1 /* Copyright (C) 2007 Andre Noll <maan@tuebingen.mpg.de>, see file COPYING. */
3 /** \file signal.h exported symbols from signal.c */
6 * Task for signal handling.
9 /** The signal pipe. */
11 /** The associated task structure. */
16 * A generic pre-select method for signal tasks.
18 * \param s Passed to para_fd_set().
19 * \param context Signal task pointer.
21 * This convenience helper is called from several programs which need to handle
22 * signals, including para_server and para_audiod. These programs define a
23 * signal task structure and set its ->pre_select method to this function which
24 * adds the file descriptor of the signal task to the set of descriptors to be
25 * watched in the next select() call.
27 * Although the second parameter must be in fact a pointer to a signal_task
28 * structure, the parameter is specified as void * here to match the
29 * ->pre_select method of struct task.
31 _static_inline_
void signal_pre_select(struct sched
*s
, void *context
)
33 struct signal_task
*st
= context
;
34 para_fd_set(st
->fd
, &s
->rfds
, &s
->max_fileno
);
37 struct signal_task
*signal_init_or_die(void);
38 void para_sigaction(int sig
, void (*handler
)(int));
39 void para_install_sighandler(int);
40 int para_reap_child(pid_t
*pid
);
41 int para_next_signal(fd_set
*rfds
);
42 void signal_shutdown(struct signal_task
*st
);
43 void para_block_signal(int sig
);
44 void para_unblock_signal(int sig
);