android/JackAndroidThread.h

   1 /*
   2 Copyright (C) 2001 Paul Davis
   3 Copyright (C) 2004-2008 Grame
   4 Copyright (C) 2013 Samsung Electronics
   5
   6 This program is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU Lesser General Public License as published by
   8 the Free Software Foundation; either version 2.1 of the License, or
   9 (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU Lesser General Public License for more details.
  15
  16 You should have received a copy of the GNU Lesser General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19
  20 */
  21
  22 #ifndef __JackAndroidThread__
  23 #define __JackAndroidThread__
  24
  25 #include "JackThread.h"
  26 #include <pthread.h>
  27
  28 namespace Jack
  29 {
  30
  31 /* use 512KB stack per thread - the default is way too high to be feasible
  32  * with mlockall() on many systems */
  33 #define THREAD_STACK 524288
  34
  35 enum
  36 {
  37   PTHREAD_CANCEL_DEFERRED,
  38   PTHREAD_CANCEL_ASYNCHRONOUS
  39 };
  40
  41 /*!
  42 \brief The POSIX thread base class.
  43 */
  44
  45 class SERVER_EXPORT JackAndroidThread : public detail::JackThreadInterface
  46 {
  47
  48     protected:
  49
  50         jack_native_thread_t fThread;
  51         static void* ThreadHandler(void* arg);
  52         static void thread_exit_handler(int sig);
  53
  54     public:
  55
  56         JackAndroidThread(JackRunnableInterface* runnable, bool real_time, int priority, int cancellation)
  57                 : JackThreadInterface(runnable, priority, real_time, cancellation), fThread((jack_native_thread_t)NULL)
  58         {}
  59         JackAndroidThread(JackRunnableInterface* runnable, int cancellation = PTHREAD_CANCEL_ASYNCHRONOUS)
  60                 : JackThreadInterface(runnable, 0, false, cancellation), fThread((jack_native_thread_t)NULL)
  61         {}
  62
  63         int Start();
  64         int StartSync();
  65         int Kill();
  66         int Stop();
  67         void Terminate();
  68
  69         int AcquireRealTime();                  // Used when called from another thread
  70         int AcquireSelfRealTime();              // Used when called from thread itself
  71
  72         int AcquireRealTime(int priority);      // Used when called from another thread
  73         int AcquireSelfRealTime(int priority);  // Used when called from thread itself
  74
  75         int DropRealTime();                     // Used when called from another thread
  76         int DropSelfRealTime();                 // Used when called from thread itself
  77
  78         jack_native_thread_t GetThreadID();
  79         bool IsThread();
  80
  81         static int AcquireRealTimeImp(jack_native_thread_t thread, int priority);
  82         static int AcquireRealTimeImp(jack_native_thread_t thread, int priority, UInt64 period, UInt64 computation, UInt64 constraint)
  83         {
  84             return JackAndroidThread::AcquireRealTimeImp(thread, priority);
  85         }
  86         static int DropRealTimeImp(jack_native_thread_t thread);
  87         static int StartImp(jack_native_thread_t* thread, int priority, int realtime, void*(*start_routine)(void*), void* arg);
  88         static int StopImp(jack_native_thread_t thread);
  89         static int KillImp(jack_native_thread_t thread);
  90 };
  91
  92 SERVER_EXPORT void ThreadExit();
  93
  94 } // end of namespace
  95
  96
  97 #endif