summaryrefslogtreecommitdiff
path: root/bitbake
diff options
context:
space:
mode:
Diffstat (limited to 'bitbake')
-rw-r--r--bitbake/lib/bb/runqueue.py20
1 files changed, 15 insertions, 5 deletions
diff --git a/bitbake/lib/bb/runqueue.py b/bitbake/lib/bb/runqueue.py
index 2830bc4ad..f8440dbcc 100644
--- a/bitbake/lib/bb/runqueue.py
+++ b/bitbake/lib/bb/runqueue.py
@@ -70,10 +70,12 @@ runQueueCleanUp = 7
runQueueComplete = 8
runQueueChildProcess = 9
-class RunQueueScheduler:
+class RunQueueScheduler(object):
"""
Control the order tasks are scheduled in.
"""
+ name = "basic"
+
def __init__(self, runqueue):
"""
The default scheduler just returns the first buildable task (the
@@ -101,6 +103,8 @@ class RunQueueSchedulerSpeed(RunQueueScheduler):
A scheduler optimised for speed. The priority map is sorted by task weight,
heavier weighted tasks (tasks needed by the most other tasks) are run first.
"""
+ name = "speed"
+
def __init__(self, runqueue):
"""
The priority map is sorted by task weight.
@@ -128,6 +132,8 @@ class RunQueueSchedulerCompletion(RunQueueSchedulerSpeed):
well where disk space is at a premium and classes like OE's rm_work are in
force.
"""
+ name = "completion"
+
def __init__(self, runqueue):
RunQueueSchedulerSpeed.__init__(self, runqueue)
from copy import deepcopy
@@ -638,11 +644,15 @@ class RunQueue:
# Check of higher length circular dependencies
self.runq_weight = self.calculate_task_weights(endpoints)
- # Decide what order to execute the tasks in, pick a scheduler
- #self.sched = RunQueueScheduler(self)
- if self.scheduler == "completion":
- self.sched = RunQueueSchedulerCompletion(self)
+ schedulers = [obj for obj in globals().itervalues()
+ if type(obj) is type and issubclass(obj, RunQueueScheduler)]
+ for scheduler in schedulers:
+ if self.scheduler == scheduler.name:
+ self.sched = scheduler(self)
+ break
else:
+ bb.error("Invalid scheduler '%s', using default 'speed' scheduler" % self.scheduler)
+ bb.error("Available schedulers: %s" % ", ".join(obj.name for obj in schedulers))
self.sched = RunQueueSchedulerSpeed(self)
# Sanity Check - Check for multiple tasks building the same provider