explain_waitpid_or_die(3) Library Functions Manual explain_waitpid_or_die(3)NAME
explain_waitpid_or_die - wait for process to change state and report errors
SYNOPSIS
#include <libexplain/waitpid.h>
int pid = explain_waitpid_or_die(int pid, int *status, int options);
DESCRIPTION
The explain_waitpid_or_die function is used to call the waitpid(2) system call. On failure an explanation will be printed to stderr,
obtained from explain_waitpid(3), and then the process terminates by calling exit(EXIT_FAILURE).
This function is intended to be used in a fashion similar to the following example:
explain_waitpid_or_die(pid, status, options);
pid The pid, exactly as to be passed to the waitpid(2) system call.
status The status, exactly as to be passed to the waitpid(2) system call.
options The options, exactly as to be passed to the waitpid(2) system call.
Returns:
This function only returns on success. On failure, prints an explanation and exits.
SEE ALSO waitpid(2)
wait for process to change state
explain_waitpid(3)
explain waitpid(2) errors
exit(2) terminate the calling process
COPYRIGHT
libexplain version 0.52
Copyright (C) 2008 Peter Miller
explain_waitpid_or_die(3)
Check Out this Related Man Page
explain_wait_or_die(3) Library Functions Manual explain_wait_or_die(3)NAME
explain_wait_or_die - wait for process to change state and report errors
SYNOPSIS
#include <libexplain/wait.h>
void explain_wait_or_die(int *status);
DESCRIPTION
The explain_wait_or_die function is used to call the wait(2) system call. On failure an explanation will be printed to stderr, obtained
from explain_wait(3), and then the process terminates by calling exit(EXIT_FAILURE).
This function is intended to be used in a fashion similar to the following example:
explain_wait_or_die(status);
status The status, exactly as to be passed to the wait(2) system call.
Returns:
This function only returns on success. On failure, prints an explanation and exits.
SEE ALSO wait(2) wait for process to change state
explain_wait(3)
explain wait(2) errors
exit(2) terminate the calling process
COPYRIGHT
libexplain version 0.52
Copyright (C) 2008 Peter Miller
explain_wait_or_die(3)
i'm pretty new to unix programming. i just wanna know how exactly fork(), waitpid() works. i have read some from the book, but it's still confusing. especially with those < 0 and == 0. plz help!!!! (1 Reply)
Assume I spawn a process on (csh) command line, like
> du -a / >& /dev/null &
which creates a process with id 1234. Now, I can suspend/resume that process with
> kill -STOP 1234
> kill -CONT 1234
and can query the process state via 'jobs' or 'ps. How can I though query that state... (6 Replies)
Hello,
how would i be able to call ps in C programming?
thanks,
---------- Post updated at 01:39 AM ---------- Previous update was at 01:31 AM ----------
here's the complete system call, ps -o pid -p %d, getpit() (2 Replies)
Hi folks, I am writing a simple program to understand how fork() and waitpid works, but it doesn't seem that is working like I wanted.
if(fork()==0){
//el hijo
pid1=getpid();
printf("\nSoy el hijo %d",pid1);
}else {
//el padre
if (fork()==0) {
//el hijo
pid2=getpid();... (2 Replies)