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syscalls: fchdir, setitimer, getitimer

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Matheus
2024-05-29 11:10:24 -03:00
parent 5b5d300fc1
commit 5f7791cd08
11 changed files with 313 additions and 13 deletions
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kernel-src/sys/scheduler.c
+30 -2
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@@ -49,6 +49,27 @@ proc_t *sched_getprocfrompid(int pid) {
return proc;
}
static void rtdpc(context_t *, dpcarg_t arg) {
proc_t *proc = arg;
// XXX this can sleep and if it does the entire system burns down sooooooo yeah fix this for the love of god
__assert(proc->threadtablesize == 1);
signal_signalproc(arg, SIGALRM);
}
static void vtdpc(context_t *, dpcarg_t arg) {
proc_t *proc = arg;
// XXX this can sleep and if it does the entire system burns down sooooooo yeah fix this for the love of god
__assert(proc->threadtablesize == 1);
signal_signalproc(arg, SIGVTALRM);
}
static void profdpc(context_t *, dpcarg_t arg) {
proc_t *proc = arg;
// XXX this can sleep and if it does the entire system burns down sooooooo yeah fix this for the love of god
__assert(proc->threadtablesize == 1);
signal_signalproc(arg, SIGPROF);
}
proc_t *sched_newproc() {
proc_t *proc = slab_allocate(processcache);
if (proc == NULL)
@@ -76,6 +97,10 @@ proc_t *sched_newproc() {
SPINLOCK_INIT(proc->jobctllock);
SPINLOCK_INIT(proc->pgrp.lock);
SPINLOCK_INIT(proc->signals.lock);
MUTEX_INIT(&proc->timer.mutex);
itimer_init(&proc->timer.realtime, rtdpc, proc);
itimer_init(&proc->timer.virtualtime, vtdpc, proc);
itimer_init(&proc->timer.profiling, profdpc, proc);
proc->fd = alloc(sizeof(fd_t) * 3);
if (proc->fd == NULL) {
@@ -127,7 +152,6 @@ thread_t *sched_newthread(void *ip, size_t kstacksize, int priority, proc_t *pro
thread->tid = __atomic_fetch_add(&currpid, 1, __ATOMIC_SEQ_CST);
}
CTX_INIT(&thread->context, proc != NULL, true);
CTX_XINIT(&thread->extracontext, proc != NULL);
CTX_SP(&thread->context) = proc ? (ctxreg_t)ustack : (ctxreg_t)thread->kernelstacktop;
@@ -291,6 +315,11 @@ void sched_procexit() {
for (int fd = 0; fd < proc->fdcount; ++fd)
fd_close(fd);
// turn off interval timers
itimer_pause(&proc->timer.realtime, NULL, NULL);
itimer_pause(&proc->timer.virtualtime, NULL, NULL);
itimer_pause(&proc->timer.profiling, NULL, NULL);
// zombify the proc
MUTEX_ACQUIRE(&proc->mutex, false);
@@ -392,7 +421,6 @@ typedef struct {
// SHOULD NOT BE CALLED WITH THE SCHEDULER STACK
static void userspacecheck(void *_args) {
checkargs_t *args = _args;
__assert(_cpu() >= (cpu_t *)0xffffffff80000000);
thread_t *thread = _cpu()->thread;
if (thread->shouldexit) {