When should we use thread-safe "_r" library calls?

Answer Posted / guest

If your system provides threads, it will probably provide a
set of thread-safe variants of standard C library routines.
A small number of these are mandated by the POSIX standard,
and many Unix vendors provide their own useful supersets,
including functions such as gethostbyname_r().
Unfortunately, the supersets that different vendors support
do not necessarily overlap, so you can only safely use the
standard POSIX-mandated functions. The thread-safe routines
are conceptually "cleaner" than their stateful
counterparts, though, so it is good practice to use them
wherever and whenever you can.

Is This Answer Correct ?    4 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

If your server is running on Unix and one of the sessions are keep on running without loading any data. how would you kill it?

627


How to work unix commands on windows xp without installing unix o/s in pc?

522


Explain what is protection boundary?

574


What is the working set of a process?

605


How would you kill a process?

633






Explain the different kinds of threads?

611


Explain what are threads?

635


What is the window of the working set of a process?

643


Explain how to work unix commands on windows xp without installing unix o/s in pc?

491


Explain what are the main families of threads?

572


Explain what is critical section?

555


What is protection boundary?

684


Explain the performance differences between user-space threads and kernel-supported threads.?

601


explain about the initial process sequence while the system boots up?

614


Tell me when should we use thread-safe "_r" library calls?

538