91 строка
2.4 KiB
JavaScript
91 строка
2.4 KiB
JavaScript
var DEBUG = false;
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var clientID = "javascript";
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var key = "theme:button";
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var nsICache = Components.interfaces.nsICache;
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function getCacheService()
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{
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var nsCacheService = Components.classes["@mozilla.org/network/cache-service;1"];
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var service = nsCacheService.getService(Components.interfaces.nsICacheService);
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return service;
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}
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function createCacheSession(clientID, storagePolicy, streamable)
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{
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var service = getCacheService();
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var session = service.createSession(clientID, storagePolicy, streamable);
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return session;
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}
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function openCacheEntry(mode)
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{
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var session = createCacheSession(clientID, nsICache.STORE_ON_DISK, true);
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var entry = session.openCacheEntry(key, mode);
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return entry;
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}
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function dumpLeaks()
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{
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var leakDetector = Components.classes["@mozilla.org/xpcom/leakdetector;1"].getService(Components.interfaces.nsILeakDetector);
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leakDetector.dumpLeaks();
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}
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function wrapInputStream(input)
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{
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var nsIScriptableInputStream = Components.interfaces.nsIScriptableInputStream;
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var factory = Components.classes["@mozilla.org/scriptableinputstream;1"];
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var wrapper = factory.createInstance(nsIScriptableInputStream);
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wrapper.init(input);
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return wrapper;
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}
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function test()
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{
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var outputEntry = openCacheEntry(nsICache.ACCESS_WRITE);
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var output = outputEntry.transport.openOutputStream(0, -1, 0);
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if (output.write("foo", 3) == 3)
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print("disk cache write works!");
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else
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print("disk cache write broken!");
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// store some metadata.
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outputEntry.setMetaDataElement("size", "3");
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output.close();
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outputEntry.markValid();
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outputEntry.close();
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var inputEntry = openCacheEntry(nsICache.ACCESS_READ);
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var input = wrapInputStream(inputEntry.transport.openInputStream(0, -1, 0));
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if (input.read(input.available()) == "foo")
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print("disk cache read works!");
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else
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print("disk cache read broken!");
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if (inputEntry.getMetaDataElement("size") == "3")
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print("disk cache metadata works!");
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else
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print("disk cache metadata broken!");
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input.close();
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inputEntry.close();
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}
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function doom()
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{
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var doomedEntry = openCacheEntry(nsICache.ACCESS_READ_WRITE);
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doomedEntry.doom();
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doomedEntry.close();
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}
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if (DEBUG) {
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getCacheService();
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print("cache service loaded.");
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} else {
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print("running disk cache test.");
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test();
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print("disk cache test complete.");
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}
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