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83 lines
2.4 KiB
83 lines
2.4 KiB
6 years ago
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// Copyright (c) 2013-2014 Sandstorm Development Group, Inc. and contributors
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// Licensed under the MIT License:
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#ifndef KJ_THREAD_H_
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#define KJ_THREAD_H_
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#if defined(__GNUC__) && !KJ_HEADER_WARNINGS
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#pragma GCC system_header
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#endif
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#include "common.h"
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#include "function.h"
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#include "exception.h"
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namespace kj {
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class Thread {
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// A thread! Pass a lambda to the constructor, and it runs in the thread. The destructor joins
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// the thread. If the function throws an exception, it is rethrown from the thread's destructor
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// (if not unwinding from another exception).
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public:
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explicit Thread(Function<void()> func);
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KJ_DISALLOW_COPY(Thread);
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~Thread() noexcept(false);
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#if !_WIN32
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void sendSignal(int signo);
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// Send a Unix signal to the given thread, using pthread_kill or an equivalent.
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#endif
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void detach();
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// Don't join the thread in ~Thread().
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private:
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struct ThreadState {
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Function<void()> func;
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kj::Maybe<kj::Exception> exception;
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unsigned int refcount;
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// Owned by the parent thread and the child thread.
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void unref();
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};
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ThreadState* state;
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#if _WIN32
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void* threadHandle;
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#else
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unsigned long long threadId; // actually pthread_t
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#endif
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bool detached = false;
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#if _WIN32
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static unsigned long __stdcall runThread(void* ptr);
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#else
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static void* runThread(void* ptr);
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#endif
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};
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} // namespace kj
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#endif // KJ_THREAD_H_
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