1import enum 2 3# After the connection is lost, log warnings after this many write()s. 4LOG_THRESHOLD_FOR_CONNLOST_WRITES = 5 5 6# Seconds to wait before retrying accept(). 7ACCEPT_RETRY_DELAY = 1 8 9# Number of stack entries to capture in debug mode. 10# The larger the number, the slower the operation in debug mode 11# (see extract_stack() in format_helpers.py). 12DEBUG_STACK_DEPTH = 10 13 14# Number of seconds to wait for SSL handshake to complete 15# The default timeout matches that of Nginx. 16SSL_HANDSHAKE_TIMEOUT = 60.0 17 18# Number of seconds to wait for SSL shutdown to complete 19# The default timeout mimics lingering_time 20SSL_SHUTDOWN_TIMEOUT = 30.0 21 22# Used in sendfile fallback code. We use fallback for platforms 23# that don't support sendfile, or for TLS connections. 24SENDFILE_FALLBACK_READBUFFER_SIZE = 1024 * 256 25 26FLOW_CONTROL_HIGH_WATER_SSL_READ = 256 # KiB 27FLOW_CONTROL_HIGH_WATER_SSL_WRITE = 512 # KiB 28 29# The enum should be here to break circular dependencies between 30# base_events and sslproto 31class _SendfileMode(enum.Enum): 32 UNSUPPORTED = enum.auto() 33 TRY_NATIVE = enum.auto() 34 FALLBACK = enum.auto() 35