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8 | * 1. Redistributions of source code must retain the above copyright |
8 | * 1. Redistributions of source code must retain the above copyright |
9 | * notice, this list of conditions and the following disclaimer. |
9 | * notice, this list of conditions and the following disclaimer. |
10 | * 2. Redistributions in binary form must reproduce the above copyright |
10 | * 2. Redistributions in binary form must reproduce the above copyright |
11 | * notice, this list of conditions and the following disclaimer in the |
11 | * notice, this list of conditions and the following disclaimer in the |
12 | * documentation and/or other materials provided with the distribution. |
12 | * documentation and/or other materials provided with the distribution. |
13 | * 3. The name of the author may not be used to endorse or promote products |
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14 | * derived from this software without specific prior written permission. |
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15 | * |
13 | * |
16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
15 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
16 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
17 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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39 | * once more silently being discarded. |
37 | * once more silently being discarded. |
40 | */ |
38 | */ |
41 | if (!nev) |
39 | if (!nev) |
42 | { |
40 | { |
43 | if (oev) |
41 | if (oev) |
44 | port_dissociate (port_fd, PORT_SOURCE_FD, fd); |
42 | port_dissociate (backend_fd, PORT_SOURCE_FD, fd); |
45 | } |
43 | } |
46 | else if (0 > |
44 | else if (0 > |
47 | port_associate ( |
45 | port_associate ( |
48 | port_fd, PORT_SOURCE_FD, fd, |
46 | backend_fd, PORT_SOURCE_FD, fd, |
49 | (nev & EV_READ ? POLLIN : 0) |
47 | (nev & EV_READ ? POLLIN : 0) |
50 | | (nev & EV_WRITE ? POLLOUT : 0), |
48 | | (nev & EV_WRITE ? POLLOUT : 0), |
51 | 0 |
49 | 0 |
52 | ) |
50 | ) |
53 | ) |
51 | ) |
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66 | struct timespec ts; |
64 | struct timespec ts; |
67 | uint_t nget = 1; |
65 | uint_t nget = 1; |
68 | |
66 | |
69 | ts.tv_sec = (time_t)timeout; |
67 | ts.tv_sec = (time_t)timeout; |
70 | ts.tv_nsec = (long)(timeout - (ev_tstamp)ts.tv_sec) * 1e9; |
68 | ts.tv_nsec = (long)(timeout - (ev_tstamp)ts.tv_sec) * 1e9; |
71 | res = port_getn (port_fd, port_events, port_eventmax, &nget, &ts); |
69 | res = port_getn (backend_fd, port_events, port_eventmax, &nget, &ts); |
72 | |
70 | |
73 | if (res < 0) |
71 | if (res < 0) |
74 | { |
72 | { |
75 | if (errno != EINTR && errno != ETIME) |
73 | if (errno != EINTR && errno != ETIME) |
76 | syserr ("(libev) port_getn"); |
74 | syserr ("(libev) port_getn"); |
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106 | |
104 | |
107 | static int |
105 | static int |
108 | port_init (EV_P_ int flags) |
106 | port_init (EV_P_ int flags) |
109 | { |
107 | { |
110 | /* Initalize the kernel queue */ |
108 | /* Initalize the kernel queue */ |
111 | if ((port_fd = port_create ()) < 0) |
109 | if ((backend_fd = port_create ()) < 0) |
112 | return 0; |
110 | return 0; |
113 | |
111 | |
114 | fcntl (port_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */ |
112 | fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */ |
115 | |
113 | |
116 | method_fudge = 1e-3; /* needed to compensate for port_getn returning early */ |
114 | backend_fudge = 1e-3; /* needed to compensate for port_getn returning early */ |
117 | method_modify = port_modify; |
115 | backend_modify = port_modify; |
118 | method_poll = port_poll; |
116 | backend_poll = port_poll; |
119 | |
117 | |
120 | port_eventmax = 64; /* intiial number of events receivable per poll */ |
118 | port_eventmax = 64; /* intiial number of events receivable per poll */ |
121 | port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax); |
119 | port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax); |
122 | |
120 | |
123 | return EVMETHOD_PORT; |
121 | return EVBACKEND_PORT; |
124 | } |
122 | } |
125 | |
123 | |
126 | static void |
124 | static void |
127 | port_destroy (EV_P) |
125 | port_destroy (EV_P) |
128 | { |
126 | { |
129 | close (port_fd); |
127 | close (backend_fd); |
130 | |
128 | |
131 | ev_free (port_events); |
129 | ev_free (port_events); |
132 | } |
130 | } |
133 | |
131 | |
134 | static void |
132 | static void |
135 | port_fork (EV_P) |
133 | port_fork (EV_P) |
136 | { |
134 | { |
137 | close (port_fd); |
135 | close (backend_fd); |
138 | |
136 | |
139 | while ((port_fd = port_create ()) < 0) |
137 | while ((backend_fd = port_create ()) < 0) |
140 | syserr ("(libev) port"); |
138 | syserr ("(libev) port"); |
141 | |
139 | |
142 | fcntl (port_fd, F_SETFD, FD_CLOEXEC); |
140 | fcntl (backend_fd, F_SETFD, FD_CLOEXEC); |
143 | |
141 | |
144 | /* re-register interest in fds */ |
142 | /* re-register interest in fds */ |
145 | fd_rearm_all (EV_A); |
143 | fd_rearm_all (EV_A); |
146 | } |
144 | } |
147 | |
145 | |