Mercurial > hg > truffle
diff src/share/vm/runtime/thread.hpp @ 4873:0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
Reviewed-by: kvn
author | never |
---|---|
date | Wed, 01 Feb 2012 16:57:08 -0800 |
parents | 1a2723f7ad8e |
children | 33df1aeaebbf 541c4a5e7b88 |
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--- a/src/share/vm/runtime/thread.hpp Wed Feb 01 07:59:01 2012 -0800 +++ b/src/share/vm/runtime/thread.hpp Wed Feb 01 16:57:08 2012 -0800 @@ -182,7 +182,8 @@ _ext_suspended = 0x40000000U, // thread has self-suspended _deopt_suspend = 0x10000000U, // thread needs to self suspend for deopt - _has_async_exception = 0x00000001U // there is a pending async exception + _has_async_exception = 0x00000001U, // there is a pending async exception + _critical_native_unlock = 0x00000002U // Must call back to unlock JNI critical lock }; // various suspension related flags - atomically updated @@ -350,6 +351,15 @@ clear_suspend_flag(_has_async_exception); } + bool do_critical_native_unlock() const { return (_suspend_flags & _critical_native_unlock) != 0; } + + void set_critical_native_unlock() { + set_suspend_flag(_critical_native_unlock); + } + void clear_critical_native_unlock() { + clear_suspend_flag(_critical_native_unlock); + } + // Support for Unhandled Oop detection #ifdef CHECK_UNHANDLED_OOPS private: @@ -1038,6 +1048,11 @@ // Check for async exception in addition to safepoint and suspend request. static void check_special_condition_for_native_trans(JavaThread *thread); + // Same as check_special_condition_for_native_trans but finishes the + // transition into thread_in_Java mode so that it can potentially + // block. + static void check_special_condition_for_native_trans_and_transition(JavaThread *thread); + bool is_ext_suspend_completed(bool called_by_wait, int delay, uint32_t *bits); bool is_ext_suspend_completed_with_lock(uint32_t *bits) { MutexLockerEx ml(SR_lock(), Mutex::_no_safepoint_check_flag); @@ -1311,8 +1326,9 @@ // JNI critical regions. These can nest. bool in_critical() { return _jni_active_critical > 0; } bool in_last_critical() { return _jni_active_critical == 1; } - void enter_critical() { assert(Thread::current() == this, - "this must be current thread"); + void enter_critical() { assert(Thread::current() == this || + Thread::current()->is_VM_thread() && SafepointSynchronize::is_synchronizing(), + "this must be current thread or synchronizing"); _jni_active_critical++; } void exit_critical() { assert(Thread::current() == this, "this must be current thread");