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Backed out changeset 95c53fc40a19 (bug 1198095) for being a possible cause of test_fileapi.html bustage CLOSED TREE

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This commit is contained in:
Wes Kocher 2015-12-04 15:21:18 -08:00
parent 5f7d13a0d0
commit a02339b6be
4 changed files with 7 additions and 119 deletions
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21
dom/base/nsDOMFileReader.cpp
View File

@ -275,6 +275,7 @@ nsDOMFileReader::DoOnLoadEnd(nsresult aStatus,
nsAString& aSuccessEvent,
nsAString& aTerminationEvent)
{
// Make sure we drop all the objects that could hold files open now.
nsCOMPtr<nsIAsyncInputStream> stream;
mAsyncStream.swap(stream);
@ -282,34 +283,25 @@ nsDOMFileReader::DoOnLoadEnd(nsresult aStatus,
RefPtr<Blob> blob;
mBlob.swap(blob);
aSuccessEvent = NS_LITERAL_STRING(LOAD_STR);
aTerminationEvent = NS_LITERAL_STRING(LOADEND_STR);
// Clear out the data if necessary
if (NS_FAILED(aStatus)) {
FreeFileData();
return NS_OK;
}
// In case we read a different number of bytes, we can assume that the
// underlying storage has changed. We should not continue.
if (mDataLen != mTotal) {
DispatchError(NS_ERROR_FAILURE, aTerminationEvent);
FreeFileData();
return NS_ERROR_FAILURE;
}
aSuccessEvent = NS_LITERAL_STRING(LOAD_STR);
aTerminationEvent = NS_LITERAL_STRING(LOADEND_STR);
nsresult rv = NS_OK;
switch (mDataFormat) {
case FILE_AS_ARRAYBUFFER: {
AutoJSAPI jsapi;
if (NS_WARN_IF(!jsapi.Init(mozilla::DOMEventTargetHelper::GetParentObject()))) {
FreeFileData();
return NS_ERROR_FAILURE;
}
RootResultArrayBuffer();
mResultArrayBuffer = JS_NewArrayBufferWithContents(jsapi.cx(), mDataLen, mFileData);
mResultArrayBuffer = JS_NewArrayBufferWithContents(jsapi.cx(), mTotal, mFileData);
if (!mResultArrayBuffer) {
JS_ClearPendingException(jsapi.cx());
rv = NS_ERROR_OUT_OF_MEMORY;
@ -351,7 +343,8 @@ nsDOMFileReader::DoReadData(nsIAsyncInputStream* aStream, uint64_t aCount)
if (mDataFormat == FILE_AS_BINARY) {
//Continuously update our binary string as data comes in
uint32_t oldLen = mResult.Length();
NS_ASSERTION(mResult.Length() == mDataLen, "unexpected mResult length");
NS_ASSERTION(mResult.Length() == mDataLen,
"unexpected mResult length");
if (uint64_t(oldLen) + aCount > UINT32_MAX)
return NS_ERROR_OUT_OF_MEMORY;
char16_t *buf = nullptr;

26
dom/base/test/file_bug1198095.js
View File

@ -1,26 +0,0 @@
var { classes: Cc, interfaces: Ci, utils: Cu } = Components;
Cu.importGlobalProperties(["File"]);
function createFileWithData(message) {
var dirSvc = Cc["@mozilla.org/file/directory_service;1"].getService(Ci.nsIProperties);
var testFile = dirSvc.get("ProfD", Ci.nsIFile);
testFile.append("fileAPItestfileBug1198095");
var outStream = Cc["@mozilla.org/network/file-output-stream;1"].createInstance(Ci.nsIFileOutputStream);
outStream.init(testFile, 0x02 | 0x08 | 0x20, // write, create, truncate
0666, 0);
outStream.write(message, message.length);
outStream.close();
var domFile = new File(testFile);
return domFile;
}
addMessageListener("file.open", function (message) {
sendAsyncMessage("file.opened", createFileWithData(message));
});
addMessageListener("file.modify", function (message) {
sendAsyncMessage("file.modified", createFileWithData(message));
});

2
dom/base/test/mochitest.ini
View File

@ -257,7 +257,6 @@ support-files =
referrer_change_server.sjs
file_change_policy_redirect.html
empty_worker.js
file_bug1198095.js
[test_anonymousContent_api.html]
[test_anonymousContent_append_after_reflow.html]
@ -861,4 +860,3 @@ skip-if = e10s || os != 'linux' || buildapp != 'browser'
skip-if = buildapp == 'b2g' #no ssl support
[test_document.all_iteration.html]
[test_performance_translate.html]
[test_bug1198095.html]

77
dom/base/test/test_bug1198095.html
View File

@ -1,77 +0,0 @@
<!DOCTYPE HTML>
<html>
<head>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1198095
-->
<title>Test for Bug 1198095</title>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1198095">Mozilla Bug 1198095</a>
<pre id="test">
<script class="testbody" type="text/javascript;version=1.7">
var fileData1 = '1234567890';
var fileData2 = '43210';
var r, firstBlob;
var openerURL = SimpleTest.getTestFileURL("file_bug1198095.js");
var opener = SpecialPowers.loadChromeScript(openerURL);
opener.addMessageListener("file.opened", onFileOpened);
opener.addMessageListener("file.modified", onFileModified);
opener.sendAsyncMessage("file.open", fileData1);
function onLoadEnd1(e) {
e.target.removeEventListener('loadend', onLoadEnd1);
is(e.target, r, "Target and r are ok");
ok(e.target.readyState, FileReader.DONE, "The file has been read.");
ok(e.target.result instanceof ArrayBuffer, "The result is an ArrayBuffer");
var view = new Uint8Array(e.target.result);
is(view.length, fileData1.length, "File data length matches");
for (var i = 0; i < fileData1.length; ++i) {
is(String.fromCharCode(view[i]), fileData1[i], "Byte matches");
}
opener.sendAsyncMessage("file.modify", fileData2);
}
function onLoadEnd2(e) {
e.target.removeEventListener('loadend', onLoadEnd2);
ok(false, "This method should not be called - loadEnd2!");
}
function onError1(e) {
ok(false, "This method should not be called - error1!");
}
function onError2(e) {
e.target.removeEventListener('error', onError2);
SimpleTest.finish();
}
function onFileOpened(blob) {
firstBlob = blob;
r = new FileReader();
r.addEventListener("loadend", onLoadEnd1, false);
r.addEventListener("error", onError1, false);
r.readAsArrayBuffer(firstBlob);
}
function onFileModified(blob) {
r.addEventListener("loadend", onLoadEnd2, false);
r.removeEventListener('error', onError1);
r.addEventListener("error", onError2, false);
r.readAsArrayBuffer(firstBlob);
}
SimpleTest.waitForExplicitFinish();
</script>
</pre>
</body> </html>