| <!doctype html> |
| <html> |
| <head> |
| |
| <style> |
| pre { padding: 5px; border: 1px solid black; } |
| </style> |
| |
| <script> |
| var db; |
| |
| try { |
| if (window.openDatabase) { |
| db = openDatabase("StressTest1", "1.0", "Database Stress Test", 200000); |
| if (!db) |
| alert("Failed to open the database on disk. This is probably because the version was bad or there is not enough space left in this domain's quota"); |
| } else |
| alert("Couldn't open the database."); |
| } catch(err) { } |
| |
| var highestId = 0; |
| var allData = new Array(); |
| |
| function newData() |
| { |
| var id = ++highestId; |
| allData.push(id); |
| db.transaction(function (tx) |
| { |
| tx.executeSql("INSERT INTO FillerData (id, filler) VALUES (?, randomblob(1024))", [id]); |
| }); |
| } |
| |
| function testOpen() |
| { |
| for (var i = 0; i < 4; i++) { |
| newData(); |
| } |
| |
| setTimeout("testClose();", 0); |
| } |
| |
| function testClose() |
| { |
| db.transaction(function(tx) |
| { |
| for (var i = 0; i < allData.length; i++) |
| tx.executeSql("DELETE FROM FillerData WHERE id = ?", [allData[i]]); |
| |
| allData = new Array(); |
| }); |
| setTimeout("testOpen();", 0); |
| } |
| |
| function updateTransactionCount() |
| { |
| document.getElementById("transactionCount").innerHTML = "Current Transaction Count: " + highestId; |
| setTimeout("updateTransactionCount();", 1000); |
| } |
| |
| function loaded() |
| { |
| db.transaction(function(tx) { |
| tx.executeSql("SELECT COUNT(*) FROM FillerData", [], function(result) { }, function(tx, error) { |
| tx.executeSql("CREATE TABLE FillerData (id REAL UNIQUE, filler)", [], function(result) { |
| }); |
| }); |
| }); |
| |
| setTimeout("testOpen();", 0); |
| setTimeout("updateTransactionCount();", 1000); |
| } |
| |
| addEventListener('load', loaded, false); |
| </script> |
| </head> |
| |
| <body> |
| This test stresses the database threading code by constantly opening transactions to the test database at a fast rate.<br> |
| See radar 5729446 for more details.<br> |
| <pre id="transactionCount">Current Transaction Count: 0</pre> |
| |
| </body> |
| </html> |
