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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 | /** @addtogroup libc |
29 | /** @addtogroup libc |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | /** |
35 | /** |
36 | * Asynchronous library |
36 | * Asynchronous library |
37 | * |
37 | * |
38 | * The aim of this library is to provide a facility for writing programs which |
38 | * The aim of this library is to provide a facility for writing programs which |
39 | * utilize the asynchronous nature of HelenOS IPC, yet using a normal way of |
39 | * utilize the asynchronous nature of HelenOS IPC, yet using a normal way of |
40 | * programming. |
40 | * programming. |
41 | * |
41 | * |
42 | * You should be able to write very simple multithreaded programs, the async |
42 | * You should be able to write very simple multithreaded programs, the async |
43 | * framework will automatically take care of most synchronization problems. |
43 | * framework will automatically take care of most synchronization problems. |
44 | * |
44 | * |
45 | * Default semantics: |
45 | * Default semantics: |
46 | * - async_send_*(): Send asynchronously. If the kernel refuses to send |
46 | * - async_send_*(): Send asynchronously. If the kernel refuses to send |
47 | * more messages, [ try to get responses from kernel, if |
47 | * more messages, [ try to get responses from kernel, if |
48 | * nothing found, might try synchronous ] |
48 | * nothing found, might try synchronous ] |
49 | * |
49 | * |
50 | * Example of use (pseudo C): |
50 | * Example of use (pseudo C): |
51 | * |
51 | * |
52 | * 1) Multithreaded client application |
52 | * 1) Multithreaded client application |
53 | * |
53 | * |
54 | * fibril_create(fibril1, ...); |
54 | * fibril_create(fibril1, ...); |
55 | * fibril_create(fibril2, ...); |
55 | * fibril_create(fibril2, ...); |
56 | * ... |
56 | * ... |
57 | * |
57 | * |
58 | * int fibril1(void *arg) |
58 | * int fibril1(void *arg) |
59 | * { |
59 | * { |
60 | * conn = ipc_connect_me_to(); |
60 | * conn = ipc_connect_me_to(); |
61 | * c1 = async_send(conn); |
61 | * c1 = async_send(conn); |
62 | * c2 = async_send(conn); |
62 | * c2 = async_send(conn); |
63 | * async_wait_for(c1); |
63 | * async_wait_for(c1); |
64 | * async_wait_for(c2); |
64 | * async_wait_for(c2); |
65 | * ... |
65 | * ... |
66 | * } |
66 | * } |
67 | * |
67 | * |
68 | * |
68 | * |
69 | * 2) Multithreaded server application |
69 | * 2) Multithreaded server application |
70 | * |
70 | * |
71 | * main() |
71 | * main() |
72 | * { |
72 | * { |
73 | * async_manager(); |
73 | * async_manager(); |
74 | * } |
74 | * } |
75 | * |
75 | * |
76 | * my_client_connection(icallid, *icall) |
76 | * my_client_connection(icallid, *icall) |
77 | * { |
77 | * { |
78 | * if (want_refuse) { |
78 | * if (want_refuse) { |
79 | * ipc_answer_0(icallid, ELIMIT); |
79 | * ipc_answer_0(icallid, ELIMIT); |
80 | * return; |
80 | * return; |
81 | * } |
81 | * } |
82 | * ipc_answer_0(icallid, EOK); |
82 | * ipc_answer_0(icallid, EOK); |
83 | * |
83 | * |
84 | * callid = async_get_call(&call); |
84 | * callid = async_get_call(&call); |
85 | * handle_call(callid, call); |
85 | * handle_call(callid, call); |
86 | * ipc_answer_2(callid, 1, 2, 3); |
86 | * ipc_answer_2(callid, 1, 2, 3); |
87 | * |
87 | * |
88 | * callid = async_get_call(&call); |
88 | * callid = async_get_call(&call); |
89 | * ... |
89 | * ... |
90 | * } |
90 | * } |
91 | * |
91 | * |
92 | */ |
92 | */ |
93 | 93 | ||
94 | #include <futex.h> |
94 | #include <futex.h> |
95 | #include <async.h> |
95 | #include <async.h> |
96 | #include <fibril.h> |
96 | #include <fibril.h> |
97 | #include <stdio.h> |
97 | #include <stdio.h> |
98 | #include <adt/hash_table.h> |
98 | #include <adt/hash_table.h> |
99 | #include <adt/list.h> |
99 | #include <adt/list.h> |
100 | #include <ipc/ipc.h> |
100 | #include <ipc/ipc.h> |
101 | #include <assert.h> |
101 | #include <assert.h> |
102 | #include <errno.h> |
102 | #include <errno.h> |
103 | #include <sys/time.h> |
103 | #include <sys/time.h> |
104 | #include <arch/barrier.h> |
104 | #include <arch/barrier.h> |
105 | #include <bool.h> |
105 | #include <bool.h> |
106 | 106 | ||
107 | atomic_t async_futex = FUTEX_INITIALIZER; |
107 | atomic_t async_futex = FUTEX_INITIALIZER; |
108 | 108 | ||
109 | /** Structures of this type represent a waiting fibril. */ |
109 | /** Structures of this type represent a waiting fibril. */ |
110 | typedef struct { |
110 | typedef struct { |
111 | /** Expiration time. */ |
111 | /** Expiration time. */ |
112 | struct timeval expires; |
112 | struct timeval expires; |
113 | 113 | ||
114 | /** If true, this struct is in the timeout list. */ |
114 | /** If true, this struct is in the timeout list. */ |
115 | bool inlist; |
115 | bool inlist; |
116 | 116 | ||
117 | /** Timeout list link. */ |
117 | /** Timeout list link. */ |
118 | link_t link; |
118 | link_t link; |
119 | 119 | ||
120 | /** Identification of and link to the waiting fibril. */ |
120 | /** Identification of and link to the waiting fibril. */ |
121 | fid_t fid; |
121 | fid_t fid; |
122 | 122 | ||
123 | /** If true, this fibril is currently active. */ |
123 | /** If true, this fibril is currently active. */ |
124 | bool active; |
124 | bool active; |
125 | 125 | ||
126 | /** If true, we have timed out. */ |
126 | /** If true, we have timed out. */ |
127 | bool timedout; |
127 | bool timedout; |
128 | } awaiter_t; |
128 | } awaiter_t; |
129 | 129 | ||
130 | typedef struct { |
130 | typedef struct { |
131 | awaiter_t wdata; |
131 | awaiter_t wdata; |
132 | 132 | ||
133 | /** If reply was received. */ |
133 | /** If reply was received. */ |
134 | bool done; |
134 | bool done; |
135 | 135 | ||
136 | /** Pointer to where the answer data is stored. */ |
136 | /** Pointer to where the answer data is stored. */ |
137 | ipc_call_t *dataptr; |
137 | ipc_call_t *dataptr; |
138 | 138 | ||
139 | ipcarg_t retval; |
139 | ipcarg_t retval; |
140 | } amsg_t; |
140 | } amsg_t; |
141 | 141 | ||
142 | /** |
142 | /** |
143 | * Structures of this type are used to group information about a call and a |
143 | * Structures of this type are used to group information about a call and a |
144 | * message queue link. |
144 | * message queue link. |
145 | */ |
145 | */ |
146 | typedef struct { |
146 | typedef struct { |
147 | link_t link; |
147 | link_t link; |
148 | ipc_callid_t callid; |
148 | ipc_callid_t callid; |
149 | ipc_call_t call; |
149 | ipc_call_t call; |
150 | } msg_t; |
150 | } msg_t; |
151 | 151 | ||
152 | typedef struct { |
152 | typedef struct { |
153 | awaiter_t wdata; |
153 | awaiter_t wdata; |
154 | 154 | ||
155 | /** Hash table link. */ |
155 | /** Hash table link. */ |
156 | link_t link; |
156 | link_t link; |
157 | 157 | ||
158 | /** Incoming phone hash. */ |
158 | /** Incoming phone hash. */ |
159 | ipcarg_t in_phone_hash; |
159 | ipcarg_t in_phone_hash; |
160 | 160 | ||
161 | /** Messages that should be delivered to this fibril. */ |
161 | /** Messages that should be delivered to this fibril. */ |
162 | link_t msg_queue; |
162 | link_t msg_queue; |
163 | 163 | ||
164 | /** Identification of the opening call. */ |
164 | /** Identification of the opening call. */ |
165 | ipc_callid_t callid; |
165 | ipc_callid_t callid; |
166 | /** Call data of the opening call. */ |
166 | /** Call data of the opening call. */ |
167 | ipc_call_t call; |
167 | ipc_call_t call; |
168 | 168 | ||
169 | /** Identification of the closing call. */ |
169 | /** Identification of the closing call. */ |
170 | ipc_callid_t close_callid; |
170 | ipc_callid_t close_callid; |
171 | 171 | ||
172 | /** Fibril function that will be used to handle the connection. */ |
172 | /** Fibril function that will be used to handle the connection. */ |
173 | void (*cfibril)(ipc_callid_t, ipc_call_t *); |
173 | void (*cfibril)(ipc_callid_t, ipc_call_t *); |
174 | } connection_t; |
174 | } connection_t; |
175 | 175 | ||
176 | /** Identifier of the incoming connection handled by the current fibril. */ |
176 | /** Identifier of the incoming connection handled by the current fibril. */ |
177 | fibril_local connection_t *FIBRIL_connection; |
177 | fibril_local connection_t *FIBRIL_connection; |
178 | 178 | ||
179 | static void default_client_connection(ipc_callid_t callid, ipc_call_t *call); |
179 | static void default_client_connection(ipc_callid_t callid, ipc_call_t *call); |
180 | static void default_interrupt_received(ipc_callid_t callid, ipc_call_t *call); |
180 | static void default_interrupt_received(ipc_callid_t callid, ipc_call_t *call); |
181 | 181 | ||
182 | /** |
182 | /** |
183 | * Pointer to a fibril function that will be used to handle connections. |
183 | * Pointer to a fibril function that will be used to handle connections. |
184 | */ |
184 | */ |
185 | static async_client_conn_t client_connection = default_client_connection; |
185 | static async_client_conn_t client_connection = default_client_connection; |
186 | 186 | ||
187 | /** |
187 | /** |
188 | * Pointer to a fibril function that will be used to handle interrupt |
188 | * Pointer to a fibril function that will be used to handle interrupt |
189 | * notifications. |
189 | * notifications. |
190 | */ |
190 | */ |
191 | static async_client_conn_t interrupt_received = default_interrupt_received; |
191 | static async_client_conn_t interrupt_received = default_interrupt_received; |
192 | 192 | ||
193 | static hash_table_t conn_hash_table; |
193 | static hash_table_t conn_hash_table; |
194 | static LIST_INITIALIZE(timeout_list); |
194 | static LIST_INITIALIZE(timeout_list); |
195 | 195 | ||
196 | #define CONN_HASH_TABLE_CHAINS 32 |
196 | #define CONN_HASH_TABLE_CHAINS 32 |
197 | 197 | ||
198 | /** Compute hash into the connection hash table based on the source phone hash. |
198 | /** Compute hash into the connection hash table based on the source phone hash. |
199 | * |
199 | * |
200 | * @param key Pointer to source phone hash. |
200 | * @param key Pointer to source phone hash. |
201 | * |
201 | * |
202 | * @return Index into the connection hash table. |
202 | * @return Index into the connection hash table. |
203 | * |
203 | * |
204 | */ |
204 | */ |
205 | static hash_index_t conn_hash(unsigned long *key) |
205 | static hash_index_t conn_hash(unsigned long *key) |
206 | { |
206 | { |
207 | assert(key); |
207 | assert(key); |
208 | return (((*key) >> 4) % CONN_HASH_TABLE_CHAINS); |
208 | return (((*key) >> 4) % CONN_HASH_TABLE_CHAINS); |
209 | } |
209 | } |
210 | 210 | ||
211 | /** Compare hash table item with a key. |
211 | /** Compare hash table item with a key. |
212 | * |
212 | * |
213 | * @param key Array containing the source phone hash as the only item. |
213 | * @param key Array containing the source phone hash as the only item. |
214 | * @param keys Expected 1 but ignored. |
214 | * @param keys Expected 1 but ignored. |
215 | * @param item Connection hash table item. |
215 | * @param item Connection hash table item. |
216 | * |
216 | * |
217 | * @return True on match, false otherwise. |
217 | * @return True on match, false otherwise. |
218 | * |
218 | * |
219 | */ |
219 | */ |
220 | static int conn_compare(unsigned long key[], hash_count_t keys, link_t *item) |
220 | static int conn_compare(unsigned long key[], hash_count_t keys, link_t *item) |
221 | { |
221 | { |
222 | connection_t *hs = hash_table_get_instance(item, connection_t, link); |
222 | connection_t *hs = hash_table_get_instance(item, connection_t, link); |
223 | return (key[0] == hs->in_phone_hash); |
223 | return (key[0] == hs->in_phone_hash); |
224 | } |
224 | } |
225 | 225 | ||
226 | /** Connection hash table removal callback function. |
226 | /** Connection hash table removal callback function. |
227 | * |
227 | * |
228 | * This function is called whenever a connection is removed from the connection |
228 | * This function is called whenever a connection is removed from the connection |
229 | * hash table. |
229 | * hash table. |
230 | * |
230 | * |
231 | * @param item Connection hash table item being removed. |
231 | * @param item Connection hash table item being removed. |
232 | * |
232 | * |
233 | */ |
233 | */ |
234 | static void conn_remove(link_t *item) |
234 | static void conn_remove(link_t *item) |
235 | { |
235 | { |
236 | free(hash_table_get_instance(item, connection_t, link)); |
236 | free(hash_table_get_instance(item, connection_t, link)); |
237 | } |
237 | } |
238 | 238 | ||
239 | 239 | ||
240 | /** Operations for the connection hash table. */ |
240 | /** Operations for the connection hash table. */ |
241 | static hash_table_operations_t conn_hash_table_ops = { |
241 | static hash_table_operations_t conn_hash_table_ops = { |
242 | .hash = conn_hash, |
242 | .hash = conn_hash, |
243 | .compare = conn_compare, |
243 | .compare = conn_compare, |
244 | .remove_callback = conn_remove |
244 | .remove_callback = conn_remove |
245 | }; |
245 | }; |
246 | 246 | ||
247 | /** Sort in current fibril's timeout request. |
247 | /** Sort in current fibril's timeout request. |
248 | * |
248 | * |
249 | * @param wd Wait data of the current fibril. |
249 | * @param wd Wait data of the current fibril. |
250 | * |
250 | * |
251 | */ |
251 | */ |
252 | static void insert_timeout(awaiter_t *wd) |
252 | static void insert_timeout(awaiter_t *wd) |
253 | { |
253 | { |
254 | wd->timedout = false; |
254 | wd->timedout = false; |
255 | wd->inlist = true; |
255 | wd->inlist = true; |
256 | 256 | ||
257 | link_t *tmp = timeout_list.next; |
257 | link_t *tmp = timeout_list.next; |
258 | while (tmp != &timeout_list) { |
258 | while (tmp != &timeout_list) { |
259 | awaiter_t *cur = list_get_instance(tmp, awaiter_t, link); |
259 | awaiter_t *cur = list_get_instance(tmp, awaiter_t, link); |
260 | 260 | ||
261 | if (tv_gteq(&cur->expires, &wd->expires)) |
261 | if (tv_gteq(&cur->expires, &wd->expires)) |
262 | break; |
262 | break; |
263 | 263 | ||
264 | tmp = tmp->next; |
264 | tmp = tmp->next; |
265 | } |
265 | } |
266 | 266 | ||
267 | list_append(&wd->link, tmp); |
267 | list_append(&wd->link, tmp); |
268 | } |
268 | } |
269 | 269 | ||
270 | /** Try to route a call to an appropriate connection fibril. |
270 | /** Try to route a call to an appropriate connection fibril. |
271 | * |
271 | * |
272 | * If the proper connection fibril is found, a message with the call is added to |
272 | * If the proper connection fibril is found, a message with the call is added to |
273 | * its message queue. If the fibril was not active, it is activated and all |
273 | * its message queue. If the fibril was not active, it is activated and all |
274 | * timeouts are unregistered. |
274 | * timeouts are unregistered. |
275 | * |
275 | * |
276 | * @param callid Hash of the incoming call. |
276 | * @param callid Hash of the incoming call. |
277 | * @param call Data of the incoming call. |
277 | * @param call Data of the incoming call. |
278 | * |
278 | * |
279 | * @return False if the call doesn't match any connection. |
279 | * @return False if the call doesn't match any connection. |
280 | * True if the call was passed to the respective connection fibril. |
280 | * True if the call was passed to the respective connection fibril. |
281 | * |
281 | * |
282 | */ |
282 | */ |
283 | static bool route_call(ipc_callid_t callid, ipc_call_t *call) |
283 | static bool route_call(ipc_callid_t callid, ipc_call_t *call) |
284 | { |
284 | { |
285 | futex_down(&async_futex); |
285 | futex_down(&async_futex); |
286 | 286 | ||
287 | unsigned long key = call->in_phone_hash; |
287 | unsigned long key = call->in_phone_hash; |
288 | link_t *hlp = hash_table_find(&conn_hash_table, &key); |
288 | link_t *hlp = hash_table_find(&conn_hash_table, &key); |
289 | 289 | ||
290 | if (!hlp) { |
290 | if (!hlp) { |
291 | futex_up(&async_futex); |
291 | futex_up(&async_futex); |
292 | return false; |
292 | return false; |
293 | } |
293 | } |
294 | 294 | ||
295 | connection_t *conn = hash_table_get_instance(hlp, connection_t, link); |
295 | connection_t *conn = hash_table_get_instance(hlp, connection_t, link); |
296 | 296 | ||
297 | msg_t *msg = malloc(sizeof(*msg)); |
297 | msg_t *msg = malloc(sizeof(*msg)); |
298 | if (!msg) { |
298 | if (!msg) { |
299 | futex_up(&async_futex); |
299 | futex_up(&async_futex); |
300 | return false; |
300 | return false; |
301 | } |
301 | } |
302 | 302 | ||
303 | msg->callid = callid; |
303 | msg->callid = callid; |
304 | msg->call = *call; |
304 | msg->call = *call; |
305 | list_append(&msg->link, &conn->msg_queue); |
305 | list_append(&msg->link, &conn->msg_queue); |
306 | 306 | ||
307 | if (IPC_GET_METHOD(*call) == IPC_M_PHONE_HUNGUP) |
307 | if (IPC_GET_METHOD(*call) == IPC_M_PHONE_HUNGUP) |
308 | conn->close_callid = callid; |
308 | conn->close_callid = callid; |
309 | 309 | ||
310 | /* If the connection fibril is waiting for an event, activate it */ |
310 | /* If the connection fibril is waiting for an event, activate it */ |
311 | if (!conn->wdata.active) { |
311 | if (!conn->wdata.active) { |
312 | 312 | ||
313 | /* If in timeout list, remove it */ |
313 | /* If in timeout list, remove it */ |
314 | if (conn->wdata.inlist) { |
314 | if (conn->wdata.inlist) { |
315 | conn->wdata.inlist = false; |
315 | conn->wdata.inlist = false; |
316 | list_remove(&conn->wdata.link); |
316 | list_remove(&conn->wdata.link); |
317 | } |
317 | } |
318 | 318 | ||
319 | conn->wdata.active = true; |
319 | conn->wdata.active = true; |
320 | fibril_add_ready(conn->wdata.fid); |
320 | fibril_add_ready(conn->wdata.fid); |
321 | } |
321 | } |
322 | 322 | ||
323 | futex_up(&async_futex); |
323 | futex_up(&async_futex); |
324 | return true; |
324 | return true; |
325 | } |
325 | } |
326 | 326 | ||
327 | /** Notification fibril. |
327 | /** Notification fibril. |
328 | * |
328 | * |
329 | * When a notification arrives, a fibril with this implementing function is |
329 | * When a notification arrives, a fibril with this implementing function is |
330 | * created. It calls interrupt_received() and does the final cleanup. |
330 | * created. It calls interrupt_received() and does the final cleanup. |
331 | * |
331 | * |
332 | * @param arg Message structure pointer. |
332 | * @param arg Message structure pointer. |
333 | * |
333 | * |
334 | * @return Always zero. |
334 | * @return Always zero. |
335 | * |
335 | * |
336 | */ |
336 | */ |
337 | static int notification_fibril(void *arg) |
337 | static int notification_fibril(void *arg) |
338 | { |
338 | { |
339 | msg_t *msg = (msg_t *) arg; |
339 | msg_t *msg = (msg_t *) arg; |
340 | interrupt_received(msg->callid, &msg->call); |
340 | interrupt_received(msg->callid, &msg->call); |
341 | 341 | ||
342 | free(msg); |
342 | free(msg); |
343 | return 0; |
343 | return 0; |
344 | } |
344 | } |
345 | 345 | ||
346 | /** Process interrupt notification. |
346 | /** Process interrupt notification. |
347 | * |
347 | * |
348 | * A new fibril is created which would process the notification. |
348 | * A new fibril is created which would process the notification. |
349 | * |
349 | * |
350 | * @param callid Hash of the incoming call. |
350 | * @param callid Hash of the incoming call. |
351 | * @param call Data of the incoming call. |
351 | * @param call Data of the incoming call. |
352 | * |
352 | * |
353 | * @return False if an error occured. |
353 | * @return False if an error occured. |
354 | * True if the call was passed to the notification fibril. |
354 | * True if the call was passed to the notification fibril. |
355 | * |
355 | * |
356 | */ |
356 | */ |
357 | static bool process_notification(ipc_callid_t callid, ipc_call_t *call) |
357 | static bool process_notification(ipc_callid_t callid, ipc_call_t *call) |
358 | { |
358 | { |
359 | futex_down(&async_futex); |
359 | futex_down(&async_futex); |
360 | 360 | ||
361 | msg_t *msg = malloc(sizeof(*msg)); |
361 | msg_t *msg = malloc(sizeof(*msg)); |
362 | if (!msg) { |
362 | if (!msg) { |
363 | futex_up(&async_futex); |
363 | futex_up(&async_futex); |
364 | return false; |
364 | return false; |
365 | } |
365 | } |
366 | 366 | ||
367 | msg->callid = callid; |
367 | msg->callid = callid; |
368 | msg->call = *call; |
368 | msg->call = *call; |
369 | 369 | ||
370 | fid_t fid = fibril_create(notification_fibril, msg); |
370 | fid_t fid = fibril_create(notification_fibril, msg); |
371 | fibril_add_ready(fid); |
371 | fibril_add_ready(fid); |
372 | 372 | ||
373 | futex_up(&async_futex); |
373 | futex_up(&async_futex); |
374 | return true; |
374 | return true; |
375 | } |
375 | } |
376 | 376 | ||
377 | /** Return new incoming message for the current (fibril-local) connection. |
377 | /** Return new incoming message for the current (fibril-local) connection. |
378 | * |
378 | * |
379 | * @param call Storage where the incoming call data will be stored. |
379 | * @param call Storage where the incoming call data will be stored. |
380 | * @param usecs Timeout in microseconds. Zero denotes no timeout. |
380 | * @param usecs Timeout in microseconds. Zero denotes no timeout. |
381 | * |
381 | * |
382 | * @return If no timeout was specified, then a hash of the |
382 | * @return If no timeout was specified, then a hash of the |
383 | * incoming call is returned. If a timeout is specified, |
383 | * incoming call is returned. If a timeout is specified, |
384 | * then a hash of the incoming call is returned unless |
384 | * then a hash of the incoming call is returned unless |
385 | * the timeout expires prior to receiving a message. In |
385 | * the timeout expires prior to receiving a message. In |
386 | * that case zero is returned. |
386 | * that case zero is returned. |
387 | * |
387 | * |
388 | */ |
388 | */ |
389 | ipc_callid_t async_get_call_timeout(ipc_call_t *call, suseconds_t usecs) |
389 | ipc_callid_t async_get_call_timeout(ipc_call_t *call, suseconds_t usecs) |
390 | { |
390 | { |
391 | assert(FIBRIL_connection); |
391 | assert(FIBRIL_connection); |
392 | 392 | ||
393 | /* Why doing this? |
393 | /* Why doing this? |
394 | * GCC 4.1.0 coughs on FIBRIL_connection-> dereference. |
394 | * GCC 4.1.0 coughs on FIBRIL_connection-> dereference. |
395 | * GCC 4.1.1 happilly puts the rdhwr instruction in delay slot. |
395 | * GCC 4.1.1 happilly puts the rdhwr instruction in delay slot. |
396 | * I would never expect to find so many errors in |
396 | * I would never expect to find so many errors in |
397 | * a compiler. |
397 | * a compiler. |
398 | */ |
398 | */ |
399 | connection_t *conn = FIBRIL_connection; |
399 | connection_t *conn = FIBRIL_connection; |
400 | 400 | ||
401 | futex_down(&async_futex); |
401 | futex_down(&async_futex); |
402 | 402 | ||
403 | if (usecs) { |
403 | if (usecs) { |
404 | gettimeofday(&conn->wdata.expires, NULL); |
404 | gettimeofday(&conn->wdata.expires, NULL); |
405 | tv_add(&conn->wdata.expires, usecs); |
405 | tv_add(&conn->wdata.expires, usecs); |
406 | } else |
406 | } else |
407 | conn->wdata.inlist = false; |
407 | conn->wdata.inlist = false; |
408 | 408 | ||
409 | /* If nothing in queue, wait until something arrives */ |
409 | /* If nothing in queue, wait until something arrives */ |
410 | while (list_empty(&conn->msg_queue)) { |
410 | while (list_empty(&conn->msg_queue)) { |
411 | if (usecs) |
411 | if (usecs) |
412 | insert_timeout(&conn->wdata); |
412 | insert_timeout(&conn->wdata); |
413 | 413 | ||
414 | conn->wdata.active = false; |
414 | conn->wdata.active = false; |
415 | 415 | ||
416 | /* |
416 | /* |
417 | * Note: the current fibril will be rescheduled either due to a |
417 | * Note: the current fibril will be rescheduled either due to a |
418 | * timeout or due to an arriving message destined to it. In the |
418 | * timeout or due to an arriving message destined to it. In the |
419 | * former case, handle_expired_timeouts() and, in the latter |
419 | * former case, handle_expired_timeouts() and, in the latter |
420 | * case, route_call() will perform the wakeup. |
420 | * case, route_call() will perform the wakeup. |
421 | */ |
421 | */ |
422 | fibril_switch(FIBRIL_TO_MANAGER); |
422 | fibril_switch(FIBRIL_TO_MANAGER); |
423 | 423 | ||
424 | /* |
424 | /* |
425 | * Futex is up after getting back from async_manager. |
425 | * Futex is up after getting back from async_manager. |
426 | * Get it again. |
426 | * Get it again. |
427 | */ |
427 | */ |
428 | futex_down(&async_futex); |
428 | futex_down(&async_futex); |
429 | if ((usecs) && (conn->wdata.timedout) |
429 | if ((usecs) && (conn->wdata.timedout) |
430 | && (list_empty(&conn->msg_queue))) { |
430 | && (list_empty(&conn->msg_queue))) { |
431 | /* If we timed out -> exit */ |
431 | /* If we timed out -> exit */ |
432 | futex_up(&async_futex); |
432 | futex_up(&async_futex); |
433 | return 0; |
433 | return 0; |
434 | } |
434 | } |
435 | } |
435 | } |
436 | 436 | ||
437 | msg_t *msg = list_get_instance(conn->msg_queue.next, msg_t, link); |
437 | msg_t *msg = list_get_instance(conn->msg_queue.next, msg_t, link); |
438 | list_remove(&msg->link); |
438 | list_remove(&msg->link); |
439 | 439 | ||
440 | ipc_callid_t callid = msg->callid; |
440 | ipc_callid_t callid = msg->callid; |
441 | *call = msg->call; |
441 | *call = msg->call; |
442 | free(msg); |
442 | free(msg); |
443 | 443 | ||
444 | futex_up(&async_futex); |
444 | futex_up(&async_futex); |
445 | return callid; |
445 | return callid; |
446 | } |
446 | } |
447 | 447 | ||
448 | /** Default fibril function that gets called to handle new connection. |
448 | /** Default fibril function that gets called to handle new connection. |
449 | * |
449 | * |
450 | * This function is defined as a weak symbol - to be redefined in user code. |
450 | * This function is defined as a weak symbol - to be redefined in user code. |
451 | * |
451 | * |
452 | * @param callid Hash of the incoming call. |
452 | * @param callid Hash of the incoming call. |
453 | * @param call Data of the incoming call. |
453 | * @param call Data of the incoming call. |
454 | * |
454 | * |
455 | */ |
455 | */ |
456 | static void default_client_connection(ipc_callid_t callid, ipc_call_t *call) |
456 | static void default_client_connection(ipc_callid_t callid, ipc_call_t *call) |
457 | { |
457 | { |
458 | ipc_answer_0(callid, ENOENT); |
458 | ipc_answer_0(callid, ENOENT); |
459 | } |
459 | } |
460 | 460 | ||
461 | /** Default fibril function that gets called to handle interrupt notifications. |
461 | /** Default fibril function that gets called to handle interrupt notifications. |
462 | * |
462 | * |
463 | * This function is defined as a weak symbol - to be redefined in user code. |
463 | * This function is defined as a weak symbol - to be redefined in user code. |
464 | * |
464 | * |
465 | * @param callid Hash of the incoming call. |
465 | * @param callid Hash of the incoming call. |
466 | * @param call Data of the incoming call. |
466 | * @param call Data of the incoming call. |
467 | * |
467 | * |
468 | */ |
468 | */ |
469 | static void default_interrupt_received(ipc_callid_t callid, ipc_call_t *call) |
469 | static void default_interrupt_received(ipc_callid_t callid, ipc_call_t *call) |
470 | { |
470 | { |
471 | } |
471 | } |
472 | 472 | ||
473 | /** Wrapper for client connection fibril. |
473 | /** Wrapper for client connection fibril. |
474 | * |
474 | * |
475 | * When a new connection arrives, a fibril with this implementing function is |
475 | * When a new connection arrives, a fibril with this implementing function is |
476 | * created. It calls client_connection() and does the final cleanup. |
476 | * created. It calls client_connection() and does the final cleanup. |
477 | * |
477 | * |
478 | * @param arg Connection structure pointer. |
478 | * @param arg Connection structure pointer. |
479 | * |
479 | * |
480 | * @return Always zero. |
480 | * @return Always zero. |
481 | * |
481 | * |
482 | */ |
482 | */ |
483 | static int connection_fibril(void *arg) |
483 | static int connection_fibril(void *arg) |
484 | { |
484 | { |
485 | /* |
485 | /* |
486 | * Setup fibril-local connection pointer and call client_connection(). |
486 | * Setup fibril-local connection pointer and call client_connection(). |
487 | * |
487 | * |
488 | */ |
488 | */ |
489 | FIBRIL_connection = (connection_t *) arg; |
489 | FIBRIL_connection = (connection_t *) arg; |
490 | FIBRIL_connection->cfibril(FIBRIL_connection->callid, |
490 | FIBRIL_connection->cfibril(FIBRIL_connection->callid, |
491 | &FIBRIL_connection->call); |
491 | &FIBRIL_connection->call); |
492 | 492 | ||
493 | /* Remove myself from the connection hash table */ |
493 | /* Remove myself from the connection hash table */ |
494 | futex_down(&async_futex); |
494 | futex_down(&async_futex); |
495 | unsigned long key = FIBRIL_connection->in_phone_hash; |
495 | unsigned long key = FIBRIL_connection->in_phone_hash; |
496 | hash_table_remove(&conn_hash_table, &key, 1); |
496 | hash_table_remove(&conn_hash_table, &key, 1); |
497 | futex_up(&async_futex); |
497 | futex_up(&async_futex); |
498 | 498 | ||
499 | /* Answer all remaining messages with EHANGUP */ |
499 | /* Answer all remaining messages with EHANGUP */ |
500 | while (!list_empty(&FIBRIL_connection->msg_queue)) { |
500 | while (!list_empty(&FIBRIL_connection->msg_queue)) { |
501 | msg_t *msg; |
501 | msg_t *msg; |
502 | 502 | ||
503 | msg = list_get_instance(FIBRIL_connection->msg_queue.next, |
503 | msg = list_get_instance(FIBRIL_connection->msg_queue.next, |
504 | msg_t, link); |
504 | msg_t, link); |
505 | list_remove(&msg->link); |
505 | list_remove(&msg->link); |
506 | ipc_answer_0(msg->callid, EHANGUP); |
506 | ipc_answer_0(msg->callid, EHANGUP); |
507 | free(msg); |
507 | free(msg); |
508 | } |
508 | } |
509 | 509 | ||
510 | if (FIBRIL_connection->close_callid) |
510 | if (FIBRIL_connection->close_callid) |
511 | ipc_answer_0(FIBRIL_connection->close_callid, EOK); |
511 | ipc_answer_0(FIBRIL_connection->close_callid, EOK); |
512 | 512 | ||
513 | return 0; |
513 | return 0; |
514 | } |
514 | } |
515 | 515 | ||
516 | /** Create a new fibril for a new connection. |
516 | /** Create a new fibril for a new connection. |
517 | * |
517 | * |
518 | * Create new fibril for connection, fill in connection structures and inserts |
518 | * Create new fibril for connection, fill in connection structures and inserts |
519 | * it into the hash table, so that later we can easily do routing of messages to |
519 | * it into the hash table, so that later we can easily do routing of messages to |
520 | * particular fibrils. |
520 | * particular fibrils. |
521 | * |
521 | * |
522 | * @param in_phone_hash Identification of the incoming connection. |
522 | * @param in_phone_hash Identification of the incoming connection. |
523 | * @param callid Hash of the opening IPC_M_CONNECT_ME_TO call. |
523 | * @param callid Hash of the opening IPC_M_CONNECT_ME_TO call. |
524 | * If callid is zero, the connection was opened by |
524 | * If callid is zero, the connection was opened by |
525 | * accepting the IPC_M_CONNECT_TO_ME call and this function |
525 | * accepting the IPC_M_CONNECT_TO_ME call and this function |
526 | * is called directly by the server. |
526 | * is called directly by the server. |
527 | * @param call Call data of the opening call. |
527 | * @param call Call data of the opening call. |
528 | * @param cfibril Fibril function that should be called upon opening the |
528 | * @param cfibril Fibril function that should be called upon opening the |
529 | * connection. |
529 | * connection. |
530 | * |
530 | * |
531 | * @return New fibril id or NULL on failure. |
531 | * @return New fibril id or NULL on failure. |
532 | * |
532 | * |
533 | */ |
533 | */ |
534 | fid_t async_new_connection(ipcarg_t in_phone_hash, ipc_callid_t callid, |
534 | fid_t async_new_connection(ipcarg_t in_phone_hash, ipc_callid_t callid, |
535 | ipc_call_t *call, void (*cfibril)(ipc_callid_t, ipc_call_t *)) |
535 | ipc_call_t *call, void (*cfibril)(ipc_callid_t, ipc_call_t *)) |
536 | { |
536 | { |
537 | connection_t *conn = malloc(sizeof(*conn)); |
537 | connection_t *conn = malloc(sizeof(*conn)); |
538 | if (!conn) { |
538 | if (!conn) { |
539 | if (callid) |
539 | if (callid) |
540 | ipc_answer_0(callid, ENOMEM); |
540 | ipc_answer_0(callid, ENOMEM); |
541 | return NULL; |
541 | return NULL; |
542 | } |
542 | } |
543 | 543 | ||
544 | conn->in_phone_hash = in_phone_hash; |
544 | conn->in_phone_hash = in_phone_hash; |
545 | list_initialize(&conn->msg_queue); |
545 | list_initialize(&conn->msg_queue); |
546 | conn->callid = callid; |
546 | conn->callid = callid; |
547 | conn->close_callid = false; |
547 | conn->close_callid = false; |
548 | 548 | ||
549 | if (call) |
549 | if (call) |
550 | conn->call = *call; |
550 | conn->call = *call; |
551 | 551 | ||
552 | /* We will activate the fibril ASAP */ |
552 | /* We will activate the fibril ASAP */ |
553 | conn->wdata.active = true; |
553 | conn->wdata.active = true; |
554 | conn->cfibril = cfibril; |
554 | conn->cfibril = cfibril; |
555 | conn->wdata.fid = fibril_create(connection_fibril, conn); |
555 | conn->wdata.fid = fibril_create(connection_fibril, conn); |
556 | 556 | ||
557 | if (!conn->wdata.fid) { |
557 | if (!conn->wdata.fid) { |
558 | free(conn); |
558 | free(conn); |
559 | if (callid) |
559 | if (callid) |
560 | ipc_answer_0(callid, ENOMEM); |
560 | ipc_answer_0(callid, ENOMEM); |
561 | return NULL; |
561 | return NULL; |
562 | } |
562 | } |
563 | 563 | ||
564 | /* Add connection to the connection hash table */ |
564 | /* Add connection to the connection hash table */ |
565 | unsigned long key = conn->in_phone_hash; |
565 | unsigned long key = conn->in_phone_hash; |
566 | 566 | ||
567 | futex_down(&async_futex); |
567 | futex_down(&async_futex); |
568 | hash_table_insert(&conn_hash_table, &key, &conn->link); |
568 | hash_table_insert(&conn_hash_table, &key, &conn->link); |
569 | futex_up(&async_futex); |
569 | futex_up(&async_futex); |
570 | 570 | ||
571 | fibril_add_ready(conn->wdata.fid); |
571 | fibril_add_ready(conn->wdata.fid); |
572 | 572 | ||
573 | return conn->wdata.fid; |
573 | return conn->wdata.fid; |
574 | } |
574 | } |
575 | 575 | ||
576 | /** Handle a call that was received. |
576 | /** Handle a call that was received. |
577 | * |
577 | * |
578 | * If the call has the IPC_M_CONNECT_ME_TO method, a new connection is created. |
578 | * If the call has the IPC_M_CONNECT_ME_TO method, a new connection is created. |
579 | * Otherwise the call is routed to its connection fibril. |
579 | * Otherwise the call is routed to its connection fibril. |
580 | * |
580 | * |
581 | * @param callid Hash of the incoming call. |
581 | * @param callid Hash of the incoming call. |
582 | * @param call Data of the incoming call. |
582 | * @param call Data of the incoming call. |
583 | * |
583 | * |
584 | */ |
584 | */ |
585 | static void handle_call(ipc_callid_t callid, ipc_call_t *call) |
585 | static void handle_call(ipc_callid_t callid, ipc_call_t *call) |
586 | { |
586 | { |
587 | /* Unrouted call - do some default behaviour */ |
587 | /* Unrouted call - do some default behaviour */ |
588 | if ((callid & IPC_CALLID_NOTIFICATION)) { |
588 | if ((callid & IPC_CALLID_NOTIFICATION)) { |
589 | process_notification(callid, call); |
589 | process_notification(callid, call); |
590 | goto out; |
590 | goto out; |
591 | } |
591 | } |
592 | 592 | ||
593 | switch (IPC_GET_METHOD(*call)) { |
593 | switch (IPC_GET_METHOD(*call)) { |
594 | case IPC_M_CONNECT_ME: |
594 | case IPC_M_CONNECT_ME: |
595 | case IPC_M_CONNECT_ME_TO: |
595 | case IPC_M_CONNECT_ME_TO: |
596 | /* Open new connection with fibril etc. */ |
596 | /* Open new connection with fibril etc. */ |
597 | async_new_connection(IPC_GET_ARG5(*call), callid, call, |
597 | async_new_connection(IPC_GET_ARG5(*call), callid, call, |
598 | client_connection); |
598 | client_connection); |
599 | goto out; |
599 | goto out; |
600 | } |
600 | } |
601 | 601 | ||
602 | /* Try to route the call through the connection hash table */ |
602 | /* Try to route the call through the connection hash table */ |
603 | if (route_call(callid, call)) |
603 | if (route_call(callid, call)) |
604 | goto out; |
604 | goto out; |
605 | 605 | ||
606 | /* Unknown call from unknown phone - hang it up */ |
606 | /* Unknown call from unknown phone - hang it up */ |
607 | ipc_answer_0(callid, EHANGUP); |
607 | ipc_answer_0(callid, EHANGUP); |
608 | return; |
608 | return; |
609 | 609 | ||
610 | out: |
610 | out: |
611 | ; |
611 | ; |
612 | } |
612 | } |
613 | 613 | ||
614 | /** Fire all timeouts that expired. */ |
614 | /** Fire all timeouts that expired. */ |
615 | static void handle_expired_timeouts(void) |
615 | static void handle_expired_timeouts(void) |
616 | { |
616 | { |
617 | struct timeval tv; |
617 | struct timeval tv; |
618 | gettimeofday(&tv, NULL); |
618 | gettimeofday(&tv, NULL); |
619 | 619 | ||
620 | futex_down(&async_futex); |
620 | futex_down(&async_futex); |
621 | 621 | ||
622 | link_t *cur = timeout_list.next; |
622 | link_t *cur = timeout_list.next; |
623 | while (cur != &timeout_list) { |
623 | while (cur != &timeout_list) { |
624 | awaiter_t *waiter = list_get_instance(cur, awaiter_t, link); |
624 | awaiter_t *waiter = list_get_instance(cur, awaiter_t, link); |
625 | 625 | ||
626 | if (tv_gt(&waiter->expires, &tv)) |
626 | if (tv_gt(&waiter->expires, &tv)) |
627 | break; |
627 | break; |
628 | 628 | ||
629 | cur = cur->next; |
629 | cur = cur->next; |
630 | 630 | ||
631 | list_remove(&waiter->link); |
631 | list_remove(&waiter->link); |
632 | waiter->inlist = false; |
632 | waiter->inlist = false; |
633 | waiter->timedout = true; |
633 | waiter->timedout = true; |
634 | 634 | ||
635 | /* |
635 | /* |
636 | * Redundant condition? |
636 | * Redundant condition? |
637 | * The fibril should not be active when it gets here. |
637 | * The fibril should not be active when it gets here. |
638 | */ |
638 | */ |
639 | if (!waiter->active) { |
639 | if (!waiter->active) { |
640 | waiter->active = true; |
640 | waiter->active = true; |
641 | fibril_add_ready(waiter->fid); |
641 | fibril_add_ready(waiter->fid); |
642 | } |
642 | } |
643 | } |
643 | } |
644 | 644 | ||
645 | futex_up(&async_futex); |
645 | futex_up(&async_futex); |
646 | } |
646 | } |
647 | 647 | ||
648 | /** Endless loop dispatching incoming calls and answers. |
648 | /** Endless loop dispatching incoming calls and answers. |
649 | * |
649 | * |
650 | * @return Never returns. |
650 | * @return Never returns. |
651 | * |
651 | * |
652 | */ |
652 | */ |
653 | static int async_manager_worker(void) |
653 | static int async_manager_worker(void) |
654 | { |
654 | { |
655 | while (true) { |
655 | while (true) { |
656 | if (fibril_switch(FIBRIL_FROM_MANAGER)) { |
656 | if (fibril_switch(FIBRIL_FROM_MANAGER)) { |
657 | futex_up(&async_futex); |
657 | futex_up(&async_futex); |
658 | /* |
658 | /* |
659 | * async_futex is always held when entering a manager |
659 | * async_futex is always held when entering a manager |
660 | * fibril. |
660 | * fibril. |
661 | */ |
661 | */ |
662 | continue; |
662 | continue; |
663 | } |
663 | } |
664 | 664 | ||
665 | futex_down(&async_futex); |
665 | futex_down(&async_futex); |
666 | 666 | ||
667 | suseconds_t timeout; |
667 | suseconds_t timeout; |
668 | if (!list_empty(&timeout_list)) { |
668 | if (!list_empty(&timeout_list)) { |
669 | awaiter_t *waiter = list_get_instance(timeout_list.next, |
669 | awaiter_t *waiter = list_get_instance(timeout_list.next, |
670 | awaiter_t, link); |
670 | awaiter_t, link); |
671 | 671 | ||
672 | struct timeval tv; |
672 | struct timeval tv; |
673 | gettimeofday(&tv, NULL); |
673 | gettimeofday(&tv, NULL); |
674 | 674 | ||
675 | if (tv_gteq(&tv, &waiter->expires)) { |
675 | if (tv_gteq(&tv, &waiter->expires)) { |
676 | futex_up(&async_futex); |
676 | futex_up(&async_futex); |
677 | handle_expired_timeouts(); |
677 | handle_expired_timeouts(); |
678 | continue; |
678 | continue; |
679 | } else |
679 | } else |
680 | timeout = tv_sub(&waiter->expires, &tv); |
680 | timeout = tv_sub(&waiter->expires, &tv); |
681 | } else |
681 | } else |
682 | timeout = SYNCH_NO_TIMEOUT; |
682 | timeout = SYNCH_NO_TIMEOUT; |
683 | 683 | ||
684 | futex_up(&async_futex); |
684 | futex_up(&async_futex); |
685 | 685 | ||
686 | ipc_call_t call; |
686 | ipc_call_t call; |
687 | ipc_callid_t callid = ipc_wait_cycle(&call, timeout, |
687 | ipc_callid_t callid = ipc_wait_cycle(&call, timeout, |
688 | SYNCH_FLAGS_NONE); |
688 | SYNCH_FLAGS_NONE); |
689 | 689 | ||
690 | if (!callid) { |
690 | if (!callid) { |
691 | handle_expired_timeouts(); |
691 | handle_expired_timeouts(); |
692 | continue; |
692 | continue; |
693 | } |
693 | } |
694 | 694 | ||
695 | if (callid & IPC_CALLID_ANSWERED) |
695 | if (callid & IPC_CALLID_ANSWERED) |
696 | continue; |
696 | continue; |
697 | 697 | ||
698 | handle_call(callid, &call); |
698 | handle_call(callid, &call); |
699 | } |
699 | } |
700 | 700 | ||
701 | return 0; |
701 | return 0; |
702 | } |
702 | } |
703 | 703 | ||
704 | /** Function to start async_manager as a standalone fibril. |
704 | /** Function to start async_manager as a standalone fibril. |
705 | * |
705 | * |
706 | * When more kernel threads are used, one async manager should exist per thread. |
706 | * When more kernel threads are used, one async manager should exist per thread. |
707 | * |
707 | * |
708 | * @param arg Unused. |
708 | * @param arg Unused. |
709 | * @return Never returns. |
709 | * @return Never returns. |
710 | * |
710 | * |
711 | */ |
711 | */ |
712 | static int async_manager_fibril(void *arg) |
712 | static int async_manager_fibril(void *arg) |
713 | { |
713 | { |
714 | futex_up(&async_futex); |
714 | futex_up(&async_futex); |
715 | 715 | ||
716 | /* |
716 | /* |
717 | * async_futex is always locked when entering manager |
717 | * async_futex is always locked when entering manager |
718 | */ |
718 | */ |
719 | async_manager_worker(); |
719 | async_manager_worker(); |
720 | 720 | ||
721 | return 0; |
721 | return 0; |
722 | } |
722 | } |
723 | 723 | ||
724 | /** Add one manager to manager list. */ |
724 | /** Add one manager to manager list. */ |
725 | void async_create_manager(void) |
725 | void async_create_manager(void) |
726 | { |
726 | { |
727 | fid_t fid = fibril_create(async_manager_fibril, NULL); |
727 | fid_t fid = fibril_create(async_manager_fibril, NULL); |
728 | fibril_add_manager(fid); |
728 | fibril_add_manager(fid); |
729 | } |
729 | } |
730 | 730 | ||
731 | /** Remove one manager from manager list */ |
731 | /** Remove one manager from manager list */ |
732 | void async_destroy_manager(void) |
732 | void async_destroy_manager(void) |
733 | { |
733 | { |
734 | fibril_remove_manager(); |
734 | fibril_remove_manager(); |
735 | } |
735 | } |
736 | 736 | ||
737 | /** Initialize the async framework. |
737 | /** Initialize the async framework. |
738 | * |
738 | * |
739 | * @return Zero on success or an error code. |
739 | * @return Zero on success or an error code. |
740 | */ |
740 | */ |
741 | int __async_init(void) |
741 | int __async_init(void) |
742 | { |
742 | { |
743 | if (!hash_table_create(&conn_hash_table, CONN_HASH_TABLE_CHAINS, 1, |
743 | if (!hash_table_create(&conn_hash_table, CONN_HASH_TABLE_CHAINS, 1, |
744 | &conn_hash_table_ops)) { |
744 | &conn_hash_table_ops)) { |
745 | printf("%s: cannot create hash table\n", "async"); |
745 | printf("%s: cannot create hash table\n", "async"); |
746 | return ENOMEM; |
746 | return ENOMEM; |
747 | } |
747 | } |
748 | 748 | ||
749 | return 0; |
749 | return 0; |
750 | } |
750 | } |
751 | 751 | ||
752 | /** Reply received callback. |
752 | /** Reply received callback. |
753 | * |
753 | * |
754 | * This function is called whenever a reply for an asynchronous message sent out |
754 | * This function is called whenever a reply for an asynchronous message sent out |
755 | * by the asynchronous framework is received. |
755 | * by the asynchronous framework is received. |
756 | * |
756 | * |
757 | * Notify the fibril which is waiting for this message that it has arrived. |
757 | * Notify the fibril which is waiting for this message that it has arrived. |
758 | * |
758 | * |
759 | * @param arg Pointer to the asynchronous message record. |
759 | * @param arg Pointer to the asynchronous message record. |
760 | * @param retval Value returned in the answer. |
760 | * @param retval Value returned in the answer. |
761 | * @param data Call data of the answer. |
761 | * @param data Call data of the answer. |
762 | */ |
762 | */ |
763 | static void reply_received(void *arg, int retval, ipc_call_t *data) |
763 | static void reply_received(void *arg, int retval, ipc_call_t *data) |
764 | { |
764 | { |
765 | futex_down(&async_futex); |
765 | futex_down(&async_futex); |
766 | 766 | ||
767 | amsg_t *msg = (amsg_t *) arg; |
767 | amsg_t *msg = (amsg_t *) arg; |
768 | msg->retval = retval; |
768 | msg->retval = retval; |
769 | 769 | ||
770 | /* Copy data after futex_down, just in case the call was detached */ |
770 | /* Copy data after futex_down, just in case the call was detached */ |
771 | if ((msg->dataptr) && (data)) |
771 | if ((msg->dataptr) && (data)) |
772 | *msg->dataptr = *data; |
772 | *msg->dataptr = *data; |
773 | 773 | ||
774 | write_barrier(); |
774 | write_barrier(); |
775 | 775 | ||
776 | /* Remove message from timeout list */ |
776 | /* Remove message from timeout list */ |
777 | if (msg->wdata.inlist) |
777 | if (msg->wdata.inlist) |
778 | list_remove(&msg->wdata.link); |
778 | list_remove(&msg->wdata.link); |
779 | 779 | ||
780 | msg->done = true; |
780 | msg->done = true; |
781 | if (!msg->wdata.active) { |
781 | if (!msg->wdata.active) { |
782 | msg->wdata.active = true; |
782 | msg->wdata.active = true; |
783 | fibril_add_ready(msg->wdata.fid); |
783 | fibril_add_ready(msg->wdata.fid); |
784 | } |
784 | } |
785 | 785 | ||
786 | futex_up(&async_futex); |
786 | futex_up(&async_futex); |
787 | } |
787 | } |
788 | 788 | ||
789 | /** Send message and return id of the sent message. |
789 | /** Send message and return id of the sent message. |
790 | * |
790 | * |
791 | * The return value can be used as input for async_wait() to wait for |
791 | * The return value can be used as input for async_wait() to wait for |
792 | * completion. |
792 | * completion. |
793 | * |
793 | * |
794 | * @param phoneid Handle of the phone that will be used for the send. |
794 | * @param phoneid Handle of the phone that will be used for the send. |
795 | * @param method Service-defined method. |
795 | * @param method Service-defined method. |
796 | * @param arg1 Service-defined payload argument. |
796 | * @param arg1 Service-defined payload argument. |
797 | * @param arg2 Service-defined payload argument. |
797 | * @param arg2 Service-defined payload argument. |
798 | * @param arg3 Service-defined payload argument. |
798 | * @param arg3 Service-defined payload argument. |
799 | * @param arg4 Service-defined payload argument. |
799 | * @param arg4 Service-defined payload argument. |
800 | * @param dataptr If non-NULL, storage where the reply data will be |
800 | * @param dataptr If non-NULL, storage where the reply data will be |
801 | * stored. |
801 | * stored. |
802 | * |
802 | * |
803 | * @return Hash of the sent message or 0 on error. |
803 | * @return Hash of the sent message or 0 on error. |
804 | * |
804 | * |
805 | */ |
805 | */ |
806 | aid_t async_send_fast(int phoneid, ipcarg_t method, ipcarg_t arg1, |
806 | aid_t async_send_fast(int phoneid, ipcarg_t method, ipcarg_t arg1, |
807 | ipcarg_t arg2, ipcarg_t arg3, ipcarg_t arg4, ipc_call_t *dataptr) |
807 | ipcarg_t arg2, ipcarg_t arg3, ipcarg_t arg4, ipc_call_t *dataptr) |
808 | { |
808 | { |
809 | amsg_t *msg = malloc(sizeof(*msg)); |
809 | amsg_t *msg = malloc(sizeof(*msg)); |
810 | 810 | ||
811 | if (!msg) |
811 | if (!msg) |
812 | return 0; |
812 | return 0; |
813 | 813 | ||
814 | msg->done = false; |
814 | msg->done = false; |
815 | msg->dataptr = dataptr; |
815 | msg->dataptr = dataptr; |
816 | 816 | ||
817 | msg->wdata.inlist = false; |
817 | msg->wdata.inlist = false; |
818 | /* We may sleep in the next method, but it will use its own mechanism */ |
818 | /* We may sleep in the next method, but it will use its own mechanism */ |
819 | msg->wdata.active = true; |
819 | msg->wdata.active = true; |
820 | 820 | ||
821 | ipc_call_async_4(phoneid, method, arg1, arg2, arg3, arg4, msg, |
821 | ipc_call_async_4(phoneid, method, arg1, arg2, arg3, arg4, msg, |
822 | reply_received, true); |
822 | reply_received, true); |
823 | 823 | ||
824 | return (aid_t) msg; |
824 | return (aid_t) msg; |
825 | } |
825 | } |
826 | 826 | ||
827 | /** Send message and return id of the sent message |
827 | /** Send message and return id of the sent message |
828 | * |
828 | * |
829 | * The return value can be used as input for async_wait() to wait for |
829 | * The return value can be used as input for async_wait() to wait for |
830 | * completion. |
830 | * completion. |
831 | * |
831 | * |
832 | * @param phoneid Handle of the phone that will be used for the send. |
832 | * @param phoneid Handle of the phone that will be used for the send. |
833 | * @param method Service-defined method. |
833 | * @param method Service-defined method. |
834 | * @param arg1 Service-defined payload argument. |
834 | * @param arg1 Service-defined payload argument. |
835 | * @param arg2 Service-defined payload argument. |
835 | * @param arg2 Service-defined payload argument. |
836 | * @param arg3 Service-defined payload argument. |
836 | * @param arg3 Service-defined payload argument. |
837 | * @param arg4 Service-defined payload argument. |
837 | * @param arg4 Service-defined payload argument. |
838 | * @param arg5 Service-defined payload argument. |
838 | * @param arg5 Service-defined payload argument. |
839 | * @param dataptr If non-NULL, storage where the reply data will be |
839 | * @param dataptr If non-NULL, storage where the reply data will be |
840 | * stored. |
840 | * stored. |
841 | * |
841 | * |
842 | * @return Hash of the sent message or 0 on error. |
842 | * @return Hash of the sent message or 0 on error. |
843 | * |
843 | * |
844 | */ |
844 | */ |
845 | aid_t async_send_slow(int phoneid, ipcarg_t method, ipcarg_t arg1, |
845 | aid_t async_send_slow(int phoneid, ipcarg_t method, ipcarg_t arg1, |
846 | ipcarg_t arg2, ipcarg_t arg3, ipcarg_t arg4, ipcarg_t arg5, |
846 | ipcarg_t arg2, ipcarg_t arg3, ipcarg_t arg4, ipcarg_t arg5, |
847 | ipc_call_t *dataptr) |
847 | ipc_call_t *dataptr) |
848 | { |
848 | { |
849 | amsg_t *msg = malloc(sizeof(*msg)); |
849 | amsg_t *msg = malloc(sizeof(*msg)); |
850 | 850 | ||
851 | if (!msg) |
851 | if (!msg) |
852 | return 0; |
852 | return 0; |
853 | 853 | ||
854 | msg->done = false; |
854 | msg->done = false; |
855 | msg->dataptr = dataptr; |
855 | msg->dataptr = dataptr; |
856 | 856 | ||
857 | msg->wdata.inlist = false; |
857 | msg->wdata.inlist = false; |
858 | /* We may sleep in next method, but it will use its own mechanism */ |
858 | /* We may sleep in next method, but it will use its own mechanism */ |
859 | msg->wdata.active = true; |
859 | msg->wdata.active = true; |
860 | 860 | ||
861 | ipc_call_async_5(phoneid, method, arg1, arg2, arg3, arg4, arg5, msg, |
861 | ipc_call_async_5(phoneid, method, arg1, arg2, arg3, arg4, arg5, msg, |
862 | reply_received, true); |
862 | reply_received, true); |
863 | 863 | ||
864 | return (aid_t) msg; |
864 | return (aid_t) msg; |
865 | } |
865 | } |
866 | 866 | ||
867 | /** Wait for a message sent by the async framework. |
867 | /** Wait for a message sent by the async framework. |
868 | * |
868 | * |
869 | * @param amsgid Hash of the message to wait for. |
869 | * @param amsgid Hash of the message to wait for. |
870 | * @param retval Pointer to storage where the retval of the answer will |
870 | * @param retval Pointer to storage where the retval of the answer will |
871 | * be stored. |
871 | * be stored. |
872 | * |
872 | * |
873 | */ |
873 | */ |
874 | void async_wait_for(aid_t amsgid, ipcarg_t *retval) |
874 | void async_wait_for(aid_t amsgid, ipcarg_t *retval) |
875 | { |
875 | { |
876 | amsg_t *msg = (amsg_t *) amsgid; |
876 | amsg_t *msg = (amsg_t *) amsgid; |
877 | 877 | ||
878 | futex_down(&async_futex); |
878 | futex_down(&async_futex); |
879 | if (msg->done) { |
879 | if (msg->done) { |
880 | futex_up(&async_futex); |
880 | futex_up(&async_futex); |
881 | goto done; |
881 | goto done; |
882 | } |
882 | } |
883 | 883 | ||
884 | msg->wdata.fid = fibril_get_id(); |
884 | msg->wdata.fid = fibril_get_id(); |
885 | msg->wdata.active = false; |
885 | msg->wdata.active = false; |
886 | msg->wdata.inlist = false; |
886 | msg->wdata.inlist = false; |
887 | 887 | ||
888 | /* Leave the async_futex locked when entering this function */ |
888 | /* Leave the async_futex locked when entering this function */ |
889 | fibril_switch(FIBRIL_TO_MANAGER); |
889 | fibril_switch(FIBRIL_TO_MANAGER); |
890 | 890 | ||
891 | /* Futex is up automatically after fibril_switch */ |
891 | /* Futex is up automatically after fibril_switch */ |
892 | 892 | ||
893 | done: |
893 | done: |
894 | if (retval) |
894 | if (retval) |
895 | *retval = msg->retval; |
895 | *retval = msg->retval; |
896 | 896 | ||
897 | free(msg); |
897 | free(msg); |
898 | } |
898 | } |
899 | 899 | ||
900 | /** Wait for a message sent by the async framework, timeout variant. |
900 | /** Wait for a message sent by the async framework, timeout variant. |
901 | * |
901 | * |
902 | * @param amsgid Hash of the message to wait for. |
902 | * @param amsgid Hash of the message to wait for. |
903 | * @param retval Pointer to storage where the retval of the answer will |
903 | * @param retval Pointer to storage where the retval of the answer will |
904 | * be stored. |
904 | * be stored. |
905 | * @param timeout Timeout in microseconds. |
905 | * @param timeout Timeout in microseconds. |
906 | * |
906 | * |
907 | * @return Zero on success, ETIMEOUT if the timeout has expired. |
907 | * @return Zero on success, ETIMEOUT if the timeout has expired. |
908 | * |
908 | * |
909 | */ |
909 | */ |
910 | int async_wait_timeout(aid_t amsgid, ipcarg_t *retval, suseconds_t timeout) |
910 | int async_wait_timeout(aid_t amsgid, ipcarg_t *retval, suseconds_t timeout) |
911 | { |
911 | { |
912 | amsg_t *msg = (amsg_t *) amsgid; |
912 | amsg_t *msg = (amsg_t *) amsgid; |
913 | 913 | ||
914 | /* TODO: Let it go through the event read at least once */ |
914 | /* TODO: Let it go through the event read at least once */ |
915 | if (timeout < 0) |
915 | if (timeout < 0) |
916 | return ETIMEOUT; |
916 | return ETIMEOUT; |
917 | 917 | ||
918 | futex_down(&async_futex); |
918 | futex_down(&async_futex); |
919 | if (msg->done) { |
919 | if (msg->done) { |
920 | futex_up(&async_futex); |
920 | futex_up(&async_futex); |
921 | goto done; |
921 | goto done; |
922 | } |
922 | } |
923 | 923 | ||
924 | gettimeofday(&msg->wdata.expires, NULL); |
924 | gettimeofday(&msg->wdata.expires, NULL); |
925 | tv_add(&msg->wdata.expires, timeout); |
925 | tv_add(&msg->wdata.expires, timeout); |
926 | 926 | ||
927 | msg->wdata.fid = fibril_get_id(); |
927 | msg->wdata.fid = fibril_get_id(); |
928 | msg->wdata.active = false; |
928 | msg->wdata.active = false; |
929 | insert_timeout(&msg->wdata); |
929 | insert_timeout(&msg->wdata); |
930 | 930 | ||
931 | /* Leave the async_futex locked when entering this function */ |
931 | /* Leave the async_futex locked when entering this function */ |
932 | fibril_switch(FIBRIL_TO_MANAGER); |
932 | fibril_switch(FIBRIL_TO_MANAGER); |
933 | 933 | ||
934 | /* Futex is up automatically after fibril_switch */ |
934 | /* Futex is up automatically after fibril_switch */ |
935 | 935 | ||
936 | if (!msg->done) |
936 | if (!msg->done) |
937 | return ETIMEOUT; |
937 | return ETIMEOUT; |
938 | 938 | ||
939 | done: |
939 | done: |
940 | if (retval) |
940 | if (retval) |
941 | *retval = msg->retval; |
941 | *retval = msg->retval; |
942 | 942 | ||
943 | free(msg); |
943 | free(msg); |
944 | 944 | ||
945 | return 0; |
945 | return 0; |
946 | } |
946 | } |
947 | 947 | ||
948 | /** Wait for specified time. |
948 | /** Wait for specified time. |
949 | * |
949 | * |
950 | * The current fibril is suspended but the thread continues to execute. |
950 | * The current fibril is suspended but the thread continues to execute. |
951 | * |
951 | * |
952 | * @param timeout Duration of the wait in microseconds. |
952 | * @param timeout Duration of the wait in microseconds. |
953 | * |
953 | * |
954 | */ |
954 | */ |
955 | void async_usleep(suseconds_t timeout) |
955 | void async_usleep(suseconds_t timeout) |
956 | { |
956 | { |
957 | amsg_t *msg = malloc(sizeof(*msg)); |
957 | amsg_t *msg = malloc(sizeof(*msg)); |
958 | 958 | ||
959 | if (!msg) |
959 | if (!msg) |
960 | return; |
960 | return; |
961 | 961 | ||
962 | msg->wdata.fid = fibril_get_id(); |
962 | msg->wdata.fid = fibril_get_id(); |
963 | msg->wdata.active = false; |
963 | msg->wdata.active = false; |
964 | 964 | ||
965 | gettimeofday(&msg->wdata.expires, NULL); |
965 | gettimeofday(&msg->wdata.expires, NULL); |
966 | tv_add(&msg->wdata.expires, timeout); |
966 | tv_add(&msg->wdata.expires, timeout); |
967 | 967 | ||
968 | futex_down(&async_futex); |
968 | futex_down(&async_futex); |
969 | 969 | ||
970 | insert_timeout(&msg->wdata); |
970 | insert_timeout(&msg->wdata); |
971 | 971 | ||
972 | /* Leave the async_futex locked when entering this function */ |
972 | /* Leave the async_futex locked when entering this function */ |
973 | fibril_switch(FIBRIL_TO_MANAGER); |
973 | fibril_switch(FIBRIL_TO_MANAGER); |
974 | 974 | ||
975 | /* Futex is up automatically after fibril_switch() */ |
975 | /* Futex is up automatically after fibril_switch() */ |
976 | 976 | ||
977 | free(msg); |
977 | free(msg); |
978 | } |
978 | } |
979 | 979 | ||
980 | /** Setter for client_connection function pointer. |
980 | /** Setter for client_connection function pointer. |
981 | * |
981 | * |
982 | * @param conn Function that will implement a new connection fibril. |
982 | * @param conn Function that will implement a new connection fibril. |
983 | * |
983 | * |
984 | */ |
984 | */ |
985 | void async_set_client_connection(async_client_conn_t conn) |
985 | void async_set_client_connection(async_client_conn_t conn) |
986 | { |
986 | { |
987 | client_connection = conn; |
987 | client_connection = conn; |
988 | } |
988 | } |
989 | 989 | ||
990 | /** Setter for interrupt_received function pointer. |
990 | /** Setter for interrupt_received function pointer. |
991 | * |
991 | * |
992 | * @param intr Function that will implement a new interrupt |
992 | * @param intr Function that will implement a new interrupt |
993 | * notification fibril. |
993 | * notification fibril. |
994 | */ |
994 | */ |
995 | void async_set_interrupt_received(async_client_conn_t intr) |
995 | void async_set_interrupt_received(async_client_conn_t intr) |
996 | { |
996 | { |
997 | interrupt_received = intr; |
997 | interrupt_received = intr; |
998 | } |
998 | } |
999 | 999 | ||
1000 | /** Pseudo-synchronous message sending - fast version. |
1000 | /** Pseudo-synchronous message sending - fast version. |
1001 | * |
1001 | * |
1002 | * Send message asynchronously and return only after the reply arrives. |
1002 | * Send message asynchronously and return only after the reply arrives. |
1003 | * |
1003 | * |
1004 | * This function can only transfer 4 register payload arguments. For |
1004 | * This function can only transfer 4 register payload arguments. For |
1005 | * transferring more arguments, see the slower async_req_slow(). |
1005 | * transferring more arguments, see the slower async_req_slow(). |
1006 | * |
1006 | * |
1007 | * @param phoneid Hash of the phone through which to make the call. |
1007 | * @param phoneid Hash of the phone through which to make the call. |
1008 | * @param method Method of the call. |
1008 | * @param method Method of the call. |
1009 | * @param arg1 Service-defined payload argument. |
1009 | * @param arg1 Service-defined payload argument. |
1010 | * @param arg2 Service-defined payload argument. |
1010 | * @param arg2 Service-defined payload argument. |
1011 | * @param arg3 Service-defined payload argument. |
1011 | * @param arg3 Service-defined payload argument. |
1012 | * @param arg4 Service-defined payload argument. |
1012 | * @param arg4 Service-defined payload argument. |
1013 | * @param r1 If non-NULL, storage for the 1st reply argument. |
1013 | * @param r1 If non-NULL, storage for the 1st reply argument. |
1014 | * @param r2 If non-NULL, storage for the 2nd reply argument. |
1014 | * @param r2 If non-NULL, storage for the 2nd reply argument. |
1015 | * @param r3 If non-NULL, storage for the 3rd reply argument. |
1015 | * @param r3 If non-NULL, storage for the 3rd reply argument. |
1016 | * @param r4 If non-NULL, storage for the 4th reply argument. |
1016 | * @param r4 If non-NULL, storage for the 4th reply argument. |
1017 | * @param r5 If non-NULL, storage for the 5th reply argument. |
1017 | * @param r5 If non-NULL, storage for the 5th reply argument. |
1018 | * |
1018 | * |
1019 | * @return Return code of the reply or a negative error code. |
1019 | * @return Return code of the reply or a negative error code. |
1020 | * |
1020 | * |
1021 | */ |
1021 | */ |
1022 | ipcarg_t async_req_fast(int phoneid, ipcarg_t method, ipcarg_t arg1, |
1022 | ipcarg_t async_req_fast(int phoneid, ipcarg_t method, ipcarg_t arg1, |
1023 | ipcarg_t arg2, ipcarg_t arg3, ipcarg_t arg4, ipcarg_t *r1, ipcarg_t *r2, |
1023 | ipcarg_t arg2, ipcarg_t arg3, ipcarg_t arg4, ipcarg_t *r1, ipcarg_t *r2, |
1024 | ipcarg_t *r3, ipcarg_t *r4, ipcarg_t *r5) |
1024 | ipcarg_t *r3, ipcarg_t *r4, ipcarg_t *r5) |
1025 | { |
1025 | { |
1026 | ipc_call_t result; |
1026 | ipc_call_t result; |
1027 | aid_t eid = async_send_4(phoneid, method, arg1, arg2, arg3, arg4, |
1027 | aid_t eid = async_send_4(phoneid, method, arg1, arg2, arg3, arg4, |
1028 | &result); |
1028 | &result); |
1029 | 1029 | ||
1030 | ipcarg_t rc; |
1030 | ipcarg_t rc; |
1031 | async_wait_for(eid, &rc); |
1031 | async_wait_for(eid, &rc); |
1032 | 1032 | ||
1033 | if (r1) |
1033 | if (r1) |
1034 | *r1 = IPC_GET_ARG1(result); |
1034 | *r1 = IPC_GET_ARG1(result); |
1035 | 1035 | ||
1036 | if (r2) |
1036 | if (r2) |
1037 | *r2 = IPC_GET_ARG2(result); |
1037 | *r2 = IPC_GET_ARG2(result); |
1038 | 1038 | ||
1039 | if (r3) |
1039 | if (r3) |
1040 | *r3 = IPC_GET_ARG3(result); |
1040 | *r3 = IPC_GET_ARG3(result); |
1041 | 1041 | ||
1042 | if (r4) |
1042 | if (r4) |
1043 | *r4 = IPC_GET_ARG4(result); |
1043 | *r4 = IPC_GET_ARG4(result); |
1044 | 1044 | ||
1045 | if (r5) |
1045 | if (r5) |
1046 | *r5 = IPC_GET_ARG5(result); |
1046 | *r5 = IPC_GET_ARG5(result); |
1047 | 1047 | ||
1048 | return rc; |
1048 | return rc; |
1049 | } |
1049 | } |
1050 | 1050 | ||
1051 | /** Pseudo-synchronous message sending - slow version. |
1051 | /** Pseudo-synchronous message sending - slow version. |
1052 | * |
1052 | * |
1053 | * Send message asynchronously and return only after the reply arrives. |
1053 | * Send message asynchronously and return only after the reply arrives. |
1054 | * |
1054 | * |
1055 | * @param phoneid Hash of the phone through which to make the call. |
1055 | * @param phoneid Hash of the phone through which to make the call. |
1056 | * @param method Method of the call. |
1056 | * @param method Method of the call. |
1057 | * @param arg1 Service-defined payload argument. |
1057 | * @param arg1 Service-defined payload argument. |
1058 | * @param arg2 Service-defined payload argument. |
1058 | * @param arg2 Service-defined payload argument. |
1059 | * @param arg3 Service-defined payload argument. |
1059 | * @param arg3 Service-defined payload argument. |
1060 | * @param arg4 Service-defined payload argument. |
1060 | * @param arg4 Service-defined payload argument. |
1061 | * @param arg5 Service-defined payload argument. |
1061 | * @param arg5 Service-defined payload argument. |
1062 | * @param r1 If non-NULL, storage for the 1st reply argument. |
1062 | * @param r1 If non-NULL, storage for the 1st reply argument. |
1063 | * @param r2 If non-NULL, storage for the 2nd reply argument. |
1063 | * @param r2 If non-NULL, storage for the 2nd reply argument. |
1064 | * @param r3 If non-NULL, storage for the 3rd reply argument. |
1064 | * @param r3 If non-NULL, storage for the 3rd reply argument. |
1065 | * @param r4 If non-NULL, storage for the 4th reply argument. |
1065 | * @param r4 If non-NULL, storage for the 4th reply argument. |
1066 | * @param r5 If non-NULL, storage for the 5th reply argument. |
1066 | * @param r5 If non-NULL, storage for the 5th reply argument. |
1067 | * |
1067 | * |
1068 | * @return Return code of the reply or a negative error code. |
1068 | * @return Return code of the reply or a negative error code. |
1069 | * |
1069 | * |
1070 | */ |
1070 | */ |
1071 | ipcarg_t async_req_slow(int phoneid, ipcarg_t method, ipcarg_t arg1, |
1071 | ipcarg_t async_req_slow(int phoneid, ipcarg_t method, ipcarg_t arg1, |
1072 | ipcarg_t arg2, ipcarg_t arg3, ipcarg_t arg4, ipcarg_t arg5, ipcarg_t *r1, |
1072 | ipcarg_t arg2, ipcarg_t arg3, ipcarg_t arg4, ipcarg_t arg5, ipcarg_t *r1, |
1073 | ipcarg_t *r2, ipcarg_t *r3, ipcarg_t *r4, ipcarg_t *r5) |
1073 | ipcarg_t *r2, ipcarg_t *r3, ipcarg_t *r4, ipcarg_t *r5) |
1074 | { |
1074 | { |
1075 | ipc_call_t result; |
1075 | ipc_call_t result; |
1076 | aid_t eid = async_send_5(phoneid, method, arg1, arg2, arg3, arg4, arg5, |
1076 | aid_t eid = async_send_5(phoneid, method, arg1, arg2, arg3, arg4, arg5, |
1077 | &result); |
1077 | &result); |
1078 | 1078 | ||
1079 | ipcarg_t rc; |
1079 | ipcarg_t rc; |
1080 | async_wait_for(eid, &rc); |
1080 | async_wait_for(eid, &rc); |
1081 | 1081 | ||
1082 | if (r1) |
1082 | if (r1) |
1083 | *r1 = IPC_GET_ARG1(result); |
1083 | *r1 = IPC_GET_ARG1(result); |
1084 | 1084 | ||
1085 | if (r2) |
1085 | if (r2) |
1086 | *r2 = IPC_GET_ARG2(result); |
1086 | *r2 = IPC_GET_ARG2(result); |
1087 | 1087 | ||
1088 | if (r3) |
1088 | if (r3) |
1089 | *r3 = IPC_GET_ARG3(result); |
1089 | *r3 = IPC_GET_ARG3(result); |
1090 | 1090 | ||
1091 | if (r4) |
1091 | if (r4) |
1092 | *r4 = IPC_GET_ARG4(result); |
1092 | *r4 = IPC_GET_ARG4(result); |
1093 | 1093 | ||
1094 | if (r5) |
1094 | if (r5) |
1095 | *r5 = IPC_GET_ARG5(result); |
1095 | *r5 = IPC_GET_ARG5(result); |
1096 | 1096 | ||
1097 | return rc; |
1097 | return rc; |
1098 | } |
1098 | } |
1099 | 1099 | ||
1100 | /** @} |
1100 | /** @} |
1101 | */ |
1101 | */ |
1102 | 1102 |