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/*
* Copyright (C) 2000-2015 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2013-2014 John Emmas <john@creativepost.co.uk>
* Copyright (C) 2017-2018 Robin Gareus <robin@gareus.org>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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 <ardourext/pthread.h>
#else
#include <pthread.h>
#endif
#include <signal.h>
#include <string>
#include <stdint.h>
#include "pbd/libpbd_visibility.h"
#include "pbd/signals.h"
#define PBD_RT_STACKSIZE_PROC 0x20000 // 128kB
#define PBD_RT_STACKSIZE_HELP 0x08000 // 32kB
/* these are relative to sched_get_priority_max()
* see pbd_absolute_rt_priority()
*/
#define PBD_RT_PRI_MAIN -20
#define PBD_RT_PRI_MIDI -21
#define PBD_RT_PRI_PROC -22
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<void,pthread_t,std::string,uint32_t> 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__ */
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