lib/util/signal.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3    signal handling functions
   4
   5    Copyright (C) Andrew Tridgell 1998
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #ifndef _SAMBA_UTIL_SIGNAL_H_
  22 #define _SAMBA_UTIL_SIGNAL_H_
  23
  24 #include <signal.h>
  25 #include <stdbool.h>
  26
  27 /**
  28  Block sigs.
  29 **/
  30 void BlockSignals(bool block, int signum);
  31
  32 /**
  33  Catch a signal. This should implement the following semantics:
  34
  35  1) The handler remains installed after being called.
  36  2) The signal should be blocked during handler execution.
  37 **/
  38 void (*CatchSignal(int signum,void (*handler)(int )))(int);
  39
  40 /**
  41  Ignore SIGCLD via whatever means is necessary for this OS.
  42 **/
  43 void (*CatchChild(void))(int);
  44
  45 /**
  46  Catch SIGCLD but leave the child around so it's status can be reaped.
  47 **/
  48 void (*CatchChildLeaveStatus(void))(int);
  49
  50 #endif /* _SAMBA_UTIL_SIGNAL_H_ */