add crash handler to tn-cli

tn-cli/tn-cli.py

@@ -39,7 +39,7 @@
 from tn_globals import to_json
 
 APP_NAME = "tn-cli"
-APP_VERSION = "1.5.4"
+APP_VERSION = "1.5.5"
 PROTOCOL_VERSION = "0"
 LIB_VERSION = pkg_resources.get_distribution("tinode_grpc").version
 GRPC_VERSION = pkg_resources.get_distribution("grpcio").version
@@ -61,6 +61,13 @@
 # This is needed for gRPC SSL to work correctly.
 os.environ["GRPC_SSL_CIPHER_SUITES"] = "HIGH+ECDSA"
 
+# Setup crash handler: close input reader otherwise a crash
+# makes terminal session unusable.
+def exception_hook(type, value, traceBack):
+    if tn_globals.InputThread != None:
+        tn_globals.InputThread.join(0.3)
+sys.excepthook = exception_hook
+
 # Enable the following variables for debugging.
 # os.environ["GRPC_TRACE"] = "all"
 # os.environ["GRPC_VERBOSITY"] = "INFO"