[patch] Untested 'concept' patch

sigcont_not_tested.patch (text/plain), 1.34 KB, created by Tomáš "tpruzina" Pružina (amd64 [ex]AT) on 2013-07-08 00:01:02 UTC

diff --git a/pym/_emerge/Scheduler.py b/pym/_emerge/Scheduler.py
index 94d3d3f..91fc547 100644
--- a/pym/_emerge/Scheduler.py
+++ b/pym/_emerge/Scheduler.py
@@ -154,6 +154,7 @@ class Scheduler(PollScheduler):
 		self.target_root = settings["EROOT"]
 		self.trees = trees
 		self.myopts = myopts
+		self.timestamp = time.clock()
 		self._spinner = spinner
 		self._mtimedb = mtimedb
 		self._favorites = favorites
@@ -1006,6 +1007,14 @@ class Scheduler(PollScheduler):
 			earlier_sigint_handler = signal.signal(signal.SIGINT, sighandler)
 			earlier_sigterm_handler = signal.signal(signal.SIGTERM, sighandler)
 
+			# handles SIGCONT when working with --jobs
+			# this prevents schedule_tasks from rescheduling too
+			# early after SIGCONT
+			# this should delay rescheduling by about >5 seconds
+			def  sigcont_handler(self):
+				if self._jobs and self._max_load is not None:
+					self.timestamp = time.clock() + 5.0
+			
 			try:
 				rval = self._merge()
 			finally:
@@ -1542,6 +1551,12 @@ class Scheduler(PollScheduler):
 	def _schedule_tasks(self):
 
 		while True:
+			# Sleep if timestamp is 'in future', this prevents
+			# scheduler to reschedule after SIGCONT signal
+			# signal handler should set this to 'near future'
+			if self._jobs and self._max_load is not None:
+				while (self.timestamp > time.clock()):
+					time.sleep(1)
 
 			state_change = 0