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authorMoonchild <moonchild@palemoon.org>2020-10-23 08:10:01 +0000
committerMoonchild <moonchild@palemoon.org>2020-10-23 08:10:01 +0000
commit28119b040d73e1e2c70ed18342a1eeca3c847293 (patch)
tree9c34e8e81f45e604de1cb14c21c40335dd906dac /netwerk/base/nsStreamLoader.h
parent3b224b2b26a553e575ebee805e3cc74c8f35e4b3 (diff)
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[netwerk] Make nsIncrementalStreamLoader's GetNumBytesRead threadsafe.
This prevents a potential race and simplifies the code a bit by keeping the bytes read separate instead of using mData, which is modified from another thread from OnDataAvailable. Relaxed atomics are fine for these, since they don't guard any memory.
Diffstat (limited to 'netwerk/base/nsStreamLoader.h')
-rw-r--r--netwerk/base/nsStreamLoader.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/netwerk/base/nsStreamLoader.h b/netwerk/base/nsStreamLoader.h
index 671fc441f..b611a1aed 100644
--- a/netwerk/base/nsStreamLoader.h
+++ b/netwerk/base/nsStreamLoader.h
@@ -47,6 +47,8 @@ protected:
nsCOMPtr<nsIRequest> mRequest;
nsCOMPtr<nsIRequestObserver> mRequestObserver;
+ mozilla::Atomic<uint32_t, mozilla::Relaxed> mBytesRead;
+
// Buffer to accumulate incoming data. We preallocate if contentSize is
// available.
mozilla::Vector<uint8_t, 0> mData;