255 _cur_stack_depth = UNKNOWN_STACK_DEPTH;
256 }
257 if (_cur_stack_depth != UNKNOWN_STACK_DEPTH) {
258 ++_cur_stack_depth;
259 }
260 }
261
262 void JvmtiThreadState::decr_cur_stack_depth() {
263 guarantee(JavaThread::current() == get_thread(), "must be current thread");
264
265 if (!is_interp_only_mode()) {
266 _cur_stack_depth = UNKNOWN_STACK_DEPTH;
267 }
268 if (_cur_stack_depth != UNKNOWN_STACK_DEPTH) {
269 --_cur_stack_depth;
270 assert(_cur_stack_depth >= 0, "incr/decr_cur_stack_depth mismatch");
271 }
272 }
273
274 int JvmtiThreadState::cur_stack_depth() {
275 guarantee(SafepointSynchronize::is_at_safepoint() ||
276 (JavaThread *)Thread::current() == get_thread(),
277 "must be current thread or at safepoint");
278
279 if (!is_interp_only_mode() || _cur_stack_depth == UNKNOWN_STACK_DEPTH) {
280 _cur_stack_depth = count_frames();
281 } else {
282 // heavy weight assert
283 assert(_cur_stack_depth == count_frames(),
284 "cur_stack_depth out of sync");
285 }
286 return _cur_stack_depth;
287 }
288
289 bool JvmtiThreadState::may_be_walked() {
290 return (get_thread()->is_being_ext_suspended() || (JavaThread::current() == get_thread()));
291 }
292
293
294 void JvmtiThreadState::process_pending_step_for_popframe() {
295 // We are single stepping as the last part of the PopFrame() dance
296 // so we have some house keeping to do.
297
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255 _cur_stack_depth = UNKNOWN_STACK_DEPTH;
256 }
257 if (_cur_stack_depth != UNKNOWN_STACK_DEPTH) {
258 ++_cur_stack_depth;
259 }
260 }
261
262 void JvmtiThreadState::decr_cur_stack_depth() {
263 guarantee(JavaThread::current() == get_thread(), "must be current thread");
264
265 if (!is_interp_only_mode()) {
266 _cur_stack_depth = UNKNOWN_STACK_DEPTH;
267 }
268 if (_cur_stack_depth != UNKNOWN_STACK_DEPTH) {
269 --_cur_stack_depth;
270 assert(_cur_stack_depth >= 0, "incr/decr_cur_stack_depth mismatch");
271 }
272 }
273
274 int JvmtiThreadState::cur_stack_depth() {
275 Thread *current = Thread::current();
276 guarantee(current == get_thread() || current == get_thread()->active_handshaker(),
277 "must be current thread or direct handshake");
278
279 if (!is_interp_only_mode() || _cur_stack_depth == UNKNOWN_STACK_DEPTH) {
280 _cur_stack_depth = count_frames();
281 } else {
282 // heavy weight assert
283 assert(_cur_stack_depth == count_frames(),
284 "cur_stack_depth out of sync");
285 }
286 return _cur_stack_depth;
287 }
288
289 bool JvmtiThreadState::may_be_walked() {
290 return (get_thread()->is_being_ext_suspended() || (JavaThread::current() == get_thread()));
291 }
292
293
294 void JvmtiThreadState::process_pending_step_for_popframe() {
295 // We are single stepping as the last part of the PopFrame() dance
296 // so we have some house keeping to do.
297
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