diff options
Diffstat (limited to 'src/basic/signal-util.h')
| -rw-r--r-- | src/basic/signal-util.h | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/src/basic/signal-util.h b/src/basic/signal-util.h index 5e6eb50b07..dfd6eb564d 100644 --- a/src/basic/signal-util.h +++ b/src/basic/signal-util.h @@ -1,5 +1,3 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - #pragma once /*** @@ -39,3 +37,20 @@ const char *signal_to_string(int i) _const_; int signal_from_string(const char *s) _pure_; int signal_from_string_try_harder(const char *s); + +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; +} |