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sched: implement task id allocation; remove thread id bitmap

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max 🍓
2026-02-08 12:54:43 +00:00
parent 7c4cff24f2
commit bcda479879
2 changed files with 32 additions and 9 deletions
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30
sched/task.c
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@@ -17,7 +17,10 @@ static struct object_type task_type = {
static struct task *__kernel_task;
static struct task *__idle_task;
static spin_lock_t task_list_lock;
static spin_lock_t pid_map_lock = SPIN_LOCK_INIT;
static DECLARE_BITMAP(pid_map, PID_MAX);
static spin_lock_t task_list_lock = SPIN_LOCK_INIT;
static struct btree task_list;
BTREE_DEFINE_SIMPLE_GET(
@@ -45,6 +48,31 @@ void idle(void)
}
}
static unsigned int pid_alloc(void)
{
unsigned long flags;
spin_lock_irqsave(&pid_map_lock, &flags);
unsigned int pid = bitmap_lowest_clear(pid_map, PID_MAX);
if (pid != BITMAP_NPOS) {
bitmap_set(pid_map, pid);
}
spin_unlock_irqrestore(&pid_map_lock, flags);
return pid;
}
static void pid_free(unsigned int pid)
{
unsigned long flags;
spin_lock_irqsave(&pid_map_lock, &flags);
bitmap_clear(pid_map, pid);
spin_unlock_irqrestore(&pid_map_lock, flags);
}
kern_status_t setup_kernel_task(void)
{
__kernel_task = task_alloc();