If you search through the mailing list archive you can see very detailed discussions of why the "setup phase" of node programs should, and do, use synchronous file IO.
This topic has been beat to death, we should get this answer in an FAQ we can link to. -Mikeal On May 15, 2012, at May 15, 201211:30 AM, Martín Ciparelli wrote: > So the question would be: why an async-driven platform uses sync-driven way > to load modules? > > 2012/5/15 Marak Squires <[email protected]> > require() is a sync call. > > If you need an async require ( a require that performs i/o ), you should > check out a plugin system like Broadway ( > https://github.com/flatiron/broadway ) > > This will allow you to require modules with an optional .init and .attach > methods, which can both accept optional callbacks. > > > On Tue, May 15, 2012 at 8:49 AM, Guoliang Cao <[email protected]> wrote: > Hi, > > I'm new to Node.js and wrapping my head around the asynchronous programming > model. A question comes to mind is why 'require' itself does not use > callbacks like below. I believe IO is involved in require and a lot of things > can fail. > > require('http', > function(http){ > // do stuff with http > }, > function(error) { > console.log("Failed to load http"); > }); > > > Thanks, > Guoliang Cao > > -- > Job Board: http://jobs.nodejs.org/ > Posting guidelines: > https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines > You received this message because you are subscribed to the Google > Groups "nodejs" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/nodejs?hl=en?hl=en > > > > -- > -- > Marak Squires > Co-founder and Chief Evangelist > Nodejitsu, Inc. > [email protected] > > > -- > Job Board: http://jobs.nodejs.org/ > Posting guidelines: > https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines > You received this message because you are subscribed to the Google > Groups "nodejs" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/nodejs?hl=en?hl=en > > > -- > Job Board: http://jobs.nodejs.org/ > Posting guidelines: > https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines > You received this message because you are subscribed to the Google > Groups "nodejs" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/nodejs?hl=en?hl=en -- Job Board: http://jobs.nodejs.org/ Posting guidelines: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines You received this message because you are subscribed to the Google Groups "nodejs" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nodejs?hl=en?hl=en
