1 #include <windows.h>
2 #include <stdio.h>
3
4 HANDLE waitForCtrlBreakEvent;
5
CtrlHandler(DWORD fdwCtrlType)6 BOOL WINAPI CtrlHandler(DWORD fdwCtrlType)
7 {
8 switch (fdwCtrlType)
9 {
10 case CTRL_BREAK_EVENT:
11 SetEvent(waitForCtrlBreakEvent);
12 return TRUE;
13 default:
14 return FALSE;
15 }
16 }
17
main(void)18 int main(void)
19 {
20 waitForCtrlBreakEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
21 if (!waitForCtrlBreakEvent) {
22 fprintf(stderr, "ERROR: Could not create event\n");
23 return 1;
24 }
25
26 if (!SetConsoleCtrlHandler(CtrlHandler, TRUE))
27 {
28 fprintf(stderr, "ERROR: Could not set control handler\n");
29 return 1;
30 }
31
32 // The library must be loaded after the SetConsoleCtrlHandler call
33 // so that the library handler registers after the main program.
34 // This way the library handler gets called first.
35 HMODULE dummyDll = LoadLibrary("dummy.dll");
36 if (!dummyDll) {
37 fprintf(stderr, "ERROR: Could not load dummy.dll\n");
38 return 1;
39 }
40
41 // Call the Dummy function so that Go initialization completes, since
42 // all cgo entry points call out to _cgo_wait_runtime_init_done.
43 if (((int(*)(void))GetProcAddress(dummyDll, "Dummy"))() != 42) {
44 fprintf(stderr, "ERROR: Dummy function did not return 42\n");
45 return 1;
46 }
47
48 printf("ready\n");
49 fflush(stdout);
50
51 if (WaitForSingleObject(waitForCtrlBreakEvent, 5000) != WAIT_OBJECT_0) {
52 fprintf(stderr, "FAILURE: No signal received\n");
53 return 1;
54 }
55
56 return 0;
57 }
58