KKopyscinski commented on a change in pull request #872:
URL: https://github.com/apache/mynewt-nimble/pull/872#discussion_r505477920
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File path: porting/nimble/include/os/os_mbuf.h
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@@ -413,6 +413,21 @@ struct os_mbuf *os_mbuf_off(const struct os_mbuf *om, int
off,
*/
int os_mbuf_copydata(const struct os_mbuf *m, int off, int len, void *dst);
+/**
+ * @brief Calculates the length of an mbuf chain.
+ *
+ * Calculates the length of an mbuf chain. If the mbuf contains a packet
+ * header, you should use `OS_MBUF_PKTLEN()` as a more efficient alternative to
+ * this function.
+ *
+ * @param om The mbuf to measure.
+ *
+ * @return The length, in bytes, of the provided mbuf
+ * chain.
+ */
+uint16_t os_mbuf_len(const struct os_mbuf *om);
+/**
Review comment:
so before copying I was checking diff, to see what is added and what
might cause errors
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