Otherwise the CVS has a work-around for Mac in ow_dir.c using a mutex and global variable.
Paul Alfille
On 10/9/06, Peter Kropf <[EMAIL PROTECTED]> wrote:
Things are progressing. I've just committed a couple of changes that
will allow for testing the compiler for nested function support during
the initial bootstrap / configure steps. See acinclude.m4 and
configure.ac for the changes. And the ow_dir.c module has been updated
to use the new NO_NESTED_FUNCTIONS macro to determine which way to go.
I thought this might be a better way to support nested functions
instead of making it platform specific.
With the new code in place, the ow_dir.c module compiles. But the
build craps out on the ow_fake.c module. There's another nested
function there. I haven't fixed it yet but should get to it tomorrow.
I would appreciate another pair of eyes looking over the changes I've
made to make sure they're sane and that I haven't snafued any other
platforms.
Thanks.
- Peter
On 10/8/06, Paul Alfille < [EMAIL PROTECTED]> wrote:
> Ok, I think the fix is in, though I can't test it without the correct target
> platform.
>
> Basically, I made global variables for the information we were tacitly
> passing, and put in a lock to protect them. Should be a big performance
> problem -- these directories are being pulled from RAM, not the 1-wire bus.
> Made the changes __MacOSX__ specific.
>
>
> On 10/8/06, Paul Alfille <[EMAIL PROTECTED]> wrote:
> > I can see why you hesitated with the nested function. There is no place to
> pass data into the function. Our choices are:
> > 1. Write our own "twalk"
> > 2. Use global variables and a mutex.
> >
> > I guess I'll do the later for the Mac. What's the "#define" for Mac?
> >
> > Paul
> >
> >
> >
> > On 10/8/06, Peter Kropf < [EMAIL PROTECTED]> wrote:
> > > Ok, I've fixed the makefile problem - there was an extra space after a
> > > backslash.
> > >
> > > The nested function seems to be a bit over my head right now. I'm not
> > > seeing a reasonable way to pass the pn2 variable to the action
> > > function. But I will take another shot at it tomorrow evening unless
> > > someone else gets there first ;-)
> > >
> > > - Peter
> > >
> > >
> > > On 10/7/06, Peter Kropf < [EMAIL PROTECTED] > wrote:
> > > > I'll start looking into it tonight but I'm not going to be able to
> > > > spend too much time on it. Getting late here and I need to be up & out
> > > > early tomorrow morning. Worst case, I'll start on it again tomorrow
> > > > evening.
> > > >
> > > > - Peter
> > > >
> > > >
> > > > On 10/7/06, Paul Alfille < [EMAIL PROTECTED] > wrote:
> > > > > Hi Peter,
> > > > >
> > > > > In the first instance, the tab was probably added automatically by
> the
> > > > > editor. Tabs are handled specially in makefiles, and if you can fix
> it, I'd
> > > > > be pleased.
> > > > >
> > > > > Nested functions: They are there only for convenience. All the ones
> dealing
> > > > > with threads were removed because of changes in recent linux kernels
> -- a
> > > > > security risk. Removing them involves some work with packing the
> relevant
> > > > > shared variables in a structure, and allocating memory if the
> subroutine is
> > > > > in a separate thread (so heap variables in one thread don't get
> reclaimed
> > > > > before the other thread is done with them).
> > > > >
> > > > > Again, if you want to tackle this, I'd be pleased. Otherwise I'll
> look at it
> > > > > tomorrow.
> > > > >
> > > > > A new release for the Mac platform would be great. The owshell
> functions
> > > > > would be especially useful there since FUSE is not supported as far
> as I
> > > > > know making shell access to the 1-wire bus is difficult.
> > > > >
> > > > > Paul Alfille
> > > > >
> > > > >
> > > > > On 10/8/06, Peter Kropf <[EMAIL PROTECTED]> wrote:
> > > > > >
> > > > > > Hi -
> > > > > >
> > > > > > Due to the recent demise of my Thinkpad, I'm not working on a
> MacBook
> > > > > > Pro. Things here are different but still very similar. But pretty
> fun.
> > > > > >
> > > > > > I'm just getting around to building owfs for the first time on
> MacOSX
> > > > > > and have run into a couple of problems. I would like to know if
> anyone
> > > > > > else is using MacOSX for their development. There's at least one
> > > > > > outstanding fix needed for the Python module and I'd like to get
> > > > > > moving on getting it done.
> > > > > >
> > > > > > The first problem is pretty minor but I'm not sure why it's
> happening.
> > > > > > The generated src/man/Makefile, there's a problem:
> > > > > >
> > > > > > fog:~/src/owfs peter$ make
> > > > > > Making all in src
> > > > > > Making all in include
> > > > > > make all-am
> > > > > > Making all in man
> > > > > > Makefile:531: *** missing separator (did you mean TAB instead of 8
> > > > > > spaces?). Stop.
> > > > > > make[1]: *** [all-recursive] Error 1
> > > > > > make: *** [all-recursive] Error 1
> > > > > > fog:~/src/owfs peter$
> > > > > >
> > > > > > Looking at the Makefile, the owtcl.n is on a line all by itself
> > > > > > preceeded by 8 spaces. Very strange but I should be able to figure
> out
> > > > > > why and fix it.
> > > > > >
> > > > > > The second problem is a bit more involved. The
> > > > > > module/owlib/src/c/ow_dir.c file contains a nested function in
> > > > > > FS_typedir around line 441. Nested functions aren't supported on
> > > > > > MacOSX. Before I make changes to this file and possibly screw
> things
> > > > > > up, I wanted to find out if nested functions are needed for a
> > > > > > particular reason. And if the solution is as simple as moving the
> > > > > > action function outside the scope of the FS_typedir function. Let
> me
> > > > > > know...
> > > > > >
> > > > > > Thanks!
> > > > > >
> > > > > > - Peter
> > > > > >
> > > > > >
> > > > >
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