Remove multi-core POW support

src/bitmessagemain.py

@@ -47,6 +47,7 @@ import json
 from subprocess import call #used when the API must execute an outside program
 import singleton
 import proofofwork
+import multiprocessing.forking
 
 #For each stream to which we connect, several outgoingSynSender threads will exist and will collectively create 8 connections with peers.
 class outgoingSynSender(threading.Thread):
@@ -3939,6 +3940,7 @@ if useVeryEasyProofOfWorkForTesting:
     shared.networkDefaultProofOfWorkNonceTrialsPerByte = int(shared.networkDefaultProofOfWorkNonceTrialsPerByte / 16)
     shared.networkDefaultPayloadLengthExtraBytes = int(shared.networkDefaultPayloadLengthExtraBytes / 7000)
 
+
 if __name__ == "__main__":
     # is the application already running?  If yes then exit.
     thisapp = singleton.singleinstance()

src/bitmessageqt/__init__.py

@@ -1431,10 +1431,10 @@ class MyForm(QtGui.QMainWindow):
                 shared.config.set('bitmessagesettings', 'defaultnoncetrialsperbyte',str(int(float(self.settingsDialogInstance.ui.lineEditTotalDifficulty.text())*shared.networkDefaultProofOfWorkNonceTrialsPerByte)))
             if float(self.settingsDialogInstance.ui.lineEditSmallMessageDifficulty.text()) >= 1:
                 shared.config.set('bitmessagesettings', 'defaultpayloadlengthextrabytes',str(int(float(self.settingsDialogInstance.ui.lineEditSmallMessageDifficulty.text())*shared.networkDefaultPayloadLengthExtraBytes)))
-            if str(self.settingsDialogInstance.ui.comboBoxMaxCores.currentText()) == 'All':
-                shared.config.set('bitmessagesettings', 'maxcores', '99999')
-            else:
-                shared.config.set('bitmessagesettings', 'maxcores', str(self.settingsDialogInstance.ui.comboBoxMaxCores.currentText()))
+            #if str(self.settingsDialogInstance.ui.comboBoxMaxCores.currentText()) == 'All':
+            #    shared.config.set('bitmessagesettings', 'maxcores', '99999')
+            #else:
+            #    shared.config.set('bitmessagesettings', 'maxcores', str(self.settingsDialogInstance.ui.comboBoxMaxCores.currentText()))
 
             with open(shared.appdata + 'keys.dat', 'wb') as configfile:
                 shared.config.write(configfile)
@@ -2140,8 +2140,8 @@ class settingsDialog(QtGui.QDialog):
         self.ui.lineEditTotalDifficulty.setText(str((float(shared.config.getint('bitmessagesettings', 'defaultnoncetrialsperbyte'))/shared.networkDefaultProofOfWorkNonceTrialsPerByte)))
         self.ui.lineEditSmallMessageDifficulty.setText(str((float(shared.config.getint('bitmessagesettings', 'defaultpayloadlengthextrabytes'))/shared.networkDefaultPayloadLengthExtraBytes)))
 
-        #On the System tab
-        try:
+        #'System' tab removed for now.
+        """try:
             maxCores = shared.config.getint('bitmessagesettings', 'maxcores')
         except:
             maxCores = 99999
@@ -2156,7 +2156,7 @@ class settingsDialog(QtGui.QDialog):
         elif maxCores <= 16:
             self.ui.comboBoxMaxCores.setCurrentIndex(4)
         else:
-            self.ui.comboBoxMaxCores.setCurrentIndex(5)
+            self.ui.comboBoxMaxCores.setCurrentIndex(5)"""
 
         QtGui.QWidget.resize(self,QtGui.QWidget.sizeHint(self))
 

src/proofofwork.py

@@ -1,10 +1,10 @@
-import shared
-import time
-from multiprocessing import Pool, cpu_count
+#import shared
+#import time
+#from multiprocessing import Pool, cpu_count
 import hashlib
 from struct import unpack, pack
-import sys
-import os
+#import sys
+#import os
 
 def _set_idle():
     try:
@@ -30,7 +30,13 @@ def _pool_worker(nonce, initialHash, target, pool_size):
     return [trialValue, nonce]
 
 def run(target, initialHash):
-    try:
+    nonce = 0
+    trialValue = 99999999999999999999
+    while trialValue > target:
+        nonce += 1
+        trialValue, = unpack('>Q',hashlib.sha512(hashlib.sha512(pack('>Q',nonce) + initialHash).digest()).digest()[0:8])
+    return [trialValue, nonce]
+    """try:
         pool_size = cpu_count()
     except:
         pool_size = 4
@@ -56,5 +62,5 @@ def run(target, initialHash):
                 result = result[i].get()
                 pool.terminate()
                 return result[0], result[1]
-        time.sleep(0.2)
+        time.sleep(0.2)"""
 

src/settings.py

@@ -2,8 +2,8 @@
 
 # Form implementation generated from reading ui file 'settings.ui'
 #
-# Created: Thu May 30 15:50:32 2013
-#      by: PyQt4 UI code generator 4.9.4
+# Created: Mon Jun 03 23:09:01 2013
+#      by: PyQt4 UI code generator 4.9.5
 #
 # WARNING! All changes made in this file will be lost!
 
@@ -172,28 +172,6 @@ class Ui_settingsDialog(object):
         self.label_10.setObjectName(_fromUtf8("label_10"))
         self.gridLayout_6.addWidget(self.label_10, 2, 0, 1, 3)
         self.tabWidgetSettings.addTab(self.tab, _fromUtf8(""))
-        self.tab_2 = QtGui.QWidget()
-        self.tab_2.setObjectName(_fromUtf8("tab_2"))
-        self.formLayout = QtGui.QFormLayout(self.tab_2)
-        self.formLayout.setObjectName(_fromUtf8("formLayout"))
-        self.label_13 = QtGui.QLabel(self.tab_2)
-        self.label_13.setObjectName(_fromUtf8("label_13"))
-        self.formLayout.setWidget(0, QtGui.QFormLayout.LabelRole, self.label_13)
-        self.comboBoxMaxCores = QtGui.QComboBox(self.tab_2)
-        sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Fixed, QtGui.QSizePolicy.Fixed)
-        sizePolicy.setHorizontalStretch(0)
-        sizePolicy.setVerticalStretch(0)
-        sizePolicy.setHeightForWidth(self.comboBoxMaxCores.sizePolicy().hasHeightForWidth())
-        self.comboBoxMaxCores.setSizePolicy(sizePolicy)
-        self.comboBoxMaxCores.setObjectName(_fromUtf8("comboBoxMaxCores"))
-        self.comboBoxMaxCores.addItem(_fromUtf8(""))
-        self.comboBoxMaxCores.addItem(_fromUtf8(""))
-        self.comboBoxMaxCores.addItem(_fromUtf8(""))
-        self.comboBoxMaxCores.addItem(_fromUtf8(""))
-        self.comboBoxMaxCores.addItem(_fromUtf8(""))
-        self.comboBoxMaxCores.addItem(_fromUtf8(""))
-        self.formLayout.setWidget(0, QtGui.QFormLayout.FieldRole, self.comboBoxMaxCores)
-        self.tabWidgetSettings.addTab(self.tab_2, _fromUtf8(""))
         self.gridLayout.addWidget(self.tabWidgetSettings, 0, 0, 1, 1)
 
         self.retranslateUi(settingsDialog)
@@ -244,12 +222,4 @@ class Ui_settingsDialog(object):
         self.label_12.setText(QtGui.QApplication.translate("settingsDialog", "The \'Small message difficulty\' mostly only affects the difficulty of sending small messages. Doubling this value makes it almost twice as difficult to send a small message but doesn\'t really affect large messages.", None, QtGui.QApplication.UnicodeUTF8))
         self.label_10.setText(QtGui.QApplication.translate("settingsDialog", "The \'Total difficulty\' affects the absolute amount of work the sender must complete. Doubling this value doubles the amount of work.", None, QtGui.QApplication.UnicodeUTF8))
         self.tabWidgetSettings.setTabText(self.tabWidgetSettings.indexOf(self.tab), QtGui.QApplication.translate("settingsDialog", "Demanded difficulty", None, QtGui.QApplication.UnicodeUTF8))
-        self.label_13.setText(QtGui.QApplication.translate("settingsDialog", "Maximum number of CPU cores to use when doing work:", None, QtGui.QApplication.UnicodeUTF8))
-        self.comboBoxMaxCores.setItemText(0, QtGui.QApplication.translate("settingsDialog", "1", None, QtGui.QApplication.UnicodeUTF8))
-        self.comboBoxMaxCores.setItemText(1, QtGui.QApplication.translate("settingsDialog", "2", None, QtGui.QApplication.UnicodeUTF8))
-        self.comboBoxMaxCores.setItemText(2, QtGui.QApplication.translate("settingsDialog", "4", None, QtGui.QApplication.UnicodeUTF8))
-        self.comboBoxMaxCores.setItemText(3, QtGui.QApplication.translate("settingsDialog", "8", None, QtGui.QApplication.UnicodeUTF8))
-        self.comboBoxMaxCores.setItemText(4, QtGui.QApplication.translate("settingsDialog", "16", None, QtGui.QApplication.UnicodeUTF8))
-        self.comboBoxMaxCores.setItemText(5, QtGui.QApplication.translate("settingsDialog", "All", None, QtGui.QApplication.UnicodeUTF8))
-        self.tabWidgetSettings.setTabText(self.tabWidgetSettings.indexOf(self.tab_2), QtGui.QApplication.translate("settingsDialog", "System", None, QtGui.QApplication.UnicodeUTF8))
 

src/settings.ui

@@ -373,60 +373,6 @@
        </item>
       </layout>
      </widget>
-     <widget class="QWidget" name="tab_2">
-      <attribute name="title">
-       <string>System</string>
-      </attribute>
-      <layout class="QFormLayout" name="formLayout">
-       <item row="0" column="0">
-        <widget class="QLabel" name="label_13">
-         <property name="text">
-          <string>Maximum number of CPU cores to use when doing work:</string>
-         </property>
-        </widget>
-       </item>
-       <item row="0" column="1">
-        <widget class="QComboBox" name="comboBoxMaxCores">
-         <property name="sizePolicy">
-          <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
-           <horstretch>0</horstretch>
-           <verstretch>0</verstretch>
-          </sizepolicy>
-         </property>
-         <item>
-          <property name="text">
-           <string>1</string>
-          </property>
-         </item>
-         <item>
-          <property name="text">
-           <string>2</string>
-          </property>
-         </item>
-         <item>
-          <property name="text">
-           <string>4</string>
-          </property>
-         </item>
-         <item>
-          <property name="text">
-           <string>8</string>
-          </property>
-         </item>
-         <item>
-          <property name="text">
-           <string>16</string>
-          </property>
-         </item>
-         <item>
-          <property name="text">
-           <string>All</string>
-          </property>
-         </item>
-        </widget>
-       </item>
-      </layout>
-     </widget>
     </widget>
    </item>
   </layout>