webrtc_m130/webrtc/stats/DEPS

include_rules = [
  "+webrtc/api",
  "+webrtc/base",
  "+webrtc/media",
]
RTCStats and RTCStatsReport added (webrtc/stats). The old and new getStats are very different. This CL proposes rewriting the new getStats from scratch with a bottom-up approach, starting with the fundamental stats classes. This will allow cleaner and more efficient code that is more aligned with the spec. RTCStats and subclasses are the equivalent to RTCStats and RTCStats- -derived dictionaries from the specs[1][2]. The dictionary members are public member variables of type RTCStatsMember<T>, where T is one of the supported types. All members derive from RTCStatsMemberInterface and iteration of members is possible with RTCStats::Members(). The members are not stored in a map for performance and readability. Type checking is supported with static class variables, kType. Only the supported member types T are specialized and may be instantiated, and sequences are supported with std::vector<...>. Type checking is again supported with static class variables, kType. RTCStatsReport is the equivalent from the spec[3], and maps RTCStats::id to RTCStats-objects. RTCStatsReport is reference counted. It and its contained stats may be destroyed on any thread. When the RTCStatsCollector is added in a follow-up CL, it will return const references to the RTCStatsReports. This means copies don't have to be made for multiple stats observers or when jumping threads. In fact, no copies of any stats will have to be made in surfacing stats to Blink. [1] https://www.w3.org/TR/2016/WD-webrtc-20160531/#rtcstats-dictionary [2] https://w3c.github.io/webrtc-stats/archives/20160526/webrtc-stats.html [3] https://www.w3.org/TR/2016/WD-webrtc-20160531/#rtcstatsreport-object This adds the new folder webrtc/stats/, with target rtc_stats and binary rtc_stats_unittests. Public api headers are placed in webrtc/api/ and .cc files are placed in webrtc/stats/. BUG=chromium:627816 Review-Url: https://codereview.webrtc.org/2241093002 Cr-Commit-Position: refs/heads/master@{#13879} 2016-08-24 01:33:13 -07:00			`include_rules = [`
			`"+webrtc/api",`
			`"+webrtc/base",`
RTCStatsCollector and RTCPeerConnectionStats added. This is the stats collector for the new stats types, RTCStats[1] and RTCStatsReport[2]. It so far only produces RTCPeerConnectionStats[3] as an example of how it would collect stats. Each RTCStats subclass will get a corresponding RTCStatsCollector::ProduceFooStats(). Stats reports are cached and returned as const references (ref counting). This allows stats to be inspected by multiple observers and across multiple threads. No copies will have to be made when surfacing this to Blink or other places. The current implementation of ProducePeerConnectionStats() only look at existing DataChannels. This might be incorret if data channels can be removed? Will investigate in a follow-up, crbug.com/636818. [1] https://www.w3.org/TR/2016/WD-webrtc-20160531/#idl-def-rtcstats [2] https://www.w3.org/TR/2016/WD-webrtc-20160531/#rtcstatsreport-object [3] https://w3c.github.io/webrtc-stats/archives/20160526/webrtc-stats.html#pcstats-dict* BUG=chromium:627816, chromium:636818 Review-Url: https://codereview.webrtc.org/2242043002 Cr-Commit-Position: refs/heads/master@{#13979} 2016-08-30 14:04:35 -07:00			`"+webrtc/media",`
RTCStats and RTCStatsReport added (webrtc/stats). The old and new getStats are very different. This CL proposes rewriting the new getStats from scratch with a bottom-up approach, starting with the fundamental stats classes. This will allow cleaner and more efficient code that is more aligned with the spec. RTCStats and subclasses are the equivalent to RTCStats and RTCStats- -derived dictionaries from the specs[1][2]. The dictionary members are public member variables of type RTCStatsMember<T>, where T is one of the supported types. All members derive from RTCStatsMemberInterface and iteration of members is possible with RTCStats::Members(). The members are not stored in a map for performance and readability. Type checking is supported with static class variables, kType. Only the supported member types T are specialized and may be instantiated, and sequences are supported with std::vector<...>. Type checking is again supported with static class variables, kType. RTCStatsReport is the equivalent from the spec[3], and maps RTCStats::id to RTCStats-objects. RTCStatsReport is reference counted. It and its contained stats may be destroyed on any thread. When the RTCStatsCollector is added in a follow-up CL, it will return const references to the RTCStatsReports. This means copies don't have to be made for multiple stats observers or when jumping threads. In fact, no copies of any stats will have to be made in surfacing stats to Blink. [1] https://www.w3.org/TR/2016/WD-webrtc-20160531/#rtcstats-dictionary [2] https://w3c.github.io/webrtc-stats/archives/20160526/webrtc-stats.html [3] https://www.w3.org/TR/2016/WD-webrtc-20160531/#rtcstatsreport-object This adds the new folder webrtc/stats/, with target rtc_stats and binary rtc_stats_unittests. Public api headers are placed in webrtc/api/ and .cc files are placed in webrtc/stats/. BUG=chromium:627816 Review-Url: https://codereview.webrtc.org/2241093002 Cr-Commit-Position: refs/heads/master@{#13879} 2016-08-24 01:33:13 -07:00			`]`