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Start refactoring the windowing system to use an event loop.

Browse source 
Userspace programs can now open /dev/gui_events and read a stream of GUI_Event
structs one at a time.

I was stuck on a stupid problem where we'd reenter Scheduler::yield() due to
having one of the has_data_available_for_reading() implementations using locks.
This commit is contained in:
Andreas Kling 2019-01-14 14:21:51 +01:00
parent b4da4e8fbd
commit b0e3f73375
46 changed files with 283 additions and 292 deletions
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6
Kernel/init.cpp
View file

@ -15,6 +15,7 @@
#include <VirtualFileSystem/RandomDevice.h>
#include <VirtualFileSystem/Ext2FileSystem.h>
#include <VirtualFileSystem/VirtualFileSystem.h>
#include <Widgets/GUIEventDevice.h>
#include "MemoryManager.h"
#include "ProcFileSystem.h"
#include "RTC.h"
@ -34,6 +35,7 @@ VirtualConsole* tty2;
VirtualConsole* tty3;
Keyboard* keyboard;
PS2MouseDevice* ps2mouse;
GUIEventDevice* gui_event_device;
#ifdef STRESS_TEST_SPAWNING
static void spawn_stress() NORETURN;
@ -75,6 +77,7 @@ static void init_stage2()
vfs->register_character_device(*keyboard);
vfs->register_character_device(*ps2mouse);
vfs->register_character_device(*gui_event_device);
vfs->register_character_device(*tty0);
vfs->register_character_device(*tty1);
vfs->register_character_device(*tty2);
@ -94,7 +97,7 @@ static void init_stage2()
environment.append("TERM=ansi");
int error;
Process::create_user_process("/bin/sh", (uid_t)100, (gid_t)100, (pid_t)0, error, { }, move(environment), tty0);
//Process::create_user_process("/bin/sh", (uid_t)100, (gid_t)100, (pid_t)0, error, { }, move(environment), tty0);
#ifdef SPAWN_GUI_TEST_APP
Process::create_user_process("/bin/guitest", (uid_t)100, (gid_t)100, (pid_t)0, error, { }, move(environment), tty0);
#endif
@ -132,6 +135,7 @@ void init()
keyboard = new Keyboard;
ps2mouse = new PS2MouseDevice;
gui_event_device = new GUIEventDevice;
VirtualConsole::initialize();
tty0 = new VirtualConsole(0, VirtualConsole::AdoptCurrentVGABuffer);