signal: separate sigval from sigevent

On OpenBSD sigval is defined but sigevent is not.

Tie sigval with siginfo's SI_QUEUE.

Reported-by: Pierre-Emmanuel André

diff --git a/usual/signal.h b/usual/signal.h
index 3fcb0b2d738edc4bc36ac5da8d0d37f6842a06fa..c44c81aca85fae3bcd6db3e9ff44b85333e1d9e0 100644 (file)
--- a/usual/signal.h
+++ b/usual/signal.h
@@ -31,6 +31,17 @@
 
 #include <signal.h>
 
+/*
+ * Compat sigval, detect based on siginfo_t.si_code.
+ */
+
+#ifndef SI_QUEUE
+union sigval {
+       int sival_int;
+       void *sival_ptr;
+};
+#endif
+
 /*
  * Compat sigevent
  */
@@ -39,10 +50,6 @@
 #define SIGEV_NONE 0
 #define SIGEV_SIGNAL 1
 #define SIGEV_THREAD 2
-union sigval {
-       int sival_int;
-       void *sival_ptr;
-};
 struct sigevent {
        int sigev_notify;
        int sigev_signo;