#define _WIN32_WINNT 0x400 #include "test.h" static int washere = 0; static void * func(void * arg) { washere = 1; Sleep(1000); return 0; } static void anotherEnding () { /* * Switched context */ washere++; pthread_exit(0); } int main() { pthread_t t; HANDLE hThread; assert(pthread_create(&t, NULL, func, NULL) == 0); hThread = pthread_gethandle (t); Sleep(500); SuspendThread(hThread); if (WaitForSingleObject(hThread, 0) == WAIT_TIMEOUT) { /* * Ok, thread did not exit before we got to it. */ CONTEXT context; context.ContextFlags = CONTEXT_CONTROL; GetThreadContext(hThread, &context); #ifdef _M_X64 context.Rip = (uintptr_t) anotherEnding; #else context.Eip = (uintptr_t) anotherEnding; #endif SetThreadContext(hThread, &context); ResumeThread(hThread); } else { printf("Exited early\n"); fflush(stdout); } Sleep(1000); assert(washere == 2); return 0; }