| 295 | } |
| 296 | |
| 297 | [[nodiscard]] auto sys_sched_setaffinity(int pid, size_t cpusetsize, |
| 298 | const uint64_t* mask) -> int { |
| 299 | auto& task_manager = TaskManagerSingleton::instance(); |
| 300 | |
| 301 | TaskControlBlock* target; |
| 302 | if (pid == 0) { |
| 303 | target = task_manager.GetCurrentTask(); |
| 304 | } else { |
| 305 | // 查找指定 PID 的任务 |
| 306 | target = task_manager.FindTask(static_cast<Pid>(pid)); |
| 307 | if (!target) { |
| 308 | klog::Err("[Syscall] sys_sched_setaffinity: Task {} not found", pid); |
| 309 | return -1; |
| 310 | } |
| 311 | } |
| 312 | |
| 313 | if (!target) { |
| 314 | return -1; |
| 315 | } |
| 316 | |
| 317 | // 简单实现：更新 cpu_affinity |
| 318 | if (cpusetsize < sizeof(uint64_t)) { |
| 319 | return -1; |
| 320 | } |
| 321 | |
| 322 | target->aux->cpu_affinity = *mask; |
| 323 | |
| 324 | klog::Debug("[Syscall] Set CPU affinity for task {} to {:#x}", target->pid, |
| 325 | *mask); |
| 326 | |
| 327 | /// @todo 如果当前任务不在允许的 CPU 上运行，应该触发迁移 |
| 328 | |
| 329 | return 0; |
| 330 | } |
| 331 | |
| 332 | [[nodiscard]] auto sys_kill(int pid, int sig) -> int { |
| 333 | auto result = |