diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/inc/os/sched.h | 5 | ||||
| -rw-r--r-- | sys/os/os_sched.c | 18 |
2 files changed, 23 insertions, 0 deletions
diff --git a/sys/inc/os/sched.h b/sys/inc/os/sched.h index 1caf1d6..948c95b 100644 --- a/sys/inc/os/sched.h +++ b/sys/inc/os/sched.h @@ -42,4 +42,9 @@ */ struct cpu_info *sched_enqueue_proc(struct process *proc); +/* + * Dequeue a process from the current core + */ +struct process *sched_dequeue_proc(void); + #endif /* !_OS_SCHED_H_ */ diff --git a/sys/os/os_sched.c b/sys/os/os_sched.c index e0dfc98..7d3b485 100644 --- a/sys/os/os_sched.c +++ b/sys/os/os_sched.c @@ -64,3 +64,21 @@ sched_enqueue_proc(struct process *proc) TAILQ_INSERT_TAIL(&core->pqueue, proc, link); return core; } + +struct process * +sched_dequeue_proc(void) +{ + struct cpu_info *core; + struct process *proc; + + core = cpu_self(); + if (core == NULL) { + return NULL; + } + + proc = TAILQ_FIRST(&core->pqueue); + if (proc != NULL) { + TAILQ_REMOVE(&core->pqueue, proc, link); + } + return proc; +} |
