Niels Möller 0240bcc1f3 Make NetEqController::TargetLevelMs method const
This method is used by GetStats, and hence must not modify any state.

This cl is step one of the api change, the non-const version of the
method can be deleted once downstream implementations of this
interface are updated.

Bug: webrtc:11622
Change-Id: Icfaccee6bc918ac5c8a39dd2567a1081e342e9e8
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/183881
Reviewed-by: Ivo Creusen <ivoc@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#32072}
2020-09-10 15:50:46 +00:00
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2019-02-01 13:24:47 +00:00

How to write code in the api/ directory

Mostly, just follow the regular style guide, but:

  • Note that api/ code is not exempt from the “.h and .cc files come in pairs” rule, so if you declare something in api/path/to/foo.h, it should be defined in api/path/to/foo.cc.
  • Headers in api/ should, if possible, not #include headers outside api/. Its not always possible to avoid this, but be aware that it adds to a small mountain of technical debt that were trying to shrink.
  • .cc files in api/, on the other hand, are free to #include headers outside api/.

That is, the preferred way for api/ code to access non-api/ code is to call it from a .cc file, so that users of our API headers wont transitively #include non-public headers.

For headers in api/ that need to refer to non-public types, forward declarations are often a lesser evil than including non-public header files. The usual rules still apply, though.

.cc files in api/ should preferably be kept reasonably small. If a substantial implementation is needed, consider putting it with our non-public code, and just call it from the api/ .cc file.