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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /image/ShutdownTracker.cpp
parentInitial commit. (diff)
downloadfirefox-upstream/124.0.1.tar.xz
firefox-upstream/124.0.1.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--image/ShutdownTracker.cpp68
1 files changed, 68 insertions, 0 deletions
diff --git a/image/ShutdownTracker.cpp b/image/ShutdownTracker.cpp
new file mode 100644
index 0000000000..4eef66e52e
--- /dev/null
+++ b/image/ShutdownTracker.cpp
@@ -0,0 +1,68 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "ShutdownTracker.h"
+
+#include "mozilla/Services.h"
+#include "nsIObserver.h"
+#include "nsIObserverService.h"
+
+namespace mozilla {
+namespace image {
+
+class ShutdownTrackerImpl;
+
+///////////////////////////////////////////////////////////////////////////////
+// Static Data
+///////////////////////////////////////////////////////////////////////////////
+
+// Whether we've observed shutdown starting yet.
+static bool sShutdownHasStarted = false;
+
+///////////////////////////////////////////////////////////////////////////////
+// Implementation
+///////////////////////////////////////////////////////////////////////////////
+
+struct ShutdownObserver : public nsIObserver {
+ NS_DECL_ISUPPORTS
+
+ NS_IMETHOD Observe(nsISupports*, const char* aTopic,
+ const char16_t*) override {
+ if (strcmp(aTopic, "xpcom-will-shutdown") != 0) {
+ return NS_OK;
+ }
+
+ nsCOMPtr<nsIObserverService> os = services::GetObserverService();
+ if (os) {
+ os->RemoveObserver(this, "xpcom-will-shutdown");
+ }
+
+ sShutdownHasStarted = true;
+ return NS_OK;
+ }
+
+ private:
+ virtual ~ShutdownObserver() {}
+};
+
+NS_IMPL_ISUPPORTS(ShutdownObserver, nsIObserver)
+
+///////////////////////////////////////////////////////////////////////////////
+// Public API
+///////////////////////////////////////////////////////////////////////////////
+
+/* static */
+void ShutdownTracker::Initialize() {
+ nsCOMPtr<nsIObserverService> os = services::GetObserverService();
+ if (os) {
+ os->AddObserver(new ShutdownObserver, "xpcom-will-shutdown", false);
+ }
+}
+
+/* static */
+bool ShutdownTracker::ShutdownHasStarted() { return sShutdownHasStarted; }
+
+} // namespace image
+} // namespace mozilla