version 1.69, 2002/07/03 19:06:48 |
version 1.73, 2002/11/26 18:44:35 |
Line 91 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 91 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include <sys/signalvar.h> |
#include <sys/signalvar.h> |
#include <sys/resourcevar.h> |
#include <sys/resourcevar.h> |
#include <sys/pool.h> |
#include <sys/pool.h> |
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#include <sys/event.h> |
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#include <uvm/uvm.h> |
#include <uvm/uvm.h> |
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#endif /* SOSEND_COUNTERS */ |
#endif /* SOSEND_COUNTERS */ |
} |
} |
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#ifdef SOSEND_LOAN |
#ifdef SOSEND_NO_LOAN |
int use_sosend_loan = 1; |
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#else |
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int use_sosend_loan = 0; |
int use_sosend_loan = 0; |
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#else |
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int use_sosend_loan = 1; |
#endif |
#endif |
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struct mbuf *so_pendfree; |
struct mbuf *so_pendfree; |
Line 995 soreceive(struct socket *so, struct mbuf |
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Line 996 soreceive(struct socket *so, struct mbuf |
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if ((flags & MSG_PEEK) == 0) { |
if ((flags & MSG_PEEK) == 0) { |
KASSERT(so->so_rcv.sb_mb == m); |
KASSERT(so->so_rcv.sb_mb == m); |
so->so_rcv.sb_mb = nextrecord; |
so->so_rcv.sb_mb = nextrecord; |
SB_UPDATE_TAIL(&so->so_rcv); |
SB_EMPTY_FIXUP(&so->so_rcv); |
} |
} |
} |
} |
SBLASTRECORDCHK(&so->so_rcv, "soreceive 2"); |
SBLASTRECORDCHK(&so->so_rcv, "soreceive 2"); |
Line 1082 soreceive(struct socket *so, struct mbuf |
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Line 1083 soreceive(struct socket *so, struct mbuf |
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so->so_rcv.sb_lastrecord = m; |
so->so_rcv.sb_lastrecord = m; |
} else { |
} else { |
so->so_rcv.sb_mb = nextrecord; |
so->so_rcv.sb_mb = nextrecord; |
SB_UPDATE_TAIL(&so->so_rcv); |
SB_EMPTY_FIXUP(&so->so_rcv); |
} |
} |
SBLASTRECORDCHK(&so->so_rcv, "soreceive 3"); |
SBLASTRECORDCHK(&so->so_rcv, "soreceive 3"); |
SBLASTMBUFCHK(&so->so_rcv, "soreceive 3"); |
SBLASTMBUFCHK(&so->so_rcv, "soreceive 3"); |
Line 1162 soreceive(struct socket *so, struct mbuf |
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Line 1163 soreceive(struct socket *so, struct mbuf |
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if ((flags & MSG_PEEK) == 0) { |
if ((flags & MSG_PEEK) == 0) { |
if (m == 0) { |
if (m == 0) { |
/* |
/* |
* First part is an inline SB_UPDATE_TAIL(). Second |
* First part is an inline SB_EMPTY_FIXUP(). Second |
* part makes sure sb_lastrecord is up-to-date if |
* part makes sure sb_lastrecord is up-to-date if |
* there is still data in the socket buffer. |
* there is still data in the socket buffer. |
*/ |
*/ |
Line 1468 sohasoutofband(struct socket *so) |
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Line 1469 sohasoutofband(struct socket *so) |
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psignal(p, SIGURG); |
psignal(p, SIGURG); |
selwakeup(&so->so_rcv.sb_sel); |
selwakeup(&so->so_rcv.sb_sel); |
} |
} |
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static void |
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filt_sordetach(struct knote *kn) |
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{ |
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struct socket *so; |
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so = (struct socket *)kn->kn_fp->f_data; |
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SLIST_REMOVE(&so->so_rcv.sb_sel.sel_klist, kn, knote, kn_selnext); |
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if (SLIST_EMPTY(&so->so_rcv.sb_sel.sel_klist)) |
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so->so_rcv.sb_flags &= ~SB_KNOTE; |
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} |
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/*ARGSUSED*/ |
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static int |
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filt_soread(struct knote *kn, long hint) |
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{ |
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struct socket *so; |
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so = (struct socket *)kn->kn_fp->f_data; |
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kn->kn_data = so->so_rcv.sb_cc; |
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if (so->so_state & SS_CANTRCVMORE) { |
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kn->kn_flags |= EV_EOF; |
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kn->kn_fflags = so->so_error; |
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return (1); |
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} |
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if (so->so_error) /* temporary udp error */ |
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return (1); |
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if (kn->kn_sfflags & NOTE_LOWAT) |
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return (kn->kn_data >= kn->kn_sdata); |
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return (kn->kn_data >= so->so_rcv.sb_lowat); |
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} |
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static void |
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filt_sowdetach(struct knote *kn) |
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{ |
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struct socket *so; |
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so = (struct socket *)kn->kn_fp->f_data; |
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SLIST_REMOVE(&so->so_snd.sb_sel.sel_klist, kn, knote, kn_selnext); |
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if (SLIST_EMPTY(&so->so_snd.sb_sel.sel_klist)) |
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so->so_snd.sb_flags &= ~SB_KNOTE; |
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} |
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/*ARGSUSED*/ |
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static int |
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filt_sowrite(struct knote *kn, long hint) |
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{ |
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struct socket *so; |
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so = (struct socket *)kn->kn_fp->f_data; |
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kn->kn_data = sbspace(&so->so_snd); |
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if (so->so_state & SS_CANTSENDMORE) { |
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kn->kn_flags |= EV_EOF; |
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kn->kn_fflags = so->so_error; |
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return (1); |
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} |
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if (so->so_error) /* temporary udp error */ |
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return (1); |
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if (((so->so_state & SS_ISCONNECTED) == 0) && |
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(so->so_proto->pr_flags & PR_CONNREQUIRED)) |
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return (0); |
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if (kn->kn_sfflags & NOTE_LOWAT) |
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return (kn->kn_data >= kn->kn_sdata); |
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return (kn->kn_data >= so->so_snd.sb_lowat); |
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} |
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/*ARGSUSED*/ |
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static int |
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filt_solisten(struct knote *kn, long hint) |
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{ |
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struct socket *so; |
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so = (struct socket *)kn->kn_fp->f_data; |
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/* |
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* Set kn_data to number of incoming connections, not |
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* counting partial (incomplete) connections. |
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*/ |
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kn->kn_data = so->so_qlen; |
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return (kn->kn_data > 0); |
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} |
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static const struct filterops solisten_filtops = |
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{ 1, NULL, filt_sordetach, filt_solisten }; |
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static const struct filterops soread_filtops = |
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{ 1, NULL, filt_sordetach, filt_soread }; |
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static const struct filterops sowrite_filtops = |
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{ 1, NULL, filt_sowdetach, filt_sowrite }; |
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int |
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soo_kqfilter(struct file *fp, struct knote *kn) |
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{ |
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struct socket *so; |
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struct sockbuf *sb; |
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so = (struct socket *)kn->kn_fp->f_data; |
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switch (kn->kn_filter) { |
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case EVFILT_READ: |
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if (so->so_options & SO_ACCEPTCONN) |
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kn->kn_fop = &solisten_filtops; |
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else |
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kn->kn_fop = &soread_filtops; |
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sb = &so->so_rcv; |
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break; |
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case EVFILT_WRITE: |
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kn->kn_fop = &sowrite_filtops; |
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sb = &so->so_snd; |
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break; |
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default: |
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return (1); |
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} |
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SLIST_INSERT_HEAD(&sb->sb_sel.sel_klist, kn, kn_selnext); |
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sb->sb_flags |= SB_KNOTE; |
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return (0); |
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} |
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