Support ignore_class and queue to noparallel decorator

src/Test/TestNoparallel.py

@@ -14,6 +14,13 @@ class ExampleClass(object):
             self.counted += 1
         return "counted:%s" % i
 
+    @util.Noparallel(queue=True, ignore_class=True)
+    def countQueue(self, num=5):
+        for i in range(1, num+1):
+            time.sleep(0.01)
+            self.counted += 1
+        return "counted:%s" % i
+
     @util.Noparallel(blocking=False)
     def countNoblocking(self, num=5):
         for i in range(1, num+1):
@@ -57,3 +64,34 @@ class TestNoparallel:
 
         obj1.countNoblocking().join()  # Allow again and wait until finishes
         assert obj1.counted == 10
+
+    def testQueue(self):
+        obj1 = ExampleClass()
+
+        threads = [
+            gevent.spawn(obj1.countQueue),
+            gevent.spawn(obj1.countQueue),
+            gevent.spawn(obj1.countQueue)
+        ]
+        gevent.joinall(threads)
+
+        assert obj1.counted == 15  # Calls should be executed sequentially
+
+    def testIngoreClass(self):
+        obj1 = ExampleClass()
+        obj2 = ExampleClass()
+
+        threads = [
+            gevent.spawn(obj1.countQueue),
+            gevent.spawn(obj1.countQueue),
+            gevent.spawn(obj1.countQueue),
+            gevent.spawn(obj2.countQueue),
+            gevent.spawn(obj2.countQueue)
+        ]
+        s = time.time()
+        gevent.joinall(threads)
+        assert obj1.counted == 15
+        assert obj2.counted == 10
+
+        taken = time.time() - s
+        assert taken >= 0.25  # Every count takes 0.05sec

src/util/Noparallel.py

@@ -4,14 +4,18 @@ import time
 
 class Noparallel(object):  # Only allow function running once in same time
 
-    def __init__(self, blocking=True, ignore_args=False):
+    def __init__(self, blocking=True, ignore_args=False, ignore_class=False, queue=False):
         self.threads = {}
         self.blocking = blocking  # Blocking: Acts like normal function else thread returned
+        self.queue = queue
         self.ignore_args = ignore_args
+        self.ignore_class = ignore_class
 
     def __call__(self, func):
         def wrapper(*args, **kwargs):
-            if self.ignore_args:
+            if self.ignore_class:
+                key = func  # Unique key only by function and class object
+            elif self.ignore_args:
                 key = (func, args[0])  # Unique key only by function and class object
             else:
                 key = (func, tuple(args), str(kwargs))  # Unique key for function including parameters
@@ -19,7 +23,11 @@ class Noparallel(object):  # Only allow function running once in same time
                 thread = self.threads[key]
                 if self.blocking:
                     thread.join()  # Blocking until its finished
+                    if self.queue:
+                        return wrapper(*args, **kwargs)  # Run again
+                    else:
                         return thread.value  # Return the value
+
                 else:  # No blocking
                     if thread.ready():  # Its finished, create a new
                         thread = gevent.spawn(func, *args, **kwargs)