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design: update design doc

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Some of the api was renamed before the merge.
This commit is contained in:
Stefan Sauer 2016-05-30 02:06:01 -07:00
parent b23cb42ae9
commit 1385e24bc6
1 changed files with 1 additions and 6 deletions
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7
docs/design/part-tracing.txt
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@ -142,7 +142,7 @@ _tracer_class_init() function (except in the log tracer).
// the name is the value name + ".class" // the name is the value name + ".class"
// the content describes a single log record // the content describes a single log record
gst_structure_new ("thread-rusage.class", gst_tracer_record_new ("thread-rusage.class",
// value in the log record (order does not matter) // value in the log record (order does not matter)
// 'thread-id' is a 'key' to related the record to something as indicated // 'thread-id' is a 'key' to related the record to something as indicated
// by 'scope' substructure // by 'scope' substructure
@ -180,16 +180,11 @@ A few ideas that are not yet in the above spec:
- they add a unique 'ix' to each instance as the memory ptr can be reused - they add a unique 'ix' to each instance as the memory ptr can be reused
for new instances, the data is attached to the objects as qdata for new instances, the data is attached to the objects as qdata
- the latency tracer would like to also reference this metadata - the latency tracer would like to also reference this metadata
- enums and flags are logged as comma separated string to not require the front-
ends to know the flag values (is that okay?)
- right now we log the classes as structures - right now we log the classes as structures
- this is important so that the log is self contained - this is important so that the log is self contained
- it would be nice to add them to the registry, so that gst-inspect can show - it would be nice to add them to the registry, so that gst-inspect can show
them them
In addition to the above spec, each log event will contain a "ts" field as a
G_TYPE_UINT64 to specify the time of the event.
We could also consider to add each value as a READABLE gobject property. The We could also consider to add each value as a READABLE gobject property. The
property has name/description. We could use qdata for scope and flags (or have property has name/description. We could use qdata for scope and flags (or have
some new property flags). some new property flags).