1 | /* |
1 | /* |
2 | * libev solaris event port backend |
2 | * libev solaris event port backend |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2019 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 | |
58 | void inline_speed |
58 | inline_speed |
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|
59 | void |
59 | port_associate_and_check (EV_P_ int fd, int ev) |
60 | port_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, |
… | |
… | |
66 | 0 |
67 | 0 |
67 | ) |
68 | ) |
68 | ) |
69 | ) |
69 | { |
70 | { |
70 | if (errno == EBADFD) |
71 | if (errno == EBADFD) |
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|
72 | { |
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73 | assert (("libev: port_associate found invalid fd", errno != EBADFD)); |
71 | fd_kill (EV_A_ fd); |
74 | fd_kill (EV_A_ fd); |
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|
75 | } |
72 | else |
76 | else |
73 | ev_syserr ("(libev) port_associate"); |
77 | ev_syserr ("(libev) port_associate"); |
74 | } |
78 | } |
75 | } |
79 | } |
76 | |
80 | |
… | |
… | |
126 | |
130 | |
127 | fd_change (EV_A_ fd, EV__IOFDSET); |
131 | fd_change (EV_A_ fd, EV__IOFDSET); |
128 | } |
132 | } |
129 | } |
133 | } |
130 | |
134 | |
131 | if (expect_false (nget == port_eventmax)) |
135 | if (ecb_expect_false (nget == port_eventmax)) |
132 | { |
136 | { |
133 | ev_free (port_events); |
137 | ev_free (port_events); |
134 | port_eventmax = array_nextsize (sizeof (port_event_t), port_eventmax, port_eventmax + 1); |
138 | 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); |
139 | port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax); |
136 | } |
140 | } |
137 | } |
141 | } |
138 | |
142 | |
139 | int inline_size |
143 | inline_size |
|
|
144 | int |
140 | port_init (EV_P_ int flags) |
145 | port_init (EV_P_ int flags) |
141 | { |
146 | { |
142 | /* Initialize the kernel queue */ |
147 | /* Initialize the kernel queue */ |
143 | if ((backend_fd = port_create ()) < 0) |
148 | if ((backend_fd = port_create ()) < 0) |
144 | return 0; |
149 | return 0; |
145 | |
150 | |
146 | assert (("libev: PORT_SOURCE_FD must not be zero", PORT_SOURCE_FD)); |
151 | assert (("libev: PORT_SOURCE_FD must not be zero", PORT_SOURCE_FD)); |
147 | |
152 | |
148 | fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */ |
153 | fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */ |
149 | |
154 | |
|
|
155 | /* if my reading of the opensolaris kernel sources are correct, then |
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|
156 | * opensolaris does something very stupid: it checks if the time has already |
|
|
157 | * elapsed and doesn't round up if that is the case, otherwise it DOES round |
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|
158 | * up. Since we can't know what the case is, we need to guess by using a |
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159 | * "large enough" timeout. Normally, 1e-9 would be correct. |
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|
160 | */ |
150 | backend_fudge = 1e-3; /* needed to compensate for port_getn returning early */ |
161 | backend_mintime = EV_TS_CONST (1e-3); /* needed to compensate for port_getn returning early */ |
151 | backend_modify = port_modify; |
162 | backend_modify = port_modify; |
152 | backend_poll = port_poll; |
163 | backend_poll = port_poll; |
153 | |
164 | |
154 | port_eventmax = 64; /* initial number of events receivable per poll */ |
165 | port_eventmax = 64; /* initial number of events receivable per poll */ |
155 | port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax); |
166 | port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax); |
156 | |
167 | |
157 | return EVBACKEND_PORT; |
168 | return EVBACKEND_PORT; |
158 | } |
169 | } |
159 | |
170 | |
160 | void inline_size |
171 | inline_size |
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|
172 | void |
161 | port_destroy (EV_P) |
173 | port_destroy (EV_P) |
162 | { |
174 | { |
163 | ev_free (port_events); |
175 | ev_free (port_events); |
164 | } |
176 | } |
165 | |
177 | |
166 | void inline_size |
178 | inline_size |
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|
179 | void |
167 | port_fork (EV_P) |
180 | port_fork (EV_P) |
168 | { |
181 | { |
169 | close (backend_fd); |
182 | close (backend_fd); |
170 | |
183 | |
171 | while ((backend_fd = port_create ()) < 0) |
184 | while ((backend_fd = port_create ()) < 0) |