Switch profiler from isolates to threads

- API breakage: Dart_IsolateBlocked, Dart_IsolateUnblocked -> Dart_ThreadDisableProfiling, Dart_ThreadEnableProfiling.
- Remove IsolateProfilerData.
- Move thread at blocking call count from isolate to thread.
- Always interrupt threads unless they are blocked.
- We can no longer count "idle" ticks.
- Only record sample if thread is the current mutator of an isolate.
- Refactor ThreadInterrupterCallback to ensure that Thread* is valid.

Threads are only ever sent signals if ThreadInterruptsEnabled is true. Which is controlled by two functions:

void DisableThreadInterrupts();
void EnableThreadInterrupts();

R=asiva@google.com, iposva@google.com

Review URL: https://codereview.chromium.org/1412733008 .
27 files changed
tree: 3ddccbe5a649f7d1361e2cc5ec3db624a57b2bce
  1. client/
  2. docs/
  3. pkg/
  4. runtime/
  5. samples/
  6. samples-dev/
  7. sdk/
  8. site/
  9. tests/
  10. third_party/
  11. tools/
  12. utils/
  13. .gitattributes
  14. .gitignore
  15. .mailmap
  16. AUTHORS
  17. CHANGELOG.md
  18. codereview.settings
  19. create_sdk.gyp
  20. dart.gyp
  21. DEPS
  22. LICENSE
  23. PATENTS
  24. PRESUBMIT.py
  25. README.dart-sdk
  26. README.md
  27. WATCHLISTS
README.md

Dart

Dart is an open-source, scalable programming language, with robust libraries and runtimes, for building web, server, and mobile apps.

Using Dart

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Browse pub.dartlang.org for more packages and libraries contributed by the community and the Dart team.

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Learn how to get the source and prepare your machine to build the SDK.

There are more documents on our wiki.

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You can also contribute patches, as described in Contributing.

License

See LICENSE.