95 lines
2.0 KiB
C++
95 lines
2.0 KiB
C++
/*
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* \brief Front end of the partition server
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* \author Sebastian Sumpf
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* \author Stefan Kalkowski
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* \author Josef Soentgen
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* \date 2011-05-30
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*/
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/*
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* Copyright (C) 2011-2014 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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#include <block_session/rpc_object.h>
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#include <cap_session/connection.h>
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#include <os/config.h>
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#include "component.h"
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#include "driver.h"
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#include "gpt.h"
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#include "mbr.h"
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static Genode::Signal_receiver receiver;
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Block::Driver& Block::Driver::driver()
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{
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static Block::Driver driver(receiver);
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return driver;
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}
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void Block::Driver::_ready_to_submit(unsigned) {
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Block::Session_component::wake_up(); }
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static bool _use_gpt()
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{
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try {
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return Genode::config()->xml_node().attribute("use_gpt").has_value("yes");
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} catch(...) { }
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return false;
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}
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int main()
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{
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using namespace Genode;
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bool valid_mbr = false;
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bool valid_gpt = false;
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bool use_gpt = _use_gpt();
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if (use_gpt)
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try { valid_gpt = Gpt::table().avail(); } catch (...) { }
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/* fall back to MBR */
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if (!valid_gpt) {
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try { valid_mbr = Mbr_partition_table::table().avail(); }
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catch (Mbr_partition_table::Protective_mbr_found) {
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if (!use_gpt)
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PERR("Aborting: found protective MBR but GPT usage was not requested.");
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return 1;
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}
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}
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Block::Partition_table *partition_table = 0;
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if (valid_gpt)
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partition_table = &Gpt::table();
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if (valid_mbr)
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partition_table = &Mbr_partition_table::table();
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if (!partition_table) {
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PERR("Aborting: no partition table found.");
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return 1;
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}
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enum { STACK_SIZE = 2048 * sizeof(Genode::size_t) };
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static Cap_connection cap;
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static Rpc_entrypoint ep(&cap, STACK_SIZE, "part_ep");
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static Block::Root block_root(&ep, env()->heap(), receiver,
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*partition_table);
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env()->parent()->announce(ep.manage(&block_root));
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while (true) {
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Signal s = receiver.wait_for_signal();
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static_cast<Signal_dispatcher_base *>(s.context())->dispatch(s.num());
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}
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return 0;
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}
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