Very Computer

by **xie..** » Fri, 23 Jan 1998 04:00:00

Can anyone tell me how to detect the status of a process. Basically, I
just want to know whether it's dead or alive.
Show me the functions in C.

Thanks.
Min

by **t..** » Fri, 23 Jan 1998 04:00:00

: Can anyone tell me how to detect the status of a process. Basically, I
: just want to know whether it's dead or alive.
: Show me the functions in C.

What is your definition of dead or alive ?

Maybe kill(2) will be sufficient for your needs ?

Make sure that you appreciate and can differentiate between 'alive and
processing' and 'supposedly alive but in fact zombie/defunct/not processing'.

IAP

by **Mikko Tyolajar** » Fri, 23 Jan 1998 04:00:00

>Can anyone tell me how to detect the status of a process. Basically, I
>just want to know whether it's dead or alive.
>Show me the functions in C.

To just see if a certaing pid is still around or not, try something like:

#include <errno.h>
#define ISALIVE(PID) ( !( kill((PID), 0) < 0 && errno == ESRCH ) )

On Solaris 2.x (or at least 2.5 and 2.6) you can use poll(2) on a file under
/proc to detect the demise of a process. See proc(4).

/Mikko
--

DynaSoft

by **Vic Abe** » Fri, 23 Jan 1998 04:00:00

>Can anyone tell me how to detect the status of a process. Basically, I
>just want to know whether it's dead or alive.
>Show me the functions in C.

man -s 2 kill

Very Computer

How do I check whether a process has died by using process ID in C?

How do I check whether a process has died by using process ID in C?

How do I check whether a process has died by using process ID in C?

How do I check whether a process has died by using process ID in C?

How do I check whether a process has died by using process ID in C?