132 lines
3.8 KiB
C++
132 lines
3.8 KiB
C++
/*
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Copyright (C) 2001 Paul Davis
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Copyright (C) 2004-2008 Grame
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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 Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __JackThread__
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#define __JackThread__
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#include "JackCompilerDeps.h"
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#include "JackTypes.h"
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namespace Jack
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{
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/*!
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\brief The base class for runnable objects, that have an <B> Init </B> and <B> Execute </B> method to be called in a thread.
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*/
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class JackRunnableInterface
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{
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protected:
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JackRunnableInterface()
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{}
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virtual ~JackRunnableInterface()
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{}
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public:
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virtual bool Init() /*! Called once when the thread is started */
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{
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return true;
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}
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virtual bool Execute() = 0; /*! Must be implemented by subclasses */
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};
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namespace detail
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{
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/*!
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\brief The thread base class.
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*/
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class SERVER_EXPORT JackThreadInterface
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{
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public:
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enum kThreadState {kIdle, kStarting, kIniting, kRunning};
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protected:
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JackRunnableInterface* fRunnable;
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int fPriority;
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bool fRealTime;
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volatile kThreadState fStatus;
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int fCancellation;
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public:
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JackThreadInterface(JackRunnableInterface* runnable, int priority, bool real_time, int cancellation):
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fRunnable(runnable), fPriority(priority), fRealTime(real_time), fStatus(kIdle), fCancellation(cancellation)
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{}
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kThreadState GetStatus()
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{
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return fStatus;
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}
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void SetStatus(kThreadState status)
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{
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fStatus = status;
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}
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void SetParams(UInt64 period, UInt64 computation, UInt64 constraint) // Empty implementation, will only make sense on OSX...
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{}
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int Start();
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int StartSync();
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int Kill();
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int Stop();
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void Terminate();
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int AcquireRealTime(); // Used when called from another thread
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int AcquireSelfRealTime(); // Used when called from thread itself
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int AcquireRealTime(int priority); // Used when called from another thread
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int AcquireSelfRealTime(int priority); // Used when called from thread itself
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int DropRealTime(); // Used when called from another thread
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int DropSelfRealTime(); // Used when called from thread itself
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jack_native_thread_t GetThreadID();
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bool IsThread();
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static int AcquireRealTimeImp(jack_native_thread_t thread, int priority);
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static int AcquireRealTimeImp(jack_native_thread_t thread, int priority, UInt64 period, UInt64 computation, UInt64 constraint);
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static int DropRealTimeImp(jack_native_thread_t thread);
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static int StartImp(jack_native_thread_t* thread, int priority, int realtime, void*(*start_routine)(void*), void* arg);
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static int StopImp(jack_native_thread_t thread);
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static int KillImp(jack_native_thread_t thread);
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};
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}
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} // end of namespace
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bool jack_get_thread_realtime_priority_range(int * min_ptr, int * max_ptr);
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bool jack_tls_allocate_key(jack_tls_key *key_ptr);
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bool jack_tls_free_key(jack_tls_key key);
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bool jack_tls_set(jack_tls_key key, void *data_ptr);
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void *jack_tls_get(jack_tls_key key);
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#endif
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