trace_processor: make StringPool::Id a POD

To distinguish between the overloads of uint32_t and StringId in the
constructor of Column, we need the types to be different according to
C++.

Make StringPool::Id a wrapper of uint32_t instead of being an alias.
This should be a no-op interms of performance but makes the types
different. As a bonus, it's now a lot harder to mess up insert methods
and we get explicit null checking vs implicit null checks which have
been done until now.

Change-Id: I963c4ddbba22dc28f7fed08fddfd4a76755b754d
Bug: 135177627
10 files changed
tree: 5356a203dc400898bf5319a5e35e16e882e0e61a
  1. build_overrides/
  2. buildtools/
  3. debian/
  4. docs/
  5. gn/
  6. include/
  7. infra/
  8. protos/
  9. src/
  10. test/
  11. tools/
  12. ui/
  13. .clang-format
  14. .gitignore
  15. .gn
  16. .travis.yml
  17. Android.bp
  18. Android.bp.extras
  19. BUILD
  20. BUILD.extras
  21. BUILD.gn
  22. codereview.settings
  23. heapprofd.rc
  24. MODULE_LICENSE_APACHE2
  25. NOTICE
  26. OWNERS
  27. perfetto.rc
  28. PRESUBMIT.py
  29. README.chromium
  30. README.md
  31. TEST_MAPPING
README.md

Perfetto - Performance instrumentation and tracing

Perfetto is an open-source project for performance instrumentation and tracing of Linux/Android/Chrome platforms and user-space apps.

See www.perfetto.dev for docs.

Bugs

  • For bugs affecting Android or the tracing internals use the internal bug tracker (go/perfetto-bugs).
  • For bugs affecting Chrome use http://crbug.com, Component:Speed>Tracing label:Perfetto.