fix the arbiter. Make sure it notify the master when he's up.

examples/hello_pool.py

@@ -0,0 +1,18 @@
+# -*- coding: utf-8 -
+#
+# This file is part of pistil released under the MIT license. 
+# See the NOTICE for more information.
+
+from pistil.pool import PoolArbiter
+from pistil.worker import Worker
+
+class MyWorker(Worker):
+
+    def handle(self):
+        print "hello from worker n°%s" % self.pid
+
+if __name__ == "__main__":
+    conf = {"num_workers": 3 }
+    spec = (MyWorker, 30, "worker", {}, "test",)
+    a = PoolArbiter(conf, spec)
+    a.run()

examples/multiworker.py

@@ -3,41 +3,29 @@
 # This file is part of pistil released under the MIT license. 
 # See the NOTICE for more information.
 
-import time
 from pistil.arbiter import Arbiter
 from pistil.worker import Worker
-from http_parser.http import HttpStream
-from http_parser.reader import SocketReader
+
 
 class MyWorker(Worker):
 
-    def run(self):
-        while self.alive:
-            time.sleep(0.1)
-            print "hello %s" % self.name
-            self.notify()
+    def handle(self): 
+        print "hello worker 1 from %s" % self.name
 
 class MyWorker2(Worker):
 
-    def run(self):
-        print "yo"
-        while self.alive:
-            time.sleep(0.1)
-            print "hello 2 %s" % self.name
-            self.notify()
+    def handle(self):
+        print "hello worker 2 from %s" % self.name
 
 
 if __name__ == '__main__':
-
     conf = {}
 
     specs = [
         (MyWorker, 30, "worker", {}, "w1"),
         (MyWorker2, 30, "worker", {}, "w2"),
         (MyWorker2, 30, "kill", {}, "w3")
     ]
-
-
+    # launchh the arbiter
     arbiter = Arbiter(conf, specs)
-
     arbiter.run()

pistil/arbiter.py

@@ -150,6 +150,9 @@ def init_process(self):
         # Reseed the random number generator
         util.seed()
 
+        # prevent fd inheritance
+        util.close_on_exec(self.tmp.fileno())
+
         # init signals
         self.init_signals()
 
@@ -195,6 +198,8 @@ def run(self):
         self.spawn_workers()
         while True:
             try:
+                # notfy the master
+                self.tmp.notify()
                 self.reap_workers()
                 sig = self._SIG_QUEUE.pop(0) if len(self._SIG_QUEUE) else None
                 if sig is None:
@@ -257,7 +262,6 @@ def handle_term(self):
         self.stop(False)
         raise StopIteration
 
-
     def handle_usr1(self):
         """\
         SIGUSR1 handling.
@@ -283,6 +287,7 @@ def wakeup(self):
         except IOError, e:
             if e.errno not in [errno.EAGAIN, errno.EINTR]:
                 raise
+
 
     def halt(self, reason=None, exit_status=0):
         """ halt arbiter """

pistil/pool.py

@@ -107,7 +107,6 @@ def reload(self):
         # manage workers
         self.manage_workers() 
 
-
     def reap_workers(self):
         """\
         Reap workers to avoid zombie processes