function Tracer:prepareForReport()

in lib/skywalking/tracer.lua [114:151]

• 30 lines of code
• 7 McCabe index (conditional complexity)

function Tracer:prepareForReport()
    if not ngx.ctx.is_finished then
        self.finish()
    end
    local entrySpan = ngx.ctx.entrySpan
    if not entrySpan then
        return
    end

    local ngxstatus = ngx.var.status
    Span.tag(entrySpan, 'http.status', ngxstatus)
    if tonumber(ngxstatus) >= 500 then
        Span.errorOccurred(entrySpan)
    end

    Span.finish(entrySpan, ngx.now() * 1000)

    local ok, segment = TC.drainAfterFinished(ngx.ctx.tracingContext)
    if not ok then
        return
    end

    local segmentJson, err = json.encode(Segment.transform(segment))
    if not segmentJson then
        ngx.log(ngx.ERR, "failed to encode segment: ", err)
        return
    end
    

    local length, err = metadata_shdict:lpush(Const.segment_queue, segmentJson)
    if not length then
        ngx.log(ngx.ERR, "failed to push segment: ", err)
        return
    end
    

    Util.tablepool_release()
end