diff options
Diffstat (limited to 'scratch/bash-3.1/trap.h')
| -rw-r--r-- | scratch/bash-3.1/trap.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/scratch/bash-3.1/trap.h b/scratch/bash-3.1/trap.h new file mode 100644 index 0000000..d1600e0 --- /dev/null +++ b/scratch/bash-3.1/trap.h @@ -0,0 +1,98 @@ +/* trap.h -- data structures used in the trap mechanism. */ + +/* Copyright (C) 1993 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash is free software; you can redistribute it and/or modify it under + the terms of the GNU General Public License as published by the Free + Software Foundation; either version 2, or (at your option) any later + version. + + Bash is distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + for more details. + + You should have received a copy of the GNU General Public License along + with Bash; see the file COPYING. If not, write to the Free Software + Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */ + +#if !defined (_TRAP_H_) +#define _TRAP_H_ + +#include "stdc.h" + +#if !defined (SIG_DFL) +#include "bashtypes.h" +#include <signal.h> +#endif /* SIG_DFL */ + +#if !defined (NSIG) +#define NSIG 64 +#endif /* !NSIG */ + +#define NO_SIG -1 +#define DEFAULT_SIG SIG_DFL +#define IGNORE_SIG SIG_IGN + +/* Special shell trap names. */ +#define DEBUG_TRAP NSIG +#define ERROR_TRAP NSIG+1 +#define RETURN_TRAP NSIG+2 +#define EXIT_TRAP 0 + +/* system signals plus special bash traps */ +#define BASH_NSIG NSIG+3 + +/* Flags values for decode_signal() */ +#define DSIG_SIGPREFIX 0x01 /* don't alllow `SIG' PREFIX */ +#define DSIG_NOCASE 0x02 /* case-insensitive comparison */ + +#define signal_object_p(x,f) (decode_signal (x,f) != NO_SIG) + +#define TRAP_STRING(s) \ + (signal_is_trapped (s) && signal_is_ignored (s) == 0) ? trap_list[s] \ + : (char *)NULL + +extern char *trap_list[]; + +/* Externally-visible functions declared in trap.c. */ +extern void initialize_traps __P((void)); + +extern void run_pending_traps __P((void)); + +extern void maybe_set_sigchld_trap __P((char *)); +extern void set_sigchld_trap __P((char *)); + +extern void set_debug_trap __P((char *)); +extern void set_error_trap __P((char *)); +extern void set_return_trap __P((char *)); + +extern void set_sigint_trap __P((char *)); +extern void set_signal __P((int, char *)); + +extern void restore_default_signal __P((int)); +extern void ignore_signal __P((int)); +extern int run_exit_trap __P((void)); +extern void run_trap_cleanup __P((int)); +extern int run_debug_trap __P((void)); +extern void run_error_trap __P((void)); +extern void run_return_trap __P((void)); + +extern void free_trap_strings __P((void)); +extern void reset_signal_handlers __P((void)); +extern void restore_original_signals __P((void)); + +extern char *signal_name __P((int)); + +extern int decode_signal __P((char *, int)); +extern void run_interrupt_trap __P((void)); +extern int maybe_call_trap_handler __P((int)); +extern int signal_is_trapped __P((int)); +extern int signal_is_ignored __P((int)); +extern int signal_is_special __P((int)); +extern void set_signal_ignored __P((int)); +extern int signal_in_progress __P((int)); + +#endif /* _TRAP_H_ */ |