Dan Field fe30c3f235 [vm] Expose whether extension stream has listeners, guard postEvent ... This avoids json encoding that was otherwise happening even in product mode. JSON encoding shows up CPU profiling as taking significant time, particularly on low end devices. TEST=runtime/observatory/tests/service/developer_extension_test.dart Bug: https://github.com/dart-lang/sdk/issues/48860 Change-Id: I2cf4d949e85c0b23de01ec2033b04527d40c76fe Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/242081 Reviewed-by: Ben Konyi <bkonyi@google.com> Reviewed-by: Lasse Nielsen <lrn@google.com> Reviewed-by: Alexander Markov <alexmarkov@google.com> Reviewed-by: Daco Harkes <dacoharkes@google.com> Commit-Queue: Dan Field <dnfield@google.com>		2022-04-26 07:53:43 +00:00
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compiler	[vm] Expose whether extension stream has listeners, guard postEvent	2022-04-26 07:53:43 +00:00
images	[vm/docs] Publish "Introduction to Dart VM" source and build tools.	2020-02-04 09:04:32 +00:00
infra	[vm/compiler] Fix DelayAllocations pass	2022-03-04 10:00:41 +00:00
aot_binary_size_analysis.md	[build] Remove runtime_kernel target from GN build	2021-08-13 10:09:41 +00:00
dwarf_stack_traces.md	[build] Remove runtime_kernel target from GN build	2021-08-13 10:09:41 +00:00
gc.md	[vm] Implement NativeFinalizer	2022-03-26 09:41:21 +00:00
index.md	[vm] Rename clustered_snapshot.h/cc to app_snapshot.h/cc.	2021-09-16 00:13:34 +00:00
pragmas.md	[vm] Add @pragma('vm:invisible') to mark functions as invisible for stacktraces	2022-02-18 10:21:02 +00:00
snapshot_profiling.md	Fix typo in snapshot_profiling.md. heapsnaphsot -> heapsnapshot	2019-11-25 15:58:15 +00:00
types.md	master branch to main	2021-09-15 06:22:23 +00:00