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nit_fb: change to component API

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Issue #1987
This commit is contained in:
Emery Hemingway 2016-07-15 21:22:29 +02:00 committed by Christian Helmuth
parent e95d7a8fa2
commit f92be575ae
3 changed files with 45 additions and 58 deletions
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100
repos/os/src/server/nit_fb/main.cc
View File

@ -16,18 +16,16 @@
#include <input/component.h> #include <input/component.h>
#include <os/surface.h> #include <os/surface.h>
#include <input/event.h> #include <input/event.h>
#include <os/config.h>
#include <os/static_root.h> #include <os/static_root.h>
#include <os/server.h> #include <base/attached_rom_dataspace.h>
#include <os/attached_dataspace.h> #include <base/component.h>
#include <timer_session/connection.h>
namespace Nit_fb { namespace Nit_fb {
struct Main; struct Main;
using Genode::Static_root; using Genode::Static_root;
using Genode::Signal_rpc_member; using Genode::Signal_handler;
typedef Genode::Surface_base::Point Point; typedef Genode::Surface_base::Point Point;
typedef Genode::Surface_base::Area Area; typedef Genode::Surface_base::Area Area;
@ -39,18 +37,6 @@ namespace Nit_fb {
** Utilities ** ** Utilities **
***************/ ***************/
/**
* Read integer value from config attribute
*/
long config_arg(const char *attr, long default_value)
{
long res = default_value;
try { Genode::config()->xml_node().attribute(attr).value(&res); }
catch (...) { }
return res;
}
/** /**
* Translate input event * Translate input event
*/ */
@ -225,9 +211,11 @@ struct Framebuffer::Session_component : Genode::Rpc_object<Framebuffer::Session>
struct Nit_fb::Main : View_updater struct Nit_fb::Main : View_updater
{ {
Server::Entrypoint &ep; Genode::Env &env;
Nitpicker::Connection nitpicker; Genode::Attached_rom_dataspace config_rom { env, "config" };
Nitpicker::Connection nitpicker { env };
Point position; Point position;
@ -239,9 +227,10 @@ struct Nit_fb::Main : View_updater
Framebuffer::Mode _initial_mode() Framebuffer::Mode _initial_mode()
{ {
return Framebuffer::Mode(config_arg("width", nitpicker.mode().width()), return Framebuffer::Mode(
config_arg("height", nitpicker.mode().height()), config_rom.xml().attribute_value("width", (unsigned)nitpicker.mode().width()),
nitpicker.mode().format()); config_rom.xml().attribute_value("height", (unsigned)nitpicker.mode().height()),
nitpicker.mode().format());
} }
/* /*
@ -253,8 +242,8 @@ struct Nit_fb::Main : View_updater
/* /*
* Attach root interfaces to the entry point * Attach root interfaces to the entry point
*/ */
Static_root<Input::Session> input_root { ep.manage(input_session) }; Static_root<Input::Session> input_root { env.ep().manage(input_session) };
Static_root<Framebuffer::Session> fb_root { ep.manage(fb_session) }; Static_root<Framebuffer::Session> fb_root { env.ep().manage(fb_session) };
/** /**
* View_updater interface * View_updater interface
@ -268,17 +257,18 @@ struct Nit_fb::Main : View_updater
nitpicker.execute(); nitpicker.execute();
} }
void handle_config_update(unsigned) void handle_config_update()
{ {
Genode::config()->reload(); config_rom.update();
Framebuffer::Mode const nit_mode = nitpicker.mode(); Framebuffer::Mode const nit_mode = nitpicker.mode();
position = Point(config_arg("xpos", 0), position = Point(config_rom.xml().attribute_value("xpos", 0U),
config_arg("ypos", 0)); config_rom.xml().attribute_value("ypos", 0U));
fb_session.size(Area(config_arg("width", nit_mode.width()), fb_session.size(Area(
config_arg("height", nit_mode.height()))); config_rom.xml().attribute_value("width", (unsigned)nit_mode.width()),
config_rom.xml().attribute_value("height", (unsigned)nit_mode.height())));
/* /*
* Simulate a client call Framebuffer::Session::mode to make the * Simulate a client call Framebuffer::Session::mode to make the
@ -286,27 +276,27 @@ struct Nit_fb::Main : View_updater
*/ */
fb_session.mode(); fb_session.mode();
PINF("using xywh=(%d,%d,%d,%d)", Genode::log("using xywh=(", position.x(), ",", position.x(),
position.x(), position.x(), ",", fb_session.size().w(),
fb_session.size().w(), fb_session.size().h()); ",", fb_session.size().h(), ")");
update_view(); update_view();
} }
Signal_rpc_member<Main> config_update_dispatcher = Signal_handler<Main> config_update_handler =
{ ep, *this, &Main::handle_config_update}; { env.ep(), *this, &Main::handle_config_update };
void handle_mode_update(unsigned) void handle_mode_update()
{ {
Framebuffer::Mode const nit_mode = nitpicker.mode(); Framebuffer::Mode const nit_mode = nitpicker.mode();
fb_session.size(Area(nit_mode.width(), nit_mode.height())); fb_session.size(Area(nit_mode.width(), nit_mode.height()));
} }
Signal_rpc_member<Main> mode_update_dispatcher = Signal_handler<Main> mode_update_handler =
{ ep, *this, &Main::handle_mode_update}; { env.ep(), *this, &Main::handle_mode_update };
void handle_input(unsigned) void handle_input()
{ {
Input::Event const * const events = input_ds.local_addr<Input::Event>(); Input::Event const * const events = input_ds.local_addr<Input::Event>();
@ -315,46 +305,42 @@ struct Nit_fb::Main : View_updater
input_session.submit(translate_event(events[i], position, fb_session.size())); input_session.submit(translate_event(events[i], position, fb_session.size()));
} }
Signal_rpc_member<Main> input_dispatcher = Signal_handler<Main> input_handler =
{ ep, *this, &Main::handle_input}; { env.ep(), *this, &Main::handle_input };
/** /**
* Constructor * Constructor
*/ */
Main(Server::Entrypoint &ep) : ep(ep) Main(Genode::Env &env) : env(env)
{ {
input_session.event_queue().enabled(true); input_session.event_queue().enabled(true);
/* /*
* Announce services * Announce services
*/ */
Genode::env()->parent()->announce(ep.manage(fb_root)); env.parent().announce(env.ep().manage(fb_root));
Genode::env()->parent()->announce(ep.manage(input_root)); env.parent().announce(env.ep().manage(input_root));
/* /*
* Apply initial configuration * Apply initial configuration
*/ */
handle_config_update(0); handle_config_update();
/* /*
* Register signal handlers * Register signal handlers
*/ */
Genode::config()->sigh(config_update_dispatcher); config_rom.sigh(config_update_handler);
nitpicker.mode_sigh(mode_update_dispatcher); nitpicker.mode_sigh(mode_update_handler);
nitpicker.input()->sigh(input_dispatcher); nitpicker.input()->sigh(input_handler);
} }
}; };
/************ /***************
** Server ** ** Component **
************/ ***************/
namespace Server { Genode::size_t Component::stack_size() { return 4*1024*sizeof(long); }
char const *name() { return "nit_fb_ep"; } void Component::construct(Genode::Env &env) { static Nit_fb::Main inst(env); }
size_t stack_size() { return 4*1024*sizeof(long); }
void construct(Entrypoint &ep) { static Nit_fb::Main inst(ep); }
}

2
repos/os/src/server/nit_fb/target.mk
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@ -1,3 +1,3 @@
TARGET = nit_fb TARGET = nit_fb
SRC_CC = main.cc SRC_CC = main.cc
LIBS = base config server LIBS = base

1
repos/ports/run/vbox_win.inc
View File

@ -141,6 +141,7 @@ append config_of_app {
<start name="nit_fb" priority="-1"> <start name="nit_fb" priority="-1">
<resource name="RAM" quantum="8M" /> <resource name="RAM" quantum="8M" />
<config/>
<provides> <provides>
<service name="Framebuffer" /> <service name="Framebuffer" />
<service name="Input" /> <service name="Input" />