433
434 // thread id on Linux/64bit is 64bit, on Windows and Solaris, it's 32bit
435 static intx current_thread_id();
436 static int current_process_id();
437 static int sleep(Thread* thread, jlong ms, bool interruptable);
438 // Short standalone OS sleep suitable for slow path spin loop.
439 // Ignores Thread.interrupt() (so keep it short).
440 // ms = 0, will sleep for the least amount of time allowed by the OS.
441 static void naked_short_sleep(jlong ms);
442 static void infinite_sleep(); // never returns, use with CAUTION
443 static void yield(); // Yields to all threads with same priority
444 enum YieldResult {
445 YIELD_SWITCHED = 1, // caller descheduled, other ready threads exist & ran
446 YIELD_NONEREADY = 0, // No other runnable/ready threads.
447 // platform-specific yield return immediately
448 YIELD_UNKNOWN = -1 // Unknown: platform doesn't support _SWITCHED or _NONEREADY
449 // YIELD_SWITCHED and YIELD_NONREADY imply the platform supports a "strong"
450 // yield that can be used in lieu of blocking.
451 } ;
452 static YieldResult NakedYield () ;
453 static void yield_all(int attempts = 0); // Yields to all other threads including lower priority
454 static void loop_breaker(int attempts); // called from within tight loops to possibly influence time-sharing
455 static OSReturn set_priority(Thread* thread, ThreadPriority priority);
456 static OSReturn get_priority(const Thread* const thread, ThreadPriority& priority);
457
458 static void interrupt(Thread* thread);
459 static bool is_interrupted(Thread* thread, bool clear_interrupted);
460
461 static int pd_self_suspend_thread(Thread* thread);
462
463 static ExtendedPC fetch_frame_from_context(void* ucVoid, intptr_t** sp, intptr_t** fp);
464 static frame fetch_frame_from_context(void* ucVoid);
465
466 static ExtendedPC get_thread_pc(Thread *thread);
467 static void breakpoint();
468
469 static address current_stack_pointer();
470 static address current_stack_base();
471 static size_t current_stack_size();
472
473 static void verify_stack_alignment() PRODUCT_RETURN;
474
|
433
434 // thread id on Linux/64bit is 64bit, on Windows and Solaris, it's 32bit
435 static intx current_thread_id();
436 static int current_process_id();
437 static int sleep(Thread* thread, jlong ms, bool interruptable);
438 // Short standalone OS sleep suitable for slow path spin loop.
439 // Ignores Thread.interrupt() (so keep it short).
440 // ms = 0, will sleep for the least amount of time allowed by the OS.
441 static void naked_short_sleep(jlong ms);
442 static void infinite_sleep(); // never returns, use with CAUTION
443 static void yield(); // Yields to all threads with same priority
444 enum YieldResult {
445 YIELD_SWITCHED = 1, // caller descheduled, other ready threads exist & ran
446 YIELD_NONEREADY = 0, // No other runnable/ready threads.
447 // platform-specific yield return immediately
448 YIELD_UNKNOWN = -1 // Unknown: platform doesn't support _SWITCHED or _NONEREADY
449 // YIELD_SWITCHED and YIELD_NONREADY imply the platform supports a "strong"
450 // yield that can be used in lieu of blocking.
451 } ;
452 static YieldResult NakedYield () ;
453 static void yield_all(); // Yields to all other threads including lower priority
454 // (for the default scheduling policy)
455 static OSReturn set_priority(Thread* thread, ThreadPriority priority);
456 static OSReturn get_priority(const Thread* const thread, ThreadPriority& priority);
457
458 static void interrupt(Thread* thread);
459 static bool is_interrupted(Thread* thread, bool clear_interrupted);
460
461 static int pd_self_suspend_thread(Thread* thread);
462
463 static ExtendedPC fetch_frame_from_context(void* ucVoid, intptr_t** sp, intptr_t** fp);
464 static frame fetch_frame_from_context(void* ucVoid);
465
466 static ExtendedPC get_thread_pc(Thread *thread);
467 static void breakpoint();
468
469 static address current_stack_pointer();
470 static address current_stack_base();
471 static size_t current_stack_size();
472
473 static void verify_stack_alignment() PRODUCT_RETURN;
474
|