From 79b5932c4eea229fca427bc93ba491ffecef10f5 Mon Sep 17 00:00:00 2001 From: Richard Braun Date: Fri, 9 Nov 2012 21:35:49 +0100 Subject: Implement preliminary thread context Three new modules are added : - kern/task: Tasks are thread groups and resource containers for their threads. - kern/thread: The well known scheduling unit. - x86/tcb: The architecture specific thread control block. The kernel currently loads a single thread context on the main processor. --- kern/task.h | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 kern/task.h (limited to 'kern/task.h') diff --git a/kern/task.h b/kern/task.h new file mode 100644 index 00000000..319651db --- /dev/null +++ b/kern/task.h @@ -0,0 +1,58 @@ +/* + * Copyright (c) 2012 Richard Braun. + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#ifndef _KERN_TASK_H +#define _KERN_TASK_H + +#include + +/* + * Forward declaration. + */ +struct thread; + +/* + * Task name buffer size. + */ +#define TASK_NAME_SIZE 32 + +/* + * Task structure. + */ +struct task { + struct list node; + struct list threads; + struct vm_map *map; + char name[TASK_NAME_SIZE]; +}; + +/* + * The kernel task. + */ +extern struct task *kernel_task; + +/* + * Initialize the task module. + */ +void task_setup(void); + +/* + * Add a thread to a task. + */ +void task_add_thread(struct task *task, struct thread *thread); + +#endif /* _KERN_TASK_H */ -- cgit v1.2.3