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@@ -38,8 +38,8 @@ private:
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static void cancelCallback(uv_async_t *async);
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private:
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uv_async_t *notify_async = nullptr;
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uv_async_t *destruct_async = nullptr;
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uv_async_t *notifyAsync = nullptr;
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uv_async_t *destructAsync = nullptr;
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Callback callback;
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std::shared_ptr<const Response> response;
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@@ -18,12 +18,12 @@ Request::Request(const Resource &resource_, uv_loop_t *loop, Callback callback_)
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// When there is no loop supplied (== nullptr), the callback will be fired in an arbitrary
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// thread (the thread notify() is called from) rather than kicking back to the calling thread.
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if (loop) {
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notify_async = new uv_async_t;
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notify_async->data = nullptr;
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notifyAsync = new uv_async_t;
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notifyAsync->data = nullptr;
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#if UV_VERSION_MAJOR == 0 && UV_VERSION_MINOR <= 10
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uv_async_init(loop, notify_async, [](uv_async_t *async, int) { notifyCallback(async); });
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uv_async_init(loop, notifyAsync, [](uv_async_t *async, int) { notifyCallback(async); });
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#else
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uv_async_init(loop, notify_async, notifyCallback);
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uv_async_init(loop, notifyAsync, notifyCallback);
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#endif
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}
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}
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@@ -34,7 +34,7 @@ void Request::notifyCallback(uv_async_t *async) {
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assert(request);
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MBGL_VERIFY_THREAD(request->tid)
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if (!request->destruct_async) {
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if (!request->destructAsync) {
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// Call the callback with the result data. This will also delete this object. We haven't
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// created a cancel request, so this is safe since it won't be accessed in the future.
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// It is up to the user to not call cancel() on this Request object after the response was
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@@ -64,10 +64,10 @@ Request::~Request() {
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void Request::notify(const std::shared_ptr<const Response> &response_) {
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response = response_;
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assert(response);
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if (notify_async) {
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assert(!notify_async->data);
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notify_async->data = this;
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uv_async_send(notify_async);
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if (notifyAsync) {
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assert(!notifyAsync->data);
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notifyAsync->data = this;
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uv_async_send(notifyAsync);
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} else {
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// This request is not cancelable. This means that the callback will be executed in an
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// arbitrary thread (== FileSource thread).
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@@ -77,19 +77,19 @@ void Request::notify(const std::shared_ptr<const Response> &response_) {
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void Request::cancel() {
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MBGL_VERIFY_THREAD(tid)
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assert(notify_async);
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assert(!destruct_async);
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destruct_async = new uv_async_t;
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destruct_async->data = nullptr;
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assert(notifyAsync);
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assert(!destructAsync);
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destructAsync = new uv_async_t;
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destructAsync->data = nullptr;
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#if UV_VERSION_MAJOR == 0 && UV_VERSION_MINOR <= 10
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uv_async_init(notify_async->loop, destruct_async, [](uv_async_t *async, int) { cancelCallback(async); });
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uv_async_init(notifyAsync->loop, destructAsync, [](uv_async_t *async, int) { cancelCallback(async); });
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#else
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uv_async_init(notify_async->loop, destruct_async, cancelCallback);
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uv_async_init(notifyAsync->loop, destructAsync, cancelCallback);
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#endif
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}
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void Request::cancelCallback(uv_async_t *async) {
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// The destruct_async will be invoked *after* the notify_async callback has already run.
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// The destructAsync will be invoked *after* the notifyAsync callback has already run.
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auto request = reinterpret_cast<Request *>(async->data);
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uv::close(async);
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assert(request);
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@@ -100,20 +100,20 @@ void Request::cancelCallback(uv_async_t *async) {
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// This gets called from the FileSource thread, and will only ever be invoked after cancel() was called
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// in the original requesting thread.
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void Request::destruct() {
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assert(notify_async);
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assert(destruct_async);
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assert(notifyAsync);
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assert(destructAsync);
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if (!notify_async->data) {
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if (!notifyAsync->data) {
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// The async hasn't been triggered yet, but we need to so that it'll close the handle. The
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// callback will not delete this object since we have a destruct_async handle as well.
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notify_async->data = this;
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uv_async_send(notify_async);
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// callback will not delete this object since we have a destructAsync handle as well.
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notifyAsync->data = this;
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uv_async_send(notifyAsync);
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}
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// This will finally destruct this object.
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assert(!destruct_async->data);
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destruct_async->data = this;
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uv_async_send(destruct_async);
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assert(!destructAsync->data);
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destructAsync->data = this;
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uv_async_send(destructAsync);
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}
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}
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