static void handle_child_process(int sig)
{
/* this will print all the child proccess status code termination values */
int stat;
printf("%d",wait(&stat));
}
i am afraid that the above statement would print
only the PIDS of the child process that are terminated and not the exit status of the child process.
Code:
int stat;
printf("%d",wait(&stat));
printf("%d",stat);
I'm having trouble with Abnormal Termination errors. What are they, what causes them and how can I prevent them from happening? Are they application specific? (2 Replies)
Hi All,
i am running a oracle procedure which writes a file . The same file is picked up by another script which runs in a cron after every 5 minutes.
Now the problem is that sometimes my script picks up a file while the procedure is still writing data in the file.
is there is any way i... (4 Replies)
Hello, have a look my top and ps as below
Inact memory reach 1.6G, does it normal ?
load averages: 0.07, 0.02, 0.01; up 7+06:48:52 02:58:01
91 processes: 2 running, 89 sleeping
CPU states: 0.0% user, 0.0% nice, 0.4% system, 0.0% interrupt, 99.6% idle
Memory: 24M... (0 Replies)
Is there a way I can run a command that will run in the kernel or in the memory and automatically kill certain scripts if they get to <defunct> processes, without having to be monitoring the server manually?
I have a Perl script which runs for 20k members and normally does not have any problems,... (2 Replies)
i am using HP-UX and i have this process called HPUX childwrapper taking about 99% cpu.i want to know what the process does? and if i should kill it (4 Replies)
Hey,
I've got a program that fork's a list of child processes, and keeps their pid's in a list.
After the parent finishes it's main business logic, it needs to check which child already finished - and when.
Is it possible - using waitpid or any other func\syscall - get this information... (0 Replies)
Hi,
I am facing problems with defunct processes. The problem is, the defuncts are being created and getting dissappeared by themselves.
I have a process that calls some scripts through a specified port, when this scripts starts executing, the defuncts also started to appear(lots and lots, will... (1 Reply)
ok, so i have no clue why this script i wrote spits out these bizarre characters:
i cant even copy and paste those characters on here because it just doesn't show up properly.
my question is, using sed, how can i get rid of all characters that aren't normal?
echo "abnormal characters" |... (4 Replies)
i'm grepping for words in the /var/adm/messages (sun solaris).
but it looks like while my grepping finds the strings, when it outputs them out, the beginning of some lines are chopped off.
Jun 13 14:06:02 sky.net ufs: NOTICE: alloc: /prod: file system full
3 14:39:19 sky.net ufs: NOTICE:... (1 Reply)
In solaris, orphan process is put to sleep mode and does not consume any CPU resources. In Linux, orphan process is kept in running state consuming all CPU and Ram resources. Is it the case? Is there a difference on how these operating systems will handle orphan processes?
The route cause of... (10 Replies)
Discussion started by: Belure Pooja B
10 Replies
LEARN ABOUT OPENSOLARIS
wait.h
wait.h(3HEAD) Headers wait.h(3HEAD)NAME
wait.h, wait - wait status
SYNOPSIS
#include <sys/wait.h>
DESCRIPTION
When a process waits for status from its children using either the wait(3C) or waitpid(3C) function, the status returned can be evaluated
with the following macros, defined in <sys/wait.h>. These macros evaluate to integral expressions. The stat argument to these macros is the
integer value returned from wait() or waitpid().
WCOREDUMP(stat) If the value of WIFSIGNALED (stat) is non-zero, this macro evaluates to a non-zero value if a core image of the ter-
minated child was created.
WEXITSTATUS(stat) If the value of WIFEXITED(stat) is non-zero, this macro evaluates to the exit code that the child process passed to
_exit() (see exit(2)) or exit(3C), or the value that the child process returned from main.
WIFCONTINUED(stat) Evaluates to a non-zero value if status was returned for a child process that has continued.
WIFEXITED(stat) Evaluates to a non-zero value if status was returned for a child process that terminated normally.
WIFSIGNALED(stat) Evaluates to a non-zero value if status was returned for a child process that terminated due to the receipt of a sig-
nal.
WIFSTOPPED(stat) Evaluates to a non-zero value if status was returned for a child process that is currently stopped.
WSTOPSIG(stat) If the value of WIFSTOPPED(stat) is non-zero, this macro evaluates to the number of the signal that caused the child
process to stop.
WTERMSIG(stat) If the value of WIFSIGNALED(stat) is non-zero, this macro evaluates to the number of the signal that caused the ter-
mination of the child process.
The <sys/wait.h> header defines the symbolic constants listed below for use with waitpid(3C).
WNOHANG Do not hang if no status is available; return immediately.
WUNTRACED Report status of stopped child process.
The symbolic constants listed below are defined as possible values for the options argument to waitid(2).
WEXITED Wait for processes that have exited.
WSTOPPED Status is returned for any child that has stopped upon receipt of a signal.
WCONTINUED Status is returned for any child that was stopped and has been continued.
WNOHANG Return immediately if there are no children to wait for.
WNOWAIT Keep the process whose status is returned in infop in a waitable state.
The type idtype_t is defined as an enumeration type whose possible values include the following:
P_ALL
P_PID
P_PGID
The id_t and pid_t types are defined as described in <sys/types.h>.
The siginfo_t type is defined as described in <signal.h>.
The rusage structure is defined as described in <sys/resource.h>.
Inclusion of the <sys/wait.h> header can also make visible all symbols from <signal.h> and <sys/resource.h>.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
SEE ALSO exit(2), waitid(2), exit(3C), wait(3C), waitpid(3C),attributes(5), standards(5)SunOS 5.11 10 Sep 2004 wait.h(3HEAD)