astitcher commented on a change in pull request #310:
URL: https://github.com/apache/qpid-proton/pull/310#discussion_r618556498
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File path: cpp/src/sender.cpp
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@@ -60,14 +61,20 @@ class target sender::target() const {
}
namespace {
-// TODO: revisit if thread safety required
-uint64_t tag_counter = 0;
+std::atomic<uint64_t> tag_counter(0);
Review comment:
To be clear if we can make the tag counter scoped to the connection or
lower then we don't need any thread synchronisation at all. This is because it
is an underlying assumption in proton that a connection can only be processed
on a single thread at a time.
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