/* Copyright (C) 2000-2007 Paul Davis This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef __pbd_pthread_utils__ #define __pbd_pthread_utils__ /* Accommodate thread setting (and testing) for both * 'libpthread' and 'libpthread_win32' (whose implementations * of 'pthread_t' are subtlely different) */ #ifndef PTHREAD_MACROS_DEFINED #define PTHREAD_MACROS_DEFINED #ifdef PTW32_VERSION /* pthread_win32 */ #define mark_pthread_inactive(threadID) threadID.p=0 #define is_pthread_active(threadID) threadID.p!=0 #else /* normal pthread */ #define mark_pthread_inactive(threadID) threadID=0 #define is_pthread_active(threadID) threadID!=0 #endif /* PTW32_VERSION */ #endif /* PTHREAD_MACROS_DEFINED */ #ifdef COMPILER_MSVC #include #else #include #endif #include #include #include #include "pbd/libpbd_visibility.h" #include "pbd/signals.h" LIBPBD_API int pthread_create_and_store (std::string name, pthread_t *thread, void * (*start_routine)(void *), void * arg); LIBPBD_API void pthread_cancel_one (pthread_t thread); LIBPBD_API void pthread_cancel_all (); LIBPBD_API void pthread_kill_all (int signum); LIBPBD_API const char* pthread_name (); LIBPBD_API void pthread_set_name (const char* name); LIBPBD_API int pbd_realtime_pthread_create ( const int policy, int priority, const size_t stacksize, pthread_t *thread, void *(*start_routine) (void *), void *arg); LIBPBD_API int pbd_absolute_rt_priority (int policy, int priority); LIBPBD_API int pbd_set_thread_priority (pthread_t, const int policy, int priority); LIBPBD_API bool pbd_mach_set_realtime_policy (pthread_t thread_id, double period_ns); namespace PBD { LIBPBD_API extern void notify_event_loops_about_thread_creation (pthread_t, const std::string&, int requests = 256); LIBPBD_API extern PBD::Signal3 ThreadCreatedWithRequestSize; } /* pthread-w32 does not support realtime scheduling * (well, windows, doesn't..) and only supports SetThreadPriority() * * pthread_setschedparam() returns ENOTSUP if the policy is not SCHED_OTHER. * * however, pthread_create() with attributes, ignores the policy and * only sets the priority (when PTHREAD_EXPLICIT_SCHED is used). */ #ifdef PLATFORM_WINDOWS #define PBD_SCHED_FIFO SCHED_OTHER #else #define PBD_SCHED_FIFO SCHED_FIFO #endif #endif /* __pbd_pthread_utils__ */