How do you catch control-c in NT oci programs?

From: Chris Hafey <chafey_at_ecst.csuchico.edu>
Date: 1997/03/21
Message-ID: <5gumte$anc_at_charnel.ecst.csuchico.edu>#1/1

Hello
  Can someone please explain how to catch control C events in the Windows NT platform? After I logon to the database with orlon(), my control-c handler becomes disabled. I have tried both signal() and the Win32 specific SetConsoleCtrlHandler() function. Note that my handler is called if I am not logged into the database! Any ideas?

Oracle 7.3 oci libraries
Windows NT 4.0
MSVC 4.0
Console Application

Chris Hafey

---

#include <windows.h>
#include <signal.h>
#include <iostream.h>

extern "C" {

	#include <oratypes.h>
	#include <ocidfn.h>
	#include <ociapr.h>

}

Lda_Def         lda;
ub1             hda[256];

BOOL HandlerFunc(DWORD ctrlChar)
{

	switch(ctrlChar) {
		case CTRL_C_EVENT:
			cout << "Control-C caught" << endl;
			return FALSE;
	}

 return FALSE;
}
static void
sig_int(int signo)
{

	cout << "Control-C caught" << endl;
	exit(3);
	return;

}

int main(int argc, char **argv)
{
#ifdef USE_WIN32_HANDLER

	if (SetConsoleCtrlHandler((PHANDLER_ROUTINE)HandlerFunc, TRUE) != TRUE) {
		cout << "Can't set console control handler" << endl;
		exit(1);
	}


#else

	if (signal(SIGINT, sig_int) == SIG_ERR) {
		cout << "Can't catch SIGINT" << endl;
		exit(2);
	}


#endif


	if (orlon(&lda, hda, (text *)"scott/tiger", -1, (text *) 0, -1, 0)) {
		cout << "Logon failed" << endl;
	} else {
 cout << "Logon Success" << endl;
	}	
	// Loop and wait for a control-c
	while (1) {
		Sleep(1000);
	}

 return 0;
}  

-- 
chafey_at_ecst.csuchico.edu    	http://www.ecst.csuchico.edu/~chafey

Received on Fri Mar 21 1997 - 00:00:00 CET