130 lines
3.3 KiB
C++
130 lines
3.3 KiB
C++
/**
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* @file _thread.h
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* @brief thread type abstraction
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*
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* $LicenseInfo:firstyear=2012&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2012, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#ifndef LLCOREINT_THREAD_H_
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#define LLCOREINT_THREAD_H_
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#include "linden_common.h"
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#include <boost/thread.hpp>
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#include <boost/function.hpp>
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#include <boost/date_time/posix_time/posix_time_types.hpp>
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#include "apr.h" // thread-related functions
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#include "_refcounted.h"
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#include "fstelemetry.h"
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namespace LLCoreInt
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{
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class HttpThread : public RefCounted
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{
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private:
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HttpThread(); // Not defined
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void operator=(const HttpThread &); // Not defined
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void at_exit()
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{
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// the thread function has exited so we need to release our reference
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// to ourself so that we will be automagically cleaned up.
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release();
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}
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void run()
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{ // THREAD CONTEXT
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// <FS:Beq> - Add threadnames
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LL_INFOS("THREAD") << "Started unnamed HTTP thread " << LL_ENDL;
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FSThreadName( "HTTP" );
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// </FS:Beq>
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// Take out additional reference for the at_exit handler
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addRef();
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boost::this_thread::at_thread_exit(boost::bind(&HttpThread::at_exit, this));
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// run the thread function
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mThreadFunc(this);
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} // THREAD CONTEXT
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protected:
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virtual ~HttpThread()
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{
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delete mThread;
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}
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public:
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/// Constructs a thread object for concurrent execution but does
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/// not start running. Caller receives on refcount on the thread
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/// instance. If the thread is started, another will be taken
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/// out for the exit handler.
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explicit HttpThread(boost::function<void (HttpThread *)> threadFunc)
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: RefCounted(true), // implicit reference
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mThreadFunc(threadFunc)
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{
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// this creates a boost thread that will call HttpThread::run on this instance
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// and pass it the threadfunc callable...
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boost::function<void()> f = boost::bind(&HttpThread::run, this);
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mThread = new boost::thread(f);
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}
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inline void join()
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{
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mThread->join();
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}
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inline bool timedJoin(S32 millis)
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{
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return mThread->timed_join(boost::posix_time::milliseconds(millis));
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}
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inline bool joinable() const
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{
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return mThread->joinable();
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}
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// A very hostile method to force a thread to quit
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inline void cancel()
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{
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boost::thread::native_handle_type thread(mThread->native_handle());
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#if LL_WINDOWS
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TerminateThread(thread, 0);
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#else
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pthread_cancel(thread);
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#endif
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}
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private:
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boost::function<void(HttpThread *)> mThreadFunc;
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boost::thread * mThread;
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}; // end class HttpThread
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} // end namespace LLCoreInt
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#endif // LLCOREINT_THREAD_H_
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