129 lines
3.4 KiB
C++
129 lines
3.4 KiB
C++
/*
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* \brief Slave for drawing window decorations
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* \author Norman Feske
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* \date 2014-02-14
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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 _DECORATOR_SLAVE_H_
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#define _DECORATOR_SLAVE_H_
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namespace Wm {
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class Decorator_slave;
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using Genode::Rom_session_capability;
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using Genode::Capability;
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}
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class Wm::Decorator_slave
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{
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private:
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Genode::Ram_session &_ram;
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class Policy : public Genode::Slave_policy
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{
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private:
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Genode::Service &_nitpicker_service;
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Single_session_service _window_layout_rom_service;
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Single_session_service _pointer_rom_service;
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Single_session_service _hover_report_service;
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protected:
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char const **_permitted_services() const
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{
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static char const *permitted_services[] = {
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"CAP", "LOG", "SIGNAL", "RM", 0 };
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return permitted_services;
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};
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public:
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Policy(Genode::Rpc_entrypoint &entrypoint,
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Genode::Ram_session &ram,
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Genode::Service &nitpicker_service,
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Rom_session_capability window_layout_rom,
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Rom_session_capability pointer_rom,
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Genode::Capability<Report::Session> hover_report)
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:
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Slave_policy("decorator", entrypoint, &ram),
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_nitpicker_service(nitpicker_service),
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_window_layout_rom_service("ROM", window_layout_rom),
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_pointer_rom_service("ROM", pointer_rom),
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_hover_report_service("Report", hover_report)
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{ }
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Genode::Service *resolve_session_request(const char *service_name,
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const char *args) override
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{
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using Genode::strcmp;
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if (strcmp(service_name, "Nitpicker") == 0)
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return &_nitpicker_service;
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char label[128];
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Arg_string::find_arg(args, "label").string(label, sizeof(label), "");
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if (strcmp(service_name, "ROM") == 0) {
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if (strcmp(label, "decorator -> window_layout") == 0)
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return &_window_layout_rom_service;
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if (strcmp(label, "decorator -> pointer") == 0)
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return &_pointer_rom_service;
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}
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if (strcmp(service_name, "Report") == 0) {
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if (strcmp(label, "decorator -> hover") == 0)
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return &_hover_report_service;
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}
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return Genode::Slave_policy::resolve_session_request(service_name, args);
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}
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};
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Genode::size_t const _ep_stack_size = 4*1024*sizeof(Genode::addr_t);
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Genode::Rpc_entrypoint _ep;
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Policy _policy;
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Genode::size_t const _quota = 4*1024*1024;
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Genode::Slave _slave;
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public:
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/**
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* Constructor
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*
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* \param ram RAM session for paying nitpicker sessions created
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* by the decorator
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*/
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Decorator_slave(Genode::Cap_session &cap,
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Genode::Service &nitpicker_service,
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Genode::Ram_session &ram,
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Rom_session_capability window_layout_rom,
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Rom_session_capability pointer_rom,
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Genode::Capability<Report::Session> hover_report)
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:
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_ram(ram),
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_ep(&cap, _ep_stack_size, "decorator"),
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_policy(_ep, ram, nitpicker_service, window_layout_rom,
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pointer_rom, hover_report),
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_slave(_ep, _policy, _quota)
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{ }
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};
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#endif /* _DECORATOR_SLAVE_H_ */
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