bpo-44011: New asyncio ssl implementation (#17975)
diff --git a/Lib/asyncio/constants.py b/Lib/asyncio/constants.py
index 33feed6..f171ead 100644
--- a/Lib/asyncio/constants.py
+++ b/Lib/asyncio/constants.py
@@ -15,10 +15,17 @@
# The default timeout matches that of Nginx.
SSL_HANDSHAKE_TIMEOUT = 60.0
+# Number of seconds to wait for SSL shutdown to complete
+# The default timeout mimics lingering_time
+SSL_SHUTDOWN_TIMEOUT = 30.0
+
# Used in sendfile fallback code. We use fallback for platforms
# that don't support sendfile, or for TLS connections.
SENDFILE_FALLBACK_READBUFFER_SIZE = 1024 * 256
+FLOW_CONTROL_HIGH_WATER_SSL_READ = 256 # KiB
+FLOW_CONTROL_HIGH_WATER_SSL_WRITE = 512 # KiB
+
# The enum should be here to break circular dependencies between
# base_events and sslproto
class _SendfileMode(enum.Enum):