bitbake: runqueue: Complete the merge of scenequeue and normal task execution

This combines the scqenequeue and normal task execution into one function
and simplifies the state engine accordingly.

This is the final set of cleanup to fully merge things without adding the
extra noise to the previous commits.

(Bitbake rev: 56f3396d8c7cfbebd175877c9d773e4e35f8dea1)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 109 insertions, 117 deletions

diff --git a/bitbake/lib/bb/runqueue.py b/bitbake/lib/bb/runqueue.py
index d995e4c04a..db0d852c54 100644
--- a/bitbake/lib/bb/runqueue.py
+++ b/bitbake/lib/bb/runqueue.py
@@ -103,8 +103,6 @@ class RunQueueStats:
 # runQueue state machine
 runQueuePrepare = 2
 runQueueSceneInit = 3
-runQueueSceneRun = 4
-runQueueRunInit = 5
 runQueueRunning = 6
 runQueueFailed = 7
 runQueueCleanUp = 8
@@ -1203,7 +1201,7 @@ class RunQueue:
         # Invoked at regular time intervals via the bitbake heartbeat event
         # while the build is running. We generate a unique name for the handler
         # here, just in case that there ever is more than one RunQueue instance,
-        # start the handler when reaching runQueueSceneRun, and stop it when
+        # start the handler when reaching runQueueSceneInit, and stop it when
         # done with the build.
         self.dm = monitordisk.diskMonitor(cfgData)
         self.dm_event_handler_name = '_bb_diskmonitor_' + str(id(self))
@@ -1433,7 +1431,7 @@ class RunQueue:
 
             if not self.dm_event_handler_registered:
                  res = bb.event.register(self.dm_event_handler_name,
-                                         lambda x: self.dm.check(self) if self.state in [runQueueSceneRun, runQueueRunning, runQueueCleanUp] else False,
+                                         lambda x: self.dm.check(self) if self.state in [runQueueRunning, runQueueCleanUp] else False,
                                          ('bb.event.HeartbeatEvent',))
                  self.dm_event_handler_registered = True
 
@@ -1465,8 +1463,6 @@ class RunQueue:
             self.state = runQueueRunning
 
         if self.state is runQueueRunning:
-            retval = self.rqexe.sq_execute()
-            # FIXME revtal
             retval = self.rqexe.execute()
 
         if self.state is runQueueCleanUp:
@@ -1899,19 +1895,118 @@ class RunQueueExecute:
 
     def execute(self):
         """
-        Run the tasks in a queue prepared by rqdata.prepare()
+        Run the tasks in a queue prepared by prepare_runqueue
         """
 
-        if self.cooker.configuration.setsceneonly:
-            return True
-
         self.rq.read_workers()
 
-        if self.stats.total == 0:
-            # nothing to do
-            self.rq.state = runQueueCleanUp
+        task = None
+        if not self.sqdone and self.can_start_task():
+            # Find the next setscene to run
+            for nexttask in self.rqdata.runq_setscene_tids:
+                if nexttask in self.sq_buildable and nexttask not in self.sq_running and self.sqdata.stamps[nexttask] not in self.build_stamps.values():
+                    if nexttask in self.sqdata.unskippable:
+                        logger.debug(2, "Setscene task %s is unskippable" % nexttask)
+                    if nexttask not in self.sqdata.unskippable and len(self.sqdata.sq_revdeps[nexttask]) > 0 and self.sqdata.sq_revdeps[nexttask].issubset(self.scenequeue_covered) and self.check_dependencies(nexttask, self.sqdata.sq_revdeps[nexttask]):
+                        fn = fn_from_tid(nexttask)
+                        foundtarget = False
 
-        task = self.sched.next()
+                        if nexttask in self.rqdata.target_tids:
+                            foundtarget = True
+                        if not foundtarget:
+                            logger.debug(2, "Skipping setscene for task %s" % nexttask)
+                            self.sq_task_skip(nexttask)
+                            self.scenequeue_notneeded.add(nexttask)
+                            return True
+                    if nexttask in self.sqdata.outrightfail:
+                        self.sq_task_failoutright(nexttask)
+                        return True
+                    task = nexttask
+                    break
+        if task is not None:
+            (mc, fn, taskname, taskfn) = split_tid_mcfn(task)
+            taskname = taskname + "_setscene"
+            if self.rq.check_stamp_task(task, taskname_from_tid(task), recurse = True, cache=self.stampcache):
+                logger.debug(2, 'Stamp for underlying task %s is current, so skipping setscene variant', task)
+                self.sq_task_failoutright(task)
+                return True
+
+            if self.cooker.configuration.force:
+                if task in self.rqdata.target_tids:
+                    self.sq_task_failoutright(task)
+                    return True
+
+            if self.rq.check_stamp_task(task, taskname, cache=self.stampcache):
+                logger.debug(2, 'Setscene stamp current task %s, so skip it and its dependencies', task)
+                self.sq_task_skip(task)
+                return True
+
+            if self.cooker.configuration.skipsetscene:
+                logger.debug(2, 'No setscene tasks should be executed. Skipping %s', task)
+                self.sq_task_failoutright(task)
+                return True
+
+            startevent = sceneQueueTaskStarted(task, self.sq_stats, self.rq)
+            bb.event.fire(startevent, self.cfgData)
+
+            taskdepdata = self.sq_build_taskdepdata(task)
+
+            taskdep = self.rqdata.dataCaches[mc].task_deps[taskfn]
+            taskhash = self.rqdata.get_task_hash(task)
+            unihash = self.rqdata.get_task_unihash(task)
+            if 'fakeroot' in taskdep and taskname in taskdep['fakeroot'] and not self.cooker.configuration.dry_run:
+                if not mc in self.rq.fakeworker:
+                    self.rq.start_fakeworker(self, mc)
+                self.rq.fakeworker[mc].process.stdin.write(b"<runtask>" + pickle.dumps((taskfn, task, taskname, taskhash, unihash, True, self.cooker.collection.get_file_appends(taskfn), taskdepdata, False)) + b"</runtask>")
+                self.rq.fakeworker[mc].process.stdin.flush()
+            else:
+                self.rq.worker[mc].process.stdin.write(b"<runtask>" + pickle.dumps((taskfn, task, taskname, taskhash, unihash, True, self.cooker.collection.get_file_appends(taskfn), taskdepdata, False)) + b"</runtask>")
+                self.rq.worker[mc].process.stdin.flush()
+
+            self.build_stamps[task] = bb.build.stampfile(taskname, self.rqdata.dataCaches[mc], taskfn, noextra=True)
+            self.build_stamps2.append(self.build_stamps[task])
+            self.sq_running.add(task)
+            self.sq_live.add(task)
+            self.sq_stats.taskActive()
+            if self.can_start_task():
+                return True
+
+        if not self.sq_live and not self.sqdone:
+            logger.info("Setscene tasks completed")
+            logger.debug(1, 'We could skip tasks %s', "\n".join(sorted(self.scenequeue_covered)))
+
+            completeevent = sceneQueueComplete(self.sq_stats, self.rq)
+            bb.event.fire(completeevent, self.cfgData)
+
+            err = False
+            for x in self.rqdata.runtaskentries:
+                if x not in self.tasks_covered and x not in self.tasks_notcovered:
+                    logger.error("Task %s was never moved from the setscene queue" % x)
+                    err = True
+                if x not in self.tasks_scenequeue_done:
+                    logger.error("Task %s was never processed by the setscene code" % x)
+                    err = True
+                if len(self.rqdata.runtaskentries[x].depends) == 0 and x not in self.runq_buildable:
+                    logger.error("Task %s was never marked as buildable by the setscene code" % x)
+                    err = True
+            if err:
+                self.rq.state = runQueueFailed
+                return True
+
+            if self.cooker.configuration.setsceneonly:
+                self.rq.state = runQueueComplete
+                return True
+            self.sqdone = True
+
+            if self.stats.total == 0:
+                # nothing to do
+                self.rq.state = runQueueComplete
+                return True
+
+        if self.cooker.configuration.setsceneonly:
+            task = None
+        else:
+            task = self.sched.next()
         if task is not None:
             (mc, fn, taskname, taskfn) = split_tid_mcfn(task)
 
@@ -2164,109 +2259,6 @@ class RunQueueExecute:
         self.sq_stats.taskSkipped()
         self.sq_stats.taskCompleted()
 
-    def sq_execute(self):
-        """
-        Run the tasks in a queue prepared by prepare_runqueue
-        """
-
-        if self.sqdone:
-            return True
-
-        self.rq.read_workers()
-
-        task = None
-        if self.can_start_task():
-            # Find the next setscene to run
-            for nexttask in self.rqdata.runq_setscene_tids:
-                if nexttask in self.sq_buildable and nexttask not in self.sq_running and self.sqdata.stamps[nexttask] not in self.build_stamps.values():
-                    if nexttask in self.sqdata.unskippable:
-                        logger.debug(2, "Setscene task %s is unskippable" % nexttask)
-                    if nexttask not in self.sqdata.unskippable and len(self.sqdata.sq_revdeps[nexttask]) > 0 and self.sqdata.sq_revdeps[nexttask].issubset(self.scenequeue_covered) and self.check_dependencies(nexttask, self.sqdata.sq_revdeps[nexttask]):
-                        fn = fn_from_tid(nexttask)
-                        foundtarget = False
-
-                        if nexttask in self.rqdata.target_tids:
-                            foundtarget = True
-                        if not foundtarget:
-                            logger.debug(2, "Skipping setscene for task %s" % nexttask)
-                            self.sq_task_skip(nexttask)
-                            self.scenequeue_notneeded.add(nexttask)
-                            return True
-                    if nexttask in self.sqdata.outrightfail:
-                        self.sq_task_failoutright(nexttask)
-                        return True
-                    task = nexttask
-                    break
-        if task is not None:
-            (mc, fn, taskname, taskfn) = split_tid_mcfn(task)
-            taskname = taskname + "_setscene"
-            if self.rq.check_stamp_task(task, taskname_from_tid(task), recurse = True, cache=self.stampcache):
-                logger.debug(2, 'Stamp for underlying task %s is current, so skipping setscene variant', task)
-                self.sq_task_failoutright(task)
-                return True
-
-            if self.cooker.configuration.force:
-                if task in self.rqdata.target_tids:
-                    self.sq_task_failoutright(task)
-                    return True
-
-            if self.rq.check_stamp_task(task, taskname, cache=self.stampcache):
-                logger.debug(2, 'Setscene stamp current task %s, so skip it and its dependencies', task)
-                self.sq_task_skip(task)
-                return True
-
-            if self.cooker.configuration.skipsetscene:
-                logger.debug(2, 'No setscene tasks should be executed. Skipping %s', task)
-                self.sq_task_failoutright(task)
-                return True
-
-            startevent = sceneQueueTaskStarted(task, self.sq_stats, self.rq)
-            bb.event.fire(startevent, self.cfgData)
-
-            taskdepdata = self.sq_build_taskdepdata(task)
-
-            taskdep = self.rqdata.dataCaches[mc].task_deps[taskfn]
-            taskhash = self.rqdata.get_task_hash(task)
-            unihash = self.rqdata.get_task_unihash(task)
-            if 'fakeroot' in taskdep and taskname in taskdep['fakeroot'] and not self.cooker.configuration.dry_run:
-                if not mc in self.rq.fakeworker:
-                    self.rq.start_fakeworker(self, mc)
-                self.rq.fakeworker[mc].process.stdin.write(b"<runtask>" + pickle.dumps((taskfn, task, taskname, taskhash, unihash, True, self.cooker.collection.get_file_appends(taskfn), taskdepdata, False)) + b"</runtask>")
-                self.rq.fakeworker[mc].process.stdin.flush()
-            else:
-                self.rq.worker[mc].process.stdin.write(b"<runtask>" + pickle.dumps((taskfn, task, taskname, taskhash, unihash, True, self.cooker.collection.get_file_appends(taskfn), taskdepdata, False)) + b"</runtask>")
-                self.rq.worker[mc].process.stdin.flush()
-
-            self.build_stamps[task] = bb.build.stampfile(taskname, self.rqdata.dataCaches[mc], taskfn, noextra=True)
-            self.build_stamps2.append(self.build_stamps[task])
-            self.sq_running.add(task)
-            self.sq_live.add(task)
-            self.sq_stats.taskActive()
-            if self.can_start_task():
-                return True
-
-        if self.stats.active > 0 or self.sq_stats.active > 0:
-            self.rq.read_workers()
-            return self.rq.active_fds()
-
-        #for tid in self.sqdata.sq_revdeps:
-        #    if tid not in self.sq_running:
-        #        buildable = tid in self.sq_buildable
-        #        revdeps = self.sqdata.sq_revdeps[tid]
-        #        bb.warn("Found we didn't run %s %s %s" % (tid, buildable, str(revdeps)))
-
-        logger.debug(1, 'We can skip tasks %s', "\n".join(sorted(self.scenequeue_covered)))
-
-        completeevent = sceneQueueComplete(self.sq_stats, self.rq)
-        bb.event.fire(completeevent, self.cfgData)
-
-        if self.cooker.configuration.setsceneonly:
-            self.rq.state = runQueueComplete
-
-        self.sqdone = True
-
-        return True
-
     def sq_build_taskdepdata(self, task):
         def getsetscenedeps(tid):
             deps = set()