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/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 1998-2012. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* %CopyrightEnd%
*/
/*
** This is an entry point for port programs,
** it is used to set the console control handler of the process when
** erlang process is run as a service.
** Note that this entry point is only for
** Console programs, Windowing programs can just route the WM_QUERYENDSESSION
** and WM_ENDSESSION to the default window procedure to aquire the same
** functionality.
**
** Creator Patrik Nyblom
**
** Notes:
** You would really not want to use ANY of the standard library in this
** routine, the standard library is not yet initiated...
*/
#include <windows.h>
/*
** The runtime libraries startup routine in the Microsoft Visual C CRT
*/
extern void mainCRTStartup(void);
/*
** A Console control handler that ignores the logoff events,
** and lets the default handler take care of other events.
*/
BOOL WINAPI erl_port_default_handler(DWORD ctrl){
if(ctrl == CTRL_LOGOFF_EVENT)
return TRUE;
if(ctrl == CTRL_SHUTDOWN_EVENT)
return TRUE;
return FALSE;
}
/*
** This is the entry point, it takes no parameters and never returns.
*/
void erl_port_entry(void){
char buffer[2];
/*
* We assume we're running as a service if this environment variable
* is defined
*/
if(GetEnvironmentVariable("ERLSRV_SERVICE_NAME",buffer,(DWORD) 2)){
#ifdef HARDDEBUG
DWORD dummy;
WriteFile(GetStdHandle(STD_OUTPUT_HANDLE),
"Setting handler\r\n",17,&dummy, NULL);
#endif /* HARDDEBUG */
/*
** Actually set the control handler
*/
SetConsoleCtrlHandler(&erl_port_default_handler, TRUE);
}
/*
** Call the CRT's real startup routine.
*/
mainCRTStartup();
}
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