Lines Matching refs:sb
69 static struct mbuf *sbcut_internal(struct sockbuf *sb, int len);
70 static void sbflush_internal(struct sockbuf *sb);
93 sbready(struct sockbuf *sb, struct mbuf *m, int count)
97 SOCKBUF_LOCK_ASSERT(sb);
98 KASSERT(sb->sb_fnrdy != NULL, ("%s: sb %p NULL fnrdy", __func__, sb));
100 blocker = (sb->sb_fnrdy == m) ? M_BLOCKED : 0;
107 sb->sb_acc += m->m_len;
118 sb->sb_acc += m->m_len;
121 sb->sb_fnrdy = m;
130 sballoc(struct sockbuf *sb, struct mbuf *m)
133 SOCKBUF_LOCK_ASSERT(sb);
135 sb->sb_ccc += m->m_len;
137 if (sb->sb_fnrdy == NULL) {
139 sb->sb_fnrdy = m;
141 sb->sb_acc += m->m_len;
146 sb->sb_ctl += m->m_len;
148 sb->sb_mbcnt += MSIZE;
149 sb->sb_mcnt += 1;
152 sb->sb_mbcnt += m->m_ext.ext_size;
153 sb->sb_ccnt += 1;
161 sbfree(struct sockbuf *sb, struct mbuf *m)
165 SOCKBUF_LOCK_ASSERT(sb);
168 sb->sb_ccc -= m->m_len;
171 sb->sb_acc -= m->m_len;
173 if (m == sb->sb_fnrdy) {
182 sb->sb_acc += n->m_len;
185 sb->sb_fnrdy = n;
189 sb->sb_ctl -= m->m_len;
191 sb->sb_mbcnt -= MSIZE;
192 sb->sb_mcnt -= 1;
194 sb->sb_mbcnt -= m->m_ext.ext_size;
195 sb->sb_ccnt -= 1;
198 if (sb->sb_sndptr == m) {
199 sb->sb_sndptr = NULL;
200 sb->sb_sndptroff = 0;
202 if (sb->sb_sndptroff != 0)
203 sb->sb_sndptroff -= m->m_len;
259 sbwait(struct sockbuf *sb)
262 SOCKBUF_LOCK_ASSERT(sb);
264 sb->sb_flags |= SB_WAIT;
265 return (msleep_sbt(&sb->sb_acc, &sb->sb_mtx,
266 (sb->sb_flags & SB_NOINTR) ? PSOCK : PSOCK | PCATCH, "sbwait",
267 sb->sb_timeo, 0, 0));
271 sblock(struct sockbuf *sb, int flags)
278 if ((sb->sb_flags & SB_NOINTR) ||
280 sx_xlock(&sb->sb_sx);
283 return (sx_xlock_sig(&sb->sb_sx));
285 if (sx_try_xlock(&sb->sb_sx) == 0)
292 sbunlock(struct sockbuf *sb)
295 sx_xunlock(&sb->sb_sx);
311 sowakeup(struct socket *so, struct sockbuf *sb)
315 SOCKBUF_LOCK_ASSERT(sb);
317 selwakeuppri(&sb->sb_sel, PSOCK);
318 if (!SEL_WAITING(&sb->sb_sel))
319 sb->sb_flags &= ~SB_SEL;
320 if (sb->sb_flags & SB_WAIT) {
321 sb->sb_flags &= ~SB_WAIT;
322 wakeup(&sb->sb_acc);
324 KNOTE_LOCKED(&sb->sb_sel.si_note, 0);
325 if (sb->sb_upcall != NULL) {
326 ret = sb->sb_upcall(so, sb->sb_upcallarg, M_NOWAIT);
328 KASSERT(sb == &so->so_rcv,
334 if (sb->sb_flags & SB_AIO)
335 sowakeup_aio(so, sb);
336 SOCKBUF_UNLOCK(sb);
341 mtx_assert(SOCKBUF_MTX(sb), MA_NOTOWNED);
424 sbreserve_locked(struct sockbuf *sb, u_long cc, struct socket *so,
429 SOCKBUF_LOCK_ASSERT(sb);
444 if (!chgsbsize(so->so_cred->cr_uidinfo, &sb->sb_hiwat, cc,
447 sb->sb_mbmax = min(cc * sb_efficiency, sb_max);
448 if (sb->sb_lowat > sb->sb_hiwat)
449 sb->sb_lowat = sb->sb_hiwat;
454 sbreserve(struct sockbuf *sb, u_long cc, struct socket *so,
459 SOCKBUF_LOCK(sb);
460 error = sbreserve_locked(sb, cc, so, td);
461 SOCKBUF_UNLOCK(sb);
469 sbrelease_internal(struct sockbuf *sb, struct socket *so)
472 sbflush_internal(sb);
473 (void)chgsbsize(so->so_cred->cr_uidinfo, &sb->sb_hiwat, 0,
475 sb->sb_mbmax = 0;
479 sbrelease_locked(struct sockbuf *sb, struct socket *so)
482 SOCKBUF_LOCK_ASSERT(sb);
484 sbrelease_internal(sb, so);
488 sbrelease(struct sockbuf *sb, struct socket *so)
491 SOCKBUF_LOCK(sb);
492 sbrelease_locked(sb, so);
493 SOCKBUF_UNLOCK(sb);
497 sbdestroy(struct sockbuf *sb, struct socket *so)
500 sbrelease_internal(sb, so);
527 sblastrecordchk(struct sockbuf *sb, const char *file, int line)
529 struct mbuf *m = sb->sb_mb;
531 SOCKBUF_LOCK_ASSERT(sb);
536 if (m != sb->sb_lastrecord) {
538 __func__, sb->sb_mb, sb->sb_lastrecord, m);
540 for (m = sb->sb_mb; m != NULL; m = m->m_nextpkt)
547 sblastmbufchk(struct sockbuf *sb, const char *file, int line)
549 struct mbuf *m = sb->sb_mb;
552 SOCKBUF_LOCK_ASSERT(sb);
560 if (m != sb->sb_mbtail) {
562 __func__, sb->sb_mb, sb->sb_mbtail, m);
564 for (m = sb->sb_mb; m != NULL; m = m->m_nextpkt) {
575 #define SBLINKRECORD(sb, m0) do { \
576 SOCKBUF_LOCK_ASSERT(sb); \
577 if ((sb)->sb_lastrecord != NULL) \
578 (sb)->sb_lastrecord->m_nextpkt = (m0); \
580 (sb)->sb_mb = (m0); \
581 (sb)->sb_lastrecord = (m0); \
585 * Append mbuf chain m to the last record in the socket buffer sb. The
586 * additional space associated the mbuf chain is recorded in sb. Empty mbufs
590 sbappend_locked(struct sockbuf *sb, struct mbuf *m, int flags)
594 SOCKBUF_LOCK_ASSERT(sb);
599 SBLASTRECORDCHK(sb);
600 n = sb->sb_mb;
606 sbappendrecord_locked(sb, m); /* XXXXXX!!!! */
616 if ((n = sb->sb_lastrecord) != NULL) {
619 sbappendrecord_locked(sb, m); /* XXXXXX!!!! */
628 sb->sb_lastrecord = m;
631 sbcompress(sb, m, n);
632 SBLASTRECORDCHK(sb);
636 * Append mbuf chain m to the last record in the socket buffer sb. The
637 * additional space associated the mbuf chain is recorded in sb. Empty mbufs
641 sbappend(struct sockbuf *sb, struct mbuf *m, int flags)
644 SOCKBUF_LOCK(sb);
645 sbappend_locked(sb, m, flags);
646 SOCKBUF_UNLOCK(sb);
655 sbappendstream_locked(struct sockbuf *sb, struct mbuf *m, int flags)
657 SOCKBUF_LOCK_ASSERT(sb);
660 KASSERT(sb->sb_mb == sb->sb_lastrecord,("sbappendstream 1"));
662 SBLASTMBUFCHK(sb);
667 sbcompress(sb, m, sb->sb_mbtail);
669 sb->sb_lastrecord = sb->sb_mb;
670 SBLASTRECORDCHK(sb);
679 sbappendstream(struct sockbuf *sb, struct mbuf *m, int flags)
682 SOCKBUF_LOCK(sb);
683 sbappendstream_locked(sb, m, flags);
684 SOCKBUF_UNLOCK(sb);
689 sbcheck(struct sockbuf *sb, const char *file, int line)
694 SOCKBUF_LOCK_ASSERT(sb);
699 for (m = sb->sb_mb; m; m = n) {
703 printf("sb %p empty mbuf %p\n", sb, m);
707 if (m != sb->sb_fnrdy) {
708 printf("sb %p: fnrdy %p != m %p\n",
709 sb, sb->sb_fnrdy, m);
716 printf("sb %p: fnrdy %p, m %p is avail\n",
717 sb, sb->sb_fnrdy, m);
728 if (acc != sb->sb_acc || ccc != sb->sb_ccc || mbcnt != sb->sb_mbcnt) {
730 acc, sb->sb_acc, ccc, sb->sb_ccc, mbcnt, sb->sb_mbcnt);
743 sbappendrecord_locked(struct sockbuf *sb, struct mbuf *m0)
747 SOCKBUF_LOCK_ASSERT(sb);
756 sballoc(sb, m0);
757 SBLASTRECORDCHK(sb);
758 SBLINKRECORD(sb, m0);
759 sb->sb_mbtail = m0;
767 sbcompress(sb, m, m0);
774 sbappendrecord(struct sockbuf *sb, struct mbuf *m0)
777 SOCKBUF_LOCK(sb);
778 sbappendrecord_locked(sb, m0);
779 SOCKBUF_UNLOCK(sb);
784 sbappendaddr_locked_internal(struct sockbuf *sb, const struct sockaddr *asa,
817 sballoc(sb, n);
818 sballoc(sb, n);
820 SBLINKRECORD(sb, m);
822 sb->sb_mbtail = nlast;
823 SBLASTMBUFCHK(sb);
825 SBLASTRECORDCHK(sb);
836 sbappendaddr_locked(struct sockbuf *sb, const struct sockaddr *asa,
842 SOCKBUF_LOCK_ASSERT(sb);
850 if (space > sbspace(sb))
852 return (sbappendaddr_locked_internal(sb, asa, m0, control, ctrl_last));
862 sbappendaddr_nospacecheck_locked(struct sockbuf *sb, const struct sockaddr *asa,
867 SOCKBUF_LOCK_ASSERT(sb);
870 return (sbappendaddr_locked_internal(sb, asa, m0, control, ctrl_last));
880 sbappendaddr(struct sockbuf *sb, const struct sockaddr *asa,
885 SOCKBUF_LOCK(sb);
886 retval = sbappendaddr_locked(sb, asa, m0, control);
887 SOCKBUF_UNLOCK(sb);
892 sbappendcontrol_locked(struct sockbuf *sb, struct mbuf *m0,
900 SBLASTRECORDCHK(sb);
903 sballoc(sb, m);
904 sballoc(sb, m);
906 SBLINKRECORD(sb, control);
908 sb->sb_mbtail = mlast;
909 SBLASTMBUFCHK(sb);
911 SBLASTRECORDCHK(sb);
915 sbappendcontrol(struct sockbuf *sb, struct mbuf *m0, struct mbuf *control)
918 SOCKBUF_LOCK(sb);
919 sbappendcontrol_locked(sb, m0, control);
920 SOCKBUF_UNLOCK(sb);
924 * Append the data in mbuf chain (m) into the socket buffer sb following mbuf
944 sbcompress(struct sockbuf *sb, struct mbuf *m, struct mbuf *n)
949 SOCKBUF_LOCK_ASSERT(sb);
957 if (sb->sb_lastrecord == m)
958 sb->sb_lastrecord = m->m_next;
964 ((sb->sb_flags & SB_NOCOALESCE) == 0) &&
973 sb->sb_ccc += m->m_len;
974 if (sb->sb_fnrdy == NULL)
975 sb->sb_acc += m->m_len;
978 sb->sb_ctl += m->m_len;
985 sb->sb_mb = m;
986 sb->sb_mbtail = m;
987 sballoc(sb, m);
997 SBLASTMBUFCHK(sb);
1004 sbflush_internal(struct sockbuf *sb)
1007 while (sb->sb_mbcnt) {
1009 * Don't call sbcut(sb, 0) if the leading mbuf is non-empty:
1012 if (sb->sb_ccc == 0 && (sb->sb_mb == NULL || sb->sb_mb->m_len))
1014 m_freem(sbcut_internal(sb, (int)sb->sb_ccc));
1016 KASSERT(sb->sb_ccc == 0 && sb->sb_mb == 0 && sb->sb_mbcnt == 0,
1018 sb->sb_ccc, (void *)sb->sb_mb, sb->sb_mbcnt));
1022 sbflush_locked(struct sockbuf *sb)
1025 SOCKBUF_LOCK_ASSERT(sb);
1026 sbflush_internal(sb);
1030 sbflush(struct sockbuf *sb)
1033 SOCKBUF_LOCK(sb);
1034 sbflush_locked(sb);
1035 SOCKBUF_UNLOCK(sb);
1042 sbcut_internal(struct sockbuf *sb, int len)
1046 next = (m = sb->sb_mb) ? m->m_nextpkt : 0;
1060 sb->sb_ccc -= len;
1061 sb->sb_acc -= len;
1062 if (sb->sb_sndptroff != 0)
1063 sb->sb_sndptroff -= len;
1065 sb->sb_ctl -= len;
1069 sbfree(sb, m);
1094 sbfree(sb, m);
1101 sb->sb_mb = m;
1104 sb->sb_mb = next;
1109 m = sb->sb_mb;
1111 sb->sb_mbtail = NULL;
1112 sb->sb_lastrecord = NULL;
1114 sb->sb_lastrecord = m;
1124 sbdrop_locked(struct sockbuf *sb, int len)
1127 SOCKBUF_LOCK_ASSERT(sb);
1128 m_freem(sbcut_internal(sb, len));
1136 sbcut_locked(struct sockbuf *sb, int len)
1139 SOCKBUF_LOCK_ASSERT(sb);
1140 return (sbcut_internal(sb, len));
1144 sbdrop(struct sockbuf *sb, int len)
1148 SOCKBUF_LOCK(sb);
1149 mfree = sbcut_internal(sb, len);
1150 SOCKBUF_UNLOCK(sb);
1160 sbsndptr(struct sockbuf *sb, u_int off, u_int len, u_int *moff)
1164 KASSERT(sb->sb_mb != NULL, ("%s: sb_mb is NULL", __func__));
1165 KASSERT(off + len <= sb->sb_acc, ("%s: beyond sb", __func__));
1166 KASSERT(sb->sb_sndptroff <= sb->sb_acc, ("%s: sndptroff broken", __func__));
1172 if (sb->sb_sndptroff > off) {
1174 return (sb->sb_mb);
1178 *moff = off - sb->sb_sndptroff;
1179 m = ret = sb->sb_sndptr ? sb->sb_sndptr : sb->sb_mb;
1182 sb->sb_sndptroff += m->m_len;
1185 ("mbuf %p in sockbuf %p chain has no valid data", ret, sb));
1189 for (off = off - sb->sb_sndptroff + len - 1;
1192 sb->sb_sndptroff += m->m_len;
1196 panic("%s: sockbuf %p and mbuf %p clashing", __func__, sb, ret);
1197 sb->sb_sndptr = m;
1207 sbsndmbuf(struct sockbuf *sb, u_int off, u_int *moff)
1211 KASSERT(sb->sb_mb != NULL, ("%s: sb_mb is NULL", __func__));
1217 if (sb->sb_sndptr == NULL || sb->sb_sndptroff > off) {
1218 m = sb->sb_mb;
1220 m = sb->sb_sndptr;
1221 off -= sb->sb_sndptroff;
1238 sbdroprecord_locked(struct sockbuf *sb)
1242 SOCKBUF_LOCK_ASSERT(sb);
1244 m = sb->sb_mb;
1246 sb->sb_mb = m->m_nextpkt;
1248 sbfree(sb, m);
1252 SB_EMPTY_FIXUP(sb);
1260 sbdroprecord(struct sockbuf *sb)
1263 SOCKBUF_LOCK(sb);
1264 sbdroprecord_locked(sb);
1265 SOCKBUF_UNLOCK(sb);
1312 sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb)
1315 xsb->sb_cc = sb->sb_ccc;
1316 xsb->sb_hiwat = sb->sb_hiwat;
1317 xsb->sb_mbcnt = sb->sb_mbcnt;
1318 xsb->sb_mcnt = sb->sb_mcnt;
1319 xsb->sb_ccnt = sb->sb_ccnt;
1320 xsb->sb_mbmax = sb->sb_mbmax;
1321 xsb->sb_lowat = sb->sb_lowat;
1322 xsb->sb_flags = sb->sb_flags;
1323 xsb->sb_timeo = sb->sb_timeo;