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src/hotspot/share/runtime/thread.hpp
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rev 47862 : imported patch 10.07.open.rebase_20171110.dcubed
rev 47865 : dholmes CR: Fix indents, trailing spaces and various typos. Add descriptions for the '_cnt', '_max' and '_times" fields, add impl notes to document the type choices.
rev 47866 : robinw CR: Fix some inefficient code, update some comments, fix some indents, and add some 'const' specifiers.
*** 1174,1184 ****
void set_safepoint_state(ThreadSafepointState *state) { _safepoint_state = state; }
bool is_at_poll_safepoint() { return _safepoint_state->is_at_poll_safepoint(); }
// JavaThread termination and lifecycle support:
void smr_delete();
! bool on_thread_list() { return _on_thread_list; }
void set_on_thread_list() { _on_thread_list = true; }
// thread has called JavaThread::exit() or is terminated
bool is_exiting() const;
// thread is terminated (no longer on the threads list); we compare
--- 1174,1184 ----
void set_safepoint_state(ThreadSafepointState *state) { _safepoint_state = state; }
bool is_at_poll_safepoint() { return _safepoint_state->is_at_poll_safepoint(); }
// JavaThread termination and lifecycle support:
void smr_delete();
! bool on_thread_list() const { return _on_thread_list; }
void set_on_thread_list() { _on_thread_list = true; }
// thread has called JavaThread::exit() or is terminated
bool is_exiting() const;
// thread is terminated (no longer on the threads list); we compare
*** 1185,1195 ****
// against the two non-terminated values so that a freed JavaThread
// will also be considered terminated.
bool check_is_terminated(TerminatedTypes l_terminated) const {
return l_terminated != _not_terminated && l_terminated != _thread_exiting;
}
! bool is_terminated();
void set_terminated(TerminatedTypes t);
// special for Threads::remove() which is static:
void set_terminated_value();
void block_if_vm_exited();
--- 1185,1195 ----
// against the two non-terminated values so that a freed JavaThread
// will also be considered terminated.
bool check_is_terminated(TerminatedTypes l_terminated) const {
return l_terminated != _not_terminated && l_terminated != _thread_exiting;
}
! bool is_terminated() const;
void set_terminated(TerminatedTypes t);
// special for Threads::remove() which is static:
void set_terminated_value();
void block_if_vm_exited();
*** 2128,2155 ****
private:
// Safe Memory Reclamation (SMR) support:
static Monitor* _smr_delete_lock;
// The '_cnt', '_max' and '_times" fields are enabled via
// -XX:+EnableThreadSMRStatistics:
static uint _smr_delete_lock_wait_cnt;
static uint _smr_delete_lock_wait_max;
! static volatile jint _smr_delete_notify;
! static volatile jint _smr_deleted_thread_cnt;
! static volatile jint _smr_deleted_thread_time_max;
! static volatile jint _smr_deleted_thread_times;
static ThreadsList* volatile _smr_java_thread_list;
static ThreadsList* get_smr_java_thread_list();
static ThreadsList* xchg_smr_java_thread_list(ThreadsList* new_list);
! static long _smr_java_thread_list_alloc_cnt;
! static long _smr_java_thread_list_free_cnt;
static uint _smr_java_thread_list_max;
static uint _smr_nested_thread_list_max;
! static volatile jint _smr_tlh_cnt;
! static volatile jint _smr_tlh_time_max;
! static volatile jint _smr_tlh_times;
static ThreadsList* _smr_to_delete_list;
static uint _smr_to_delete_list_cnt;
static uint _smr_to_delete_list_max;
static JavaThread* _thread_list;
static int _number_of_threads;
static int _number_of_non_daemon_threads;
--- 2128,2170 ----
private:
// Safe Memory Reclamation (SMR) support:
static Monitor* _smr_delete_lock;
// The '_cnt', '_max' and '_times" fields are enabled via
// -XX:+EnableThreadSMRStatistics:
+ // # of parallel threads in _smr_delete_lock->wait().
static uint _smr_delete_lock_wait_cnt;
+ // Max # of parallel threads in _smr_delete_lock->wait().
static uint _smr_delete_lock_wait_max;
! // Flag to indicate when an _smr_delete_lock->notify() is needed.
! static volatile uint _smr_delete_notify;
! // # of threads deleted over VM lifetime.
! static volatile uint _smr_deleted_thread_cnt;
! // Max time in millis to delete a thread.
! static volatile uint _smr_deleted_thread_time_max;
! // Cumulative time in millis to delete threads.
! static volatile uint _smr_deleted_thread_times;
static ThreadsList* volatile _smr_java_thread_list;
static ThreadsList* get_smr_java_thread_list();
static ThreadsList* xchg_smr_java_thread_list(ThreadsList* new_list);
! // # of ThreadsLists allocated over VM lifetime.
! static uint64_t _smr_java_thread_list_alloc_cnt;
! // # of ThreadsLists freed over VM lifetime.
! static uint64_t _smr_java_thread_list_free_cnt;
! // Max size ThreadsList allocated.
static uint _smr_java_thread_list_max;
+ // Max # of nested ThreadsLists for a thread.
static uint _smr_nested_thread_list_max;
! // # of ThreadsListHandles deleted over VM lifetime.
! static volatile uint _smr_tlh_cnt;
! // Max time in millis to delete a ThreadsListHandle.
! static volatile uint _smr_tlh_time_max;
! // Cumulative time in millis to delete ThreadsListHandles.
! static volatile uint _smr_tlh_times;
static ThreadsList* _smr_to_delete_list;
+ // # of parallel ThreadsLists on the to-delete list.
static uint _smr_to_delete_list_cnt;
+ // Max # of parallel ThreadsLists on the to-delete list.
static uint _smr_to_delete_list_max;
static JavaThread* _thread_list;
static int _number_of_threads;
static int _number_of_non_daemon_threads;
*** 2197,2211 ****
// locking in order to reduce the traffic on the smr_delete_lock.
static bool smr_delete_notify();
static void set_smr_delete_notify();
static void clear_smr_delete_notify();
static void inc_smr_deleted_thread_cnt();
! static void update_smr_deleted_thread_time_max(jint new_value);
! static void add_smr_deleted_thread_times(jint add_value);
static void inc_smr_tlh_cnt();
! static void update_smr_tlh_time_max(jint new_value);
! static void add_smr_tlh_times(jint add_value);
// Initializes the vm and creates the vm thread
static jint create_vm(JavaVMInitArgs* args, bool* canTryAgain);
static void convert_vm_init_libraries_to_agents();
static void create_vm_init_libraries();
--- 2212,2226 ----
// locking in order to reduce the traffic on the smr_delete_lock.
static bool smr_delete_notify();
static void set_smr_delete_notify();
static void clear_smr_delete_notify();
static void inc_smr_deleted_thread_cnt();
! static void update_smr_deleted_thread_time_max(uint new_value);
! static void add_smr_deleted_thread_times(uint add_value);
static void inc_smr_tlh_cnt();
! static void update_smr_tlh_time_max(uint new_value);
! static void add_smr_tlh_times(uint add_value);
// Initializes the vm and creates the vm thread
static jint create_vm(JavaVMInitArgs* args, bool* canTryAgain);
static void convert_vm_init_libraries_to_agents();
static void create_vm_init_libraries();
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