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17c79a9e23
Besides adapting the components to the use of base/log.h, the patch cleans up a few base headers, i.e., it removes unused includes from root/component.h, specifically base/heap.h and ram_session/ram_session.h. Hence, components that relied on the implicit inclusion of those headers have to manually include those headers now. While adjusting the log messages, I repeatedly stumbled over the problem that printing char * arguments is ambiguous. It is unclear whether to print the argument as pointer or null-terminated string. To overcome this problem, the patch introduces a new type 'Cstring' that allows the caller to express that the argument should be handled as null-terminated string. As a nice side effect, with this type in place, the optional len argument of the 'String' class could be removed. Instead of supplying a pair of (char const *, size_t), the constructor accepts a 'Cstring'. This, in turn, clears the way let the 'String' constructor use the new output mechanism to assemble a string from multiple arguments (and thereby getting rid of snprintf within Genode in the near future). To enforce the explicit resolution of the char * ambiguity, the 'char *' overload of the 'print' function is marked as deleted. Issue #1987
82 lines
1.4 KiB
C++
82 lines
1.4 KiB
C++
/**
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* \brief Hard-context for use within rump kernel
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* \author Sebastian Sumpf
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* \date 2014-02-05
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*/
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/*
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* Copyright (C) 2014 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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#ifndef _INCLUDE__HARD_CONTEXT_H_
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#define _INCLUDE__HARD_CONTEXT_H_
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extern "C" {
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <rump/rump.h>
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}
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#include <base/thread.h>
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#include <base/log.h>
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/*************
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** Threads **
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*************/
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typedef void *(*func)(void *);
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namespace Timer {
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class Connection;
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};
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class Hard_context
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{
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private:
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int _cookie;
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lwp *_lwp = 0;
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public:
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Hard_context(int cookie)
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: _cookie(cookie){ }
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void set_lwp(lwp *l) { _lwp = l; }
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lwp *get_lwp() { return _lwp; }
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static Timer::Connection *timer();
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};
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class Hard_context_thread : public Hard_context,
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public Genode::Thread_deprecated<sizeof(Genode::addr_t) * 2048>
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{
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private:
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func _func;
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void *_arg;
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protected:
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void entry()
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{
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_func(_arg);
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Genode::log(__func__, " returned from func");
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}
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public:
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Hard_context_thread(char const *name, func f, void *arg, int cookie, bool run = true)
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: Hard_context(cookie), Thread_deprecated(name),
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_func(f), _arg(arg) { if (run) start(); }
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};
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#endif /* _INCLUDE__HARD_CONTEXT_H_ */
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