62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
/*
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* \brief Helper functions for the Lock implementation
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* \author Norman Feske
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* \date 2010-04-20
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*
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* For documentation about the interface, please revisit the 'base-pistachio'
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* implementation.
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*/
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/*
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* Copyright (C) 2010-2013 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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/* Genode includes */
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#include <base/native_types.h>
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#include <base/thread.h>
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/* Codezero includes */
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#include <codezero/syscalls.h>
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extern Genode::Native_thread_id main_thread_tid;
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extern Codezero::l4_mutex main_thread_running_lock;
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static inline void thread_yield()
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{
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Codezero::l4_thread_switch(-1);
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}
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static inline bool thread_check_stopped_and_restart(Genode::Thread_base *thread_base)
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{
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Codezero::l4_mutex *running_lock = thread_base ?
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thread_base->utcb()->running_lock() :
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&main_thread_running_lock;
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Codezero::l4_mutex_unlock(running_lock);
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return true;
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}
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static inline void thread_switch_to(Genode::Thread_base *thread_base)
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{
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Genode::Native_thread_id tid = thread_base ?
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thread_base->tid().l4id :
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main_thread_tid;
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Codezero::l4_thread_switch(tid);
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}
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static inline void thread_stop_myself()
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{
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Genode::Thread_base *myself = Genode::Thread_base::myself();
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Codezero::l4_mutex *running_lock = myself ?
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myself->utcb()->running_lock() :
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&main_thread_running_lock;
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Codezero::l4_mutex_lock(running_lock);
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}
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