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
116 lines
2.6 KiB
C++
116 lines
2.6 KiB
C++
/*
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* \brief Core-specific pseudo PD session
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* \author Norman Feske
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* \date 2016-01-13
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*/
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/*
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* Copyright (C) 2015 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 _CORE__INCLUDE__CORE_PD_SESSION_H_
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#define _CORE__INCLUDE__CORE_PD_SESSION_H_
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/* Genode includes */
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#include <base/rpc_server.h>
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#include <base/allocator.h>
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#include <pd_session/pd_session.h>
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/* core includes */
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#include <assertion.h>
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#include <signal_source_component.h>
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namespace Genode { class Core_pd_session_component; }
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class Genode::Core_pd_session_component : public Rpc_object<Pd_session>
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{
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private:
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Rpc_entrypoint &_signal_source_ep;
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public:
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/**
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* Constructor
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*
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* \param context_ep entrypoint that serves the signal-source
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* components
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*/
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Core_pd_session_component(Rpc_entrypoint &signal_source_ep)
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:
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_signal_source_ep(signal_source_ep)
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{ }
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void assign_parent(Capability<Parent> parent) override
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{
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ASSERT_NEVER_CALLED;
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}
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bool assign_pci(addr_t pci_config_memory_address, uint16_t) override
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{
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ASSERT_NEVER_CALLED;
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}
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Signal_source_capability alloc_signal_source() override
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{
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/*
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* Even though core does not receive any signals, this function is
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* called by the base-common initialization code on base-hw. We
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* can savely return an invalid capability as it is never used.
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*/
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return Signal_source_capability();
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}
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void free_signal_source(Signal_source_capability cap) override
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{
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ASSERT_NEVER_CALLED;
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}
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Capability<Signal_context>
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alloc_context(Signal_source_capability source, unsigned long imprint) override
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{
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ASSERT_NEVER_CALLED;
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}
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void free_context(Capability<Signal_context> cap) override
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{
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ASSERT_NEVER_CALLED;
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}
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void submit(Capability<Signal_context> cap, unsigned cnt = 1) override
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{
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_signal_source_ep.apply(cap, [&] (Signal_context_component *context) {
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if (!context) {
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warning("invalid signal-context capability");
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return;
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}
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context->source()->submit(context, cnt);
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});
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}
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Native_capability alloc_rpc_cap(Native_capability) override
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{
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ASSERT_NEVER_CALLED;
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}
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void free_rpc_cap(Native_capability) override
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{
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ASSERT_NEVER_CALLED;
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}
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Capability<Region_map> address_space() { ASSERT_NEVER_CALLED; }
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Capability<Region_map> stack_area() { ASSERT_NEVER_CALLED; }
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Capability<Region_map> linker_area() { ASSERT_NEVER_CALLED; }
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Capability<Native_pd> native_pd() override { ASSERT_NEVER_CALLED; }
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};
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#endif /* _CORE__INCLUDE__CORE_PD_SESSION_H_ */
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