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
15using namespace lldb;
16using namespace std;
17
18// listener thread control
19extern atomic<bool> g_done;
20
21multithreaded_queue<string> g_thread_descriptions;
22multithreaded_queue<string> g_frame_functions;
23
24extern SBListener g_listener;
25
26void 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).GetFunction().GetName();
49          if (function_name)
50            g_frame_functions.push(function_name);
51        }
52      }
53    }
54  }
55}
56
57void 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}
69