1 // Make sure we can throw exceptions from work items executed via
2 // BindIoCompletionCallback.
3 //
4 // Clang doesn't support exceptions on Windows yet, so for the time being we
5 // build this program in two parts: the code with exceptions is built with CL,
6 // the rest is built with Clang. This represents the typical scenario when we
7 // build a large project using "clang-cl -fallback -fsanitize=address".
8 //
9 // RUN: %clangxx_asan %s -o %t.exe
10 // RUN: %run %t.exe 2>&1 | FileCheck %s
11
12 #include <windows.h>
13 #include <stdio.h>
14
15 void ThrowAndCatch();
16
17 __declspec(noinline)
Throw()18 void Throw() {
19 fprintf(stderr, "Throw\n");
20 // CHECK: Throw
21 throw 1;
22 }
23
ThrowAndCatch()24 void ThrowAndCatch() {
25 int local;
26 try {
27 Throw();
28 } catch(...) {
29 fprintf(stderr, "Catch\n");
30 // CHECK: Catch
31 }
32 }
33
34 char buffer[65536];
35 HANDLE done;
36 OVERLAPPED ov;
37
completion_callback(DWORD error,DWORD bytesRead,LPOVERLAPPED pov)38 void CALLBACK completion_callback(DWORD error, DWORD bytesRead,
39 LPOVERLAPPED pov) {
40 ThrowAndCatch();
41 SetEvent(done);
42 }
43
main(int argc,char ** argv)44 int main(int argc, char **argv) {
45 done = CreateEvent(0, false, false, "job is done");
46 if (!done)
47 return 1;
48 HANDLE file = CreateFile(
49 argv[0], GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
50 OPEN_EXISTING,
51 FILE_ATTRIBUTE_NORMAL | FILE_FLAG_NO_BUFFERING | FILE_FLAG_OVERLAPPED,
52 NULL);
53 if (!file)
54 return 2;
55 if (!BindIoCompletionCallback(file, completion_callback, 0))
56 return 3;
57
58 if (!ReadFile(file, buffer, sizeof(buffer), NULL, &ov) &&
59 GetLastError() != ERROR_IO_PENDING)
60 return 4;
61
62 if (WAIT_OBJECT_0 != WaitForSingleObject(done, 10 * 1000))
63 return 5;
64 fprintf(stderr, "Done!\n");
65 // CHECK: Done!
66 }
67