Merge pull request #619 from yarda/sighup-buffer

daemon: buffer sighup signal

tuned/daemon/controller.py

@@ -72,10 +72,16 @@ def terminate(self):
 		self._terminate.set()
 
 	def sighup(self):
-		if not self._daemon._sighup_processing.is_set():
-			self._daemon._sighup_processing.set()
-			if not self.reload():
-				self._daemon._sighup_processing.clear()
+		if self._daemon._sighup_processing.is_set():
+			self._daemon._sighup_pending.set()
+		else:
+			do_reload = True
+			while do_reload:
+				self._daemon._sighup_processing.set()
+				self._daemon._sighup_pending.clear()
+				if not self.reload():
+					self._daemon._sighup_processing.clear()
+				do_reload = self._daemon._sighup_pending.is_set()
 
 	@exports.signal("sbs")
 	def profile_changed(self, profile_name, result, errstr):

tuned/daemon/daemon.py

@@ -61,6 +61,8 @@ def _init_threads(self):
 		self._not_used = threading.Event()
 		# Flag which is set if SIGHUP is being processed
 		self._sighup_processing = threading.Event()
+		# Flag which is set if there is unprocessed SIGHUP pending
+		self._sighup_pending = threading.Event()
 		self._not_used.set()
 		self._profile_applied = threading.Event()