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concurrency examples

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This commit is contained in:
Luciano Ramalho
2015-02-02 14:07:35 -02:00
parent ab6ce5b6a4
commit 70163d2deb
13 changed files with 131 additions and 56 deletions
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18
concurrency/charfinder/charfinder.html
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@@ -7,20 +7,21 @@
//(function() {
var BASE_URL = 'http://127.0.0.1:8888/chars';
var RESULTS_PER_REQUEST = 10;
var REQUEST_DELAY = 1000; // in milliseconds
var REQUEST_DELAY = 100; // in milliseconds
var httpRequest = new XMLHttpRequest();
httpRequest.onreadystatechange = processResponse;
function requestMaker(start) {
var makeRequest = function (event) {
var query = document.getElementById('queryField').value;
var limit = RESULTS_PER_REQUEST;
httpRequest.open('GET', BASE_URL+'?query='+query+'&limit='+limit);
var stop = start + RESULTS_PER_REQUEST;
var params = '?query='+query+'&start='+start+'&stop='+stop;
httpRequest.open('GET', BASE_URL+params);
httpRequest.send();
document.getElementById('message').textContent = 'Query: ' + query;
var table = document.getElementById('results');
var tr;
while (tr = table.lastChild) table.removeChild(tr);
if (start == 0) while (tr = table.lastChild) table.removeChild(tr);
return false; // don't submit form
}
return makeRequest;
@@ -104,7 +105,7 @@
var table = document.getElementById('results');
var tr;
var characters = getSymbols(results.chars);
for (var i=results.start; i < results.stop; i++) {
for (var i=0; i < characters.length; i++) {
ch = characters[i];
if (ch == '\n') continue;
if (ch == '\x00') break;
@@ -116,9 +117,10 @@
tr.cells[1].appendChild(document.createTextNode(ch));
tr.id = hexCode;
table.appendChild(tr);
if (results.stop < results.total) {
setTimeout(requestMaker(results.stop)(), REQUEST_DELAY);
}
}
// setTimeout(getDescriptions, REQUEST_DELAY/2)
if (results.stop < results.total) {
setTimeout(requestMaker(results.stop), REQUEST_DELAY);
}
}
window.onload = function() {