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node_modules/mysql2/lib/packets/binlog_dump.js

@@ -0,0 +1,33 @@
+'use strict';
+
+// http://dev.mysql.com/doc/internals/en/com-binlog-dump.html#packet-COM_BINLOG_DUMP
+
+const Packet = require('../packets/packet');
+const CommandCodes = require('../constants/commands');
+
+// TODO: add flag to constants
+// 0x01 - BINLOG_DUMP_NON_BLOCK
+// send EOF instead of blocking
+class BinlogDump {
+  constructor(opts) {
+    this.binlogPos = opts.binlogPos || 0;
+    this.serverId = opts.serverId || 0;
+    this.flags = opts.flags || 0;
+    this.filename = opts.filename || '';
+  }
+
+  toPacket() {
+    const length = 15 + Buffer.byteLength(this.filename, 'utf8'); // TODO: should be ascii?
+    const buffer = Buffer.allocUnsafe(length);
+    const packet = new Packet(0, buffer, 0, length);
+    packet.offset = 4;
+    packet.writeInt8(CommandCodes.BINLOG_DUMP);
+    packet.writeInt32(this.binlogPos);
+    packet.writeInt16(this.flags);
+    packet.writeInt32(this.serverId);
+    packet.writeString(this.filename);
+    return packet;
+  }
+}
+
+module.exports = BinlogDump;