78 lines
2.0 KiB
C++
78 lines
2.0 KiB
C++
/*
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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 __JackMMCSS__
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#define __JackMMCSS__
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#include "JackSystemDeps.h"
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#include "JackCompilerDeps.h"
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#ifdef __MINGW32__
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#include <winsock2.h>
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#endif
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#include <windows.h>
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#include <map>
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namespace Jack
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{
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typedef enum _AVRT_PRIORITY {
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AVRT_PRIORITY_LOW = -1,
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AVRT_PRIORITY_NORMAL, /* 0 */
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AVRT_PRIORITY_HIGH, /* 1 */
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AVRT_PRIORITY_CRITICAL /* 2 */
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} AVRT_PRIORITY, *PAVRT_PRIORITY;
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#define BASE_REALTIME_PRIORITY 90
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typedef HANDLE (WINAPI *avSetMmThreadCharacteristics)(LPCTSTR, LPDWORD);
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typedef BOOL (WINAPI *avRevertMmThreadCharacteristics)(HANDLE);
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typedef BOOL (WINAPI *avSetMmThreadPriority)(HANDLE, AVRT_PRIORITY);
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/*!
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\brief MMCSS services.
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*/
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class SERVER_EXPORT JackMMCSS
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{
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private:
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static JACK_HANDLE fAvrtDll;
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static avSetMmThreadCharacteristics ffMMCSSFun1;
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static avSetMmThreadPriority ffMMCSSFun2;
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static avRevertMmThreadCharacteristics ffMMCSSFun3;
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static std::map<jack_native_thread_t, HANDLE> fHandleTable;
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public:
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JackMMCSS();
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~JackMMCSS();
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static int MMCSSAcquireRealTime(jack_native_thread_t thread, int priority);
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static int MMCSSDropRealTime(jack_native_thread_t thread);
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};
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} // end of namespace
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#endif
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