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/proc/self/root/proc/4/root/var/runtime/node_modules/@aws-sdk/node_modules/aws-crt/lib/common

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io.ts4.6 KB · 173 lines
/* * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. * SPDX-License-Identifier: Apache-2.0. */ /** * * A module containing a grab bag of support for core network I/O functionality, including sockets, TLS, DNS, logging, * error handling, streams, and connection -> thread mapping. * * Categories include: * - Network: socket configuration * - TLS: tls configuration * - Logging: logging controls and configuration * - IO: everything else * * @packageDocumentation * @module io */ /** * TLS Version * * @category TLS */export enum TlsVersion {    SSLv3 = 0,    TLSv1 = 1,    TLSv1_1 = 2,    TLSv1_2 = 3,    TLSv1_3 = 4,    Default = 128,} /** * @category Network */export enum SocketType {    /**     * A streaming socket sends reliable messages over a two-way connection.     * This means TCP when used with {@link SocketDomain.IPV4}/{@link SocketDomain.IPV6},     * and Unix domain sockets when used with {@link SocketDomain.LOCAL }      */    STREAM = 0,    /**     * A datagram socket is connectionless and sends unreliable messages.     * This means UDP when used with {@link SocketDomain.IPV4}/{@link SocketDomain.IPV6}.     * {@link SocketDomain.LOCAL} is not compatible with {@link DGRAM}     */    DGRAM = 1,} /** * @category Network */export enum SocketDomain {    /** IPv4 sockets */    IPV4 = 0,     /** IPv6 sockets */    IPV6 = 1,     /** UNIX domain socket/Windows named pipes */    LOCAL = 2,} /** * The amount of detail that will be logged * @category Logging */export enum LogLevel {    /** No logging whatsoever. */    NONE = 0,    /** Only fatals. In practice, this will not do much, as the process will log and then crash (intentionally) if a fatal condition occurs */    FATAL = 1,    /** Only errors */    ERROR = 2,    /** Only warnings and errors */    WARN = 3,    /** Information about connection/stream creation/destruction events */    INFO = 4,    /** Enough information to debug the chain of events a given network connection encounters */    DEBUG = 5,    /** Everything. Only use this if you really need to know EVERY single call */    TRACE = 6} let logLevel : LogLevel = LogLevel.NONE; /** * Sets the amount of detail that will be logged * @param level - maximum level of logging detail.  Log invocations at a higher level of detail will be ignored. * * @category Logging */export function setLogLevel(level: LogLevel) {    logLevel = level;} /* * The logging API is exported to library-internal, but stays private beyond the package boundary, so the following API * decisions are not binding. */ function log(level: LogLevel, subject: string, logLine: string) {    if (logLevel < level) {        return;    }     let currentTime = new Date().toISOString();    console.log(`[${LogLevel[level]}] [${currentTime}] [${subject}] - ${logLine}`);}  export function logFatal(subject: string, logLine: string) {    log(LogLevel.FATAL, subject, logLine);} export function logError(subject: string, logLine: string) {    log(LogLevel.ERROR, subject, logLine);} export function logWarn(subject: string, logLine: string) {    log(LogLevel.WARN, subject, logLine);} export function logInfo(subject: string, logLine: string) {    log(LogLevel.INFO, subject, logLine);} export function logDebug(subject: string, logLine: string) {    log(LogLevel.DEBUG, subject, logLine);} export function logTrace(subject: string, logLine: string) {    log(LogLevel.TRACE, subject, logLine);} export type LogLineGenerator = () => string; function flog(level: LogLevel, subject: string, logLineGenerator: LogLineGenerator) {    if (logLevel < level) {        return;    }     let currentTime = new Date().toISOString();    console.log(`[${LogLevel[level]}] [${currentTime}] [${subject}] - ${logLineGenerator()}`);} export function flogFatal(subject: string, logLineGenerator: LogLineGenerator) {    flog(LogLevel.FATAL, subject, logLineGenerator);} export function flogError(subject: string, logLineGenerator: LogLineGenerator) {    flog(LogLevel.ERROR, subject, logLineGenerator);} export function flogWarn(subject: string, logLineGenerator: LogLineGenerator) {    flog(LogLevel.WARN, subject, logLineGenerator);} export function flogInfo(subject: string, logLineGenerator: LogLineGenerator) {    flog(LogLevel.INFO, subject, logLineGenerator);} export function flogDebug(subject: string, logLineGenerator: LogLineGenerator) {    flog(LogLevel.DEBUG, subject, logLineGenerator);} export function flogTrace(subject: string, logLineGenerator: LogLineGenerator) {    flog(LogLevel.TRACE, subject, logLineGenerator);}