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ee8f43208a
When writing to alt-data output stream fails for whatever reason, we now try to truncate alternative data and keep the original data instead of dooming the whole entry. The patch also changes how is the predicted size passed to the cache. Instead of a dedicated method it's now an argument of openOutputStream and openAlternativeOutputStream methods which fail in case the entry would exceed the allowed limit.
78 lines
1.7 KiB
JavaScript
78 lines
1.7 KiB
JavaScript
function gen_1MiB()
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{
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var i;
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var data="x";
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for (i=0 ; i < 20 ; i++)
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data+=data;
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return data;
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}
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function write_and_check(str, data, len)
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{
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var written = str.write(data, len);
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if (written != len) {
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do_throw("str.write has not written all data!\n" +
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" Expected: " + len + "\n" +
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" Actual: " + written + "\n");
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}
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}
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function make_input_stream_scriptable(input) {
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var wrapper = Cc["@mozilla.org/scriptableinputstream;1"].
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createInstance(Ci.nsIScriptableInputStream);
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wrapper.init(input);
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return wrapper;
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}
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function write_datafile(status, entry)
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{
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Assert.equal(status, Cr.NS_OK);
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var data = gen_1MiB();
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var os = entry.openOutputStream(0, data.length);
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write_and_check(os, data, data.length);
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os.close();
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entry.close();
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// open, doom, append, read
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asyncOpenCacheEntry("http://data/",
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"disk", Ci.nsICacheStorage.OPEN_NORMALLY, null,
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test_read_after_doom);
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}
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function test_read_after_doom(status, entry)
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{
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Assert.equal(status, Cr.NS_OK);
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var data = gen_1MiB();
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var os = entry.openOutputStream(entry.dataSize, data.length);
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entry.asyncDoom(null);
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write_and_check(os, data, data.length);
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os.close();
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var is = entry.openInputStream(0);
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pumpReadStream(is, function(read) {
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Assert.equal(read.length, 2*1024*1024);
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is.close();
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entry.close();
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do_test_finished();
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});
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}
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function run_test() {
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do_get_profile();
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// clear the cache
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evict_cache_entries();
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asyncOpenCacheEntry("http://data/",
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"disk", Ci.nsICacheStorage.OPEN_NORMALLY, null,
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write_datafile);
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do_test_pending();
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}
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