initscripts: Implement storing PIDs in loadproc

Some programs do not write their own PID files any more, but since our
initscripts heavily rely on those, this extension allows to store it
easily.

Signed-off-by: Daniel Weismüller <daniel.weismueller@ipfire.org>

diff --git a/src/initscripts/system/functions b/src/initscripts/system/functions
index e4cb304563f443589cb79b72998c151c894355dc..5a26aef45f843b55b95e628dbc93111a412b425f 100644 (file)
--- a/src/initscripts/system/functions
+++ b/src/initscripts/system/functions
@@ -446,6 +446,7 @@ loadproc()
        local pidfile=""
        local forcestart=""
        local nicelevel=""
+       local pid
 
 # This will ensure compatibility with previous LFS Bootscripts
        if [ -n "${PIDFILE}" ]; then
@@ -521,12 +522,19 @@ loadproc()
                (
                        ${cmd} &>/dev/null
                ) &
+               pid="$!"
                evaluate_retval
        else
                ${cmd}
+               pid="$!"
                evaluate_retval # This is "Probably" not LSB compliant, but required to be compatible with older bootscripts
        fi
 
+       # Write the pidfile
+       if [ -n "${pid}" -a -n "${pidfile}" ]; then
+               echo "${pid}" > "${pidfile}"
+       fi
+
        return 0
 }