[GitHub] [mynewt-nimble] KKopyscinski commented on a change in pull request #872: nimble/porting: sync with core

[GitBox <gi...@apache.org>]

KKopyscinski commented on a change in pull request #872:
URL: https://github.com/apache/mynewt-nimble/pull/872#discussion_r505477367



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File path: porting/nimble/include/os/os_mbuf.h
##########
@@ -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:
       I copied whole contents of corresponding files, except of includes and adjusted some defined values to match.
   
   This method is here:
   https://github.com/apache/mynewt-core/blob/c5d9068cd472f32f0afd89594038a188d9ddf50d/kernel/os/include/os/os_mbuf.h#L429




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