sched: task: optional handle_table pointer can now be passed to task_create

include/kernel/task.h

@@ -39,7 +39,10 @@ struct task {
 
 extern struct task *task_alloc(void);
 extern struct task *task_cast(struct object *obj);
-extern struct task *task_create(const char *name, size_t name_len);
+extern struct task *task_create(
+	const char *name,
+	size_t name_len,
+	struct handle_table *handles);
 static inline struct task *task_ref(struct task *task)
 {
 	return OBJECT_CAST(struct task, t_base, object_ref(&task->t_base));

init/main.c

@@ -108,7 +108,7 @@ void kernel_init(uintptr_t arg)
 	       bsp.bsp_trailer.bsp_exec_entry,
 	       bsp.bsp_vmo);
 
-	struct task *bootstrap_task = task_create("bootstrap", 9);
+	struct task *bootstrap_task = task_create("bootstrap", 9, NULL);
 	tracek("created bootstrap task (pid=%u)", bootstrap_task->t_id);
 
 	status = bsp_launch_async(&bsp, bootstrap_task);

sched/task.c

@@ -171,7 +171,10 @@ struct task *task_alloc(void)
 	return t;
 }
 
-struct task *task_create(const char *name, size_t name_len)
+struct task *task_create(
+	const char *name,
+	size_t name_len,
+	struct handle_table *handles)
 {
 	struct task *task = task_alloc();
 	if (!task) {
@@ -191,9 +194,13 @@ struct task *task_create(const char *name, size_t name_len)
 		VM_USER_LIMIT,
 		&task->t_address_space);
 
+	if (!handles) {
+		handles = handle_table_create();
+	}
+
 	task->t_address_space->s_pmap = pmap;
 	task->t_state = TASK_RUNNING;
-	task->t_handles = handle_table_create();
+	task->t_handles = handles;
 
 	if (name) {
 		name_len = MIN(name_len, sizeof task->t_name - 1);

syscall/task.c

@@ -124,7 +124,7 @@ kern_status_t sys_task_create(
 
 	task_unlock_irqrestore(self, flags);
 
-	struct task *child = task_create(name, name_len);
+	struct task *child = task_create(name, name_len, NULL);
 	if (!child) {
 		object_unref(parent_obj);
 
@@ -493,7 +493,10 @@ kern_status_t sys_task_duplicate(
 		return status;
 	}
 
-	struct task *new_task = task_create(self->t_name, strlen(self->t_name));
+	struct task *new_task = task_create(
+		self->t_name,
+		strlen(self->t_name),
+		NULL);
 	if (!new_task) {
 		put_current_task(self);
 		return KERN_NO_MEMORY;