Wait for an arbitrary process.
Vous ne pouvez pas sélectionner plus de 25 sujets Les noms de sujets doivent commencer par une lettre ou un nombre, peuvent contenir des tirets ('-') et peuvent comporter jusqu'à 35 caractères.
 
 
 
Damien Goutte-Gattat dd15b4a138 Fix man page header. il y a 1 an
lib Die on memory allocation error il y a 7 ans
m4 Initial commit il y a 7 ans
src Fix kevent flags il y a 7 ans
.gitignore Initial commit il y a 7 ans
AUTHORS Update project location. il y a 2 ans
COPYING Add docs files il y a 7 ans
Makefile.am Add man page il y a 7 ans
NEWS Update docs il y a 7 ans
README Update project location. il y a 2 ans
configure.ac Update docs il y a 7 ans
wait4.1.in Fix man page header. il y a 1 an

README

wait4 - Wait for an arbitrary process
=====================================

Description
-----------
wait4 allows its user to wait for the termination of an arbitrary
process specified by its PID. It works as the standard shell command
wait, but is not limited to waiting to the child processes of the
current shell.

On GNU/Linux systems where the Netlink interface is available, wait4 is
directly informed by the kernel as soon as the target process is
terminated, and the exit code of that process is used as the exit code
of wait4 itself. On other systems, wait4 acts by pretending to send a
signal to the target process every second; in that case, the exit code
is always 0, as there is no way to retrieve the exit code of the target
process.

When using Netlink, wait4 must be run as setuid root, as only a
privileged process can bind to an AF_NETLINK address; root privileges
are dropped immediately after the bind(2) call.


BSD kevent support
------------------
Starting from version 0.3.0, wait4 should be able to make use of the
kevent(2) call found on BSD systems, thus avoiding the signal-based
fallback method on those systems. This support has currently been
tested on NetBSD 6.0.1.


Copying
-------
wait4 is distributed under the terms of the GNU General Public License,
version 3 or higher. The full license is included in the COPYING file
of the source distribution.


Homepage and contact
--------------------
The project homepage, where release tarballs may be found, is located at
<https://incenp.org/dvlpt/wait4.html>. The latest source code is
available at <https://git.incenp.org/damien/wait4>.