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Comparing libev/ev_port.c (file contents):
Revision 1.4 by root, Fri Nov 23 05:13:49 2007 UTC vs.
Revision 1.21 by root, Fri Oct 15 22:44:41 2010 UTC

1/* 1/*
2 * Copyright 2007 Marc Alexander Lehmann <libev@schmorp.de> 2 * libev solaris event port backend
3 * 3 *
4 * Redistribution and use in source and binary forms, with or without 4 * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>
5 * modification, are permitted provided that the following conditions 5 * All rights reserved.
6 * are met:
7 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met:
9 *
8 * 1. Redistributions of source code must retain the above copyright 10 * 1. Redistributions of source code must retain the above copyright notice,
9 * notice, this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 *
10 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
23 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
25 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
26 * OF THE POSSIBILITY OF SUCH DAMAGE.
13 * 27 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 28 * Alternatively, the contents of this file may be used under the terms of
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 29 * the GNU General Public License ("GPL") version 2 or any later version,
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 30 * in which case the provisions of the GPL are applicable instead of
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 31 * the above. If you wish to allow the use of your version of this file
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 32 * only under the terms of the GPL and not to allow others to use your
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 33 * version of this file under the BSD license, indicate your decision
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 34 * by deleting the provisions above and replace them with the notice
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 35 * and other provisions required by the GPL. If you do not delete the
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 36 * provisions above, a recipient may use your version of this file under
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 37 * either the BSD or the GPL.
24 */ 38 */
25 39
26#include <sys/types.h> 40#include <sys/types.h>
27#include <sys/time.h> 41#include <sys/time.h>
28#include <poll.h> 42#include <poll.h>
29#include <port.h> 43#include <port.h>
30#include <string.h> 44#include <string.h>
31#include <errno.h> 45#include <errno.h>
46
47void inline_speed
48port_associate_and_check (EV_P_ int fd, int ev)
49{
50 if (0 >
51 port_associate (
52 backend_fd, PORT_SOURCE_FD, fd,
53 (ev & EV_READ ? POLLIN : 0)
54 | (ev & EV_WRITE ? POLLOUT : 0),
55 0
56 )
57 )
58 {
59 if (errno == EBADFD)
60 fd_kill (EV_A_ fd);
61 else
62 ev_syserr ("(libev) port_associate");
63 }
64}
32 65
33static void 66static void
34port_modify (EV_P_ int fd, int oev, int nev) 67port_modify (EV_P_ int fd, int oev, int nev)
35{ 68{
36 /* we need to reassociate no matter what, as closes are 69 /* we need to reassociate no matter what, as closes are
37 * once more silently being discarded. 70 * once more silently being discarded.
38 */ 71 */
39 if (!nev) 72 if (!nev)
40 { 73 {
41 if (oev) 74 if (oev)
42 port_dissociate (port_fd, PORT_SOURCE_FD, fd); 75 port_dissociate (backend_fd, PORT_SOURCE_FD, fd);
43 } 76 }
44 else if (0 >
45 port_associate (
46 port_fd, PORT_SOURCE_FD, fd,
47 (nev & EV_READ ? POLLIN : 0)
48 | (nev & EV_WRITE ? POLLOUT : 0),
49 0
50 )
51 )
52 {
53 if (errno == EBADFD)
54 fd_kill (EV_A_ fd);
55 else 77 else
56 syserr ("(libev) port_associate"); 78 port_associate_and_check (EV_A_ fd, nev);
57 }
58} 79}
59 80
60static void 81static void
61port_poll (EV_P_ ev_tstamp timeout) 82port_poll (EV_P_ ev_tstamp timeout)
62{ 83{
63 int res, i; 84 int res, i;
64 struct timespec ts; 85 struct timespec ts;
65 uint_t nget = 1; 86 uint_t nget = 1;
66 87
67 ts.tv_sec = (time_t)timeout; 88 EV_RELEASE_CB;
68 ts.tv_nsec = (long)(timeout - (ev_tstamp)ts.tv_sec) * 1e9; 89 EV_TS_SET (ts, timeout);
69 res = port_getn (port_fd, port_events, port_eventmax, &nget, &ts); 90 res = port_getn (backend_fd, port_events, port_eventmax, &nget, &ts);
91 EV_ACQUIRE_CB;
70 92
71 if (res < 0) 93 if (res == -1)
72 { 94 {
73 if (errno != EINTR && errno != ETIME) 95 if (errno != EINTR && errno != ETIME)
74 syserr ("(libev) port_getn"); 96 ev_syserr ("(libev) port_getn (see http://bugs.opensolaris.org/view_bug.do?bug_id=6268715, try LIBEV_FLAGS=3 env variable)");
75 97
76 return; 98 return;
77 } 99 }
78 100
79 for (i = 0; i < nget; ++i) 101 for (i = 0; i < nget; ++i)
… …
87 fd, 109 fd,
88 (port_events [i].portev_events & (POLLOUT | POLLERR | POLLHUP) ? EV_WRITE : 0) 110 (port_events [i].portev_events & (POLLOUT | POLLERR | POLLHUP) ? EV_WRITE : 0)
89 | (port_events [i].portev_events & (POLLIN | POLLERR | POLLHUP) ? EV_READ : 0) 111 | (port_events [i].portev_events & (POLLIN | POLLERR | POLLHUP) ? EV_READ : 0)
90 ); 112 );
91 113
92 anfds [fd].events = 0; /* event received == disassociated */ 114 port_associate_and_check (EV_A_ fd, anfds [fd].events);
93 fd_change (EV_A_ fd); /* need to reify later */
94 } 115 }
95 } 116 }
96 117
97 if (expect_false (nget == port_eventmax)) 118 if (expect_false (nget == port_eventmax))
98 { 119 {
99 ev_free (port_events); 120 ev_free (port_events);
100 port_eventmax = array_roundsize (port_event_t, port_eventmax << 1); 121 port_eventmax = array_nextsize (sizeof (port_event_t), port_eventmax, port_eventmax + 1);
101 port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax); 122 port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax);
102 } 123 }
103} 124}
104 125
105static int 126int inline_size
106port_init (EV_P_ int flags) 127port_init (EV_P_ int flags)
107{ 128{
108 /* Initalize the kernel queue */ 129 /* Initialize the kernel queue */
109 if ((port_fd = port_create ()) < 0) 130 if ((backend_fd = port_create ()) < 0)
110 return 0; 131 return 0;
111 132
112 fcntl (port_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */ 133 fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */
113 134
114 backend_fudge = 1e-3; /* needed to compensate for port_getn returning early */ 135 backend_fudge = 1e-3; /* needed to compensate for port_getn returning early */
115 backend_modify = port_modify; 136 backend_modify = port_modify;
116 backend_poll = port_poll; 137 backend_poll = port_poll;
117 138
118 port_eventmax = 64; /* intiial number of events receivable per poll */ 139 port_eventmax = 64; /* initial number of events receivable per poll */
119 port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax); 140 port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax);
120 141
121 return EVBACKEND_PORT; 142 return EVBACKEND_PORT;
122} 143}
123 144
124static void 145void inline_size
125port_destroy (EV_P) 146port_destroy (EV_P)
126{ 147{
127 close (port_fd);
128
129 ev_free (port_events); 148 ev_free (port_events);
130} 149}
131 150
132static void 151void inline_size
133port_fork (EV_P) 152port_fork (EV_P)
134{ 153{
135 close (port_fd); 154 close (backend_fd);
136 155
137 while ((port_fd = port_create ()) < 0) 156 while ((backend_fd = port_create ()) < 0)
138 syserr ("(libev) port"); 157 ev_syserr ("(libev) port");
139 158
140 fcntl (port_fd, F_SETFD, FD_CLOEXEC); 159 fcntl (backend_fd, F_SETFD, FD_CLOEXEC);
141 160
142 /* re-register interest in fds */ 161 /* re-register interest in fds */
143 fd_rearm_all (EV_A); 162 fd_rearm_all (EV_A);
144} 163}
145 164

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