aa73311289
This adds the implementation for: get_collectd - return a single collectd value get_collectd_items - list the registerred collectd
74 lines
2.2 KiB
C++
74 lines
2.2 KiB
C++
/*
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* Copyright 2015 Cloudius Systems
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*/
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#include "collectd.hh"
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#include "api/api-doc/collectd.json.hh"
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#include "core/scollectd.hh"
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#include "core/scollectd_api.hh"
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#include "endian.h"
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#include <boost/range/irange.hpp>
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namespace api {
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using namespace scollectd;
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namespace cd = httpd::collectd_json;
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static auto transformer(const std::vector<collectd_value>& values) {
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cd::collectd_value collected_value;
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for (auto v: values) {
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switch (v._type) {
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case scollectd::data_type::GAUGE:
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collected_value.values.push(v.u._d);
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break;
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case scollectd::data_type::DERIVE:
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collected_value.values.push(v.u._i);
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break;
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default:
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collected_value.values.push(v.u._ui);
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break;
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}
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}
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return collected_value;
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}
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void set_collectd(http_context& ctx, routes& r) {
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cd::get_collectd.set(r, [&ctx](std::unique_ptr<request> req) {
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auto id = make_shared<scollectd::type_instance_id>(req->param["pluginid"],
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req->get_query_param("instance"), req->get_query_param("type"),
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req->get_query_param("type_instance"));
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return do_with(std::vector<cd::collectd_value>(), [id] (auto& vec) {
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vec.resize(smp::count);
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return parallel_for_each(boost::irange(0u, smp::count), [&vec, id] (auto cpu) {
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return smp::submit_to(cpu, [id = *id] {
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return scollectd::get_collectd_value(id);
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}).then([&vec, cpu] (auto res) {
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vec[cpu] = transformer(res);
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});
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}).then([&vec] {
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return make_ready_future<json::json_return_type>(vec);
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});
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});
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});
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cd::get_collectd_items.set(r, [](const_req req) {
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std::vector<cd::type_instance_id> res;
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auto ids = scollectd::get_collectd_ids();
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for (auto i: ids) {
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cd::type_instance_id id;
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id.plugin = i.plugin();
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id.plugin_instance = i.plugin_instance();
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id.type = i.type();
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id.type_instance = i.type_instance();
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res.push_back(id);
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}
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return res;
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});
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}
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}
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