derek.holloway
7502bf64a4
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62 lines
1.8 KiB
C++
62 lines
1.8 KiB
C++
/* Task group
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Copyright (C) 2023-2024 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef GDBSUPPORT_TASK_GROUP_H
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#define GDBSUPPORT_TASK_GROUP_H
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#include <memory>
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namespace gdb
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{
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/* A task group is a collection of tasks. Each task in the group is
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submitted to the thread pool. When all the tasks in the group have
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finished, a final action is run. */
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class task_group
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{
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public:
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explicit task_group (std::function<void ()> &&done);
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DISABLE_COPY_AND_ASSIGN (task_group);
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/* Add a task to the task group. All tasks must be added before the
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group is started. Note that a task may not throw an
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exception. */
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void add_task (std::function<void ()> &&task);
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/* Start this task group. A task group may only be started once.
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This will submit all the tasks to the global thread pool. */
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void start ();
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private:
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class impl;
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/* A task group is just a facade around an impl. This is done
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because the impl object must live as long as its longest-lived
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task, so it is heap-allocated and destroyed when the last task
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completes. */
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std::shared_ptr<impl> m_task;
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};
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} /* namespace gdb */
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#endif /* GDBSUPPORT_TASK_GROUP_H */
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