Add SB_NOCOALESCE flag to disable socket buffer update in place
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=174711
@ -761,6 +761,7 @@ sbcompress(struct sockbuf *sb, struct mbuf *m, struct mbuf *n)
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}
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if (n && (n->m_flags & M_EOR) == 0 &&
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M_WRITABLE(n) &&
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((sb->sb_flags & SB_NOCOALESCE) == 0) &&
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m->m_len <= MCLBYTES / 4 && /* XXX: Don't copy too much */
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m->m_len <= M_TRAILINGSPACE(n) &&
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n->m_type == m->m_type) {
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@ -130,6 +130,7 @@ struct socket {
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#define SB_NOINTR 0x40 /* operations not interruptible */
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#define SB_AIO 0x80 /* AIO operations queued */
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#define SB_KNOTE 0x100 /* kernel note attached */
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#define SB_NOCOALESCE 0x200 /* don't coalesce new data into existing mbufs */
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#define SB_AUTOSIZE 0x800 /* automatically size socket buffer */
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void (*so_upcall)(struct socket *, void *, int);
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