On Tue, Aug 28, 2012 at 2:33 AM, Roland Mainz roland.ma...@nrubsig.org wrote:
On Tue, Aug 28, 2012 at 2:11 AM, Roland Mainz roland.ma...@nrubsig.org
wrote:
Attached (as astksh_fs_at_emulation002.diff.txt) is the 2nd
prototype patch which adds a POSIX |*at()| emulation (e.g.
|openat()|co.) to libast.
Notes:
- Only tested with ast-ksh.2012-08-24, not ast-open (yet)
ast-open.2012-08-24 compiles OK.
note that some applications _may_ fail if they do something like
#define fchdir() or #define chdir() ... these functions or cpp macros
MUST redirect to |ast_fchdir()| and |ast_chdir()| since the |*at()|
emulation remembers the last fd used to do some optimisations. If
|ast_fchdir()| and |ast_chdir()| are bypassed then this remembered
fd is likely stale and might cause subtle failures. This is not a
bug.
*sigh* ... and add |close()| -- |ast_close()| ... which I forgot even
in my own code. Welcome to sane programming at 2:30h AM... ;-(
Bye,
Roland
--
__ . . __
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\__\/\/__/ MPEG specialist, CJAVASunUnix programmer
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