File: data_ready_event.cpp

package info (click to toggle)
tango 10.0.2%2Bdfsg1-4
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 89,936 kB
  • sloc: cpp: 201,786; sh: 1,645; python: 953; java: 800; perl: 467; javascript: 447; xml: 325; makefile: 272; sql: 72; ruby: 24
file content (224 lines) | stat: -rw-r--r-- 5,516 bytes parent folder | download | duplicates (3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
// NOLINTBEGIN(*)

#include "old_common.h"

class EventCallBack : public Tango::CallBack
{
    void push_event(Tango::DataReadyEventData *);

  public:
    int cb_executed;
    int cb_err;
    int old_sec, old_usec;

    int user_ctr;
};

void EventCallBack::push_event(Tango::DataReadyEventData *event_data)
{
    struct timeval now_timeval = Tango::make_timeval(std::chrono::system_clock::now());

    TEST_LOG << "date : tv_sec = " << now_timeval.tv_sec;
    TEST_LOG << ", tv_usec = " << now_timeval.tv_usec << std::endl;

    auto delta_msec = ((now_timeval.tv_sec - old_sec) * 1000) + ((now_timeval.tv_usec - old_usec) / 1000);

    old_sec = now_timeval.tv_sec;
    old_usec = now_timeval.tv_usec;

    TEST_LOG << "delta_msec = " << delta_msec << std::endl;

    cb_executed++;

    try
    {
        TEST_LOG << "EventCallBack::push_event(): called attribute " << event_data->attr_name << " event "
                 << event_data->event << "\n";
        if(!event_data->err)
        {
            TEST_LOG << "Event data: Attribute data type = " << event_data->attr_data_type
                     << ", User ctr = " << event_data->ctr << std::endl;
            user_ctr = event_data->ctr;
        }
        else
        {
            TEST_LOG << "Error send to callback" << std::endl;
            Tango::Except::print_error_stack(event_data->errors);
        }
    }
    catch(...)
    {
        TEST_LOG << "EventCallBack::push_event(): could not extract data !\n";
    }
}

int main(int argc, char **argv)
{
    DeviceProxy *device;

    if(argc == 1)
    {
        TEST_LOG << "usage: %s device" << std::endl;
        exit(-1);
    }

    std::string device_name = argv[1];

    try
    {
        device = new DeviceProxy(device_name);
    }
    catch(CORBA::Exception &e)
    {
        Except::print_exception(e);
        exit(1);
    }

    TEST_LOG << std::endl << "new DeviceProxy(" << device->name() << ") returned" << std::endl << std::endl;

    try
    {
        //
        // Subscribe to an attribute which is not data ready event enabled should fail
        //

        std::string att_name("Short_attr");

        int eve_id1, eve_id2;
        std::vector<std::string> filters;
        EventCallBack cb;
        cb.cb_executed = 0;
        cb.cb_err = 0;
        cb.old_sec = cb.old_usec = 0;
        cb.user_ctr = 0;

        bool except = true;

        try
        {
            eve_id1 = device->subscribe_event(att_name, Tango::DATA_READY_EVENT, &cb, filters);
            except = false;
        }
        catch(Tango::DevFailed &)
        {
            //            Tango::Except::print_exception(e);
        }

        assert(except == true);

        att_name = "Long_attr";

        //
        // subscribe to a data ready event
        //

        eve_id1 = device->subscribe_event(att_name, Tango::DATA_READY_EVENT, &cb, filters);
        eve_id2 = device->subscribe_event(att_name, Tango::DATA_READY_EVENT, &cb, filters);

        //
        // Check that the attribute is still not polled
        //

        bool po = device->is_attribute_polled(att_name);
        TEST_LOG << "attribute polled : " << po << std::endl;
        assert(po == false);

        //
        // The callback should not have been executed once
        //

        assert(cb.cb_executed == 0);

        TEST_LOG << "   subscribe_event --> OK" << std::endl;

        //
        // Execute the command which will fire an attribute
        // data ready event
        //

        Tango::DevVarLongStringArray dvlsa;
        dvlsa.svalue.length(1);
        dvlsa.lvalue.length(1);
        dvlsa.lvalue[0] = 10;
        dvlsa.svalue[0] = Tango::string_dup(att_name.c_str());
        DeviceData d_in;
        d_in << dvlsa;
        device->command_inout("PushDataReady", d_in);

        std::this_thread::sleep_for(std::chrono::seconds(1));

        assert(cb.cb_executed == 2);
        assert(cb.user_ctr == 10);

        //
        // Redo the command several times
        //

        dvlsa.lvalue[0] = 15;
        d_in << dvlsa;
        device->command_inout("PushDataReady", d_in);

        dvlsa.lvalue[0] = 16;
        d_in << dvlsa;
        device->command_inout("PushDataReady", d_in);

        dvlsa.lvalue[0] = 17;
        d_in << dvlsa;
        device->command_inout("PushDataReady", d_in);

        std::this_thread::sleep_for(std::chrono::seconds(1));

        assert(cb.cb_executed == 8);
        assert(cb.user_ctr == 17);

        TEST_LOG << "   data_ready_event --> OK" << std::endl;

        //
        // Server push event on a non-exiting attribute
        //

        bool received_err = false;
        std::string err_reason;

        dvlsa.svalue[0] = Tango::string_dup("bidon");
        d_in << dvlsa;

        try
        {
            device->command_inout("PushDataReady", d_in);
        }
        catch(Tango::DevFailed &e)
        {
            received_err = true;
            err_reason = e.errors[0].reason;
        }

        assert(received_err == true);
        assert(err_reason == API_AttrNotFound);

        //
        // unsubscribe to the event
        //

        device->unsubscribe_event(eve_id1);
        device->unsubscribe_event(eve_id2);

        TEST_LOG << "   unsubscribe_event --> OK" << std::endl;
    }
    catch(Tango::DevFailed &e)
    {
        Except::print_exception(e);
        exit(-1);
    }
    catch(CORBA::Exception &ex)
    {
        Except::print_exception(ex);
        exit(-1);
    }

    delete device;

    return 0;
}

// NOLINTEND(*)