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nitpicker: Use signals for main loop

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This commit is contained in:
Norman Feske 2013-09-07 02:17:15 +02:00
parent fa34b79b2c
commit ab3bc1bb58
1 changed files with 29 additions and 25 deletions
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54
os/src/server/nitpicker/genode/main.cc
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@ -657,14 +657,14 @@ class Input_handler_component : public Genode::Rpc_object<Input_handler,
{
private:
User_state &_user_state;
View &_mouse_cursor;
Area const _mouse_size;
Flush_merger &_flush_merger;
Input::Session &_input;
Input::Event *_ev_buf;
Framebuffer::Session &_framebuffer;
Timer::Session &_timer;
User_state &_user_state;
View &_mouse_cursor;
Area const _mouse_size;
Flush_merger &_flush_merger;
Input::Session &_input;
Input::Event *_ev_buf;
Framebuffer::Session &_framebuffer;
Genode::Signal_receiver &_sig_rec;
public:
@ -675,13 +675,13 @@ class Input_handler_component : public Genode::Rpc_object<Input_handler,
Area mouse_size, Flush_merger &flush_merger,
Input::Session &input,
Framebuffer::Session &framebuffer,
Timer::Session &timer)
Genode::Signal_receiver &sig_rec)
:
_user_state(user_state), _mouse_cursor(mouse_cursor),
_mouse_size(mouse_size), _flush_merger(flush_merger),
_input(input),
_ev_buf(Genode::env()->rm_session()->attach(_input.dataspace())),
_framebuffer(framebuffer), _timer(timer)
_framebuffer(framebuffer), _sig_rec(sig_rec)
{ }
/**
@ -786,12 +786,12 @@ class Input_handler_component : public Genode::Rpc_object<Input_handler,
/*
* In kill mode, we never leave the dispatch function to block
* RPC calls from Nitpicker clients. We sleep here to make the
* spinning for the end of the kill mode less painful for all
* non-blocked processes.
* RPC calls from Nitpicker clients. We block for signals here
* to make the spinning for the end of the kill mode less
* painful for all non-blocked processes.
*/
if (_user_state.kill())
_timer.msleep(10);
_sig_rec.wait_for_signal();
} while (_user_state.kill());
}
@ -887,7 +887,6 @@ int main(int argc, char **argv)
/*
* Sessions to the required external services
*/
static Timer::Connection timer;
static Framebuffer::Connection framebuffer;
static Input::Connection input;
static Cap_connection cap;
@ -951,7 +950,6 @@ int main(int argc, char **argv)
/*
* Initialize Nitpicker root interface
*/
Sliced_heap sliced_heap(env()->ram_session(), env()->rm_session());
static Nitpicker::Root<PT> np_root(session_list, global_keys,
@ -962,6 +960,16 @@ int main(int argc, char **argv)
env()->parent()->announce(ep.manage(&np_root));
/*
* Schedule periodic timer signals every 10 milliseconds
*/
static Timer::Connection timer;
static Signal_receiver sig_rec;
Signal_context timer_sig_ctx;
timer.sigh(sig_rec.manage(&timer_sig_ctx));
timer.trigger_periodic(10*1000);
/*
* Initialize input handling
*
@ -972,17 +980,13 @@ int main(int argc, char **argv)
*/
static Input_handler_component
input_handler(user_state, mouse_cursor, mouse_size,
screen, input, framebuffer, timer);
screen, input, framebuffer, sig_rec);
Capability<Input_handler> input_handler_cap = ep.manage(&input_handler);
/* start periodic mode of operation */
static Msgbuf<256> ih_snd_msg, ih_rcv_msg;
Ipc_client input_handler_client(input_handler_cap, &ih_snd_msg, &ih_rcv_msg);
while (1) {
timer.msleep(10);
input_handler_client << 0 << IPC_CALL;
for (;;) {
sig_rec.wait_for_signal();
input_handler_cap.call<Input_handler::Rpc_do_input_handling>();
}
sleep_forever();
return 0;
}