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[network] BackgroundFileSaver cleanup.

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This commit is contained in:
Randell Jesup 2022-02-10 22:51:15 +00:00 • committed by roytam1
commit 562b04e5c0
1 changed files with 16 additions and 7 deletions
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23
netwerk/base/BackgroundFileSaver.cpp
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@ -247,7 +247,8 @@ BackgroundFileSaver::EnableSha256()
nsresult rv;
nsCOMPtr<nsISupports> nssDummy = do_GetService("@mozilla.org/psm;1", &rv);
NS_ENSURE_SUCCESS(rv, rv);
mSha256Enabled = true;
MutexAutoLock lock(mLock);
mSha256Enabled = true; // this will be read by the worker thread
return NS_OK;
}
@ -273,6 +274,7 @@ BackgroundFileSaver::EnableSignatureInfo()
nsresult rv;
nsCOMPtr<nsISupports> nssDummy = do_GetService("@mozilla.org/psm;1", &rv);
NS_ENSURE_SUCCESS(rv, rv);
MutexAutoLock lock(mLock);
mSignatureInfoEnabled = true;
return NS_OK;
}
@ -386,9 +388,17 @@ BackgroundFileSaver::ProcessAttention()
// If mAsyncCopyContext is not null, we interrupt the copy and re-enter
// through AsyncCopyCallback. This allows us to check if, for instance, we
// should rename the target file. We will then restart the copy if needed.
if (mAsyncCopyContext) {
NS_CancelAsyncCopy(mAsyncCopyContext, NS_ERROR_ABORT);
return NS_OK;
// mAsyncCopyContext is only written on the worker thread (which we are on)
MOZ_ASSERT(!NS_IsMainThread());
{
// Even though we're the only thread that writes this, we have to take the
// lock
MutexAutoLock lock(mLock);
if (mAsyncCopyContext) {
NS_CancelAsyncCopy(mAsyncCopyContext, NS_ERROR_ABORT);
return NS_OK;
}
}
// Use the current shared state to determine the next operation to execute.
rv = ProcessStateChange();
@ -661,12 +671,11 @@ BackgroundFileSaver::CheckCompletion()
{
nsresult rv;
MOZ_ASSERT(!mAsyncCopyContext,
"Should not be copying when checking completion conditions.");
bool failed = true;
{
MutexAutoLock lock(mLock);
MOZ_ASSERT(!mAsyncCopyContext,
"Should not be copying when checking completion conditions.");
if (mComplete) {
return true;