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| 4 | * Copyright (c) 2007,2008,2009,2010,2011 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, |
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| 145 | |
145 | |
| 146 | assert (("libev: PORT_SOURCE_FD must not be zero", PORT_SOURCE_FD)); |
146 | assert (("libev: PORT_SOURCE_FD must not be zero", PORT_SOURCE_FD)); |
| 147 | |
147 | |
| 148 | fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */ |
148 | fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */ |
| 149 | |
149 | |
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150 | /* if my reading of the opensolaris kernel sources are correct, then |
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151 | * opensolaris does something very stupid: it checks if the time has already |
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152 | * elapsed and doesn't round up if that is the case,m otherwise it DOES round |
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153 | * up. Since we can't know what the case is, we need to guess by using a |
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154 | * "large enough" timeout. Normally, 1e-9 would be correct. |
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155 | */ |
| 150 | backend_fudge = 1e-3; /* needed to compensate for port_getn returning early */ |
156 | backend_mintime = 1e-3; /* needed to compensate for port_getn returning early */ |
| 151 | backend_modify = port_modify; |
157 | backend_modify = port_modify; |
| 152 | backend_poll = port_poll; |
158 | backend_poll = port_poll; |
| 153 | |
159 | |
| 154 | port_eventmax = 64; /* initial number of events receivable per poll */ |
160 | port_eventmax = 64; /* initial number of events receivable per poll */ |
| 155 | port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax); |
161 | port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax); |
| 156 | |
162 | |
| 157 | return EVBACKEND_PORT; |
163 | return EVBACKEND_PORT; |
