wip: fork and wait are almost working (missing child's stack)

src/drivers/clock.c

@@ -38,11 +38,8 @@ void clock_init(struct registers *regs)
 static void clock_handler(struct registers *regs)
 {
 	(void)regs;
-	if (scheduler_counter % 100 == 0) {
+	if (scheduler_counter % 100 == 0)
-		cli();
 		scheduler();
-		toris();
-	}
 	scheduler_counter++;
 	sleep_counter--;
 }

src/kernel.c

@@ -43,10 +43,10 @@ static void owo(void)
 
 static void awa(void)
 {
-	/* if (fork() < 0) */
+	if (fork() < 0)
-	/* 	kprintf("camille il a une grosse bite (18cm)\n"); */
+		kprintf("camille il a une grosse bite (18cm)\n");
 	kprintf("awaille\n");
-	/* wait(); */
+	wait();
 }
 
 void kernel_main(multiboot_info_t *mbd, u32 magic)

src/multitasking/scheduler.c

@@ -1,5 +1,6 @@
 #include "alloc.h"
 #include "debug.h"
+#include "interrupts.h"
 #include "kprintf.h"
 #include "task.h"
 #include "time.h"
@@ -10,6 +11,7 @@ struct task *current_task;
 
 void scheduler(void)
 {
+	cli();
 	if (!current_task) // || current_task->next == current_task)
 		return;
 	struct task *it = current_task->next;
@@ -22,4 +24,5 @@ void scheduler(void)
 		it = it->next;
 	}
 	switch_to_task(it);
+	toris();
 }

src/multitasking/task.c

@@ -20,6 +20,7 @@ struct task *create_task(u8 uid)
 	new_task->next = current_task->next;
 	new_task->prev = current_task;
 	current_task->next = new_task;
+	new_task->status = RUN;
 	new_task->uid = uid;
 	new_task->esp0 = alloc_pages(STACK_SIZE, NULL);
 	if (!new_task->esp0) {
@@ -58,7 +59,6 @@ void exec_fn(void (*fn)(void))
 	struct task *new_task = create_task(OWNER_KERNEL);
 	if (!new_task)
 		kpanic("failed to create new task");
-	new_task->status = RUN;
 	new_task->eip = (u32 *)fn;
 }
 
@@ -69,9 +69,9 @@ void remove_task(struct task *task)
 	if (task->child)
 		remove_task(task->child);
 	if (task->heap)
-		vfree(task->heap);
+		free_pages(task->heap, 4096);
 	if (task->esp0)
-		vfree(task->esp0);
+		free_pages(task->esp0, STACK_SIZE);
 	task->heap = NULL;
 	task->esp0 = NULL;
 	if (task->status != ZOMBIE) {
@@ -86,8 +86,11 @@ void exit_task(void)
 	cli();
 	if (current_task->daddy && current_task->daddy->status != WAIT)
 		current_task->status = ZOMBIE;
-	else
+	else {
+		if (current_task->daddy->status == WAIT)
+			current_task->daddy->status = RUN;
 		current_task->status = STOPPED;
+	}
 	toris();
 	asm volatile("jmp scheduler");
 }

src/multitasking/wait.c

@@ -3,7 +3,15 @@
 
 u16 wait(void)
 {
+	if (current_task->child == NULL)
+		return -1;
 	cli();
+	if (current_task->child->status == ZOMBIE)
+		current_task->child->status = STOPPED;
+	else
+		current_task->status = WAIT;
+	u16 child_pid = current_task->child->pid;
 	toris();
-	return 0;
+	scheduler();
+	return child_pid;
 }