1 files changed, 12 insertions, 0 deletions
diff --git a/sigchain.h b/sigchain.h
new file mode 100644
index 000000000000..138b20f54b40
--- /dev/null
+++ b/sigchain.h
@@ -0,0 +1,12 @@
+#ifndef SIGCHAIN_H
+#define SIGCHAIN_H
+
+typedef void (*sigchain_fun)(int);
+
+int sigchain_push(int sig, sigchain_fun f);
+int sigchain_pop(int sig);
+
+void sigchain_push_common(sigchain_fun f);
+void sigchain_pop_common(void);
+
+#endif /* SIGCHAIN_H */