From 7835db5ec308d7471ebb95ccef7f74f196deee79 Mon Sep 17 00:00:00 2001
From: Martine Lenders <m.lenders@fu-berlin.de>
Date: Thu, 15 Nov 2018 13:53:27 +0100
Subject: [PATCH] core: provide function to check msg queue initialization
This makes it easier to refactor that part of the `thread_t` structure
later on.
---
core/include/thread.h | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/core/include/thread.h b/core/include/thread.h
index 3a13e379c8..02aa5405dc 100644
--- a/core/include/thread.h
+++ b/core/include/thread.h
@@ -527,6 +527,26 @@ void thread_stack_print(void);
*/
void thread_print_stack(void);
+/**
+ * @brief Checks if a thread has an initialized message queue
+ *
+ * @see @ref msg_init_queue()
+ *
+ * @param[in] thread The thread to check for
+ *
+ * @return `== 0`, if @p thread has no initialized message queue
+ * @return `!= 0`, if @p thread has its message queue initialized
+ */
+static inline int thread_has_msg_queue(const volatile struct _thread *thread)
+{
+#if defined(MODULE_CORE_MSG) || defined(DOXYGEN)
+ return (thread->msg_array != NULL);
+#else
+ (void)thread;
+ return 0;
+#endif
+}
+
#ifdef __cplusplus
}
#endif
--
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