diff options
Diffstat (limited to 'chromium/third_party/webrtc/abseil-in-webrtc.md')
| -rw-r--r-- | chromium/third_party/webrtc/abseil-in-webrtc.md | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/chromium/third_party/webrtc/abseil-in-webrtc.md b/chromium/third_party/webrtc/abseil-in-webrtc.md index 0541d3c7a5a..da03af07b1a 100644 --- a/chromium/third_party/webrtc/abseil-in-webrtc.md +++ b/chromium/third_party/webrtc/abseil-in-webrtc.md @@ -23,9 +23,11 @@ adds the first use. * `absl::variant` and related stuff from `absl/types/variant.h`. * The functions in `absl/algorithm/algorithm.h` and `absl/algorithm/container.h`. +* `absl/base/const_init.h` for mutex initialization. * The macros in `absl/base/attributes.h`, `absl/base/config.h` and `absl/base/macros.h`. + ## **Disallowed** ### `absl::make_unique` @@ -34,7 +36,7 @@ adds the first use. ### `absl::Mutex` -*Use `rtc::CriticalSection` instead.* +*Use `webrtc::Mutex` instead.* Chromium has a ban on new static initializers, and `absl::Mutex` uses one. To make `absl::Mutex` available, we would need to nicely ask the @@ -61,3 +63,12 @@ has decided if they will change `absl::Span` to match. These are optimized for speed, not binary size. Even `StrCat` calls with a modest number of arguments can easily add several hundred bytes to the binary. + +## How to depend on Abseil + +For build targets `rtc_library`, `rtc_source_set` and `rtc_static_library`, +dependencies on Abseil need to be listed in `absl_deps` instead of `deps`. + +This is needed in order to support the Abseil component build in Chromium. In +such build mode, WebRTC will depend on a unique Abseil build target what will +generate a shared library. |