From 34d83987c18df3e06db1528423841376072bb627 Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Wed, 14 Feb 2024 11:19:41 -0500
Subject: kernel: Add __TRY_CALL() macro

This commit adds a macro to make testing if weak functions
are implemented, then running them, less messy. This allows you
to do so in one line.

Signed-off-by: Ian Moffett <ian@osmora.org>
---
 sys/include/sys/cdefs.h | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'sys/include')

diff --git a/sys/include/sys/cdefs.h b/sys/include/sys/cdefs.h
index 59c81d4..da78510 100644
--- a/sys/include/sys/cdefs.h
+++ b/sys/include/sys/cdefs.h
@@ -154,6 +154,13 @@
 #define __MODULE_NAME(name) \
     __used static const char *__THIS_MODULE = name
 
+/*
+ * Attempts to call a __weak function. Does nothing
+ * if routine not implemented.
+ */
+#define __TRY_CALL(routine, ...) \
+    if (routine != NULL) routine(__VA_ARGS__)
+
 #else
 
 /*
-- 
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