Remove obsolete code

- PendingDownload and PendingUpload in inventory.py are obsolete
- the replacement functions only provide lengths and are in
  network/stats.py

src/bitmessageqt/__init__.py

@@ -47,9 +47,7 @@ from account import (
     GatewayAccount, MailchuckAccount, AccountColor)
 import dialogs
 from helper_generic import powQueueSize
-from inventory import (
-    PendingDownloadQueue, PendingUpload,
-    PendingUploadDeadlineException)
+from network.stats import pendingDownload, pendingUpload
 from uisignaler import UISignaler
 import knownnodes
 import paths
@@ -2701,10 +2699,10 @@ class MyForm(settingsmixin.SMainWindow):
         waitForSync = False
 
         # C PoW currently doesn't support interrupting and OpenCL is untested
-        if getPowType() == "python" and (powQueueSize() > 0 or PendingUpload().len() > 0):
+        if getPowType() == "python" and (powQueueSize() > 0 or pendingUpload() > 0):
             reply = QtGui.QMessageBox.question(self, _translate("MainWindow", "Proof of work pending"),
                     _translate("MainWindow", "%n object(s) pending proof of work", None, QtCore.QCoreApplication.CodecForTr, powQueueSize()) + ", " +
-                    _translate("MainWindow", "%n object(s) waiting to be distributed", None, QtCore.QCoreApplication.CodecForTr, PendingUpload().len()) + "\n\n" + 
+                    _translate("MainWindow", "%n object(s) waiting to be distributed", None, QtCore.QCoreApplication.CodecForTr, pendingUpload()) + "\n\n" + 
                     _translate("MainWindow", "Wait until these tasks finish?"),
                     QtGui.QMessageBox.Yes|QtGui.QMessageBox.No|QtGui.QMessageBox.Cancel, QtGui.QMessageBox.Cancel)
             if reply == QtGui.QMessageBox.No:
@@ -2712,16 +2710,14 @@ class MyForm(settingsmixin.SMainWindow):
             elif reply == QtGui.QMessageBox.Cancel:
                 return
 
-        if PendingDownloadQueue.totalSize() > 0:
+        if pendingDownload() > 0:
             reply = QtGui.QMessageBox.question(self, _translate("MainWindow", "Synchronisation pending"),
-                    _translate("MainWindow", "Bitmessage hasn't synchronised with the network, %n object(s) to be downloaded. If you quit now, it may cause delivery delays. Wait until the synchronisation finishes?", None, QtCore.QCoreApplication.CodecForTr, PendingDownloadQueue.totalSize()),
+                    _translate("MainWindow", "Bitmessage hasn't synchronised with the network, %n object(s) to be downloaded. If you quit now, it may cause delivery delays. Wait until the synchronisation finishes?", None, QtCore.QCoreApplication.CodecForTr, pendingDownload()),
                     QtGui.QMessageBox.Yes|QtGui.QMessageBox.No|QtGui.QMessageBox.Cancel, QtGui.QMessageBox.Cancel)
             if reply == QtGui.QMessageBox.Yes:
                 waitForSync = True
             elif reply == QtGui.QMessageBox.Cancel:
                 return
-            else:
-                PendingDownloadQueue.stop()
 
         if shared.statusIconColor == 'red' and not BMConfigParser().safeGetBoolean(
                 'bitmessagesettings', 'dontconnect'):
@@ -2752,7 +2748,7 @@ class MyForm(settingsmixin.SMainWindow):
         if waitForSync:
             self.updateStatusBar(_translate(
                 "MainWindow", "Waiting for finishing synchronisation..."))
-            while PendingDownloadQueue.totalSize() > 0:
+            while pendingDownload() > 0:
                 time.sleep(0.5)
                 QtCore.QCoreApplication.processEvents(
                     QtCore.QEventLoop.AllEvents, 1000
@@ -2794,19 +2790,18 @@ class MyForm(settingsmixin.SMainWindow):
             # check if upload (of objects created locally) pending
             self.updateStatusBar(_translate(
                 "MainWindow", "Waiting for objects to be sent... %1%").arg(50))
-            try:
-                while PendingUpload().progress() < 1:
-                    self.updateStatusBar(_translate(
-                        "MainWindow",
-                        "Waiting for objects to be sent... %1%"
-                        ).arg(int(50 + 20 * PendingUpload().progress()))
-                    )
-                    time.sleep(0.5)
-                    QtCore.QCoreApplication.processEvents(
-                        QtCore.QEventLoop.AllEvents, 1000
-                    )
-            except PendingUploadDeadlineException:
-                pass
+            maxPendingUpload = max(1, pendingUpload())
+                   
+            while pendingUpload() > 1:
+                self.updateStatusBar(_translate(
+                    "MainWindow",
+                    "Waiting for objects to be sent... %1%"
+                    ).arg(int(50 + 20 * (pendingUpload()/maxPendingUpload)))
+                )
+                time.sleep(0.5)
+                QtCore.QCoreApplication.processEvents(
+                    QtCore.QEventLoop.AllEvents, 1000
+                )
 
             QtCore.QCoreApplication.processEvents(
                 QtCore.QEventLoop.AllEvents, 1000

src/bitmessageqt/networkstatus.py

@@ -3,7 +3,7 @@ import time
 import shared
 
 from tr import _translate
-from inventory import Inventory, PendingDownloadQueue, PendingUpload
+from inventory import Inventory
 import knownnodes
 import l10n
 import network.stats

src/class_singleWorker.py

@@ -19,7 +19,7 @@ import helper_inbox
 from helper_generic import addDataPadding
 import helper_msgcoding
 from helper_threading import *
-from inventory import Inventory, PendingUpload
+from inventory import Inventory
 import l10n
 import protocol
 import queues
@@ -199,7 +199,6 @@ class singleWorker(threading.Thread, StoppableThread):
         objectType = 1
         Inventory()[inventoryHash] = (
             objectType, streamNumber, payload, embeddedTime,'')
-        PendingUpload().add(inventoryHash)
 
         logger.info('broadcasting inv with hash: ' + hexlify(inventoryHash))
 
@@ -289,7 +288,6 @@ class singleWorker(threading.Thread, StoppableThread):
         objectType = 1
         Inventory()[inventoryHash] = (
             objectType, streamNumber, payload, embeddedTime,'')
-        PendingUpload().add(inventoryHash)
 
         logger.info('broadcasting inv with hash: ' + hexlify(inventoryHash))
 
@@ -379,7 +377,6 @@ class singleWorker(threading.Thread, StoppableThread):
         objectType = 1
         Inventory()[inventoryHash] = (
             objectType, streamNumber, payload, embeddedTime, doubleHashOfAddressData[32:])
-        PendingUpload().add(inventoryHash)
 
         logger.info('broadcasting inv with hash: ' + hexlify(inventoryHash))
 
@@ -510,7 +507,6 @@ class singleWorker(threading.Thread, StoppableThread):
             objectType = 3
             Inventory()[inventoryHash] = (
                 objectType, streamNumber, payload, embeddedTime, tag)
-            PendingUpload().add(inventoryHash)
             logger.info('sending inv (within sendBroadcast function) for object: ' + hexlify(inventoryHash))
             queues.invQueue.put((streamNumber, inventoryHash))
 
@@ -834,7 +830,6 @@ class singleWorker(threading.Thread, StoppableThread):
             objectType = 2
             Inventory()[inventoryHash] = (
                 objectType, toStreamNumber, encryptedPayload, embeddedTime, '')
-            PendingUpload().add(inventoryHash)
             if BMConfigParser().has_section(toaddress) or not protocol.checkBitfield(behaviorBitfield, protocol.BITFIELD_DOESACK):
                 queues.UISignalQueue.put(('updateSentItemStatusByAckdata', (ackdata, tr._translate("MainWindow", "Message sent. Sent at %1").arg(l10n.formatTimestamp()))))
             else:
@@ -941,7 +936,6 @@ class singleWorker(threading.Thread, StoppableThread):
         objectType = 1
         Inventory()[inventoryHash] = (
             objectType, streamNumber, payload, embeddedTime, '')
-        PendingUpload().add(inventoryHash)
         logger.info('sending inv (for the getpubkey message)')
         queues.invQueue.put((streamNumber, inventoryHash))
         

src/inventory.py

@@ -32,164 +32,3 @@ class Inventory():
             raise AttributeError("%s instance has no attribute '%s'" %(self.__class__.__name__, attr))
         else:
             return realRet
-
-
-class PendingDownloadQueue(Queue.Queue):
-# keep a track of objects that have been advertised to us but we haven't downloaded them yet
-    maxWait = 300
-
-    def __init__(self, maxsize=0):
-        Queue.Queue.__init__(self, maxsize)
-        self.stopped = False
-        self.pending = {}
-        self.lock = RLock()
-
-    def task_done(self, hashId):
-        Queue.Queue.task_done(self)
-        try:
-            with self.lock:
-                del self.pending[hashId]
-        except KeyError:
-            pass
-
-    def get(self, block=True, timeout=None):
-        retval = Queue.Queue.get(self, block, timeout)
-        # no exception was raised
-        if not self.stopped:
-            with self.lock:
-                self.pending[retval] = time.time()
-        return retval
-
-    def clear(self):
-        with self.lock:
-            newPending = {}
-            for hashId in self.pending:
-                if self.pending[hashId] + PendingDownloadQueue.maxWait > time.time():
-                    newPending[hashId] = self.pending[hashId]
-            self.pending = newPending
-
-    @staticmethod
-    def totalSize():
-        size = 0
-        for thread in threadingEnumerate():
-            if thread.isAlive() and hasattr(thread, 'downloadQueue'):
-                size += thread.downloadQueue.qsize() + len(thread.downloadQueue.pending)
-        return size
-
-    @staticmethod
-    def stop():
-        for thread in threadingEnumerate():
-            if thread.isAlive() and hasattr(thread, 'downloadQueue'):
-                thread.downloadQueue.stopped = True
-                with thread.downloadQueue.lock:
-                    thread.downloadQueue.pending = {}
-
-
-class PendingUploadDeadlineException(Exception):
-    pass
-
-
-@Singleton
-class PendingUpload(object):
-# keep a track of objects that we have created but haven't distributed yet
-    def __init__(self):
-        super(self.__class__, self).__init__()
-        self.lock = RLock()
-        self.hashes = {}
-        # end by this time in any case
-        self.deadline = 0
-        self.maxLen = 0
-        # during shutdown, wait up to 20 seconds to finish uploading
-        self.shutdownWait = 20
-        # forget tracking objects after 60 seconds
-        self.objectWait = 60
-        # wait 10 seconds between clears
-        self.clearDelay = 10
-        self.lastCleared = time.time()
-
-    def add(self, objectHash = None):
-        with self.lock:
-            # add a new object into existing thread lists
-            if objectHash:
-                if objectHash not in self.hashes:
-                    self.hashes[objectHash] = {'created': time.time(), 'sendCount': 0, 'peers': []}
-                for thread in threadingEnumerate():
-                    if thread.isAlive() and hasattr(thread, 'peer') and \
-                        thread.peer not in self.hashes[objectHash]['peers']:
-                        self.hashes[objectHash]['peers'].append(thread.peer)
-            # add all objects into the current thread
-            else:
-                for objectHash in self.hashes:
-                    if current_thread().peer not in self.hashes[objectHash]['peers']:
-                        self.hashes[objectHash]['peers'].append(current_thread().peer)
-
-    def len(self):
-        self.clearHashes()
-        with self.lock:
-            return sum(1
-                for x in self.hashes if (self.hashes[x]['created'] + self.objectWait < time.time() or
-                    self.hashes[x]['sendCount'] == 0))
-
-    def _progress(self):
-        with self.lock:
-            return float(sum(len(self.hashes[x]['peers'])
-                for x in self.hashes if (self.hashes[x]['created'] + self.objectWait < time.time()) or
-                    self.hashes[x]['sendCount'] == 0))
-
-    def progress(self, raiseDeadline=True):
-        if self.maxLen < self._progress():
-            self.maxLen = self._progress()
-        if self.deadline < time.time():
-            if self.deadline > 0 and raiseDeadline:
-                raise PendingUploadDeadlineException
-            self.deadline = time.time() + 20
-        try:
-            return 1.0 - self._progress() / self.maxLen
-        except ZeroDivisionError:
-            return 1.0
-
-    def clearHashes(self, objectHash=None):
-        if objectHash is None:
-            if self.lastCleared > time.time() - self.clearDelay:
-                return
-            objects = self.hashes.keys()
-        else:
-            objects = objectHash, 
-        with self.lock:
-            for i in objects:
-                try:
-                    if self.hashes[i]['sendCount'] > 0 and (
-                        len(self.hashes[i]['peers']) == 0 or 
-                        self.hashes[i]['created'] + self.objectWait < time.time()):
-                        del self.hashes[i]
-                except KeyError:
-                    pass
-        self.lastCleared = time.time()
-    
-    def delete(self, objectHash=None):
-        if not hasattr(current_thread(), 'peer'):
-            return
-        if objectHash is None:
-            return
-        with self.lock:
-            try:
-                if objectHash in self.hashes and current_thread().peer in self.hashes[objectHash]['peers']:
-                    self.hashes[objectHash]['sendCount'] += 1
-                    self.hashes[objectHash]['peers'].remove(current_thread().peer)
-            except KeyError:
-                pass
-        self.clearHashes(objectHash)
-
-    def stop(self):
-        with self.lock:
-            self.hashes = {}
-
-    def threadEnd(self):
-        with self.lock:
-            for objectHash in self.hashes:
-                try:
-                    if current_thread().peer in self.hashes[objectHash]['peers']:
-                        self.hashes[objectHash]['peers'].remove(current_thread().peer)
-                except KeyError:
-                    pass
-        self.clearHashes()

src/network/objectracker.py

@@ -4,6 +4,7 @@ from threading import RLock
 from inventory import Inventory
 import network.connectionpool
 from network.dandelion import Dandelion
+from network.stats import pendingDownload
 from randomtrackingdict import RandomTrackingDict
 from state import missingObjects
 
@@ -54,8 +55,7 @@ class ObjectTracker(object):
     def clean(self):
         if self.lastCleaned < time.time() - ObjectTracker.invCleanPeriod:
             if haveBloom:
-                # FIXME
-                if PendingDownloadQueue().size() == 0:
+                if pendingDownload() == 0:
                     self.initInvBloom()
                 self.initAddrBloom()
             else: