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genode/base-hw/src/base/thread/thread_bootstrap.cc

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Rework the internal lock interface With this patch, the 'futex' syscall gets used for blocking and unblocking of threads in the Linux-specific lock implementation. The 'Native_thread_id' type, which was previously used in the lock-internal 'Applicant' class to identify a thread to be woken up, was not suitable anymore for implementing this change. With this patch, the 'Thread_base*' type gets used instead, which also has the positive effect of making the public 'cancelable_lock.h' header file platform-independent. Fixes #646.
2013-02-25 21:18:26 +01:00
/*
* \brief Thread bootstrap code
* \author Christian Prochaska
* \date 2013-02-15
*/
/*
* Copyright (C) 2013 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU General Public License version 2.
*/
/* Genode includes */
#include <base/thread.h>
hw: clearer naming scheme in kernel API Rename kernel syscall in kernel call and the kernel-API files in kernel/interface* . ref #953
2013-11-14 17:29:34 +01:00
/* base-hw includes */
#include <kernel/interface.h>
Rework the internal lock interface With this patch, the 'futex' syscall gets used for blocking and unblocking of threads in the Linux-specific lock implementation. The 'Native_thread_id' type, which was previously used in the lock-internal 'Applicant' class to identify a thread to be woken up, was not suitable anymore for implementing this change. With this patch, the 'Thread_base*' type gets used instead, which also has the positive effect of making the public 'cancelable_lock.h' header file platform-independent. Fixes #646.
2013-02-25 21:18:26 +01:00
void Genode::Thread_base::_thread_bootstrap()
{
hw: get rid of Kernel::current_thread_id Every thread receives a startup message from its creator through the initial state of its userland thread-context. The thread-startup code remembers the kernel name of the new thread by reading this message before the userland thread-context gets polluted. This way, Kernel::current_thread_id becomes unnecessary. fix #953
2013-11-19 15:13:24 +01:00
Native_utcb * const utcb = Thread_base::myself()->utcb();
hw: turn Native_utcb into restrictive class fix #958
2013-11-21 17:26:44 +01:00
_tid.thread_id = utcb->start_info()->thread_id();
Rework the internal lock interface With this patch, the 'futex' syscall gets used for blocking and unblocking of threads in the Linux-specific lock implementation. The 'Native_thread_id' type, which was previously used in the lock-internal 'Applicant' class to identify a thread to be woken up, was not suitable anymore for implementing this change. With this patch, the 'Thread_base*' type gets used instead, which also has the positive effect of making the public 'cancelable_lock.h' header file platform-independent. Fixes #646.
2013-02-25 21:18:26 +01:00
}