This project is a fork of libxmljs. The current version 0.18.1 is based on libxmljs 0.18.7 and libxml 2.9.4.
Libxmljs was originally designed with single-threaded operations in mind. There are no asynchroneous operations for things like parsing XML documents. But even more importantly, since the embedded libxml was configured only for single-threaded use, no other package could build on this to provide multi-threaded operations using libxml. The issue is discussed at length in upstream issue 296.
This package here adds multi-threading support to libxmljs. It does offer a method to asynchroneously parse an XML file using
and it can be used by other packages to provide
more advanced asynchroneous operations.
To do so, the code has to construct a
on the V8 thread and then a
libxmljs::WorkerSentinel on the worker thread.
Both of these are RAII sentinels, so they do some setup in their constructor
and some cleaning up in their destructor.
Getting their lifetime right is important.
When using nan, it's easiest to make the
WorkerParent a member
of the class derived from
and have a
WorkerSentinel variable in the
Execute method of that class.
It is to be hoped that this fork is a temporary solution, and that the original libxmljs project will adapt either this solution or a similar one to become usable in a multi-threaded way. But the corresponding bug report has remained open for too long, and even though there was some very valuable discussion going on, there were also long spans with no activity at all. It is hard to tell when this fork will become obsolete, if ever.
Note that this project makes use of a git submodule for the libxml code,
so if you are building from a git checkout you might have to perform
git submodule update --init before you can do
Below comes the documentation from the original project, with only slight modifications where appropriate.
LibXML bindings for node.js
var libxmljs = ;var xml = '<?xml version="1.0" encoding="UTF-8"?>' +'<root>' +'<child foo="bar">' +'<grandchild baz="fizbuzz">grandchild content</grandchild>' +'</child>' +'<sibling>with content!</sibling>' +'</root>';var xmlDoc = libxmljs;// xpath queriesvar gchild = xmlDoc;console; // prints "grandchild content"var children = xmlDocchildNodes;var child = children0;console; // prints "bar"
- Docs - http://github.com/libxmljs/libxmljs/wiki
- Mailing list - http://groups.google.com/group/libxmljs
API and Examples
Check out the wiki http://github.com/libxmljs/libxmljs/wiki.
See the examples folder.
npm install libxmljs-mt
Make sure you have met the requirements for node-gyp. You do not need to manually install node-gyp; it comes bundled with node.