93 lines
2.0 KiB
C++
93 lines
2.0 KiB
C++
/*
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* \brief Implementation of Thread API interface for core
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* \author Martin Stein
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* \date 2012-01-25
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*/
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/*
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* Copyright (C) 2012 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/thread.h>
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#include <base/env.h>
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#include <kernel/log.h>
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/* core includes */
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#include <platform.h>
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#include <platform_thread.h>
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using namespace Genode;
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extern Genode::Native_utcb * _main_utcb;
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namespace Kernel { unsigned core_id(); }
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Native_utcb * Thread_base::utcb()
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{
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/* this is the main thread */
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if (!this) { return _main_utcb; }
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/* this isn't the main thread */
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return _tid->phys_utcb();
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}
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/**
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* Returns 0 if this is the main thread or the thread base pointer otherwise
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*/
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Thread_base * Thread_base::myself()
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{
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/* get our platform thread wich holds our thread base or 0 */
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Platform_thread * const pt = Kernel::get_thread();
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if (pt) return pt->thread_base();
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/* we are core main, the only thread beside idle with no platform thread */
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else return 0;
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}
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static void thread_entry()
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{
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/* this is never called by a main thread */
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Thread_base::myself()->entry();
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}
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Thread_base::Thread_base(const char *name, size_t stack_size)
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: _list_element(this), _tid(0)
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{
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_tid = new (platform()->core_mem_alloc())
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Platform_thread(name, this, stack_size, Kernel::core_id());
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}
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Thread_base::~Thread_base()
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{
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kernel_log() << __PRETTY_FUNCTION__ << ": Not implemented\n";
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while (1) ;
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}
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void Thread_base::start()
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{
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size_t const stack_size = _tid->stack_size()/sizeof(unsigned long) + 1;
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void * const stack_base = new (platform()->core_mem_alloc())
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unsigned long [stack_size];
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void * sp = (void *)((addr_t)stack_base + _tid->stack_size());
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void * ip = (void *)&thread_entry;
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if (_tid->start(ip, sp)) PERR("Couldn't start thread");
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}
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void Thread_base::cancel_blocking()
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{
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kernel_log() << __PRETTY_FUNCTION__ << ": Not implemented\n";
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while (1) ;
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}
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