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Comparing libev/ev_port.c (file contents):
Revision 1.24 by root, Mon Jan 10 13:58:05 2011 UTC vs.
Revision 1.29 by root, Thu Feb 18 04:48:05 2016 UTC

1/* 1/*
2 * libev solaris event port backend 2 * libev solaris event port backend
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 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- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 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- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
53#include <poll.h> 53#include <poll.h>
54#include <port.h> 54#include <port.h>
55#include <string.h> 55#include <string.h>
56#include <errno.h> 56#include <errno.h>
57 57
58void inline_speed 58inline_speed
59void
59port_associate_and_check (EV_P_ int fd, int ev) 60port_associate_and_check (EV_P_ int fd, int ev)
60{ 61{
61 if (0 > 62 if (0 >
62 port_associate ( 63 port_associate (
63 backend_fd, PORT_SOURCE_FD, fd, 64 backend_fd, PORT_SOURCE_FD, fd,
… …
134 port_eventmax = array_nextsize (sizeof (port_event_t), port_eventmax, port_eventmax + 1); 135 port_eventmax = array_nextsize (sizeof (port_event_t), port_eventmax, port_eventmax + 1);
135 port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax); 136 port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax);
136 } 137 }
137} 138}
138 139
139int inline_size 140inline_size
141int
140port_init (EV_P_ int flags) 142port_init (EV_P_ int flags)
141{ 143{
142 /* Initialize the kernel queue */ 144 /* Initialize the kernel queue */
143 if ((backend_fd = port_create ()) < 0) 145 if ((backend_fd = port_create ()) < 0)
144 return 0; 146 return 0;
145 147
146 assert (("libev: PORT_SOURCE_FD must not be zero", PORT_SOURCE_FD)); 148 assert (("libev: PORT_SOURCE_FD must not be zero", PORT_SOURCE_FD));
147 149
148 fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */ 150 fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */
149 151
152 /* if my reading of the opensolaris kernel sources are correct, then
153 * opensolaris does something very stupid: it checks if the time has already
154 * elapsed and doesn't round up if that is the case,m otherwise it DOES round
155 * up. Since we can't know what the case is, we need to guess by using a
156 * "large enough" timeout. Normally, 1e-9 would be correct.
157 */
150 backend_fudge = 1e-3; /* needed to compensate for port_getn returning early */ 158 backend_mintime = 1e-3; /* needed to compensate for port_getn returning early */
151 backend_modify = port_modify; 159 backend_modify = port_modify;
152 backend_poll = port_poll; 160 backend_poll = port_poll;
153 161
154 port_eventmax = 64; /* initial number of events receivable per poll */ 162 port_eventmax = 64; /* initial number of events receivable per poll */
155 port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax); 163 port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax);
156 164
157 return EVBACKEND_PORT; 165 return EVBACKEND_PORT;
158} 166}
159 167
160void inline_size 168inline_size
169void
161port_destroy (EV_P) 170port_destroy (EV_P)
162{ 171{
163 ev_free (port_events); 172 ev_free (port_events);
164} 173}
165 174
166void inline_size 175inline_size
176void
167port_fork (EV_P) 177port_fork (EV_P)
168{ 178{
169 close (backend_fd); 179 close (backend_fd);
170 180
171 while ((backend_fd = port_create ()) < 0) 181 while ((backend_fd = port_create ()) < 0)

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