version 1.54.2.12, 2002/06/24 22:11:03 |
version 1.76, 2003/01/31 05:00:24 |
Line 79 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 79 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include <sys/param.h> |
#include <sys/param.h> |
#include <sys/systm.h> |
#include <sys/systm.h> |
#include <sys/lwp.h> |
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#include <sys/proc.h> |
#include <sys/proc.h> |
#include <sys/file.h> |
#include <sys/file.h> |
#include <sys/malloc.h> |
#include <sys/malloc.h> |
Line 92 __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 151 int sokvawaiters; |
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Line 151 int sokvawaiters; |
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#define SOCK_LOAN_CHUNK 65536 |
#define SOCK_LOAN_CHUNK 65536 |
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static void |
static void |
sodoloanfree(caddr_t buf, u_int size) |
sodoloanfree(caddr_t buf, size_t size) |
{ |
{ |
struct vm_page **pgs; |
struct vm_page **pgs; |
vaddr_t va, sva, eva; |
vaddr_t va, sva, eva; |
Line 221 sodopendfree(struct socket *so) |
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Line 221 sodopendfree(struct socket *so) |
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} |
} |
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static void |
static void |
soloanfree(struct mbuf *m, caddr_t buf, u_int size, void *arg) |
soloanfree(struct mbuf *m, caddr_t buf, size_t size, void *arg) |
{ |
{ |
struct socket *so = arg; |
struct socket *so = arg; |
int s; |
int s; |
Line 324 socreate(int dom, struct socket **aso, i |
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Line 324 socreate(int dom, struct socket **aso, i |
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struct socket *so; |
struct socket *so; |
int error, s; |
int error, s; |
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p = curproc; /* XXX */ |
p = curproc; /* XXX */ |
if (proto) |
if (proto) |
prp = pffindproto(dom, proto, type); |
prp = pffindproto(dom, proto, type); |
else |
else |
Line 895 soreceive(struct socket *so, struct mbuf |
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Line 895 soreceive(struct socket *so, struct mbuf |
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error = EWOULDBLOCK; |
error = EWOULDBLOCK; |
goto release; |
goto release; |
} |
} |
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SBLASTRECORDCHK(&so->so_rcv, "soreceive sbwait 1"); |
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SBLASTMBUFCHK(&so->so_rcv, "soreceive sbwait 1"); |
sbunlock(&so->so_rcv); |
sbunlock(&so->so_rcv); |
error = sbwait(&so->so_rcv); |
error = sbwait(&so->so_rcv); |
splx(s); |
splx(s); |
Line 903 soreceive(struct socket *so, struct mbuf |
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Line 905 soreceive(struct socket *so, struct mbuf |
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goto restart; |
goto restart; |
} |
} |
dontblock: |
dontblock: |
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/* |
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* On entry here, m points to the first record of the socket buffer. |
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* While we process the initial mbufs containing address and control |
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* info, we save a copy of m->m_nextpkt into nextrecord. |
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*/ |
#ifdef notyet /* XXXX */ |
#ifdef notyet /* XXXX */ |
if (uio->uio_procp) |
if (uio->uio_procp) |
uio->uio_procp->p_stats->p_ru.ru_msgrcv++; |
uio->uio_procp->p_stats->p_ru.ru_msgrcv++; |
#endif |
#endif |
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KASSERT(m == so->so_rcv.sb_mb); |
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SBLASTRECORDCHK(&so->so_rcv, "soreceive 1"); |
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SBLASTMBUFCHK(&so->so_rcv, "soreceive 1"); |
nextrecord = m->m_nextpkt; |
nextrecord = m->m_nextpkt; |
if (pr->pr_flags & PR_ADDR) { |
if (pr->pr_flags & PR_ADDR) { |
#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
Line 959 soreceive(struct socket *so, struct mbuf |
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Line 969 soreceive(struct socket *so, struct mbuf |
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controlp = &(*controlp)->m_next; |
controlp = &(*controlp)->m_next; |
} |
} |
} |
} |
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/* |
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* If m is non-NULL, we have some data to read. From now on, |
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* make sure to keep sb_lastrecord consistent when working on |
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* the last packet on the chain (nextrecord == NULL) and we |
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* change m->m_nextpkt. |
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*/ |
if (m) { |
if (m) { |
if ((flags & MSG_PEEK) == 0) |
if ((flags & MSG_PEEK) == 0) { |
m->m_nextpkt = nextrecord; |
m->m_nextpkt = nextrecord; |
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/* |
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* If nextrecord == NULL (this is a single chain), |
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* then sb_lastrecord may not be valid here if m |
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* was changed earlier. |
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*/ |
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if (nextrecord == NULL) { |
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KASSERT(so->so_rcv.sb_mb == m); |
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so->so_rcv.sb_lastrecord = m; |
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} |
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} |
type = m->m_type; |
type = m->m_type; |
if (type == MT_OOBDATA) |
if (type == MT_OOBDATA) |
flags |= MSG_OOB; |
flags |= MSG_OOB; |
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} else { |
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if ((flags & MSG_PEEK) == 0) { |
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KASSERT(so->so_rcv.sb_mb == m); |
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so->so_rcv.sb_mb = nextrecord; |
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SB_EMPTY_FIXUP(&so->so_rcv); |
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} |
} |
} |
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SBLASTRECORDCHK(&so->so_rcv, "soreceive 2"); |
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SBLASTMBUFCHK(&so->so_rcv, "soreceive 2"); |
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moff = 0; |
moff = 0; |
offset = 0; |
offset = 0; |
while (m && uio->uio_resid > 0 && error == 0) { |
while (m && uio->uio_resid > 0 && error == 0) { |
Line 993 soreceive(struct socket *so, struct mbuf |
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Line 1029 soreceive(struct socket *so, struct mbuf |
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* block interrupts again. |
* block interrupts again. |
*/ |
*/ |
if (mp == 0) { |
if (mp == 0) { |
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SBLASTRECORDCHK(&so->so_rcv, "soreceive uiomove"); |
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SBLASTMBUFCHK(&so->so_rcv, "soreceive uiomove"); |
splx(s); |
splx(s); |
error = uiomove(mtod(m, caddr_t) + moff, (int)len, uio); |
error = uiomove(mtod(m, caddr_t) + moff, (int)len, uio); |
s = splsoftnet(); |
s = splsoftnet(); |
Line 1034 soreceive(struct socket *so, struct mbuf |
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Line 1072 soreceive(struct socket *so, struct mbuf |
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MFREE(m, so->so_rcv.sb_mb); |
MFREE(m, so->so_rcv.sb_mb); |
m = so->so_rcv.sb_mb; |
m = so->so_rcv.sb_mb; |
} |
} |
if (m) |
/* |
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* If m != NULL, we also know that |
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* so->so_rcv.sb_mb != NULL. |
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*/ |
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KASSERT(so->so_rcv.sb_mb == m); |
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if (m) { |
m->m_nextpkt = nextrecord; |
m->m_nextpkt = nextrecord; |
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if (nextrecord == NULL) |
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so->so_rcv.sb_lastrecord = m; |
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} else { |
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so->so_rcv.sb_mb = nextrecord; |
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SB_EMPTY_FIXUP(&so->so_rcv); |
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} |
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SBLASTRECORDCHK(&so->so_rcv, "soreceive 3"); |
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SBLASTMBUFCHK(&so->so_rcv, "soreceive 3"); |
} |
} |
} else { |
} else { |
if (flags & MSG_PEEK) |
if (flags & MSG_PEEK) |
Line 1091 soreceive(struct socket *so, struct mbuf |
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Line 1142 soreceive(struct socket *so, struct mbuf |
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(struct mbuf *)(long)flags, |
(struct mbuf *)(long)flags, |
(struct mbuf *)0, |
(struct mbuf *)0, |
(struct proc *)0); |
(struct proc *)0); |
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SBLASTRECORDCHK(&so->so_rcv, "soreceive sbwait 2"); |
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SBLASTMBUFCHK(&so->so_rcv, "soreceive sbwait 2"); |
error = sbwait(&so->so_rcv); |
error = sbwait(&so->so_rcv); |
if (error) { |
if (error) { |
sbunlock(&so->so_rcv); |
sbunlock(&so->so_rcv); |
Line 1108 soreceive(struct socket *so, struct mbuf |
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Line 1161 soreceive(struct socket *so, struct mbuf |
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(void) sbdroprecord(&so->so_rcv); |
(void) sbdroprecord(&so->so_rcv); |
} |
} |
if ((flags & MSG_PEEK) == 0) { |
if ((flags & MSG_PEEK) == 0) { |
if (m == 0) |
if (m == 0) { |
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/* |
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* First part is an inline SB_EMPTY_FIXUP(). Second |
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* part makes sure sb_lastrecord is up-to-date if |
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* there is still data in the socket buffer. |
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*/ |
so->so_rcv.sb_mb = nextrecord; |
so->so_rcv.sb_mb = nextrecord; |
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if (so->so_rcv.sb_mb == NULL) { |
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so->so_rcv.sb_mbtail = NULL; |
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so->so_rcv.sb_lastrecord = NULL; |
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} else if (nextrecord->m_nextpkt == NULL) |
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so->so_rcv.sb_lastrecord = nextrecord; |
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} |
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SBLASTRECORDCHK(&so->so_rcv, "soreceive 4"); |
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SBLASTMBUFCHK(&so->so_rcv, "soreceive 4"); |
if (pr->pr_flags & PR_WANTRCVD && so->so_pcb) |
if (pr->pr_flags & PR_WANTRCVD && so->so_pcb) |
(*pr->pr_usrreq)(so, PRU_RCVD, (struct mbuf *)0, |
(*pr->pr_usrreq)(so, PRU_RCVD, (struct mbuf *)0, |
(struct mbuf *)(long)flags, (struct mbuf *)0, |
(struct mbuf *)(long)flags, (struct mbuf *)0, |
Line 1275 sosetopt(struct socket *so, int level, i |
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Line 1341 sosetopt(struct socket *so, int level, i |
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goto bad; |
goto bad; |
} |
} |
tv = mtod(m, struct timeval *); |
tv = mtod(m, struct timeval *); |
if (tv->tv_sec * hz + tv->tv_usec / tick > SHRT_MAX) { |
if (tv->tv_sec > (SHRT_MAX - tv->tv_usec / tick) / hz) { |
error = EDOM; |
error = EDOM; |
goto bad; |
goto bad; |
} |
} |
val = tv->tv_sec * hz + tv->tv_usec / tick; |
val = tv->tv_sec * hz + tv->tv_usec / tick; |
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if (val == 0 && tv->tv_usec != 0) |
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val = 1; |
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switch (optname) { |
switch (optname) { |
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Line 1403 sohasoutofband(struct socket *so) |
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Line 1471 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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