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Vendor import of lldb trunk r256945:
[FreeBSD/FreeBSD.git] / packages / Python / lldbsuite / test / api / multithreaded / test_listener_event_process_state.cpp
1
2 // LLDB C++ API Test: verify the event description as obtained by calling
3 // SBEvent::GetCStringFromEvent that is received by an
4 // SBListener object registered with a process with a breakpoint.
5
6 #include <atomic>
7 #include <iostream>
8 #include <string>
9 #include <thread>
10
11 #include "lldb-headers.h"
12
13 #include "common.h"
14
15 using namespace lldb;
16 using namespace std;
17
18 // listener thread control
19 extern atomic<bool> g_done;
20
21 multithreaded_queue<string> g_thread_descriptions;
22 multithreaded_queue<string> g_frame_functions;
23
24 extern SBListener g_listener;
25
26 void listener_func() {
27   while (!g_done) {
28     SBEvent event;
29     bool got_event = g_listener.WaitForEvent(1, event);
30     if (got_event) {
31       if (!event.IsValid())
32         throw Exception("event is not valid in listener thread");
33
34       // send process description
35       SBProcess process = SBProcess::GetProcessFromEvent(event);
36       SBStream description;
37
38       for (int i = 0; i < process.GetNumThreads(); ++i) {
39         // send each thread description
40         description.Clear();
41         SBThread thread = process.GetThreadAtIndex(i);
42         thread.GetDescription(description);
43         g_thread_descriptions.push(description.GetData());
44
45         // send each frame function name
46         uint32_t num_frames = thread.GetNumFrames();
47         for(int j = 0; j < num_frames; ++j) {
48           const char* function_name = thread.GetFrameAtIndex(j).GetSymbol().GetName();
49           if (function_name)
50             g_frame_functions.push(function_name);
51         }
52       }
53     }
54   }
55 }
56
57 void check_listener(SBDebugger &dbg) {
58   // check thread description
59   bool got_description = false;
60   string desc = g_thread_descriptions.pop(5, got_description);
61   if (!got_description)
62     throw Exception("Expected at least one thread description string");
63
64   // check at least one frame has a function name
65   desc = g_frame_functions.pop(5, got_description);
66   if (!got_description)
67     throw Exception("Expected at least one frame function name string");
68 }