bitbake: siggen/runqueue/bitbake-worker: Improve siggen data transfer interface

We need to transfer some of the siggen data from the core/cooker into
the worker instances. There was a partial API created for this but
its ugly and its not possible to extend it from the siggen class.

This patch completes the interface/abstraction for the data and
means the class can extend/customise it in any siggen class.

(Bitbake rev: cf2d642052979d236185c5b8ca2c5478c06e62ae)

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

bitbake/lib/bb/runqueue.py

@@ -879,9 +879,7 @@ class RunQueue:
             "fakerootenv" : self.rqdata.dataCache.fakerootenv,
             "fakerootdirs" : self.rqdata.dataCache.fakerootdirs,
             "fakerootnoenv" : self.rqdata.dataCache.fakerootnoenv,
-            "hashes" : bb.parse.siggen.taskhash,
-            "hash_deps" : bb.parse.siggen.runtaskdeps,
-            "sigchecksums" : bb.parse.siggen.file_checksum_values,
+            "sigdata" : bb.parse.siggen.get_taskdata(),
             "runq_hash" : self.rqdata.runq_hash,
             "logdefaultdebug" : bb.msg.loggerDefaultDebugLevel,
             "logdefaultverbose" : bb.msg.loggerDefaultVerbose,

bitbake/lib/bb/siggen.py

@@ -197,10 +197,11 @@ class SignatureGeneratorBasic(SignatureGenerator):
         #d.setVar("BB_TASKHASH_task-%s" % task, taskhash[task])
         return h
 
-    def set_taskdata(self, hashes, deps, checksums):
-        self.runtaskdeps = deps
-        self.taskhash = hashes
-        self.file_checksum_values = checksums
+    def get_taskdata(self):
+       return (self.runtaskdeps, self.taskhash, self.file_checksum_values)
+
+    def set_taskdata(self, data):
+        self.runtaskdeps, self.taskhash, self.file_checksum_values = data
 
     def dump_sigtask(self, fn, task, stampbase, runtime):
         k = fn + "." + task