On Thu, 02 Oct 2008, Maurilio Longo wrote:
Hi Maurilio,
> it builds ok if I add
> #if defined( HB_OS_OS2 )
> #include <sys/stat.h>
> #define S_IREAD S_IRUSR
> #define S_IWRITE S_IWUSR
> #define S_IEXEC S_IXUSR
Thank you very much for your help. I think we can make sth like:
#ifndef S_IREAD
#define S_IREAD S_IRUSR
#endif
#ifndef S_IWRITE
#define S_IWRITE S_IWUSR
#endif
#ifndef S_IEXEC
#define S_IEXEC S_IXUSR
#endif
> ssize_t pread(int, void *, size_t, off_t);
> ssize_t pwrite(int, const void *, size_t, off_t);
> after harbour headers have been included.
> Can this be ok, given a working pread/pwrint inside runtime dll?
With pread()/pwrite() I'm not sure. If there is no OS level API call
for such functionality then they functions internally have to use
globally positioned read/write functions. It will not help us because
hb_fsSeek is not protected by common with above functions critical
section (if any is used internally by library which emulates them)
so I think it will be better to not enable handle sharing for OS2.
Now it's enabled only for *nixes where it's a must due to POSIX lock
behavior. In the future if it's be necessary for pseudo exclusive mode
in cloned WA then we add our own synchronization code inside filebuf.c
At least we will be sure that it works ;-)
best regards,
Przemek
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