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// ConsoleClose.cpp
#include "StdAfx.h"
#include "ConsoleClose.h"
#include <signal.h>
static int g_BreakCounter = 0;
static const int kBreakAbortThreshold = 2;
namespace NConsoleClose {
static void HandlerRoutine(int)
{
g_BreakCounter++;
if (g_BreakCounter < kBreakAbortThreshold)
return ;
exit(EXIT_FAILURE);
}
bool TestBreakSignal()
{
return (g_BreakCounter > 0);
}
void CheckCtrlBreak()
{
if (TestBreakSignal())
throw CCtrlBreakException();
}
CCtrlHandlerSetter::CCtrlHandlerSetter()
{
memo_sig_int = signal(SIGINT,HandlerRoutine); // CTRL-C
if (memo_sig_int == SIG_ERR)
throw "SetConsoleCtrlHandler fails (SIGINT)";
memo_sig_term = signal(SIGTERM,HandlerRoutine); // for kill -15 (before "kill -9")
if (memo_sig_term == SIG_ERR)
throw "SetConsoleCtrlHandler fails (SIGTERM)";
}
CCtrlHandlerSetter::~CCtrlHandlerSetter()
{
signal(SIGINT,memo_sig_int); // CTRL-C
signal(SIGTERM,memo_sig_term); // kill {pid}
}
}
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