[tor-commits] [sbws/master] scanner: add function to stop threads on SIGTERM

[juga@xxxxxxxxxxxxxx]

commit b85fb114278d81d74b0768ab1ba9f88cd1e929d4
Author: juga0 <juga@xxxxxxxxxx>
Date:   Tue Jan 8 15:57:46 2019 +0000

    scanner: add function to stop threads on SIGTERM
---
 sbws/core/scanner.py | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/sbws/core/scanner.py b/sbws/core/scanner.py
index b926149..7c2a937 100644
--- a/sbws/core/scanner.py
+++ b/sbws/core/scanner.py
@@ -1,5 +1,8 @@
 ''' Measure the relays. '''
 
+import signal
+import sys
+
 from ..lib.circuitbuilder import GapsCircuitBuilder as CB
 from ..lib.resultdump import ResultDump
 from ..lib.resultdump import ResultSuccess, ResultErrorCircuit
@@ -31,6 +34,24 @@ rd = None
 controller = None
 
 
+def stop_threads(signal, frame):
+    global rd, pool
+    log.debug('Stopping sbws.')
+    # Avoid new threads to start.
+    settings.set_end_event()
+    # Stop Pool threads
+    pool.close()
+    pool.join()
+    # Stop ResultDump thread
+    rd.thread.join()
+    # Stop Tor thread
+    controller.close()
+    sys.exit(0)
+
+
+signal.signal(signal.SIGTERM, stop_threads)
+
+
 def timed_recv_from_server(session, dest, byte_range):
     ''' Request the **byte_range** from the URL at **dest**. If successful,
     return True and the time it took to download. Otherwise return False and an



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