Method PopAnnotation

src/brpc/span.cpp:418–442

}

bool SpanInfoExtractor::PopAnnotation(
    int64_t before_this_time, int64_t* time, std::string* annotation) {
    for (; _sp != NULL; ++_sp) {
        butil::StringSplitter sp_time(_sp.field(), _sp.field() + _sp.length(), ' ');
        if (sp_time) {
            char* endptr;
            const int64_t anno_time = strtoll(sp_time.field(), &endptr, 10);
            if (*endptr == ' ') {
                if (before_this_time <= anno_time) {
                    return false;
                }
                *time = anno_time;
                ++sp_time;
                annotation->assign(
                    sp_time.field(),
                    _sp.field() + _sp.length() - sp_time.field());
                ++_sp;
                return true;
            }
        }
        LOG(ERROR) << "Unknown annotation: "
                    << std::string(_sp.field(), _sp.length());
    }
    return false;
}

bool CanAnnotateSpan() {
    return HasTlsParentSpan();