topic semaphore in Operating System - HP-UX

semaphore

Victor.Lin — Thu, 07 Jun 2001 05:51:20 GMT

After a process creat a semaphore, how can other processes attach this semaphore ?
The following functions are listed in :
sem_init()
sem_destroy()
sem_open()
sem_close()
sem_wait()
sem_trywait()
sem_post()
sem_unlink()
sem_getvalue()
After typing "man" command 9 times, I find that there is no function for semaphore attach.
By the way, I can find what I want quickly using the online help while coding under SCO Unix.

Re: semaphore

Juan González — Thu, 07 Jun 2001 07:09:01 GMT

Hi Victor,
you can attach to a semaphore with the function sem_open() if it was created before.

Best Regards
JGM

Re: semaphore

Klaus Crusius — Thu, 07 Jun 2001 11:59:31 GMT

When coding in vi, try

:!man -k semaphore

(in order the -k option of man to work, root has to run "catman -w" some time before).