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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 14:29:10 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 14:29:10 +0000
commit2aa4a82499d4becd2284cdb482213d541b8804dd (patch)
treeb80bf8bf13c3766139fbacc530efd0dd9d54394c /js/xpconnect/src/XPCJSThreadPool.h
parentInitial commit. (diff)
downloadfirefox-2aa4a82499d4becd2284cdb482213d541b8804dd.tar.xz
firefox-2aa4a82499d4becd2284cdb482213d541b8804dd.zip
Adding upstream version 86.0.1.upstream/86.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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-rw-r--r--js/xpconnect/src/XPCJSThreadPool.h55
1 files changed, 55 insertions, 0 deletions
diff --git a/js/xpconnect/src/XPCJSThreadPool.h b/js/xpconnect/src/XPCJSThreadPool.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/. */
+
+#ifndef mozilla_JSThreadPool_h
+#define mozilla_JSThreadPool_h
+
+#include "mozilla/Unused.h"
+#include "nsIThreadPool.h"
+#include "js/Utility.h"
+#include "js/UniquePtr.h"
+
+namespace mozilla {
+/*
+ * Since XPCOM thread pools dispatch nsIRunnable*, we want a way to take the
+ * specific job that JS wants to dispatch offthread, and run it via an
+ * nsIRunnable(). RunnableTasks should self-destroy.
+ */
+class HelperThreadTaskHandler : public Runnable {
+ public:
+ NS_IMETHOD Run() override {
+ mOffThreadTask->runTask();
+ mOffThreadTask.reset();
+ return NS_OK;
+ }
+ explicit HelperThreadTaskHandler(js::UniquePtr<RunnableTask> task)
+ : Runnable("HelperThreadTaskHandler"), mOffThreadTask(std::move(task)) {}
+
+ private:
+ ~HelperThreadTaskHandler() = default;
+ js::UniquePtr<RunnableTask> mOffThreadTask;
+};
+
+/*
+ * HelperThreadPool is a thread pool infrastructure for JS offthread tasks. It
+ * holds the actual instance of a thread pool that we instantiate. The intention
+ * is to have a way to manage some of the things GlobalHelperThreadState does
+ * independently of nsThreadPool.
+ */
+class HelperThreadPool {
+ public:
+ nsresult Dispatch(already_AddRefed<HelperThreadTaskHandler> aRunnable);
+ void Shutdown();
+ HelperThreadPool();
+ virtual ~HelperThreadPool() = default;
+
+ private:
+ RefPtr<nsIThreadPool> mPool;
+};
+
+} // namespace mozilla
+
+#endif