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Separation of thread operations from CPU session

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This patch moves the thread operations from the 'Cpu_session'
to the 'Cpu_thread' interface.

A noteworthy semantic change is the meaning of the former
'exception_handler' function, which used to define both, the default
exception handler or a thread-specific signal handler. Now, the
'Cpu_session::exception_sigh' function defines the CPU-session-wide
default handler whereas the 'Cpu_thread::exception_sigh' function
defines the thread-specific one.

To retain the ability to create 'Child' objects without invoking a
capability, the child's initial thread must be created outside the
'Child::Process'. It is now represented by the 'Child::Initial_thread',
which is passed as argument to the 'Child' constructor.

Fixes #1939
This commit is contained in:
Norman Feske
2016-05-10 18:05:38 +02:00
committed by Christian Helmuth
parent 59aec6114b
commit a99989af40
66 changed files with 1261 additions and 1384 deletions
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3
repos/base-linux/src/lib/base/thread_linux.cc
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@ -18,6 +18,7 @@
#include <base/snprintf.h>
#include <base/sleep.h>
#include <linux_native_cpu/client.h>
#include <cpu_thread/client.h>
/* base-internal includes */
#include <base/internal/stack.h>
@ -154,5 +155,5 @@ void Thread::start()
void Thread::cancel_blocking()
{
_cpu_session->cancel_blocking(_thread_cap);
Cpu_thread_client(_thread_cap).cancel_blocking();
}