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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once
#include <signal.h>
#include "macro.h"
int reset_all_signal_handlers(void);
int reset_signal_mask(void);
int sigaction_many_internal(const struct sigaction *sa, ...);
#define ignore_signals(...) \
sigaction_many_internal( \
&(const struct sigaction) { \
.sa_handler = SIG_IGN, \
.sa_flags = SA_RESTART \
}, \
__VA_ARGS__, \
-1)
#define default_signals(...) \
sigaction_many_internal( \
&(const struct sigaction) { \
.sa_handler = SIG_DFL, \
.sa_flags = SA_RESTART \
}, \
__VA_ARGS__, \
-1)
#define sigaction_many(sa, ...) \
sigaction_many_internal(sa, __VA_ARGS__, -1)
int sigset_add_many(sigset_t *ss, ...);
int sigprocmask_many(int how, sigset_t *old, ...);
const char *signal_to_string(int i) _const_;
int signal_from_string(const char *s) _pure_;
void nop_signal_handler(int sig);
static inline void block_signals_reset(sigset_t *ss) {
assert_se(sigprocmask(SIG_SETMASK, ss, NULL) >= 0);
}
#define BLOCK_SIGNALS(...) \
_cleanup_(block_signals_reset) _unused_ sigset_t _saved_sigset = ({ \
sigset_t _t; \
assert_se(sigprocmask_many(SIG_BLOCK, &_t, __VA_ARGS__, -1) >= 0); \
_t; \
})
static inline bool SIGNAL_VALID(int signo) {
return signo > 0 && signo < _NSIG;
}
static inline const char* signal_to_string_with_check(int n) {
if (!SIGNAL_VALID(n))
return NULL;
return signal_to_string(n);
}
int signal_is_blocked(int sig);
int pop_pending_signal_internal(int sig, ...);
#define pop_pending_signal(...) pop_pending_signal_internal(__VA_ARGS__, -1)
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