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job control: sessions and process groups

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Matheus
2024-05-01 21:42:38 -03:00
parent 1f848fe596
commit 05049a091f
13 changed files with 484 additions and 18 deletions
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kernel-src/sys/scheduler.c
+8 -3
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@@ -10,6 +10,7 @@
#include <kernel/file.h>
#include <semaphore.h>
#include <kernel/devfs.h>
#include <kernel/jobctl.h>
#define QUANTUM_US 100000
#define SCHEDULER_STACK_SIZE PAGE_SIZE
@@ -55,6 +56,8 @@ proc_t *sched_newproc() {
proc->fdfirst = 3;
SPINLOCK_INIT(proc->fdlock);
SEMAPHORE_INIT(&proc->waitsem, 0);
SPINLOCK_INIT(proc->jobctllock);
SPINLOCK_INIT(proc->pgrp.lock);
proc->fd = alloc(sizeof(fd_t) * 3);
if (proc->fd == NULL) {
@@ -242,6 +245,8 @@ void sched_procexit() {
// which hold a reference. it won't now since its a zombie, which is why it will be held
PROC_HOLD(proc);
jobctl_detach(proc);
// close fds
for (int fd = 0; fd < proc->fdcount; ++fd)
fd_close(fd);
@@ -606,11 +611,11 @@ void sched_runinit() {
vnode_t *consolenode;
__assert(devfs_getbyname("console", &consolenode) == 0);
__assert(VOP_OPEN(&consolenode, V_FFLAGS_READ, &proc->cred) == 0)
__assert(VOP_OPEN(&consolenode, V_FFLAGS_READ | V_FFLAGS_NOCTTY, &proc->cred) == 0)
VOP_HOLD(consolenode);
__assert(VOP_OPEN(&consolenode, V_FFLAGS_WRITE, &proc->cred) == 0)
__assert(VOP_OPEN(&consolenode, V_FFLAGS_WRITE | V_FFLAGS_NOCTTY, &proc->cred) == 0)
VOP_HOLD(consolenode);
__assert(VOP_OPEN(&consolenode, V_FFLAGS_WRITE, &proc->cred) == 0)
__assert(VOP_OPEN(&consolenode, V_FFLAGS_WRITE | V_FFLAGS_NOCTTY, &proc->cred) == 0)
file_t *stdin = fd_allocate();
file_t *stdout = fd_allocate();