1 files changed, 70 insertions, 0 deletions
diff --git a/winpr/libwinpr/comm/test/TestCommMonitor.c b/winpr/libwinpr/comm/test/TestCommMonitor.c
new file mode 100644
index 0000000..fe28a86
--- /dev/null
+++ b/winpr/libwinpr/comm/test/TestCommMonitor.c
@@ -0,0 +1,70 @@
+
+#include <winpr/crt.h>
+#include <winpr/comm.h>
+#include <winpr/file.h>
+#include <winpr/synch.h>
+#include <winpr/handle.h>
+
+int TestCommMonitor(int argc, char* argv[])
+{
+	HANDLE hComm;
+	DWORD dwError;
+	BOOL fSuccess;
+	DWORD dwEvtMask;
+	OVERLAPPED overlapped = { 0 };
+	LPCSTR lpFileName = "\\\\.\\COM1";
+
+	hComm = CreateFileA(lpFileName, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING,
+	                    FILE_FLAG_OVERLAPPED, NULL);
+
+	if (!hComm || (hComm == INVALID_HANDLE_VALUE))
+	{
+		printf("CreateFileA failure: %s\n", lpFileName);
+		return -1;
+	}
+
+	fSuccess = SetCommMask(hComm, EV_CTS | EV_DSR);
+
+	if (!fSuccess)
+	{
+		printf("SetCommMask failure: GetLastError() = %" PRIu32 "\n", GetLastError());
+		return -1;
+	}
+
+	if (!(overlapped.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL)))
+	{
+		printf("CreateEvent failed: GetLastError() = %" PRIu32 "\n", GetLastError());
+		return -1;
+	}
+
+	if (WaitCommEvent(hComm, &dwEvtMask, &overlapped))
+	{
+		if (dwEvtMask & EV_DSR)
+		{
+			printf("EV_DSR\n");
+		}
+
+		if (dwEvtMask & EV_CTS)
+		{
+			printf("EV_CTS\n");
+		}
+	}
+	else
+	{
+		dwError = GetLastError();
+
+		if (dwError == ERROR_IO_PENDING)
+		{
+			printf("ERROR_IO_PENDING\n");
+		}
+		else
+		{
+			printf("WaitCommEvent failure: GetLastError() = %" PRIu32 "\n", dwError);
+			return -1;
+		}
+	}
+
+	CloseHandle(hComm);
+
+	return 0;
+}