fix: refactoring code of graceful exits (#1885)

* fix: plant a layer

* fix: print chanal

* fix: print sigs

* fix: print the sigs

* fix: reconstruct exit gracefully

* fix: fix the timeout

* fix: fix the netDone

* fix: fix the process exit

* fix: refactor the elegant startup code

* fix: fix the Signal.Notify

* fix: fix the code

* fix: remove not used header import.

* Update init.go

* fix: fix the InitConfig error

* fix: fix branch name

* fix: fix the signal value

* fix: replace the signal with SIGTERM

* fix: fix the script

* fix: fix the unsolve error

* fix: return the SIGTERM received,shutting down

* fix: fix the tranfer exit error

* fix: fix the error

* fix: replace the SIGnal

* fix: del the error return in tranfer

* fix: fix SIGTERM error

* fix: del the unreachalbe code

* fix: fix the make stop print  error

---------

Co-authored-by: OpenIM-Gordon <46924906+FGadvancer@users.noreply.github.com>
Co-authored-by: Xinwei Xiong (cubxxw) <3293172751nss@gmail.com>

scripts/lib/util.sh

@@ -486,7 +486,7 @@ openim::util::stop_services_on_ports() {
         local pid=$(echo $line | awk '{print $2}')
         
         # Try to stop the service by killing its process.
-        if kill -10 $pid; then
+        if kill -15 $pid; then
           stopped+=($port)
         else
           not_stopped+=($port)
@@ -561,7 +561,7 @@ openim::util::stop_services_with_name() {
             # If there's a Process ID, it means the service with the name is running.
             if [[ -n $pid ]]; then
                 # Try to stop the service by killing its process.
-                if kill -10 $pid 2>/dev/null; then
+                if kill -15 $pid 2>/dev/null; then
                     stopped_this_time=true
                 fi
             fi