1 // Make sure we can throw exceptions from work items executed via
2 // BindIoCompletionCallback.
3 //
4 // RUN: %clangxx_asan %s -o %t.exe
5 // RUN: %run %t.exe 2>&1 | FileCheck %s
6 
7 #include <windows.h>
8 #include <stdio.h>
9 
10 void ThrowAndCatch();
11 
12 __declspec(noinline)
13 void Throw() {
14   fprintf(stderr, "Throw\n");
15 // CHECK: Throw
16   throw 1;
17 }
18 
19 void ThrowAndCatch() {
20   int local;
21   try {
22     Throw();
23   } catch(...) {
24     fprintf(stderr, "Catch\n");
25 // CHECK: Catch
26   }
27 }
28 
29 char buffer[65536];
30 HANDLE done;
31 OVERLAPPED ov;
32 
33 void CALLBACK completion_callback(DWORD error, DWORD bytesRead,
34                                   LPOVERLAPPED pov) {
35   ThrowAndCatch();
36   SetEvent(done);
37 }
38 
39 int main(int argc, char **argv) {
40   done = CreateEvent(0, false, false, "job is done");
41   if (!done)
42     return 1;
43   HANDLE file = CreateFile(
44       argv[0], GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
45       OPEN_EXISTING,
46       FILE_ATTRIBUTE_NORMAL | FILE_FLAG_NO_BUFFERING | FILE_FLAG_OVERLAPPED,
47       NULL);
48   if (!file)
49     return 2;
50   if (!BindIoCompletionCallback(file, completion_callback, 0))
51     return 3;
52 
53   if (!ReadFile(file, buffer, sizeof(buffer), NULL, &ov) &&
54       GetLastError() != ERROR_IO_PENDING)
55     return 4;
56 
57   if (WAIT_OBJECT_0 != WaitForSingleObject(done, 10 * 1000))
58     return 5;
59   fprintf(stderr, "Done!\n");
60 // CHECK: Done!
61 }
62