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Sergey Lyubka 2021-08-28 08:48:47 +01:00
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### mg\_iobuf\_add()
```c
size_t mg_iobuf_add(struct mg_iobuf *io, size_t offset, const void *buf, size_t len, size_t granularity);
size_t mg_iobuf_add(struct mg_iobuf *io, size_t offset, const void *buf, size_t len, size_t align);
```
Insert data buffer `buf`, `len` at offset `offset`. The iobuf gets
is expanded if required. The resulting `io->size` is always
aligned to the `granularity` byte boundary. Example:
aligned to the `align` byte boundary - therefore, to avoid memory fragmentation
and frequent reallocations, set `align` to a higher value. Example:
```c
struct mg_iobuf io;