archive-gh-me/node-postgres
1
0
Fork 0
mirror of https://github.com/brianc/node-postgres.git synced 2025-12-08 20:16:25 +00:00
Code Issues Projects Releases Wiki Activity

Minor speed improvements

Browse Source
This commit is contained in:
Brian Carlson 2013-08-07 12:41:38 -05:00
parent 56b7c4168d
commit b6bca99489
1 changed files with 32 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

51
lib/connection.js
View File

@ -472,8 +472,9 @@ Connection.prototype.parseZ = function(buffer, length) {
return msg;
};
ROW_DESCRIPTION = 'rowDescription';
Connection.prototype.parseT = function(buffer, length) {
var msg = new Message('rowDescription', length);
var msg = new Message(ROW_DESCRIPTION, length);
msg.fieldCount = this.parseInt16(buffer);
var fields = [];
for(var i = 0; i < msg.fieldCount; i++){
@ -483,44 +484,56 @@ Connection.prototype.parseT = function(buffer, length) {
return msg;
};
var Field = function() {
this.name = null;
this.tableID = null;
this.columnID = null;
this.dataTypeID = null;
this.dataTypeSize = null;
this.dataTypeModifier = null;
this.format = null;
};
FORMAT_TEXT = 'text';
FORMAT_BINARY = 'binary';
Connection.prototype.parseField = function(buffer) {
var field = {
name: this.parseCString(buffer),
tableID: this.parseInt32(buffer),
columnID: this.parseInt16(buffer),
dataTypeID: this.parseInt32(buffer),
dataTypeSize: this.parseInt16(buffer),
dataTypeModifier: this.parseInt32(buffer),
format: undefined
};
var field = new Field();
field.name = this.parseCString(buffer);
field.tableID = this.parseInt32(buffer);
field.columnID = this.parseInt16(buffer);
field.dataTypeID = this.parseInt32(buffer);
field.dataTypeSize = this.parseInt16(buffer);
field.dataTypeModifier = this.parseInt32(buffer);
if(this.parseInt16(buffer) === TEXT_MODE) {
this._mode = TEXT_MODE;
field.format = 'text';
field.format = FORMAT_TEXT;
} else {
this._mode = BINARY_MODE;
this.readField = this.readBytes;
field.format = 'binary';
field.format = FORMAT_BINARY;
}
return field;
};
DATA_ROW = 'dataRow';
var DataRowMessage = function(name, length, fieldCount) {
this.name = name;
this.name = DATA_ROW;
this.length = length;
this.fieldCount = fieldCount;
this.fields = [];
}
};
Connection.prototype.parseD = function(buffer, length) {
//extremely hot-path code
Connection.prototype[0x44] = Connection.prototype.parseD = function(buffer, length) {
var fieldCount = this.parseInt16(buffer);
var msg = new DataRowMessage('dataRow', length, fieldCount);
var msg = new DataRowMessage(length, fieldCount);
for(var i = 0; i < fieldCount; i++) {
var value = this._readValue(buffer);
msg.fields.push(value);
msg.fields.push(this._readValue(buffer));
}
return msg;
};
//extremely hot-path code
Connection.prototype._readValue = function(buffer) {
var length = this.parseInt32(buffer);
if(length === -1) return null;