missing: add a bunch of mount flags

[elogind.git] / src / basic / signal-util.h

diff --git a/src/basic/signal-util.h b/src/basic/signal-util.h
index 3f22fd46e76a109e6c8e517faecd0cb8e08f0b16..ee37e2726e14e686cad101ea0b0946f6eb9567e1 100644 (file)
--- a/src/basic/signal-util.h
+++ b/src/basic/signal-util.h
@@ -40,5 +40,21 @@ int signal_from_string(const char *s) _pure_;
 
 int signal_from_string_try_harder(const char *s);
 #if 0 /// UNNEEDED by elogind
+
 void nop_signal_handler(int sig);
 #endif // 0
+
+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;
+}