66 lines
2.6 KiB
C
66 lines
2.6 KiB
C
/**
|
|
* @file BSignal.h
|
|
* @author Ambroz Bizjak <ambrop7@gmail.com>
|
|
*
|
|
* @section LICENSE
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the author nor the
|
|
* names of its contributors may be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
|
|
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
|
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* @section DESCRIPTION
|
|
*
|
|
* A global object for catching program termination requests.
|
|
*/
|
|
|
|
#ifndef BADVPN_SYSTEM_BSIGNAL_H
|
|
#define BADVPN_SYSTEM_BSIGNAL_H
|
|
|
|
#include <misc/debug.h>
|
|
#include <system/BReactor.h>
|
|
|
|
typedef void (*BSignal_handler) (void *user);
|
|
|
|
/**
|
|
* Initializes signal handling.
|
|
* The object is created in not capturing state.
|
|
* {@link BLog_Init} must have been done.
|
|
*
|
|
* WARNING: make sure this won't interfere with other components:
|
|
* - On Linux, this uses {@link BUnixSignal} to catch SIGTERM, SIGINT
|
|
* and SIGHUP.
|
|
* - on Windows, this sets up a handler with SetConsoleCtrlHandler.
|
|
*
|
|
* @param reactor {@link BReactor} from which the handler will be called
|
|
* @param handler callback function invoked from the reactor
|
|
* @param user value passed to callback function
|
|
* @return 1 on success, 0 on failure
|
|
*/
|
|
int BSignal_Init (BReactor *reactor, BSignal_handler handler, void *user) WARN_UNUSED;
|
|
|
|
/**
|
|
* Finishes signal handling.
|
|
* {@link BSignal_Init} must not be called again.
|
|
*/
|
|
void BSignal_Finish (void);
|
|
|
|
#endif
|