xref: /openbmc/telemetry/tests/src/dbus_environment.hpp (revision 8069771c0db62887b72aa2b8c51cd64eb5f99b2d)
1 #pragma once
2 
3 #include "types/duration_type.hpp"
4 
5 #include <sdbusplus/asio/object_server.hpp>
6 #include <sdbusplus/asio/property.hpp>
7 
8 #include <future>
9 #include <thread>
10 
11 #include <gmock/gmock.h>
12 
13 class DbusEnvironment : public ::testing::Environment
14 {
15   public:
16     ~DbusEnvironment();
17 
18     void SetUp() override;
19     void TearDown() override;
20     void teardown();
21 
22     static boost::asio::io_context& getIoc();
23     static std::shared_ptr<sdbusplus::asio::connection> getBus();
24     static std::shared_ptr<sdbusplus::asio::object_server> getObjServer();
25     static const char* serviceName();
26     static std::function<void()> setPromise(std::string_view name);
27     static void sleepFor(Milliseconds);
28     static Milliseconds measureTime(std::function<void()>);
29 
30     static void synchronizeIoc()
31     {
32         while (ioc.poll() > 0)
33         {}
34     }
35 
36     template <class Functor>
37     static void synchronizedPost(Functor&& functor)
38     {
39         boost::asio::post(ioc, std::forward<Functor>(functor));
40         synchronizeIoc();
41     }
42 
43     template <class T, class F>
44     static T waitForFutures(std::vector<std::future<T>> futures, T init,
45                             F&& accumulator,
46                             Milliseconds timeout = std::chrono::seconds(10))
47     {
48         constexpr auto precission = Milliseconds(10);
49         auto elapsed = Milliseconds(0);
50 
51         auto sum = init;
52         for (auto& future : futures)
53         {
54             while (future.valid() && elapsed < timeout)
55             {
56                 synchronizeIoc();
57 
58                 if (future.wait_for(precission) == std::future_status::ready)
59                 {
60                     sum = accumulator(sum, future.get());
61                 }
62                 else
63                 {
64                     elapsed += precission;
65                 }
66             }
67         }
68 
69         if (elapsed >= timeout)
70         {
71             throw std::runtime_error("Timed out while waiting for future");
72         }
73 
74         return sum;
75     }
76 
77     template <class T>
78     static T waitForFuture(std::future<T> future,
79                            Milliseconds timeout = std::chrono::seconds(10))
80     {
81         std::vector<std::future<T>> futures;
82         futures.emplace_back(std::move(future));
83 
84         return waitForFutures(
85             std::move(futures), T{},
86             [](auto, const auto& value) { return value; }, timeout);
87     }
88 
89     static bool waitForFuture(std::string_view name,
90                               Milliseconds timeout = std::chrono::seconds(10));
91 
92     static bool waitForFutures(std::string_view name,
93                                Milliseconds timeout = std::chrono::seconds(10));
94 
95   private:
96     static std::future<bool> getFuture(std::string_view name);
97 
98     static boost::asio::io_context ioc;
99     static std::shared_ptr<sdbusplus::asio::connection> bus;
100     static std::shared_ptr<sdbusplus::asio::object_server> objServer;
101     static std::map<std::string, std::vector<std::future<bool>>> futures;
102     static bool setUp;
103 };
104