed to rename file '%s' to '%s': '%s'",
from, to, strerror(Tcl_GetErrno()));

return err;

Thank you,

Dear Frank, could you double check that in your config you have

ns_param logroll on