90 lines
1.9 KiB
C++
90 lines
1.9 KiB
C++
/*
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* \brief Implementation of the Thread API
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* \author Norman Feske
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* \date 2010-01-19
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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/thread.h>
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#include <base/log.h>
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#include <base/sleep.h>
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#include <base/env.h>
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#include <cpu_thread/client.h>
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/* base-internal includes */
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#include <base/internal/stack.h>
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using namespace Genode;
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/**
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* Entry point entered by new threads
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*/
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void Thread::_thread_start()
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{
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Thread::myself()->_thread_bootstrap();
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/* catch any exception at this point and try to print an error message */
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try {
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Thread::myself()->entry();
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} catch (...) {
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try {
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raw("Thread '", Thread::myself()->name().string(),
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"' died because of an uncaught exception");
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} catch (...) {
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/* die in a noisy way */
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*(unsigned long *)0 = 0xdead;
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}
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throw;
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}
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Thread::myself()->_join_lock.unlock();
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/* sleep silently */
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Genode::sleep_forever();
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}
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/************
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** Thread **
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************/
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void Thread::_deinit_platform_thread()
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{
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if (!_cpu_session)
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_cpu_session = env_deprecated()->cpu_session();
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_cpu_session->kill_thread(_thread_cap);
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}
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void Thread::start()
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{
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/* if no CPU session is given, use it from the environment */
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if (!_cpu_session)
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_cpu_session = env_deprecated()->cpu_session();
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/* create thread at core */
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addr_t const utcb = (addr_t)&_stack->utcb();
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_thread_cap = _cpu_session->create_thread(env_deprecated()->pd_session_cap(), name(),
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_affinity, Weight(), utcb);
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if (!_thread_cap.valid())
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throw Cpu_session::Thread_creation_failed();
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/* start execution at initial instruction pointer and stack pointer */
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Cpu_thread_client(_thread_cap).start((addr_t)_thread_start, _stack->top());
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}
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void Thread::cancel_blocking()
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{
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Cpu_thread_client(_thread_cap).cancel_blocking();
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}
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