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//
// Verify that console selection blocks writes to an inactive console screen
// buffer. Writes TEST PASSED or TEST FAILED to the popup console window.
//
#include <windows.h>
#include <stdio.h>
#include <string>
#include "TestUtil.cc"
const int SC_CONSOLE_MARK = 0xFFF2;
const int SC_CONSOLE_SELECT_ALL = 0xFFF5;
bool g_useMark = false;
CALLBACK DWORD pausingThread(LPVOID dummy)
{
HWND hwnd = GetConsoleWindow();
trace("Sending selection to freeze");
SendMessage(hwnd, WM_SYSCOMMAND,
g_useMark ? SC_CONSOLE_MARK :
SC_CONSOLE_SELECT_ALL,
0);
Sleep(1000);
trace("Sending escape WM_CHAR to unfreeze");
SendMessage(hwnd, WM_CHAR, 27, 0x00010001);
Sleep(1000);
}
static HANDLE createBuffer() {
HANDLE buf = CreateConsoleScreenBuffer(
GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
CONSOLE_TEXTMODE_BUFFER,
NULL);
ASSERT(buf != INVALID_HANDLE_VALUE);
return buf;
}
static void runTest(bool useMark, bool createEarly) {
trace("=======================================");
trace("useMark=%d createEarly=%d", useMark, createEarly);
g_useMark = useMark;
HANDLE buf = INVALID_HANDLE_VALUE;
if (createEarly) {
buf = createBuffer();
}
CreateThread(NULL, 0,
pausingThread, NULL,
0, NULL);
Sleep(500);
if (!createEarly) {
trace("Creating buffer");
TimeMeasurement tm1;
buf = createBuffer();
const double elapsed1 = tm1.elapsed();
if (elapsed1 >= 0.250) {
printf("!!! TEST FAILED !!!\n");
Sleep(2000);
return;
}
}
trace("Writing to aux buffer");
TimeMeasurement tm2;
DWORD actual = 0;
BOOL ret = WriteConsoleW(buf, L"HI", 2, &actual, NULL);
const double elapsed2 = tm2.elapsed();
trace("Writing to aux buffer: finished: ret=%d actual=%d (elapsed=%1.3f)", ret, actual, elapsed2);
if (elapsed2 < 0.250) {
printf("!!! TEST FAILED !!!\n");
} else {
printf("TEST PASSED\n");
}
Sleep(2000);
}
int main(int argc, char **argv) {
if (argc == 1) {
startChildProcess(L"child");
return 0;
}
std::string arg = argv[1];
if (arg == "child") {
for (int useMark = 0; useMark <= 1; useMark++) {
for (int createEarly = 0; createEarly <= 1; createEarly++) {
runTest(useMark, createEarly);
}
}
printf("done...\n");
Sleep(1000);
}
return 0;
}
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