mg_iobuf_append -> mg_iobuf_add

src/iobuf.h

@@ -3,12 +3,13 @@
 #include <stddef.h>
 
 struct mg_iobuf {
-  unsigned char *buf;
-  size_t size, len;
+  unsigned char *buf;  // Data
+  size_t size;         // Total size available
+  size_t len;          // Current number of bytes
 };
 
 int mg_iobuf_init(struct mg_iobuf *, size_t);
 int mg_iobuf_resize(struct mg_iobuf *, size_t);
 void mg_iobuf_free(struct mg_iobuf *);
-size_t mg_iobuf_append(struct mg_iobuf *, const void *, size_t, size_t);
+size_t mg_iobuf_add(struct mg_iobuf *, size_t, const void *, size_t, size_t);
 size_t mg_iobuf_del(struct mg_iobuf *, size_t ofs, size_t len);