Esempi in C++ (Cpp) per ofpbuf_prealloc_headroom

Esempio n. 1

File: ofpbuf.c Progetto: cho4036/MyProject

/* Prefixes 'size' bytes to the head end of 'b', reallocating and copying its
 * data if necessary.  Returns a pointer to the first byte of the data's
 * location in the ofpbuf.  The new data is left uninitialized. */
void *
ofpbuf_push_uninit(struct ofpbuf *b, size_t size)
{
    ofpbuf_prealloc_headroom(b, size);
    b->data = (char*)b->data - size;
    b->size += size;
    return b->data;
}

Esempio n. 2

File: ofpbuf.c Progetto: ers1st/ovs-openstate

/* Prefixes 'size' bytes to the head end of 'b', reallocating and copying its
 * data if necessary.  Returns a pointer to the first byte of the data's
 * location in the ofpbuf.  The new data is left uninitialized. */
void *
ofpbuf_push_uninit(struct ofpbuf *b, size_t size)
{
    ofpbuf_prealloc_headroom(b, size);
    ofpbuf_set_data(b, (char*)ofpbuf_data(b) - size);
    ofpbuf_set_size(b, ofpbuf_size(b) + size);
    return ofpbuf_data(b);
}