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118 lines
5.1 KiB
C++
118 lines
5.1 KiB
C++
// Copyright (c) 2016 Marshall A. Greenblatt. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the name Chromium Embedded
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// Framework nor the names of its contributors may be used to endorse
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// or promote products derived from this software without specific prior
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// written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// ---------------------------------------------------------------------------
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//
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// The contents of this file must follow a specific format in order to
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// support the CEF translator tool. See the translator.README.txt file in the
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// tools directory for more information.
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//
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#ifndef CEF_INCLUDE_CEF_THREAD_H_
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#define CEF_INCLUDE_CEF_THREAD_H_
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#pragma once
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#include "include/cef_task.h"
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#include "include/internal/cef_thread_internal.h"
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///
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/// A simple thread abstraction that establishes a message loop on a new thread.
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/// The consumer uses CefTaskRunner to execute code on the thread's message
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/// loop. The thread is terminated when the CefThread object is destroyed or
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/// Stop() is called. All pending tasks queued on the thread's message loop will
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/// run to completion before the thread is terminated. CreateThread() can be
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/// called on any valid CEF thread in either the browser or render process. This
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/// class should only be used for tasks that require a dedicated thread. In most
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/// cases you can post tasks to an existing CEF thread instead of creating a new
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/// one; see cef_task.h for details.
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///
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/*--cef(source=library)--*/
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class CefThread : public CefBaseRefCounted {
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public:
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///
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/// Create and start a new thread. This method does not block waiting for the
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/// thread to run initialization. |display_name| is the name that will be used
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/// to identify the thread. |priority| is the thread execution priority.
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/// |message_loop_type| indicates the set of asynchronous events that the
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/// thread can process. If |stoppable| is true the thread will stopped and
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/// joined on destruction or when Stop() is called; otherwise, the thread
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/// cannot be stopped and will be leaked on shutdown. On Windows the
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/// |com_init_mode| value specifies how COM will be initialized for the
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/// thread. If |com_init_mode| is set to COM_INIT_MODE_STA then
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/// |message_loop_type| must be set to ML_TYPE_UI.
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///
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/*--cef(optional_param=display_name)--*/
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static CefRefPtr<CefThread> CreateThread(
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const CefString& display_name,
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cef_thread_priority_t priority,
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cef_message_loop_type_t message_loop_type,
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bool stoppable,
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cef_com_init_mode_t com_init_mode);
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///
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/// Create and start a new thread with default/recommended values.
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/// |display_name| is the name that will be used to identify the thread.
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///
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static CefRefPtr<CefThread> CreateThread(const CefString& display_name) {
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return CreateThread(display_name, TP_NORMAL, ML_TYPE_DEFAULT, true,
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COM_INIT_MODE_NONE);
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}
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///
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/// Returns the CefTaskRunner that will execute code on this thread's message
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/// loop. This method is safe to call from any thread.
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///
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/*--cef()--*/
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virtual CefRefPtr<CefTaskRunner> GetTaskRunner() = 0;
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///
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/// Returns the platform thread ID. It will return the same value after Stop()
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/// is called. This method is safe to call from any thread.
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///
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/*--cef(default_retval=kInvalidPlatformThreadId)--*/
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virtual cef_platform_thread_id_t GetPlatformThreadId() = 0;
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///
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/// Stop and join the thread. This method must be called from the same thread
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/// that called CreateThread(). Do not call this method if CreateThread() was
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/// called with a |stoppable| value of false.
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///
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/*--cef()--*/
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virtual void Stop() = 0;
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///
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/// Returns true if the thread is currently running. This method must be
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/// called from the same thread that called CreateThread().
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///
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/*--cef()--*/
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virtual bool IsRunning() = 0;
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};
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#endif // CEF_INCLUDE_CEF_THREAD_H_
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