execute_cmd.h

   1 /* execute_cmd.h - functions from execute_cmd.c. */
   2
   3 /* Copyright (C) 1993-2017 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 #if !defined (_EXECUTE_CMD_H_)
  22 #define _EXECUTE_CMD_H_
  23
  24 #include "stdc.h"
  25
  26 #if defined (ARRAY_VARS)
  27 struct func_array_state
  28   {
  29     ARRAY *funcname_a;
  30     SHELL_VAR *funcname_v;
  31     ARRAY *source_a;
  32     SHELL_VAR *source_v;
  33     ARRAY *lineno_a;
  34     SHELL_VAR *lineno_v;
  35   };
  36 #endif
  37
  38 /* Placeholder for later expansion to include more execution state */
  39 /* XXX - watch out for pid_t */
  40 struct execstate
  41   {
  42     pid_t pid;
  43     int subshell_env;
  44   };
  45
  46
  47 /* Variables delared in execute_cmd.c, used by many other files */
  48 extern int return_catch_flag;
  49 extern int return_catch_value;
  50 extern volatile int last_command_exit_value;
  51 extern int last_command_exit_signal;
  52 extern int builtin_ignoring_errexit;
  53 extern int executing_builtin;
  54 extern int executing_list;
  55 extern int comsub_ignore_return;
  56 extern int subshell_level;
  57 extern int match_ignore_case;
  58 extern int executing_command_builtin;
  59 extern int funcnest, funcnest_max;
  60 extern int evalnest, evalnest_max;
  61 extern int sourcenest, sourcenest_max;
  62 extern int stdin_redir;
  63 extern int line_number_for_err_trap;
  64
  65 extern char *the_printed_command_except_trap;
  66
  67 extern char *this_command_name;
  68 extern SHELL_VAR *this_shell_function;
  69
  70 /* Functions delared in execute_cmd.c, used by many other files */
  71
  72 extern struct fd_bitmap *new_fd_bitmap __P((int));
  73 extern void dispose_fd_bitmap __P((struct fd_bitmap *));
  74 extern void close_fd_bitmap __P((struct fd_bitmap *));
  75 extern int executing_line_number __P((void));
  76 extern int execute_command __P((COMMAND *));
  77 extern int execute_command_internal __P((COMMAND *, int, int, int, struct fd_bitmap *));
  78 extern int shell_execve __P((char *, char **, char **));
  79 extern void setup_async_signals __P((void));
  80
  81 extern void undo_partial_redirects __P((void));
  82 extern void dispose_partial_redirects __P((void));
  83 extern void dispose_exec_redirects __P((void));
  84
  85 extern int execute_shell_function __P((SHELL_VAR *, WORD_LIST *));
  86
  87 extern struct coproc *getcoprocbypid __P((pid_t));
  88 extern struct coproc *getcoprocbyname __P((const char *));
  89
  90 extern void coproc_init __P((struct coproc *));
  91 extern struct coproc *coproc_alloc __P((char *, pid_t));
  92 extern void coproc_dispose __P((struct coproc *));
  93 extern void coproc_flush __P((void));
  94 extern void coproc_close __P((struct coproc *));
  95 extern void coproc_closeall __P((void));
  96 extern void coproc_reap __P((void));
  97 extern pid_t coproc_active __P((void));
  98
  99 extern void coproc_rclose __P((struct coproc *, int));
 100 extern void coproc_wclose __P((struct coproc *, int));
 101 extern void coproc_fdclose __P((struct coproc *, int));
 102
 103 extern void coproc_checkfd __P((struct coproc *, int));
 104 extern void coproc_fdchk __P((int));
 105
 106 extern void coproc_pidchk __P((pid_t, int));
 107
 108 extern void coproc_fdsave __P((struct coproc *));
 109 extern void coproc_fdrestore __P((struct coproc *));
 110
 111 extern void coproc_setvars __P((struct coproc *));
 112 extern void coproc_unsetvars __P((struct coproc *));
 113
 114 #if defined (PROCESS_SUBSTITUTION)
 115 extern void close_all_files __P((void));
 116 #endif
 117
 118 #if defined (ARRAY_VARS)
 119 extern void restore_funcarray_state __P((struct func_array_state *));
 120 #endif
 121
 122 #endif /* _EXECUTE_CMD_H_ */