[ace-users] LynxOS + Timed Semaphores

[Johnny Willemsen]

Hi Abdul,

I don't see a reason why we can't use the emulation, have you tried to build
with the additonal define on lynxos 4.0?

Johnny

"Sowayan, Abdullah (N-DUA)" <abdullah.sowayan at lmco.com> wrote in message
news:<mailman.1295.1183671100.5286.ace-users at mail.cse.wustl.edu>...
> ACE VERSION: 5.5.9
> 
> LynxOS 4.0 doesn't have timed Semaphores, while LynxOS 4.2 does.
> 
> In $ACE_ROOT/ace/config-lynxos.h we find the following:
> 
> -------------------------------------------------------
> #if ACE_LYNXOS_MAJOR == 4 && ACE_LYNXOS_MINOR == 0
> # define ACE_LACKS_GETOPT_PROTOTYPE
> # define ACE_LACKS_INET_ATON_PROTOTYPE
> # define ACE_LACKS_REGEX_H
> # define ACE_LACKS_STRCASECMP_PROTOTYPE
> # define ACE_LACKS_STRNCASECMP_PROTOTYPE
> # define ACE_LACKS_SYS_SELECT_H
> # define ACE_HAS_NONCONST_GETBY
> #endif
> 
> #if (ACE_LYNXOS_MAJOR > 4) || (ACE_LYNXOS_MAJOR == 4 && ACE_LYNXOS_MINOR
> >= 2)
> // LynxOS 4.2 additons
> # define ACE_HAS_POSIX_SEM_TIMEOUT
> # define ACE_HAS_MUTEX_TIMEOUTS
> #endif
> ------------------------------------------------------
> 
> For LynxOS 4.2 we define ACE_HAS_POSIX_SEM_TIMEOUT because that feature
> is available. My question is, since LynxOS 4.0 lacks native support for
> timed semaphores, why don't we use ACE's built in emulation by defining
> ACE_HAS_POSIX_SEM_TIMEOUT_EMULATION?
> 
> Thanks,
> Abdul
> 
>