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1 | /* | |
2 | * ircd-ratbox: A slightly useful ircd. | |
3 | * ports.c: Solaris ports compatible network routines. | |
4 | * | |
5 | * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center | |
6 | * Copyright (C) 1996-2002 Hybrid Development Team | |
7 | * Copyright (C) 2001 Adrian Chadd <adrian@creative.net.au> | |
8 | * Copyright (C) 2002-2004,2008 ircd-ratbox development team | |
9 | * Copyright (C) 2005 Edward Brocklesby. | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 | |
24 | * USA | |
25 | * | |
26 | */ | |
27 | ||
28 | #include <libratbox_config.h> | |
29 | #include <ratbox_lib.h> | |
30 | #include <commio-int.h> | |
31 | #include <event-int.h> | |
32 | #if defined(HAVE_PORT_H) && (HAVE_PORT_CREATE) | |
33 | ||
34 | #include <port.h> | |
35 | ||
36 | #define PE_LENGTH 128 | |
37 | ||
38 | static int pe; | |
39 | static struct timespec zero_timespec; | |
40 | ||
41 | static port_event_t *pelst; /* port buffer */ | |
42 | static int pemax; /* max structs to buffer */ | |
43 | ||
44 | int | |
45 | rb_setup_fd_ports(rb_fde_t *F) | |
46 | { | |
47 | return 0; | |
48 | } | |
49 | ||
50 | /* | |
51 | * rb_init_netio | |
52 | * | |
53 | * This is a needed exported function which will be called to initialise | |
54 | * the network loop code. | |
55 | */ | |
56 | ||
57 | int | |
58 | rb_init_netio_ports(void) | |
59 | { | |
60 | if((pe = port_create()) < 0) | |
61 | { | |
62 | return errno; | |
63 | } | |
64 | pemax = getdtablesize(); | |
65 | pelst = rb_malloc(sizeof(port_event_t) * pemax); | |
66 | zero_timespec.tv_sec = 0; | |
67 | zero_timespec.tv_nsec = 0; | |
68 | rb_set_time(); | |
69 | return 0; | |
70 | } | |
71 | ||
72 | /* | |
73 | * rb_setselect | |
74 | * | |
75 | * This is a needed exported function which will be called to register | |
76 | * and deregister interest in a pending IO state for a given FD. | |
77 | */ | |
78 | void | |
79 | rb_setselect_ports(rb_fde_t *F, unsigned int type, PF * handler, void *client_data) | |
80 | { | |
81 | lrb_assert(IsFDOpen(F)); | |
82 | int old_flags = F->pflags; | |
83 | ||
84 | if(type & RB_SELECT_READ) | |
85 | { | |
86 | F->read_handler = handler; | |
87 | F->read_data = client_data; | |
88 | } | |
89 | if(type & RB_SELECT_WRITE) | |
90 | { | |
91 | F->write_handler = handler; | |
92 | F->write_data = client_data; | |
93 | } | |
94 | F->pflags = 0; | |
95 | ||
96 | if(F->read_handler != NULL) | |
97 | F->pflags = POLLIN; | |
98 | if(F->write_handler != NULL) | |
99 | F->pflags |= POLLOUT; | |
100 | ||
101 | if(old_flags == 0 && F->pflags == 0) | |
102 | return; | |
103 | else if(F->pflags <= 0) | |
104 | { | |
105 | port_dissociate(pe, PORT_SOURCE_FD, F->fd); | |
106 | return; | |
107 | } | |
108 | ||
109 | port_associate(pe, PORT_SOURCE_FD, F->fd, F->pflags, F); | |
110 | ||
111 | } | |
112 | ||
113 | /* | |
114 | * rb_select | |
115 | * | |
116 | * Called to do the new-style IO, courtesy of squid (like most of this | |
117 | * new IO code). This routine handles the stuff we've hidden in | |
118 | * rb_setselect and fd_table[] and calls callbacks for IO ready | |
119 | * events. | |
120 | */ | |
121 | ||
122 | int | |
123 | rb_select_ports(long delay) | |
124 | { | |
125 | int i, fd; | |
126 | int nget = 1; | |
127 | struct timespec poll_time; | |
128 | struct timespec *p = NULL; | |
129 | struct ev_entry *ev; | |
130 | ||
131 | if(delay >= 0) | |
132 | { | |
133 | poll_time.tv_sec = delay / 1000; | |
134 | poll_time.tv_nsec = (delay % 1000) * 1000000; | |
135 | p = &poll_time; | |
136 | } | |
137 | ||
138 | ||
139 | i = port_getn(pe, pelst, pemax, &nget, p); | |
140 | rb_set_time(); | |
141 | ||
142 | if(i == -1) | |
143 | return RB_OK; | |
144 | ||
145 | for(i = 0; i < nget; i++) | |
146 | { | |
147 | if(pelst[i].portev_source == PORT_SOURCE_FD) | |
148 | { | |
149 | fd = pelst[i].portev_object; | |
150 | PF *hdl = NULL; | |
151 | rb_fde_t *F = pelst[i].portev_user; | |
152 | if((pelst[i].portev_events & (POLLIN | POLLHUP | POLLERR)) && (hdl = F->read_handler)) | |
153 | { | |
154 | F->read_handler = NULL; | |
155 | hdl(F, F->read_data); | |
156 | } | |
157 | if((pelst[i].portev_events & (POLLOUT | POLLHUP | POLLERR)) && (hdl = F->write_handler)) | |
158 | { | |
159 | F->write_handler = NULL; | |
160 | hdl(F, F->write_data); | |
161 | } | |
162 | } else if(pelst[i].portev_source == PORT_SOURCE_TIMER) | |
163 | { | |
164 | ev = (struct ev_entry *)pelst[i].portev_user; | |
165 | rb_run_event(ev); | |
166 | } | |
167 | } | |
168 | return RB_OK; | |
169 | } | |
170 | ||
171 | int | |
172 | rb_ports_supports_event(void) | |
173 | { | |
174 | return 1; | |
175 | }; | |
176 | ||
177 | void | |
178 | rb_ports_init_event(void) | |
179 | { | |
180 | return; | |
181 | } | |
182 | ||
183 | int | |
184 | rb_ports_sched_event(struct ev_entry *event, int when) | |
185 | { | |
186 | timer_t *id; | |
187 | struct sigevent ev; | |
188 | port_notify_t not; | |
189 | struct itimerspec ts; | |
190 | ||
191 | event->comm_ptr = rb_malloc(sizeof(timer_t)); | |
192 | id = event->comm_ptr; | |
193 | ||
194 | memset(&ev, 0, sizeof(ev)); | |
195 | ev.sigev_notify = SIGEV_PORT; | |
196 | ev.sigev_value.sival_ptr = ¬ | |
197 | ||
198 | memset(¬, 0, sizeof(not)); | |
199 | not.portnfy_port = pe; | |
200 | not.portnfy_user = event; | |
201 | ||
202 | if(timer_create(CLOCK_REALTIME, &ev, id) < 0) | |
203 | { | |
204 | rb_lib_log("timer_create: %s\n", strerror(errno)); | |
205 | return 0; | |
206 | } | |
207 | ||
208 | memset(&ts, 0, sizeof(ts)); | |
209 | ts.it_value.tv_sec = when; | |
210 | ts.it_value.tv_nsec = 0; | |
211 | if(event->frequency != 0) | |
212 | ts.it_interval = ts.it_value; | |
213 | ||
214 | if(timer_settime(*id, 0, &ts, NULL) < 0) | |
215 | { | |
216 | rb_lib_log("timer_settime: %s\n", strerror(errno)); | |
217 | return 0; | |
218 | } | |
219 | return 1; | |
220 | } | |
221 | ||
222 | void | |
223 | rb_ports_unsched_event(struct ev_entry *event) | |
224 | { | |
225 | timer_delete(*((timer_t *) event->comm_ptr)); | |
226 | rb_free(event->comm_ptr); | |
227 | event->comm_ptr = NULL; | |
228 | } | |
229 | #else /* ports not supported */ | |
230 | ||
231 | int | |
232 | rb_ports_supports_event(void) | |
233 | { | |
234 | errno = ENOSYS; | |
235 | return 0; | |
236 | } | |
237 | ||
238 | void | |
239 | rb_ports_init_event(void) | |
240 | { | |
241 | return; | |
242 | } | |
243 | ||
244 | int | |
245 | rb_ports_sched_event(struct ev_entry *event, int when) | |
246 | { | |
247 | errno = ENOSYS; | |
248 | return -1; | |
249 | } | |
250 | ||
251 | void | |
252 | rb_ports_unsched_event(struct ev_entry *event) | |
253 | { | |
254 | return; | |
255 | } | |
256 | ||
257 | int | |
258 | rb_init_netio_ports(void) | |
259 | { | |
260 | return ENOSYS; | |
261 | } | |
262 | ||
263 | void | |
264 | rb_setselect_ports(rb_fde_t *F, unsigned int type, PF * handler, void *client_data) | |
265 | { | |
266 | errno = ENOSYS; | |
267 | return; | |
268 | } | |
269 | ||
270 | int | |
271 | rb_select_ports(long delay) | |
272 | { | |
273 | errno = ENOSYS; | |
274 | return -1; | |
275 | } | |
276 | ||
277 | int | |
278 | rb_setup_fd_ports(rb_fde_t *F) | |
279 | { | |
280 | errno = ENOSYS; | |
281 | return -1; | |
282 | } | |
283 | ||
284 | ||
285 | #endif |