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1 | /* |
1 | /* |
2 | * Copyright (C) 2006 Ondrej Palkovsky |
2 | * Copyright (C) 2006 Ondrej Palkovsky |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | #include <ipc/ipc.h> |
29 | #include <ipc/ipc.h> |
30 | #include <libc.h> |
30 | #include <libc.h> |
31 | #include <malloc.h> |
31 | #include <malloc.h> |
32 | #include <errno.h> |
32 | #include <errno.h> |
33 | #include <libadt/list.h> |
33 | #include <libadt/list.h> |
34 | #include <stdio.h> |
34 | #include <stdio.h> |
35 | #include <unistd.h> |
35 | #include <unistd.h> |
36 | #include <futex.h> |
36 | #include <futex.h> |
37 | #include <kernel/synch/synch.h> |
37 | #include <kernel/synch/synch.h> |
- | 38 | #include <async.h> |
|
- | 39 | #include <psthread.h> |
|
38 | 40 | ||
39 | /** Structure used for keeping track of sent async msgs |
41 | /** Structure used for keeping track of sent async msgs |
40 | * and queing unsent msgs |
42 | * and queing unsent msgs |
41 | * |
43 | * |
42 | */ |
44 | */ |
43 | typedef struct { |
45 | typedef struct { |
44 | link_t list; |
46 | link_t list; |
45 | 47 | ||
46 | ipc_async_callback_t callback; |
48 | ipc_async_callback_t callback; |
47 | void *private; |
49 | void *private; |
48 | union { |
50 | union { |
49 | ipc_callid_t callid; |
51 | ipc_callid_t callid; |
50 | struct { |
52 | struct { |
51 | ipc_call_t data; |
53 | ipc_call_t data; |
52 | int phoneid; |
54 | int phoneid; |
53 | } msg; |
55 | } msg; |
54 | }u; |
56 | }u; |
- | 57 | pstid_t ptid; /**< Thread waiting for sending this msg */ |
|
55 | } async_call_t; |
58 | } async_call_t; |
56 | 59 | ||
57 | LIST_INITIALIZE(dispatched_calls); |
60 | LIST_INITIALIZE(dispatched_calls); |
- | 61 | ||
- | 62 | /* queued_calls is protcted by async_futex, because if the |
|
- | 63 | * call cannot be sent into kernel, async framework is used |
|
- | 64 | * automatically |
|
- | 65 | */ |
|
58 | LIST_INITIALIZE(queued_calls); |
66 | LIST_INITIALIZE(queued_calls); /**< List of async calls that were not accepted |
- | 67 | * by kernel */ |
|
59 | 68 | ||
60 | static atomic_t ipc_futex = FUTEX_INITIALIZER; |
69 | static atomic_t ipc_futex = FUTEX_INITIALIZER; |
61 | 70 | ||
62 | int ipc_call_sync(int phoneid, ipcarg_t method, ipcarg_t arg1, |
71 | int ipc_call_sync(int phoneid, ipcarg_t method, ipcarg_t arg1, |
63 | ipcarg_t *result) |
72 | ipcarg_t *result) |
64 | { |
73 | { |
65 | ipc_call_t resdata; |
74 | ipc_call_t resdata; |
66 | int callres; |
75 | int callres; |
67 | 76 | ||
68 | callres = __SYSCALL4(SYS_IPC_CALL_SYNC_FAST, phoneid, method, arg1, |
77 | callres = __SYSCALL4(SYS_IPC_CALL_SYNC_FAST, phoneid, method, arg1, |
69 | (sysarg_t)&resdata); |
78 | (sysarg_t)&resdata); |
70 | if (callres) |
79 | if (callres) |
71 | return callres; |
80 | return callres; |
72 | if (result) |
81 | if (result) |
73 | *result = IPC_GET_ARG1(resdata); |
82 | *result = IPC_GET_ARG1(resdata); |
74 | return IPC_GET_RETVAL(resdata); |
83 | return IPC_GET_RETVAL(resdata); |
75 | } |
84 | } |
76 | 85 | ||
77 | int ipc_call_sync_3(int phoneid, ipcarg_t method, ipcarg_t arg1, |
86 | int ipc_call_sync_3(int phoneid, ipcarg_t method, ipcarg_t arg1, |
78 | ipcarg_t arg2, ipcarg_t arg3, |
87 | ipcarg_t arg2, ipcarg_t arg3, |
79 | ipcarg_t *result1, ipcarg_t *result2, ipcarg_t *result3) |
88 | ipcarg_t *result1, ipcarg_t *result2, ipcarg_t *result3) |
80 | { |
89 | { |
81 | ipc_call_t data; |
90 | ipc_call_t data; |
82 | int callres; |
91 | int callres; |
83 | 92 | ||
84 | IPC_SET_METHOD(data, method); |
93 | IPC_SET_METHOD(data, method); |
85 | IPC_SET_ARG1(data, arg1); |
94 | IPC_SET_ARG1(data, arg1); |
86 | IPC_SET_ARG2(data, arg2); |
95 | IPC_SET_ARG2(data, arg2); |
87 | IPC_SET_ARG3(data, arg3); |
96 | IPC_SET_ARG3(data, arg3); |
88 | 97 | ||
89 | callres = __SYSCALL3(SYS_IPC_CALL_SYNC, phoneid, (sysarg_t)&data, |
98 | callres = __SYSCALL3(SYS_IPC_CALL_SYNC, phoneid, (sysarg_t)&data, |
90 | (sysarg_t)&data); |
99 | (sysarg_t)&data); |
91 | if (callres) |
100 | if (callres) |
92 | return callres; |
101 | return callres; |
93 | 102 | ||
94 | if (result1) |
103 | if (result1) |
95 | *result1 = IPC_GET_ARG1(data); |
104 | *result1 = IPC_GET_ARG1(data); |
96 | if (result2) |
105 | if (result2) |
97 | *result2 = IPC_GET_ARG2(data); |
106 | *result2 = IPC_GET_ARG2(data); |
98 | if (result3) |
107 | if (result3) |
99 | *result3 = IPC_GET_ARG3(data); |
108 | *result3 = IPC_GET_ARG3(data); |
100 | return IPC_GET_RETVAL(data); |
109 | return IPC_GET_RETVAL(data); |
101 | } |
110 | } |
102 | 111 | ||
103 | /** Syscall to send asynchronous message */ |
112 | /** Syscall to send asynchronous message */ |
104 | static ipc_callid_t _ipc_call_async(int phoneid, ipc_call_t *data) |
113 | static ipc_callid_t _ipc_call_async(int phoneid, ipc_call_t *data) |
105 | { |
114 | { |
106 | return __SYSCALL2(SYS_IPC_CALL_ASYNC, phoneid, (sysarg_t)data); |
115 | return __SYSCALL2(SYS_IPC_CALL_ASYNC, phoneid, (sysarg_t)data); |
107 | } |
116 | } |
108 | 117 | ||
109 | /** Send asynchronous message |
118 | /** Send asynchronous message |
110 | * |
119 | * |
111 | * - if fatal error, call callback handler with proper error code |
120 | * - if fatal error, call callback handler with proper error code |
112 | * - if message cannot be temporarily sent, add to queue |
121 | * - if message cannot be temporarily sent, add to queue |
113 | */ |
122 | */ |
114 | void ipc_call_async_2(int phoneid, ipcarg_t method, ipcarg_t arg1, |
123 | void ipc_call_async_2(int phoneid, ipcarg_t method, ipcarg_t arg1, |
115 | ipcarg_t arg2, void *private, |
124 | ipcarg_t arg2, void *private, |
116 | ipc_async_callback_t callback) |
125 | ipc_async_callback_t callback) |
117 | { |
126 | { |
118 | async_call_t *call; |
127 | async_call_t *call; |
119 | ipc_callid_t callid; |
128 | ipc_callid_t callid; |
120 | 129 | ||
121 | call = malloc(sizeof(*call)); |
130 | call = malloc(sizeof(*call)); |
122 | if (!call) { |
131 | if (!call) { |
123 | if (callback) |
132 | if (callback) |
124 | callback(private, ENOMEM, NULL); |
133 | callback(private, ENOMEM, NULL); |
125 | return; |
134 | return; |
126 | } |
135 | } |
127 | 136 | ||
- | 137 | call->callback = callback; |
|
- | 138 | call->private = private; |
|
- | 139 | ||
- | 140 | /* We need to make sure that we get callid before |
|
- | 141 | * another thread accesses the queue again */ |
|
- | 142 | futex_down(&ipc_futex); |
|
128 | callid = __SYSCALL4(SYS_IPC_CALL_ASYNC_FAST, phoneid, method, arg1, arg2); |
143 | callid = __SYSCALL4(SYS_IPC_CALL_ASYNC_FAST, phoneid, method, arg1, arg2); |
129 | if (callid == IPC_CALLRET_FATAL) { |
144 | if (callid == IPC_CALLRET_FATAL) { |
- | 145 | futex_up(&ipc_futex); |
|
130 | /* Call asynchronous handler with error code */ |
146 | /* Call asynchronous handler with error code */ |
131 | if (callback) |
147 | if (callback) |
132 | callback(private, ENOENT, NULL); |
148 | callback(private, ENOENT, NULL); |
133 | free(call); |
149 | free(call); |
134 | return; |
150 | return; |
135 | } |
151 | } |
136 | 152 | ||
137 | call->callback = callback; |
- | |
138 | call->private = private; |
- | |
139 | - | ||
140 | if (callid == IPC_CALLRET_TEMPORARY) { |
153 | if (callid == IPC_CALLRET_TEMPORARY) { |
141 | /* Add asynchronous call to queue of non-dispatched async calls */ |
154 | futex_up(&ipc_futex); |
- | 155 | ||
142 | call->u.msg.phoneid = phoneid; |
156 | call->u.msg.phoneid = phoneid; |
143 | IPC_SET_METHOD(call->u.msg.data, method); |
157 | IPC_SET_METHOD(call->u.msg.data, method); |
144 | IPC_SET_ARG1(call->u.msg.data, arg1); |
158 | IPC_SET_ARG1(call->u.msg.data, arg1); |
145 | IPC_SET_ARG2(call->u.msg.data, arg2); |
159 | IPC_SET_ARG2(call->u.msg.data, arg2); |
146 | 160 | ||
- | 161 | call->ptid = psthread_get_id(); |
|
147 | futex_down(&ipc_futex); |
162 | futex_down(&async_futex); |
148 | list_append(&call->list, &queued_calls); |
163 | list_append(&call->list, &queued_calls); |
- | 164 | ||
149 | futex_up(&ipc_futex); |
165 | psthread_schedule_next_adv(PS_TO_MANAGER); |
- | 166 | /* Async futex unlocked by previous call */ |
|
150 | return; |
167 | return; |
151 | } |
168 | } |
152 | call->u.callid = callid; |
169 | call->u.callid = callid; |
153 | /* Add call to list of dispatched calls */ |
170 | /* Add call to list of dispatched calls */ |
154 | futex_down(&ipc_futex); |
- | |
155 | list_append(&call->list, &dispatched_calls); |
171 | list_append(&call->list, &dispatched_calls); |
156 | futex_up(&ipc_futex); |
172 | futex_up(&ipc_futex); |
157 | } |
173 | } |
158 | 174 | ||
159 | 175 | ||
160 | /** Send a fast answer to a received call. |
176 | /** Send a fast answer to a received call. |
161 | * |
177 | * |
162 | * The fast answer makes use of passing retval and first two arguments in registers. |
178 | * The fast answer makes use of passing retval and first two arguments in registers. |
163 | * If you need to return more, use the ipc_answer() instead. |
179 | * If you need to return more, use the ipc_answer() instead. |
164 | * |
180 | * |
165 | * @param callid ID of the call being answered. |
181 | * @param callid ID of the call being answered. |
166 | * @param retval Return value. |
182 | * @param retval Return value. |
167 | * @param arg1 First return argument. |
183 | * @param arg1 First return argument. |
168 | * @param arg2 Second return argument. |
184 | * @param arg2 Second return argument. |
169 | * |
185 | * |
170 | * @return Zero on success or a value from @ref errno.h on failure. |
186 | * @return Zero on success or a value from @ref errno.h on failure. |
171 | */ |
187 | */ |
172 | ipcarg_t ipc_answer_fast(ipc_callid_t callid, ipcarg_t retval, ipcarg_t arg1, |
188 | ipcarg_t ipc_answer_fast(ipc_callid_t callid, ipcarg_t retval, ipcarg_t arg1, |
173 | ipcarg_t arg2) |
189 | ipcarg_t arg2) |
174 | { |
190 | { |
175 | return __SYSCALL4(SYS_IPC_ANSWER_FAST, callid, retval, arg1, arg2); |
191 | return __SYSCALL4(SYS_IPC_ANSWER_FAST, callid, retval, arg1, arg2); |
176 | } |
192 | } |
177 | 193 | ||
178 | /** Send a full answer to a received call. |
194 | /** Send a full answer to a received call. |
179 | * |
195 | * |
180 | * @param callid ID of the call being answered. |
196 | * @param callid ID of the call being answered. |
181 | * @param call Call data. Must be already initialized by the responder. |
197 | * @param call Call data. Must be already initialized by the responder. |
182 | * |
198 | * |
183 | * @return Zero on success or a value from @ref errno.h on failure. |
199 | * @return Zero on success or a value from @ref errno.h on failure. |
184 | */ |
200 | */ |
185 | ipcarg_t ipc_answer(ipc_callid_t callid, ipc_call_t *call) |
201 | ipcarg_t ipc_answer(ipc_callid_t callid, ipc_call_t *call) |
186 | { |
202 | { |
187 | return __SYSCALL2(SYS_IPC_ANSWER, callid, (sysarg_t) call); |
203 | return __SYSCALL2(SYS_IPC_ANSWER, callid, (sysarg_t) call); |
188 | } |
204 | } |
189 | 205 | ||
190 | 206 | ||
191 | /** Try to dispatch queed calls from async queue */ |
207 | /** Try to dispatch queed calls from async queue */ |
192 | static void try_dispatch_queued_calls(void) |
208 | static void try_dispatch_queued_calls(void) |
193 | { |
209 | { |
194 | async_call_t *call; |
210 | async_call_t *call; |
195 | ipc_callid_t callid; |
211 | ipc_callid_t callid; |
196 | 212 | ||
- | 213 | /* TODO: integrate intelligently ipc_futex, so that it |
|
- | 214 | * is locked during ipc_call_async, until it is added |
|
- | 215 | * to dispatched_calls |
|
- | 216 | */ |
|
197 | futex_down(&ipc_futex); |
217 | futex_down(&async_futex); |
198 | while (!list_empty(&queued_calls)) { |
218 | while (!list_empty(&queued_calls)) { |
199 | call = list_get_instance(queued_calls.next, async_call_t, |
219 | call = list_get_instance(queued_calls.next, async_call_t, |
200 | list); |
220 | list); |
201 | 221 | ||
202 | callid = _ipc_call_async(call->u.msg.phoneid, |
222 | callid = _ipc_call_async(call->u.msg.phoneid, |
203 | &call->u.msg.data); |
223 | &call->u.msg.data); |
204 | if (callid == IPC_CALLRET_TEMPORARY) |
224 | if (callid == IPC_CALLRET_TEMPORARY) { |
205 | break; |
225 | break; |
- | 226 | } |
|
206 | list_remove(&call->list); |
227 | list_remove(&call->list); |
207 | 228 | ||
- | 229 | futex_up(&async_futex); |
|
- | 230 | psthread_add_ready(call->ptid); |
|
- | 231 | ||
208 | if (callid == IPC_CALLRET_FATAL) { |
232 | if (callid == IPC_CALLRET_FATAL) { |
209 | futex_up(&ipc_futex); |
- | |
210 | if (call->callback) |
233 | if (call->callback) |
211 | call->callback(call->private, ENOENT, NULL); |
234 | call->callback(call->private, ENOENT, NULL); |
212 | free(call); |
235 | free(call); |
213 | futex_down(&ipc_futex); |
- | |
214 | } else { |
236 | } else { |
215 | call->u.callid = callid; |
237 | call->u.callid = callid; |
- | 238 | futex_down(&ipc_futex); |
|
216 | list_append(&call->list, &dispatched_calls); |
239 | list_append(&call->list, &dispatched_calls); |
- | 240 | futex_up(&ipc_futex); |
|
217 | } |
241 | } |
- | 242 | futex_down(&async_futex); |
|
218 | } |
243 | } |
219 | futex_up(&ipc_futex); |
244 | futex_up(&async_futex); |
220 | } |
245 | } |
221 | 246 | ||
222 | /** Handle received answer |
247 | /** Handle received answer |
223 | * |
248 | * |
224 | * TODO: Make it use hash table |
249 | * TODO: Make it use hash table |
225 | * |
250 | * |
226 | * @param callid Callid (with first bit set) of the answered call |
251 | * @param callid Callid (with first bit set) of the answered call |
227 | */ |
252 | */ |
228 | static void handle_answer(ipc_callid_t callid, ipc_call_t *data) |
253 | static void handle_answer(ipc_callid_t callid, ipc_call_t *data) |
229 | { |
254 | { |
230 | link_t *item; |
255 | link_t *item; |
231 | async_call_t *call; |
256 | async_call_t *call; |
232 | 257 | ||
233 | callid &= ~IPC_CALLID_ANSWERED; |
258 | callid &= ~IPC_CALLID_ANSWERED; |
234 | 259 | ||
235 | futex_down(&ipc_futex); |
260 | futex_down(&ipc_futex); |
236 | for (item = dispatched_calls.next; item != &dispatched_calls; |
261 | for (item = dispatched_calls.next; item != &dispatched_calls; |
237 | item = item->next) { |
262 | item = item->next) { |
238 | call = list_get_instance(item, async_call_t, list); |
263 | call = list_get_instance(item, async_call_t, list); |
239 | if (call->u.callid == callid) { |
264 | if (call->u.callid == callid) { |
240 | list_remove(&call->list); |
265 | list_remove(&call->list); |
241 | futex_up(&ipc_futex); |
266 | futex_up(&ipc_futex); |
242 | if (call->callback) |
267 | if (call->callback) |
243 | call->callback(call->private, |
268 | call->callback(call->private, |
244 | IPC_GET_RETVAL(*data), |
269 | IPC_GET_RETVAL(*data), |
245 | data); |
270 | data); |
246 | free(call); |
271 | free(call); |
247 | return; |
272 | return; |
248 | } |
273 | } |
249 | } |
274 | } |
250 | futex_up(&ipc_futex); |
275 | futex_up(&ipc_futex); |
251 | printf("Received unidentified answer: %P!!!\n", callid); |
276 | printf("Received unidentified answer: %P!!!\n", callid); |
252 | } |
277 | } |
253 | 278 | ||
254 | 279 | ||
255 | /** One cycle of ipc wait for call call |
280 | /** One cycle of ipc wait for call call |
256 | * |
281 | * |
257 | * - dispatch ASYNC reoutines in the background |
282 | * - dispatch ASYNC reoutines in the background |
258 | * @param call Space where the message is stored |
283 | * @param call Space where the message is stored |
259 | * @param usec Timeout in microseconds |
284 | * @param usec Timeout in microseconds |
260 | * @param flags Flags passed to SYS_IPC_WAIT (blocking, nonblocking) |
285 | * @param flags Flags passed to SYS_IPC_WAIT (blocking, nonblocking) |
261 | * @return Callid of the answer. |
286 | * @return Callid of the answer. |
262 | */ |
287 | */ |
263 | ipc_callid_t ipc_wait_cycle(ipc_call_t *call, uint32_t usec, int flags) |
288 | ipc_callid_t ipc_wait_cycle(ipc_call_t *call, uint32_t usec, int flags) |
264 | { |
289 | { |
265 | ipc_callid_t callid; |
290 | ipc_callid_t callid; |
266 | 291 | ||
267 | try_dispatch_queued_calls(); |
- | |
268 | - | ||
269 | callid = __SYSCALL3(SYS_IPC_WAIT, (sysarg_t) call, usec, flags); |
292 | callid = __SYSCALL3(SYS_IPC_WAIT, (sysarg_t) call, usec, flags); |
270 | /* Handle received answers */ |
293 | /* Handle received answers */ |
271 | if (callid & IPC_CALLID_ANSWERED) |
294 | if (callid & IPC_CALLID_ANSWERED) { |
272 | handle_answer(callid, call); |
295 | handle_answer(callid, call); |
- | 296 | try_dispatch_queued_calls(); |
|
- | 297 | } |
|
273 | 298 | ||
274 | return callid; |
299 | return callid; |
275 | } |
300 | } |
276 | 301 | ||
277 | /** Wait some time for an IPC call. |
302 | /** Wait some time for an IPC call. |
278 | * |
303 | * |
279 | * - dispatch ASYNC reoutines in the background |
304 | * - dispatch ASYNC reoutines in the background |
280 | * @param call Space where the message is stored |
305 | * @param call Space where the message is stored |
281 | * @param usec Timeout in microseconds. |
306 | * @param usec Timeout in microseconds. |
282 | * @return Callid of the answer. |
307 | * @return Callid of the answer. |
283 | */ |
308 | */ |
284 | ipc_callid_t ipc_wait_for_call_timeout(ipc_call_t *call, uint32_t usec) |
309 | ipc_callid_t ipc_wait_for_call_timeout(ipc_call_t *call, uint32_t usec) |
285 | { |
310 | { |
286 | ipc_callid_t callid; |
311 | ipc_callid_t callid; |
287 | 312 | ||
288 | do { |
313 | do { |
289 | callid = ipc_wait_cycle(call, usec, SYNCH_BLOCKING); |
314 | callid = ipc_wait_cycle(call, usec, SYNCH_BLOCKING); |
290 | } while (callid & IPC_CALLID_ANSWERED); |
315 | } while (callid & IPC_CALLID_ANSWERED); |
291 | 316 | ||
292 | return callid; |
317 | return callid; |
293 | } |
318 | } |
294 | 319 | ||
295 | /** Check if there is an IPC call waiting to be picked up. |
320 | /** Check if there is an IPC call waiting to be picked up. |
296 | * |
321 | * |
297 | * - dispatch ASYNC reoutines in the background |
322 | * - dispatch ASYNC reoutines in the background |
298 | * @param call Space where the message is stored |
323 | * @param call Space where the message is stored |
299 | * @return Callid of the answer. |
324 | * @return Callid of the answer. |
300 | */ |
325 | */ |
301 | ipc_callid_t ipc_trywait_for_call(ipc_call_t *call) |
326 | ipc_callid_t ipc_trywait_for_call(ipc_call_t *call) |
302 | { |
327 | { |
303 | ipc_callid_t callid; |
328 | ipc_callid_t callid; |
304 | 329 | ||
305 | do { |
330 | do { |
306 | callid = ipc_wait_cycle(call, SYNCH_NO_TIMEOUT, SYNCH_NON_BLOCKING); |
331 | callid = ipc_wait_cycle(call, SYNCH_NO_TIMEOUT, SYNCH_NON_BLOCKING); |
307 | } while (callid & IPC_CALLID_ANSWERED); |
332 | } while (callid & IPC_CALLID_ANSWERED); |
308 | 333 | ||
309 | return callid; |
334 | return callid; |
310 | } |
335 | } |
311 | 336 | ||
312 | /** Ask destination to do a callback connection |
337 | /** Ask destination to do a callback connection |
313 | * |
338 | * |
314 | * @return 0 - OK, error code |
339 | * @return 0 - OK, error code |
315 | */ |
340 | */ |
316 | int ipc_connect_to_me(int phoneid, int arg1, int arg2, ipcarg_t *phone) |
341 | int ipc_connect_to_me(int phoneid, int arg1, int arg2, ipcarg_t *phone) |
317 | { |
342 | { |
318 | return ipc_call_sync_3(phoneid, IPC_M_CONNECT_TO_ME, arg1, |
343 | return ipc_call_sync_3(phoneid, IPC_M_CONNECT_TO_ME, arg1, |
319 | arg2, 0, 0, 0, phone); |
344 | arg2, 0, 0, 0, phone); |
320 | } |
345 | } |
321 | 346 | ||
322 | /** Ask through phone for a new connection to some service |
347 | /** Ask through phone for a new connection to some service |
323 | * |
348 | * |
324 | * @return new phoneid - OK, error code |
349 | * @return new phoneid - OK, error code |
325 | */ |
350 | */ |
326 | int ipc_connect_me_to(int phoneid, int arg1, int arg2) |
351 | int ipc_connect_me_to(int phoneid, int arg1, int arg2) |
327 | { |
352 | { |
328 | ipcarg_t newphid; |
353 | ipcarg_t newphid; |
329 | int res; |
354 | int res; |
330 | 355 | ||
331 | res = ipc_call_sync_3(phoneid, IPC_M_CONNECT_ME_TO, arg1, |
356 | res = ipc_call_sync_3(phoneid, IPC_M_CONNECT_ME_TO, arg1, |
332 | arg2, 0, 0, 0, &newphid); |
357 | arg2, 0, 0, 0, &newphid); |
333 | if (res) |
358 | if (res) |
334 | return res; |
359 | return res; |
335 | return newphid; |
360 | return newphid; |
336 | } |
361 | } |
337 | 362 | ||
338 | /* Hang up specified phone */ |
363 | /* Hang up specified phone */ |
339 | int ipc_hangup(int phoneid) |
364 | int ipc_hangup(int phoneid) |
340 | { |
365 | { |
341 | return __SYSCALL1(SYS_IPC_HANGUP, phoneid); |
366 | return __SYSCALL1(SYS_IPC_HANGUP, phoneid); |
342 | } |
367 | } |
343 | 368 | ||
344 | int ipc_register_irq(int irq, irq_code_t *ucode) |
369 | int ipc_register_irq(int irq, irq_code_t *ucode) |
345 | { |
370 | { |
346 | return __SYSCALL2(SYS_IPC_REGISTER_IRQ, irq, (sysarg_t) ucode); |
371 | return __SYSCALL2(SYS_IPC_REGISTER_IRQ, irq, (sysarg_t) ucode); |
347 | } |
372 | } |
348 | 373 | ||
349 | int ipc_unregister_irq(int irq) |
374 | int ipc_unregister_irq(int irq) |
350 | { |
375 | { |
351 | return __SYSCALL1(SYS_IPC_UNREGISTER_IRQ, irq); |
376 | return __SYSCALL1(SYS_IPC_UNREGISTER_IRQ, irq); |
352 | } |
377 | } |
353 | 378 | ||
354 | int ipc_forward_fast(ipc_callid_t callid, int phoneid, int method, ipcarg_t arg1) |
379 | int ipc_forward_fast(ipc_callid_t callid, int phoneid, int method, ipcarg_t arg1) |
355 | { |
380 | { |
356 | return __SYSCALL4(SYS_IPC_FORWARD_FAST, callid, phoneid, method, arg1); |
381 | return __SYSCALL4(SYS_IPC_FORWARD_FAST, callid, phoneid, method, arg1); |
357 | } |
382 | } |
358 | 383 | ||
359 | 384 | ||
360 | /** Open shared memory connection over specified phoneid |
385 | /** Open shared memory connection over specified phoneid |
361 | * |
386 | * |
362 | * |
387 | * |
363 | * Allocate as_area, notify the other side about our intention |
388 | * Allocate as_area, notify the other side about our intention |
364 | * to open the connection |
389 | * to open the connection |
365 | * |
390 | * |
366 | * @return Connection id identifying this connection |
391 | * @return Connection id identifying this connection |
367 | */ |
392 | */ |
368 | //int ipc_dgr_open(int pohoneid, size_t bufsize) |
393 | //int ipc_dgr_open(int pohoneid, size_t bufsize) |
369 | //{ |
394 | //{ |
370 | /* Find new file descriptor in local descriptor table */ |
395 | /* Find new file descriptor in local descriptor table */ |
371 | /* Create AS_area, initialize structures */ |
396 | /* Create AS_area, initialize structures */ |
372 | /* Send AS to other side, handle error states */ |
397 | /* Send AS to other side, handle error states */ |
373 | 398 | ||
374 | //} |
399 | //} |
375 | /* |
400 | /* |
376 | void ipc_dgr_close(int cid) |
401 | void ipc_dgr_close(int cid) |
377 | { |
402 | { |
378 | } |
403 | } |
379 | 404 | ||
380 | void * ipc_dgr_alloc(int cid, size_t size) |
405 | void * ipc_dgr_alloc(int cid, size_t size) |
381 | { |
406 | { |
382 | } |
407 | } |
383 | 408 | ||
384 | void ipc_dgr_free(int cid, void *area) |
409 | void ipc_dgr_free(int cid, void *area) |
385 | { |
410 | { |
386 | 411 | ||
387 | } |
412 | } |
388 | 413 | ||
389 | int ipc_dgr_send(int cid, void *area) |
414 | int ipc_dgr_send(int cid, void *area) |
390 | { |
415 | { |
391 | } |
416 | } |
392 | 417 | ||
393 | 418 | ||
394 | int ipc_dgr_send_data(int cid, void *data, size_t size) |
419 | int ipc_dgr_send_data(int cid, void *data, size_t size) |
395 | { |
420 | { |
396 | } |
421 | } |
397 | 422 | ||
398 | */ |
423 | */ |
399 | 424 |