bashjmp.h

   1 /* bashjmp.h -- wrapper for setjmp.h with necessary bash definitions. */
   2
   3 /* Copyright (C) 1987-2009 Free Software Foundation, Inc.
   4
   5    This file is part of GNU Bash, the Bourne Again SHell.
   6
   7    Bash 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    Bash 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 Bash.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #ifndef _BASHJMP_H_
  22 #define _BASHJMP_H_
  23
  24 #include "posixjmp.h"
  25
  26 extern procenv_t        top_level;
  27 extern procenv_t        subshell_top_level;
  28 extern procenv_t        return_catch;   /* used by `return' builtin */
  29
  30 #define SHFUNC_RETURN() longjmp (return_catch, 1)
  31
  32 #define COPY_PROCENV(old, save) \
  33         xbcopy ((char *)old, (char *)save, sizeof (procenv_t));
  34
  35 /* Values for the second argument to longjmp/siglongjmp. */
  36 #define NOT_JUMPED      0       /* Not returning from a longjmp. */
  37 #define FORCE_EOF       1       /* We want to stop parsing. */
  38 #define DISCARD         2       /* Discard current command. */
  39 #define EXITPROG        3       /* Unconditionally exit the program now. */
  40 #define ERREXIT         4       /* Exit due to error condition */
  41 #define SIGEXIT         5       /* Exit due to fatal terminating signal */
  42
  43 #endif /* _BASHJMP_H_ */