src/sys/kern/uipc_socket.c - diff

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Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.

version 1.7, 1993/10/26 22:36:25

version 1.8, 1993/11/05 23:00:27

Line 409 restart:

if ((m->m_flags & M_EXT) == 0)

goto nopages;

mlen = MCLBYTES;

#ifdef MAPPED_MBUFS

len = min(min(mlen, resid), space);

len = min(MCLBYTES, resid);

#else

if (atomic && top == 0) {

len = min(MCLBYTES - max_hdr, resid);

m->m_data += max_hdr;

} else

len = min(MCLBYTES, resid);

#endif

len = min(len, space);

space -= len;

} else {

nopages:

len = min(min(mlen, resid), space);

space -= len;

* For datagram protocols, leave room

* for protocol headers in first mbuf.

Line 431 nopages:

Line 420 nopages:

if (atomic && top == 0 && len < mlen)

MH_ALIGN(m, len);

}

space -= len;

error = uiomove(mtod(m, caddr_t), (int)len, uio);

resid = uio->uio_resid;

m->m_len = len;