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#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);
}
}
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