436
437 // thread id on Linux/64bit is 64bit, on Windows and Solaris, it's 32bit
438 static intx current_thread_id();
439 static int current_process_id();
440 static int sleep(Thread* thread, jlong ms, bool interruptable);
441 // Short standalone OS sleep suitable for slow path spin loop.
442 // Ignores Thread.interrupt() (so keep it short).
443 // ms = 0, will sleep for the least amount of time allowed by the OS.
444 static void naked_short_sleep(jlong ms);
445 static void infinite_sleep(); // never returns, use with CAUTION
446 static void yield(); // Yields to all threads with same priority
447 enum YieldResult {
448 YIELD_SWITCHED = 1, // caller descheduled, other ready threads exist & ran
449 YIELD_NONEREADY = 0, // No other runnable/ready threads.
450 // platform-specific yield return immediately
451 YIELD_UNKNOWN = -1 // Unknown: platform doesn't support _SWITCHED or _NONEREADY
452 // YIELD_SWITCHED and YIELD_NONREADY imply the platform supports a "strong"
453 // yield that can be used in lieu of blocking.
454 } ;
455 static YieldResult NakedYield () ;
456 static void yield_all(); // Yields to all other threads including lower priority
457 // (for the default scheduling policy)
458 static OSReturn set_priority(Thread* thread, ThreadPriority priority);
459 static OSReturn get_priority(const Thread* const thread, ThreadPriority& priority);
460
461 static void interrupt(Thread* thread);
462 static bool is_interrupted(Thread* thread, bool clear_interrupted);
463
464 static int pd_self_suspend_thread(Thread* thread);
465
466 static ExtendedPC fetch_frame_from_context(void* ucVoid, intptr_t** sp, intptr_t** fp);
467 static frame fetch_frame_from_context(void* ucVoid);
468
469 static ExtendedPC get_thread_pc(Thread *thread);
470 static void breakpoint();
471
472 static address current_stack_pointer();
473 static address current_stack_base();
474 static size_t current_stack_size();
475
476 static void verify_stack_alignment() PRODUCT_RETURN;
477
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436
437 // thread id on Linux/64bit is 64bit, on Windows and Solaris, it's 32bit
438 static intx current_thread_id();
439 static int current_process_id();
440 static int sleep(Thread* thread, jlong ms, bool interruptable);
441 // Short standalone OS sleep suitable for slow path spin loop.
442 // Ignores Thread.interrupt() (so keep it short).
443 // ms = 0, will sleep for the least amount of time allowed by the OS.
444 static void naked_short_sleep(jlong ms);
445 static void infinite_sleep(); // never returns, use with CAUTION
446 static void yield(); // Yields to all threads with same priority
447 enum YieldResult {
448 YIELD_SWITCHED = 1, // caller descheduled, other ready threads exist & ran
449 YIELD_NONEREADY = 0, // No other runnable/ready threads.
450 // platform-specific yield return immediately
451 YIELD_UNKNOWN = -1 // Unknown: platform doesn't support _SWITCHED or _NONEREADY
452 // YIELD_SWITCHED and YIELD_NONREADY imply the platform supports a "strong"
453 // yield that can be used in lieu of blocking.
454 } ;
455 static YieldResult NakedYield () ;
456 static OSReturn set_priority(Thread* thread, ThreadPriority priority);
457 static OSReturn get_priority(const Thread* const thread, ThreadPriority& priority);
458
459 static void interrupt(Thread* thread);
460 static bool is_interrupted(Thread* thread, bool clear_interrupted);
461
462 static int pd_self_suspend_thread(Thread* thread);
463
464 static ExtendedPC fetch_frame_from_context(void* ucVoid, intptr_t** sp, intptr_t** fp);
465 static frame fetch_frame_from_context(void* ucVoid);
466
467 static ExtendedPC get_thread_pc(Thread *thread);
468 static void breakpoint();
469
470 static address current_stack_pointer();
471 static address current_stack_base();
472 static size_t current_stack_size();
473
474 static void verify_stack_alignment() PRODUCT_RETURN;
475
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