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'errorMessage' : msg.name if (this._emitMessage) { this.emit('message', msg) } this.emit(eventName, msg) }) } requestSsl() { this.stream.write(serialize.requestSsl()) } startup(config) { this.stream.write(serialize.startup(config)) } cancel(processID, secretKey) { this._send(serialize.cancel(processID, secretKey)) } password(password) { this._send(serialize.password(password)) } sendSASLInitialResponseMessage(mechanism, initialResponse) { this._send(serialize.sendSASLInitialResponseMessage(mechanism, initialResponse)) } sendSCRAMClientFinalMessage(additionalData) { this._send(serialize.sendSCRAMClientFinalMessage(additionalData)) } _send(buffer) { if (!this.stream.writable) { return false } return this.stream.write(buffer) } query(text) { this._send(serialize.query(text)) } // send parse message parse(query) { this._send(serialize.parse(query)) } // send bind message bind(config) { this._send(serialize.bind(config)) } // send execute message execute(config) { this._send(serialize.execute(config)) } flush() { if (this.stream.writable) { this.stream.write(flushBuffer) } } sync() { this._ending = true this._send(syncBuffer) } ref() { this.stream.ref() } unref() { this.stream.unref() } end() { // 0x58 = 'X' this._ending = true if (!this._connecting || !this.stream.writable) { this.stream.end() return } return this.stream.write(endBuffer, () => { this.stream.end() }) } close(msg) { this._send(serialize.close(msg)) } describe(msg) { this._send(serialize.describe(msg)) } sendCopyFromChunk(chunk) { this._send(serialize.copyData(chunk)) } endCopyFrom() { this._send(serialize.copyDone()) } sendCopyFail(msg) { this._send(serialize.copyFail(msg)) } } module.exports = Connection