From 7c847b01c30fc42cc78244f00fdf5eaa7b5df716 Mon Sep 17 00:00:00 2001
From: Richard Purdie <richard.purdie@linuxfoundation.org>
Date: Sat, 23 Nov 2019 11:48:31 +0000
Subject: prserv/serv: Only restart the server if settings change

The server is now restarting when running commands which doesn't make
sense. Only restart if its configuration has changed. This should
potentially fix various memory resident bitbake usages too.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
---
 lib/prserv/serv.py | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/lib/prserv/serv.py b/lib/prserv/serv.py
index 1d9148b81..6d8142fcc 100644
--- a/lib/prserv/serv.py
+++ b/lib/prserv/serv.py
@@ -450,29 +450,35 @@ class PRServiceConfigError(Exception):
 def auto_start(d):
     global singleton
 
-    # Shutdown any existing PR Server
-    auto_shutdown()
-
     host_params = list(filter(None, (d.getVar('PRSERV_HOST') or '').split(':')))
     if not host_params:
+        # Shutdown any existing PR Server
+        auto_shutdown()
         return None
 
     if len(host_params) != 2:
+        # Shutdown any existing PR Server
+        auto_shutdown()
         logger.critical('\n'.join(['PRSERV_HOST: incorrect format',
                 'Usage: PRSERV_HOST = "<hostname>:<port>"']))
         raise PRServiceConfigError
 
-    if is_local_special(host_params[0], int(host_params[1])) and not singleton:
+    if is_local_special(host_params[0], int(host_params[1])):
         import bb.utils
         cachedir = (d.getVar("PERSISTENT_DIR") or d.getVar("CACHE"))
         if not cachedir:
             logger.critical("Please set the 'PERSISTENT_DIR' or 'CACHE' variable")
             raise PRServiceConfigError
-        bb.utils.mkdirhier(cachedir)
         dbfile = os.path.join(cachedir, "prserv.sqlite3")
         logfile = os.path.join(cachedir, "prserv.log")
-        singleton = PRServSingleton(os.path.abspath(dbfile), os.path.abspath(logfile), ("localhost",0))
-        singleton.start()
+        if singleton:
+            if singleton.dbfile != dbfile:
+               # Shutdown any existing PR Server as doesn't match config
+               auto_shutdown()
+        if not singleton:
+            bb.utils.mkdirhier(cachedir)
+            singleton = PRServSingleton(os.path.abspath(dbfile), os.path.abspath(logfile), ("localhost",0))
+            singleton.start()
     if singleton:
         host, port = singleton.getinfo()
     else:
-- 
cgit 1.2.3-korg