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gh-121423: Improve import time of socket (#121424)
Improve import time of `socket` by writing `socket.errorTab` as a constant and lazy import modules. Co-authored-by: Pieter Eendebak <pieter.eendebak@gmail.com> Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com> Co-authored-by: Gregory P. Smith <greg@krypto.org> Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com> Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com>
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Wulian
GitHub
parent
91ff700de2
commit
7bd964dbbe
208
Lib/socket.py
208
Lib/socket.py
@ -52,7 +52,9 @@ the setsockopt() and getsockopt() methods.
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import _socket
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from _socket import *
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import os, sys, io, selectors
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import io
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import os
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import sys
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from enum import IntEnum, IntFlag
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try:
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@ -110,102 +112,103 @@ def _intenum_converter(value, enum_klass):
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# WSA error codes
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if sys.platform.lower().startswith("win"):
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errorTab = {}
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errorTab[6] = "Specified event object handle is invalid."
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errorTab[8] = "Insufficient memory available."
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errorTab[87] = "One or more parameters are invalid."
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errorTab[995] = "Overlapped operation aborted."
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errorTab[996] = "Overlapped I/O event object not in signaled state."
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errorTab[997] = "Overlapped operation will complete later."
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errorTab[10004] = "The operation was interrupted."
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errorTab[10009] = "A bad file handle was passed."
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errorTab[10013] = "Permission denied."
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errorTab[10014] = "A fault occurred on the network??" # WSAEFAULT
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errorTab[10022] = "An invalid operation was attempted."
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errorTab[10024] = "Too many open files."
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errorTab[10035] = "The socket operation would block."
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errorTab[10036] = "A blocking operation is already in progress."
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errorTab[10037] = "Operation already in progress."
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errorTab[10038] = "Socket operation on nonsocket."
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errorTab[10039] = "Destination address required."
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errorTab[10040] = "Message too long."
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errorTab[10041] = "Protocol wrong type for socket."
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errorTab[10042] = "Bad protocol option."
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errorTab[10043] = "Protocol not supported."
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errorTab[10044] = "Socket type not supported."
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errorTab[10045] = "Operation not supported."
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errorTab[10046] = "Protocol family not supported."
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errorTab[10047] = "Address family not supported by protocol family."
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errorTab[10048] = "The network address is in use."
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errorTab[10049] = "Cannot assign requested address."
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errorTab[10050] = "Network is down."
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errorTab[10051] = "Network is unreachable."
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errorTab[10052] = "Network dropped connection on reset."
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errorTab[10053] = "Software caused connection abort."
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errorTab[10054] = "The connection has been reset."
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errorTab[10055] = "No buffer space available."
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errorTab[10056] = "Socket is already connected."
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errorTab[10057] = "Socket is not connected."
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errorTab[10058] = "The network has been shut down."
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errorTab[10059] = "Too many references."
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errorTab[10060] = "The operation timed out."
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errorTab[10061] = "Connection refused."
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errorTab[10062] = "Cannot translate name."
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errorTab[10063] = "The name is too long."
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errorTab[10064] = "The host is down."
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errorTab[10065] = "The host is unreachable."
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errorTab[10066] = "Directory not empty."
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errorTab[10067] = "Too many processes."
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errorTab[10068] = "User quota exceeded."
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errorTab[10069] = "Disk quota exceeded."
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errorTab[10070] = "Stale file handle reference."
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errorTab[10071] = "Item is remote."
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errorTab[10091] = "Network subsystem is unavailable."
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errorTab[10092] = "Winsock.dll version out of range."
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errorTab[10093] = "Successful WSAStartup not yet performed."
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errorTab[10101] = "Graceful shutdown in progress."
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errorTab[10102] = "No more results from WSALookupServiceNext."
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errorTab[10103] = "Call has been canceled."
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errorTab[10104] = "Procedure call table is invalid."
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errorTab[10105] = "Service provider is invalid."
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errorTab[10106] = "Service provider failed to initialize."
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errorTab[10107] = "System call failure."
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errorTab[10108] = "Service not found."
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errorTab[10109] = "Class type not found."
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errorTab[10110] = "No more results from WSALookupServiceNext."
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errorTab[10111] = "Call was canceled."
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errorTab[10112] = "Database query was refused."
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errorTab[11001] = "Host not found."
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errorTab[11002] = "Nonauthoritative host not found."
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errorTab[11003] = "This is a nonrecoverable error."
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errorTab[11004] = "Valid name, no data record requested type."
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errorTab[11005] = "QoS receivers."
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errorTab[11006] = "QoS senders."
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errorTab[11007] = "No QoS senders."
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errorTab[11008] = "QoS no receivers."
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errorTab[11009] = "QoS request confirmed."
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errorTab[11010] = "QoS admission error."
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errorTab[11011] = "QoS policy failure."
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errorTab[11012] = "QoS bad style."
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errorTab[11013] = "QoS bad object."
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errorTab[11014] = "QoS traffic control error."
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errorTab[11015] = "QoS generic error."
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errorTab[11016] = "QoS service type error."
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errorTab[11017] = "QoS flowspec error."
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errorTab[11018] = "Invalid QoS provider buffer."
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errorTab[11019] = "Invalid QoS filter style."
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errorTab[11020] = "Invalid QoS filter style."
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errorTab[11021] = "Incorrect QoS filter count."
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errorTab[11022] = "Invalid QoS object length."
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errorTab[11023] = "Incorrect QoS flow count."
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errorTab[11024] = "Unrecognized QoS object."
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errorTab[11025] = "Invalid QoS policy object."
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errorTab[11026] = "Invalid QoS flow descriptor."
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errorTab[11027] = "Invalid QoS provider-specific flowspec."
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errorTab[11028] = "Invalid QoS provider-specific filterspec."
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errorTab[11029] = "Invalid QoS shape discard mode object."
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errorTab[11030] = "Invalid QoS shaping rate object."
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errorTab[11031] = "Reserved policy QoS element type."
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errorTab = {
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6: "Specified event object handle is invalid.",
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8: "Insufficient memory available.",
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87: "One or more parameters are invalid.",
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995: "Overlapped operation aborted.",
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996: "Overlapped I/O event object not in signaled state.",
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997: "Overlapped operation will complete later.",
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10004: "The operation was interrupted.",
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10009: "A bad file handle was passed.",
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10013: "Permission denied.",
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10014: "A fault occurred on the network??",
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10022: "An invalid operation was attempted.",
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10024: "Too many open files.",
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10035: "The socket operation would block.",
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10036: "A blocking operation is already in progress.",
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10037: "Operation already in progress.",
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10038: "Socket operation on nonsocket.",
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10039: "Destination address required.",
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10040: "Message too long.",
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10041: "Protocol wrong type for socket.",
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10042: "Bad protocol option.",
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10043: "Protocol not supported.",
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10044: "Socket type not supported.",
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10045: "Operation not supported.",
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10046: "Protocol family not supported.",
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10047: "Address family not supported by protocol family.",
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10048: "The network address is in use.",
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10049: "Cannot assign requested address.",
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10050: "Network is down.",
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10051: "Network is unreachable.",
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10052: "Network dropped connection on reset.",
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10053: "Software caused connection abort.",
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10054: "The connection has been reset.",
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10055: "No buffer space available.",
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10056: "Socket is already connected.",
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10057: "Socket is not connected.",
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10058: "The network has been shut down.",
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10059: "Too many references.",
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10060: "The operation timed out.",
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10061: "Connection refused.",
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10062: "Cannot translate name.",
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10063: "The name is too long.",
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10064: "The host is down.",
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10065: "The host is unreachable.",
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10066: "Directory not empty.",
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10067: "Too many processes.",
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10068: "User quota exceeded.",
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10069: "Disk quota exceeded.",
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10070: "Stale file handle reference.",
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10071: "Item is remote.",
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10091: "Network subsystem is unavailable.",
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10092: "Winsock.dll version out of range.",
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10093: "Successful WSAStartup not yet performed.",
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10101: "Graceful shutdown in progress.",
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10102: "No more results from WSALookupServiceNext.",
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10103: "Call has been canceled.",
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10104: "Procedure call table is invalid.",
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10105: "Service provider is invalid.",
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10106: "Service provider failed to initialize.",
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10107: "System call failure.",
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10108: "Service not found.",
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10109: "Class type not found.",
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10110: "No more results from WSALookupServiceNext.",
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10111: "Call was canceled.",
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10112: "Database query was refused.",
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11001: "Host not found.",
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11002: "Nonauthoritative host not found.",
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11003: "This is a nonrecoverable error.",
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11004: "Valid name, no data record requested type.",
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11005: "QoS receivers.",
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11006: "QoS senders.",
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11007: "No QoS senders.",
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11008: "QoS no receivers.",
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11009: "QoS request confirmed.",
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11010: "QoS admission error.",
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11011: "QoS policy failure.",
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11012: "QoS bad style.",
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11013: "QoS bad object.",
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11014: "QoS traffic control error.",
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11015: "QoS generic error.",
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11016: "QoS service type error.",
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11017: "QoS flowspec error.",
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11018: "Invalid QoS provider buffer.",
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11019: "Invalid QoS filter style.",
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11020: "Invalid QoS filter style.",
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11021: "Incorrect QoS filter count.",
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11022: "Invalid QoS object length.",
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11023: "Incorrect QoS flow count.",
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11024: "Unrecognized QoS object.",
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11025: "Invalid QoS policy object.",
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11026: "Invalid QoS flow descriptor.",
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11027: "Invalid QoS provider-specific flowspec.",
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11028: "Invalid QoS provider-specific filterspec.",
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11029: "Invalid QoS shape discard mode object.",
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11030: "Invalid QoS shaping rate object.",
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11031: "Reserved policy QoS element type."
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}
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__all__.append("errorTab")
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@ -348,6 +351,9 @@ class socket(_socket.socket):
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if hasattr(os, 'sendfile'):
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def _sendfile_use_sendfile(self, file, offset=0, count=None):
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# Lazy import to improve module import time
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import selectors
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self._check_sendfile_params(file, offset, count)
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sockno = self.fileno()
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try:
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@ -549,20 +555,18 @@ def fromfd(fd, family, type, proto=0):
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return socket(family, type, proto, nfd)
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if hasattr(_socket.socket, "sendmsg"):
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import array
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def send_fds(sock, buffers, fds, flags=0, address=None):
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""" send_fds(sock, buffers, fds[, flags[, address]]) -> integer
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Send the list of file descriptors fds over an AF_UNIX socket.
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"""
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import array
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return sock.sendmsg(buffers, [(_socket.SOL_SOCKET,
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_socket.SCM_RIGHTS, array.array("i", fds))])
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__all__.append("send_fds")
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if hasattr(_socket.socket, "recvmsg"):
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import array
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def recv_fds(sock, bufsize, maxfds, flags=0):
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""" recv_fds(sock, bufsize, maxfds[, flags]) -> (data, list of file
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descriptors, msg_flags, address)
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@ -570,6 +574,8 @@ if hasattr(_socket.socket, "recvmsg"):
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Receive up to maxfds file descriptors returning the message
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data and a list containing the descriptors.
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"""
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import array
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# Array of ints
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fds = array.array("i")
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msg, ancdata, flags, addr = sock.recvmsg(bufsize,
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@ -0,0 +1,2 @@
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Improve import time of :mod:`socket` by lazy importing modules and
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writing :data:`!socket.errorTab` as a constant.
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