125 lines
2.8 KiB
JavaScript
125 lines
2.8 KiB
JavaScript
require(__dirname+'/test-helper');
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//http://developer.postgresql.org/pgdocs/postgres/protocol-message-formats.html
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var buffers = {};
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buffers.readyForQuery = function() {
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return new BufferList()
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.add(Buffer('I'))
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.join(true,'Z');
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};
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buffers.authenticationOk = function() {
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return new BufferList()
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.addInt32(0)
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.join(true, 'R');
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};
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buffers.authenticationCleartextPassword = function() {
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return new BufferList()
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.addInt32(3)
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.join(true, 'R');
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};
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buffers.authenticationMD5Password = function() {
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return new BufferList()
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.addInt32(5)
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.add(Buffer([1,2,3,4]))
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.join(true, 'R');
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};
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buffers.parameterStatus = function(name, value) {
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return new BufferList()
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.addCString(name)
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.addCString(value)
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.join(true, 'S');
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};
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buffers.backendKeyData = function(processID, secretKey) {
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return new BufferList()
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.addInt32(processID)
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.addInt32(secretKey)
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.join(true, 'K');
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};
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buffers.commandComplete = function(string) {
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return new BufferList()
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.addCString(string)
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.join(true, 'C');
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};
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buffers.rowDescription = function(fields) {
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fields = fields || [];
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var buf = new BufferList();
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buf.addInt16(fields.length);
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fields.forEach(function(field) {
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buf.addCString(field.name)
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.addInt32(field.tableID || 0)
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.addInt16(field.attributeNumber || 0)
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.addInt32(field.dataTypeID || 0)
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.addInt16(field.dataTypeSize || 0)
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.addInt32(field.typeModifier || 0)
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.addInt16(field.formatCode || 0)
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});
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return buf.join(true, 'T');
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};
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buffers.dataRow = function(columns) {
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columns = columns || [];
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var buf = new BufferList();
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buf.addInt16(columns.length);
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columns.forEach(function(col) {
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if(col == null) {
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buf.addInt32(-1);
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} else {
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var strBuf = new Buffer(col, 'utf8');
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buf.addInt32(strBuf.length);
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buf.add(strBuf);
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}
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});
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return buf.join(true, 'D');
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};
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buffers.error = function(fields) {
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return errorOrNotice(fields).join(true, 'E');
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};
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buffers.notice = function(fields) {
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return errorOrNotice(fields).join(true, 'N');
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};
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var errorOrNotice = function(fields) {
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fields = fields || [];
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var buf = new BufferList();
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fields.forEach(function(field) {
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buf.addChar(field.type);
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buf.addCString(field.value);
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});
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return buf.add(Buffer([0]));//terminator
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}
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buffers.parseComplete = function() {
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return new BufferList().join(true, '1');
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};
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buffers.bindComplete = function() {
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return new BufferList().join(true, '2');
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};
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buffers.notification = function(id, channel, payload) {
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return new BufferList()
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.addInt32(id)
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.addCString(channel)
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.addCString(payload)
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.join(true, 'A')
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};
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buffers.emptyQuery = function() {
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return new BufferList().join(true, 'I');
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};
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buffers.portalSuspended = function() {
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return new BufferList().join(true, 's');
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};
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module.exports = buffers;
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