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consolewaiter.cpp
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88 lines (77 loc) · 2.03 KB
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/**
* @file win32/consolewaiter.cpp
* @brief Win32 event/timeout handling, listens for console input
*
* (c) 2013-2016 by Mega Limited, Auckland, New Zealand
*
* This file is part of the MEGA SDK - Client Access Engine.
*
* Applications using the MEGA API must present a valid application key
* and comply with the the rules set forth in the Terms of Service.
*
* The MEGA SDK is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* @copyright Simplified (2-clause) BSD License.
*
* You should have received a copy of the license along with this
* program.
*/
#include "mega.h"
#include "megaconsolewaiter.h"
#include "megaconsole.h"
namespace mega {
WinConsoleWaiter::WinConsoleWaiter(WinConsole* con)
#ifdef NO_READLINE
: console(con)
#endif
{
#ifndef NO_READLINE
DWORD dwMode;
hInput = GetStdHandle(STD_INPUT_HANDLE);
GetConsoleMode(hInput, &dwMode);
SetConsoleMode(hInput, dwMode & ~(ENABLE_MOUSE_INPUT | ENABLE_WINDOW_INPUT));
FlushConsoleInputBuffer(hInput);
#endif
}
// wait for events (socket, I/O completion, timeout + application events)
// ds specifies the maximum amount of time to wait in deciseconds (or ~0 if no
// timeout scheduled)
int WinConsoleWaiter::wait()
{
int r;
#ifdef NO_READLINE
if (console)
{
addhandle(console->inputAvailableHandle(), 0);
}
#else
addhandle(hInput, 0);
#endif
// aggregated wait
r = WinWaiter::wait();
// is it a network- or filesystem-triggered wakeup?
if (r)
{
return r;
}
#ifdef NO_READLINE
if (console && console->consolePeek())
{
return HAVESTDIN;
}
#else
// FIXME: improve this gruesome nonblocking console read-simulating kludge
if (_kbhit())
{
return HAVESTDIN;
}
// this assumes that the user isn't typing too fast
INPUT_RECORD ir[1024];
DWORD dwNum;
ReadConsoleInput(hInput, ir, 1024, &dwNum);
#endif
return 0;
}
} // namespace