signal handling for interrupt signals More...

#include <cm.h>
#include <execinfo.h>
#include <signal.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <termios.h>
#include <unistd.h>

Include dependency graph for sig.c:

Macros
#define	MAX_FRAMES 64

Functions
void	sig_dfl_mode ()
	Set signal handlers to default behavior.
void	sig_prog_mode ()
	Set up signal handlers for interrupt signals.
void	signal_handler (int sig_num)
	Signal handler for interrupt signals.
bool	handle_signal (int sig_num)
	Handle received signals and prompt user for action.

Variables
volatile sig_atomic_t	sig_received = 0
bool	f_curses_open = false

Detailed Description

signal handling for interrupt signals

Author: Bill Waller Copyright (c) 2025 MIT License billx.nosp@m.wall.nosp@m.er@gm.nosp@m.ail..nosp@m.com

Date: 2026-02-09

Definition in file sig.c.

Macro Definition Documentation

◆ MAX_FRAMES

#define MAX_FRAMES 64

Definition at line 29 of file sig.c.

Variable Documentation

◆ f_curses_open

bool f_curses_open = false

curses mode is active

Definition at line 33 of file sig.c.

Referenced by action_disposition(), answer_yn(), destroy_curses(), display_error(), handle_signal(), open_curses(), Perror(), and wait_mk_win().

◆ sig_received

volatile sig_atomic_t sig_received = 0

Definition at line 31 of file sig.c.

Referenced by handle_signal(), popup_ckeys(), signal_handler(), and xwgetch().

Macros