Remove race waits (defer to client layer)

CHANGELOG

@@ -1,3 +1,12 @@
+- 0.1.6
+	* Sort upcoming queue item chronologically
+	* Add unit testing for upcoming query method
+- 0.1.5
+	* Add reserved state check method
+- 0.1.4
+	* Dependency cleanups
+- 0.1.3
+	* Add CLI args and config handling, settings object
 - 0.1.2
 	* Add CLI inspection tools
 - 0.1.1

chainqueue/error.py

@@ -24,12 +24,6 @@ class CacheIntegrityError(ChainQueueException):
     pass
 
 
-class BackendIntegrityError(ChainQueueException):
-    """Raised when queue backend has invalid state
-    """
-    pass
-
-
 class DuplicateTxError(ChainQueueException):
     """Backend already knows transaction
     """

chainqueue/store/base.py

@@ -7,10 +7,7 @@ import time
 # local imports
 from chainqueue.cache import CacheTx
 from chainqueue.entry import QueueEntry
-from chainqueue.error import (
-        NotLocalTxError,
-        BackendIntegrityError,
-        )
+from chainqueue.error import NotLocalTxError
 from chainqueue.enum import (
         StatusBits,
         all_errors,
@@ -32,8 +29,6 @@ all_local_errors = all_errors() - StatusBits.NETWORK_ERROR
 re_u = r'^[^_][_A-Z]+$'
 class Store:
 
-    race_delay = 0.1
-
     def __init__(self, chain_spec, state_store, index_store, counter, cache=None):
         self.chain_spec = chain_spec
         self.cache = cache
@@ -56,16 +51,13 @@ class Store:
             setattr(self, v, getattr(self.state_store, v))
 
         sync_err = None
-        for i in range(2):
         try:
             self.state_store.sync()
         except Exception as e:
             sync_err = e
-                time.sleep(self.race_delay)
-                continue
 
         if sync_err != None:
-            raise BackendIntegrityError(sync_err)
+            raise FileNotFoundError(sync_err)
 
 
     def put(self, v, cache_adapter=CacheTx):
@@ -84,16 +76,15 @@ class Store:
 
     def get(self, k):
         v = None
-        for i in range(2):
         s = self.index_store.get(k)
+        err = None
         try:
             self.state_store.sync()
             v = self.state_store.get(s)
-            except FileNotFoundError:
-                continue
-            break
+        except FileNotFoundError as e:
+            err = e
         if v == None:
-            raise NotLocalTxError(k)
+            raise NotLocalTxError('could not find tx {}: {}'.format(k, err))
         return (s, v,)
 
 

setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = chainqueue
-version = 0.1.6
+version = 0.1.7
 description = Generic blockchain transaction queue control
 author = Louis Holbrook
 author_email = dev@holbrook.no