LadybirdBrowser/ladybird
1
1
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2024-09-20 01:37:39 +03:00
Code Issues Packages Projects Releases Wiki Activity

Misc: Add a simple init process

Browse Source 
This doesn't do much right now, just fork off a bunch of stuff and set priorities.
This commit is contained in:
Robin Burchell 2019-05-29 22:36:23 +02:00 committed by Andreas Kling
parent 9cd0f6ffac
commit d31ce9eccd
Notes: sideshowbarker 2024-07-19 13:50:44 +09:00 
Author: https://github.com/rburchell
Commit: https://github.com/SerenityOS/serenity/commit/d31ce9eccdc
Pull-request: https://github.com/SerenityOS/serenity/pull/147
Reviewed-by: https://github.com/alexispurslane
Reviewed-by: https://github.com/awesomekling
6 changed files with 95 additions and 52 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

55
Kernel/init.cpp
View File

@ -26,15 +26,6 @@
#include <Kernel/Net/NetworkTask.h>
#include <Kernel/Devices/DebugLogDevice.h>
#define SPAWN_TERMINAL
#define SPAWN_LAUNCHER
//#define SPAWN_GUITEST2
//#define SPAWN_FILE_MANAGER
//#define SPAWN_PROCESS_MANAGER
//#define SPAWN_TEXT_EDITOR
//#define SPAWN_FONTEDITOR
//#define SPAWN_VISUAL_BUILDER
//#define SPAWN_MULTIPLE_SHELLS
//#define STRESS_TEST_SPAWNING
VirtualConsole* tty0;
@ -88,52 +79,12 @@ VFS* vfs;
int error;
auto* dns_lookup_server_process = Process::create_user_process("/bin/LookupServer", (uid_t)100, (gid_t)100, (pid_t)0, error, { }, { }, tty0);
auto* system_server_process = Process::create_user_process("/bin/SystemServer", (uid_t)100, (gid_t)100, (pid_t)0, error, { }, { }, tty0);
if (error != 0) {
dbgprintf("error spawning LookupServer: %d\n", error);
dbgprintf("error spawning SystemServer: %d\n", error);
hang();
}
auto* window_server_process = Process::create_user_process("/bin/WindowServer", (uid_t)100, (gid_t)100, (pid_t)0, error, { }, { }, tty0);
if (error != 0) {
dbgprintf("error spawning WindowServer: %d\n", error);
hang();
}
window_server_process->set_priority(Process::HighPriority);
Process::create_user_process("/bin/Taskbar", (uid_t)100, (gid_t)100, (pid_t)0, error);
//Process::create_user_process("/bin/sh", (uid_t)100, (gid_t)100, (pid_t)0, error, { }, move(environment), tty0);
#ifdef SPAWN_TERMINAL
Process::create_user_process("/bin/Terminal", (uid_t)100, (gid_t)100, (pid_t)0, error, { }, { }, tty0);
#endif
#ifdef SPAWN_GUITEST2
Process::create_user_process("/bin/guitest2", (uid_t)100, (gid_t)100, (pid_t)0, error, { }, { }, tty0);
#endif
#ifdef SPAWN_LAUNCHER
Process::create_user_process("/bin/Launcher", (uid_t)100, (gid_t)100, (pid_t)0, error, { }, { }, tty0);
#endif
#ifdef SPAWN_VISUAL_BUILDER
Process::create_user_process("/bin/VisualBuilder", (uid_t)100, (gid_t)100, (pid_t)0, error, { }, { }, tty0);
#endif
#ifdef SPAWN_FILE_MANAGER
Process::create_user_process("/bin/FileManager", (uid_t)100, (gid_t)100, (pid_t)0, error, { }, { }, tty0);
#endif
#ifdef SPAWN_PROCESS_MANAGER
Process::create_user_process("/bin/ProcessManager", (uid_t)100, (gid_t)100, (pid_t)0, error, { }, { }, tty0);
#endif
#ifdef SPAWN_TEXT_EDITOR
Vector<String> text_editor_arguments;
text_editor_arguments.append("/bin/TextEditor");
text_editor_arguments.append("/home/anon/ReadMe.md");
Process::create_user_process("/bin/TextEditor", (uid_t)100, (gid_t)100, (pid_t)0, error, move(text_editor_arguments), { }, tty0);
#endif
#ifdef SPAWN_FONTEDITOR
Process::create_user_process("/bin/FontEditor", (uid_t)100, (gid_t)100, (pid_t)0, error, { }, move(environment), tty0);
#endif
#ifdef SPAWN_MULTIPLE_SHELLS
Process::create_user_process("/bin/sh", (uid_t)100, (gid_t)100, (pid_t)0, error, { }, { }, tty1);
Process::create_user_process("/bin/sh", (uid_t)100, (gid_t)100, (pid_t)0, error, { }, { }, tty2);
Process::create_user_process("/bin/sh", (uid_t)100, (gid_t)100, (pid_t)0, error, { }, { }, tty3);
#endif
system_server_process->set_priority(Process::HighPriority);
#ifdef STRESS_TEST_SPAWNING
Process::create_kernel_process("spawn_stress", spawn_stress);

1
Kernel/makeall.sh
View File

@ -13,6 +13,7 @@ build_targets=""
build_targets="$build_targets ../LibC"
build_targets="$build_targets ../LibM"
build_targets="$build_targets ../LibCore"
build_targets="$build_targets ../Servers/SystemServer"
build_targets="$build_targets ../Servers/LookupServer"
build_targets="$build_targets ../Servers/WindowServer"
build_targets="$build_targets ../LibGUI"

1
Kernel/sync.sh
View File

@ -63,6 +63,7 @@ cp -v ../Applications/TextEditor/TextEditor mnt/bin/TextEditor
cp -v ../Applications/IRCClient/IRCClient mnt/bin/IRCClient
ln -s IRCClient mnt/bin/irc
ln -s FileManager mnt/bin/fm
cp -v ../Servers/SystemServer/SystemServer mnt/bin/SystemServer
cp -v ../Servers/LookupServer/LookupServer mnt/bin/LookupServer
cp -v ../Servers/WindowServer/WindowServer mnt/bin/WindowServer
cp -v ../Applications/Taskbar/Taskbar mnt/bin/Taskbar

23
Servers/SystemServer/Makefile Normal file
View File

@ -0,0 +1,23 @@
include ../../Makefile.common
SYSTEMSERVER_OBJS = \
main.o
APP = SystemServer
OBJS = $(SYSTEMSERVER_OBJS)
DEFINES += -DUSERLAND
all: $(APP)
$(APP): $(OBJS)
$(LD) -o $(APP) $(LDFLAGS) $(OBJS) -lc -lcore
.cpp.o:
@echo "CXX $<"; $(CXX) $(CXXFLAGS) -o $@ -c $<
-include $(OBJS:%.o=%.d)
clean:
@echo "CLEAN"; rm -f $(APP) $(OBJS) *.d

4
Servers/SystemServer/install.sh Executable file
View File

@ -0,0 +1,4 @@
#!/bin/bash
#mkdir -p ../../Root/usr/include/SystemServer/
#cp *.h ../../Root/usr/include/SystemServer/

63
Servers/SystemServer/main.cpp Normal file
View File

@ -0,0 +1,63 @@
#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <sched.h>
#include <AK/Assertions.h>
void start_process(const char *prog, int prio)
{
pid_t pid = 0;
while (true) {
dbgprintf("Forking for %s...\n", prog);
int pid = fork();
if (pid < 0) {
dbgprintf("Fork %s failed! %s\n", prog, strerror(errno));
continue;
} else if (pid > 0) {
// parent...
dbgprintf("Process %s hopefully started with priority %d...\n", prog, prio);
return;
}
break;
}
while (true) {
if (pid == 0) {
dbgprintf("Executing for %s... at prio %d\n", prog, prio);
struct sched_param p;
p.sched_priority = prio;
int ret = sched_setparam(pid, &p);
ASSERT(ret == 0);
char* progv[256];
progv[0] = (char*)prog;
progv[1] = nullptr;
ret = execv(prog, progv);
if (ret < 0) {
dbgprintf("Exec %s failed! %s", prog, strerror(errno));
continue;
}
break;
} else {
break;
}
}
}
int main(int, char **)
{
int lowest_prio = sched_get_priority_min(SCHED_OTHER);
int highest_prio = sched_get_priority_max(SCHED_OTHER);
start_process("/bin/LookupServer", lowest_prio);
start_process("/bin/WindowServer", highest_prio);
start_process("/bin/Taskbar", highest_prio);
start_process("/bin/Terminal", highest_prio-1);
start_process("/bin/Launcher", highest_prio);
while (1) {
sleep(1);
}
}