simplock

Simple lock async function with key

Install

$ npm install --save simplock

Arguments

• String = '' : Key to lock
• String = null: Timeout. Default no timeout (milliseconds)
• Function : Callback, execute first parameter for unlock

If the same key is send, the callback is pushed in queue. When you use done() then next function in queue is executed.

Examples

var simplock = require('simplock');

simplock('lock key', 2000, function(done){ // 'lock key' expire in 2seconds

    // async code

    done(); // Execute done when is finish for unlock 'lock key';
})


// Exemple with fs
simplock('file-write-'+path, 2000, function(done){
    fs.writeFile('/path/to/media/'+path, 'Hello world', function(err){
        done(); // 'file-write-'+path is unlocked
    });
});