source: mainline/uspace/lib/c/include/async.h@ efa3136

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since efa3136 was efa3136, checked in by Martin Decky <martin@…>, 7 years ago

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1/*
2 * Copyright (c) 2006 Ondrej Palkovsky
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
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
15 * derived from this software without specific prior written permission.
16 *
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
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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
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
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup libc
30 * @{
31 */
32/** @file
33 */
34
35#if ((defined(LIBC_IPC_H_)) && (!defined(LIBC_ASYNC_C_)))
36#error Do not intermix low-level IPC interface and async framework
37#endif
38
39#ifndef LIBC_ASYNC_H_
40#define LIBC_ASYNC_H_
41
42#include <ipc/common.h>
43#include <fibril.h>
44#include <sys/time.h>
45#include <atomic.h>
46#include <stdbool.h>
47#include <abi/proc/task.h>
48#include <abi/ddi/irq.h>
49#include <abi/ipc/event.h>
50#include <abi/ipc/interfaces.h>
51#include <abi/cap.h>
52
53#include <_bits/__noreturn.h>
54
55typedef sysarg_t aid_t;
56typedef sysarg_t port_id_t;
57
58typedef void *(*async_client_data_ctor_t)(void);
59typedef void (*async_client_data_dtor_t)(void *);
60
61/** Port connection handler
62 *
63 * @param call Incoming call or NULL if connection initiated from inside
64 * using async_create_callback_port()
65 * @param arg Local argument.
66 *
67 */
68typedef void (*async_port_handler_t)(ipc_call_t *, void *);
69
70/** Notification handler */
71typedef void (*async_notification_handler_t)(ipc_call_t *, void *);
72
73/** Exchange management style
74 *
75 */
76typedef enum {
77 /** No explicit exchange management
78 *
79 * Suitable for protocols which use a single
80 * IPC message per exchange only.
81 *
82 */
83 EXCHANGE_ATOMIC = 0,
84
85 /** Exchange management via mutual exclusion
86 *
87 * Suitable for any kind of client/server communication,
88 * but can limit parallelism.
89 *
90 */
91 EXCHANGE_SERIALIZE = 1,
92
93 /** Exchange management via phone cloning
94 *
95 * Suitable for servers which support client
96 * data tracking by task hashes and do not
97 * mind cloned phones.
98 *
99 */
100 EXCHANGE_PARALLEL = 2
101} exch_mgmt_t;
102
103/** Forward declarations */
104struct async_exch;
105struct async_sess;
106
107typedef struct async_sess async_sess_t;
108typedef struct async_exch async_exch_t;
109
110extern __noreturn void async_manager(void);
111
112#define async_get_call(data) \
113 async_get_call_timeout(data, 0)
114
115extern bool async_get_call_timeout(ipc_call_t *, suseconds_t);
116
117/*
118 * User-friendly wrappers for async_send_fast() and async_send_slow(). The
119 * macros are in the form async_send_m(), where m denotes the number of payload
120 * arguments. Each macros chooses between the fast and the slow version based
121 * on m.
122 */
123
124#define async_send_0(exch, method, dataptr) \
125 async_send_fast(exch, method, 0, 0, 0, 0, dataptr)
126#define async_send_1(exch, method, arg1, dataptr) \
127 async_send_fast(exch, method, arg1, 0, 0, 0, dataptr)
128#define async_send_2(exch, method, arg1, arg2, dataptr) \
129 async_send_fast(exch, method, arg1, arg2, 0, 0, dataptr)
130#define async_send_3(exch, method, arg1, arg2, arg3, dataptr) \
131 async_send_fast(exch, method, arg1, arg2, arg3, 0, dataptr)
132#define async_send_4(exch, method, arg1, arg2, arg3, arg4, dataptr) \
133 async_send_fast(exch, method, arg1, arg2, arg3, arg4, dataptr)
134#define async_send_5(exch, method, arg1, arg2, arg3, arg4, arg5, dataptr) \
135 async_send_slow(exch, method, arg1, arg2, arg3, arg4, arg5, dataptr)
136
137extern aid_t async_send_fast(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
138 sysarg_t, sysarg_t, ipc_call_t *);
139extern aid_t async_send_slow(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
140 sysarg_t, sysarg_t, sysarg_t, ipc_call_t *);
141
142extern void async_wait_for(aid_t, errno_t *);
143extern errno_t async_wait_timeout(aid_t, errno_t *, suseconds_t);
144extern void async_forget(aid_t);
145
146extern void async_set_client_data_constructor(async_client_data_ctor_t);
147extern void async_set_client_data_destructor(async_client_data_dtor_t);
148extern void *async_get_client_data(void);
149extern void *async_get_client_data_by_id(task_id_t);
150extern void async_put_client_data_by_id(task_id_t);
151
152extern errno_t async_create_port(iface_t, async_port_handler_t, void *,
153 port_id_t *);
154extern void async_set_fallback_port_handler(async_port_handler_t, void *);
155extern errno_t async_create_callback_port(async_exch_t *, iface_t, sysarg_t,
156 sysarg_t, async_port_handler_t, void *, port_id_t *);
157
158extern errno_t async_irq_subscribe(int, async_notification_handler_t, void *,
159 const irq_code_t *, cap_irq_handle_t *);
160extern errno_t async_irq_unsubscribe(cap_irq_handle_t);
161
162extern errno_t async_event_subscribe(event_type_t, async_notification_handler_t,
163 void *);
164extern errno_t async_event_task_subscribe(event_task_type_t,
165 async_notification_handler_t, void *);
166extern errno_t async_event_unsubscribe(event_type_t);
167extern errno_t async_event_task_unsubscribe(event_task_type_t);
168extern errno_t async_event_unmask(event_type_t);
169extern errno_t async_event_task_unmask(event_task_type_t);
170
171/*
172 * Wrappers for simple communication.
173 */
174
175extern void async_msg_0(async_exch_t *, sysarg_t);
176extern void async_msg_1(async_exch_t *, sysarg_t, sysarg_t);
177extern void async_msg_2(async_exch_t *, sysarg_t, sysarg_t, sysarg_t);
178extern void async_msg_3(async_exch_t *, sysarg_t, sysarg_t, sysarg_t, sysarg_t);
179extern void async_msg_4(async_exch_t *, sysarg_t, sysarg_t, sysarg_t, sysarg_t,
180 sysarg_t);
181extern void async_msg_5(async_exch_t *, sysarg_t, sysarg_t, sysarg_t, sysarg_t,
182 sysarg_t, sysarg_t);
183
184/*
185 * Wrappers for answer routines.
186 */
187
188extern errno_t async_answer_0(ipc_call_t *, errno_t);
189extern errno_t async_answer_1(ipc_call_t *, errno_t, sysarg_t);
190extern errno_t async_answer_2(ipc_call_t *, errno_t, sysarg_t, sysarg_t);
191extern errno_t async_answer_3(ipc_call_t *, errno_t, sysarg_t, sysarg_t,
192 sysarg_t);
193extern errno_t async_answer_4(ipc_call_t *, errno_t, sysarg_t, sysarg_t,
194 sysarg_t, sysarg_t);
195extern errno_t async_answer_5(ipc_call_t *, errno_t, sysarg_t, sysarg_t,
196 sysarg_t, sysarg_t, sysarg_t);
197
198/*
199 * Wrappers for forwarding routines.
200 */
201
202extern errno_t async_forward_fast(ipc_call_t *, async_exch_t *, sysarg_t,
203 sysarg_t, sysarg_t, unsigned int);
204extern errno_t async_forward_slow(ipc_call_t *, async_exch_t *, sysarg_t,
205 sysarg_t, sysarg_t, sysarg_t, sysarg_t, sysarg_t, unsigned int);
206
207/*
208 * User-friendly wrappers for async_req_fast() and async_req_slow(). The macros
209 * are in the form async_req_m_n(), where m is the number of payload arguments
210 * and n is the number of return arguments. The macros decide between the fast
211 * and slow verion based on m.
212 */
213
214#define async_req_0_0(exch, method) \
215 async_req_fast(exch, method, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL)
216#define async_req_0_1(exch, method, r1) \
217 async_req_fast(exch, method, 0, 0, 0, 0, r1, NULL, NULL, NULL, NULL)
218#define async_req_0_2(exch, method, r1, r2) \
219 async_req_fast(exch, method, 0, 0, 0, 0, r1, r2, NULL, NULL, NULL)
220#define async_req_0_3(exch, method, r1, r2, r3) \
221 async_req_fast(exch, method, 0, 0, 0, 0, r1, r2, r3, NULL, NULL)
222#define async_req_0_4(exch, method, r1, r2, r3, r4) \
223 async_req_fast(exch, method, 0, 0, 0, 0, r1, r2, r3, r4, NULL)
224#define async_req_0_5(exch, method, r1, r2, r3, r4, r5) \
225 async_req_fast(exch, method, 0, 0, 0, 0, r1, r2, r3, r4, r5)
226
227#define async_req_1_0(exch, method, arg1) \
228 async_req_fast(exch, method, arg1, 0, 0, 0, NULL, NULL, NULL, NULL, \
229 NULL)
230#define async_req_1_1(exch, method, arg1, rc1) \
231 async_req_fast(exch, method, arg1, 0, 0, 0, rc1, NULL, NULL, NULL, \
232 NULL)
233#define async_req_1_2(exch, method, arg1, rc1, rc2) \
234 async_req_fast(exch, method, arg1, 0, 0, 0, rc1, rc2, NULL, NULL, \
235 NULL)
236#define async_req_1_3(exch, method, arg1, rc1, rc2, rc3) \
237 async_req_fast(exch, method, arg1, 0, 0, 0, rc1, rc2, rc3, NULL, \
238 NULL)
239#define async_req_1_4(exch, method, arg1, rc1, rc2, rc3, rc4) \
240 async_req_fast(exch, method, arg1, 0, 0, 0, rc1, rc2, rc3, rc4, \
241 NULL)
242#define async_req_1_5(exch, method, arg1, rc1, rc2, rc3, rc4, rc5) \
243 async_req_fast(exch, method, arg1, 0, 0, 0, rc1, rc2, rc3, rc4, \
244 rc5)
245
246#define async_req_2_0(exch, method, arg1, arg2) \
247 async_req_fast(exch, method, arg1, arg2, 0, 0, NULL, NULL, NULL, \
248 NULL, NULL)
249#define async_req_2_1(exch, method, arg1, arg2, rc1) \
250 async_req_fast(exch, method, arg1, arg2, 0, 0, rc1, NULL, NULL, \
251 NULL, NULL)
252#define async_req_2_2(exch, method, arg1, arg2, rc1, rc2) \
253 async_req_fast(exch, method, arg1, arg2, 0, 0, rc1, rc2, NULL, NULL, \
254 NULL)
255#define async_req_2_3(exch, method, arg1, arg2, rc1, rc2, rc3) \
256 async_req_fast(exch, method, arg1, arg2, 0, 0, rc1, rc2, rc3, NULL, \
257 NULL)
258#define async_req_2_4(exch, method, arg1, arg2, rc1, rc2, rc3, rc4) \
259 async_req_fast(exch, method, arg1, arg2, 0, 0, rc1, rc2, rc3, rc4, \
260 NULL)
261#define async_req_2_5(exch, method, arg1, arg2, rc1, rc2, rc3, rc4, rc5) \
262 async_req_fast(exch, method, arg1, arg2, 0, 0, rc1, rc2, rc3, rc4, \
263 rc5)
264
265#define async_req_3_0(exch, method, arg1, arg2, arg3) \
266 async_req_fast(exch, method, arg1, arg2, arg3, 0, NULL, NULL, NULL, \
267 NULL, NULL)
268#define async_req_3_1(exch, method, arg1, arg2, arg3, rc1) \
269 async_req_fast(exch, method, arg1, arg2, arg3, 0, rc1, NULL, NULL, \
270 NULL, NULL)
271#define async_req_3_2(exch, method, arg1, arg2, arg3, rc1, rc2) \
272 async_req_fast(exch, method, arg1, arg2, arg3, 0, rc1, rc2, NULL, \
273 NULL, NULL)
274#define async_req_3_3(exch, method, arg1, arg2, arg3, rc1, rc2, rc3) \
275 async_req_fast(exch, method, arg1, arg2, arg3, 0, rc1, rc2, rc3, \
276 NULL, NULL)
277#define async_req_3_4(exch, method, arg1, arg2, arg3, rc1, rc2, rc3, rc4) \
278 async_req_fast(exch, method, arg1, arg2, arg3, 0, rc1, rc2, rc3, \
279 rc4, NULL)
280#define async_req_3_5(exch, method, arg1, arg2, arg3, rc1, rc2, rc3, rc4, \
281 rc5) \
282 async_req_fast(exch, method, arg1, arg2, arg3, 0, rc1, rc2, rc3, \
283 rc4, rc5)
284
285#define async_req_4_0(exch, method, arg1, arg2, arg3, arg4) \
286 async_req_fast(exch, method, arg1, arg2, arg3, arg4, NULL, NULL, \
287 NULL, NULL, NULL)
288#define async_req_4_1(exch, method, arg1, arg2, arg3, arg4, rc1) \
289 async_req_fast(exch, method, arg1, arg2, arg3, arg4, rc1, NULL, \
290 NULL, NULL, NULL)
291#define async_req_4_2(exch, method, arg1, arg2, arg3, arg4, rc1, rc2) \
292 async_req_fast(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, NULL, \
293 NULL, NULL)
294#define async_req_4_3(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3) \
295 async_req_fast(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3, \
296 NULL, NULL)
297#define async_req_4_4(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3, \
298 rc4) \
299 async_req_fast(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3, \
300 rc4, NULL)
301#define async_req_4_5(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3, \
302 rc4, rc5) \
303 async_req_fast(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3, \
304 rc4, rc5)
305
306#define async_req_5_0(exch, method, arg1, arg2, arg3, arg4, arg5) \
307 async_req_slow(exch, method, arg1, arg2, arg3, arg4, arg5, NULL, \
308 NULL, NULL, NULL, NULL)
309#define async_req_5_1(exch, method, arg1, arg2, arg3, arg4, arg5, rc1) \
310 async_req_slow(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, \
311 NULL, NULL, NULL, NULL)
312#define async_req_5_2(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2) \
313 async_req_slow(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
314 NULL, NULL, NULL)
315#define async_req_5_3(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
316 rc3) \
317 async_req_slow(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
318 rc3, NULL, NULL)
319#define async_req_5_4(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
320 rc3, rc4) \
321 async_req_slow(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
322 rc3, rc4, NULL)
323#define async_req_5_5(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
324 rc3, rc4, rc5) \
325 async_req_slow(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
326 rc3, rc4, rc5)
327
328extern errno_t async_req_fast(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
329 sysarg_t, sysarg_t, sysarg_t *, sysarg_t *, sysarg_t *, sysarg_t *,
330 sysarg_t *);
331extern errno_t async_req_slow(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
332 sysarg_t, sysarg_t, sysarg_t, sysarg_t *, sysarg_t *, sysarg_t *,
333 sysarg_t *, sysarg_t *);
334
335extern async_sess_t *async_connect_me_to(async_exch_t *, iface_t, sysarg_t,
336 sysarg_t);
337extern async_sess_t *async_connect_me_to_blocking(async_exch_t *, iface_t,
338 sysarg_t, sysarg_t);
339extern async_sess_t *async_connect_kbox(task_id_t);
340
341extern errno_t async_connect_to_me(async_exch_t *, iface_t, sysarg_t, sysarg_t);
342
343extern errno_t async_hangup(async_sess_t *);
344
345extern async_exch_t *async_exchange_begin(async_sess_t *);
346extern void async_exchange_end(async_exch_t *);
347
348/*
349 * FIXME These functions just work around problems with parallel exchange
350 * management. Proper solution needs to be implemented.
351 */
352extern void async_sess_args_set(async_sess_t *, iface_t, sysarg_t, sysarg_t);
353
354/*
355 * User-friendly wrappers for async_share_in_start().
356 */
357
358#define async_share_in_start_0_0(exch, size, dst) \
359 async_share_in_start(exch, size, 0, NULL, dst)
360#define async_share_in_start_0_1(exch, size, flags, dst) \
361 async_share_in_start(exch, size, 0, flags, dst)
362#define async_share_in_start_1_0(exch, size, arg, dst) \
363 async_share_in_start(exch, size, arg, NULL, dst)
364#define async_share_in_start_1_1(exch, size, arg, flags, dst) \
365 async_share_in_start(exch, size, arg, flags, dst)
366
367extern errno_t async_share_in_start(async_exch_t *, size_t, sysarg_t,
368 unsigned int *, void **);
369extern bool async_share_in_receive(ipc_call_t *, size_t *);
370extern errno_t async_share_in_finalize(ipc_call_t *, void *, unsigned int);
371
372extern errno_t async_share_out_start(async_exch_t *, void *, unsigned int);
373extern bool async_share_out_receive(ipc_call_t *, size_t *, unsigned int *);
374extern errno_t async_share_out_finalize(ipc_call_t *, void **);
375
376/*
377 * User-friendly wrappers for async_data_read_forward_fast().
378 */
379
380#define async_data_read_forward_0_0(exch, method, answer) \
381 async_data_read_forward_fast(exch, method, 0, 0, 0, 0, NULL)
382#define async_data_read_forward_0_1(exch, method, answer) \
383 async_data_read_forward_fast(exch, method, 0, 0, 0, 0, answer)
384#define async_data_read_forward_1_0(exch, method, arg1, answer) \
385 async_data_read_forward_fast(exch, method, arg1, 0, 0, 0, NULL)
386#define async_data_read_forward_1_1(exch, method, arg1, answer) \
387 async_data_read_forward_fast(exch, method, arg1, 0, 0, 0, answer)
388#define async_data_read_forward_2_0(exch, method, arg1, arg2, answer) \
389 async_data_read_forward_fast(exch, method, arg1, arg2, 0, 0, NULL)
390#define async_data_read_forward_2_1(exch, method, arg1, arg2, answer) \
391 async_data_read_forward_fast(exch, method, arg1, arg2, 0, 0, answer)
392#define async_data_read_forward_3_0(exch, method, arg1, arg2, arg3, answer) \
393 async_data_read_forward_fast(exch, method, arg1, arg2, arg3, 0, NULL)
394#define async_data_read_forward_3_1(exch, method, arg1, arg2, arg3, answer) \
395 async_data_read_forward_fast(exch, method, arg1, arg2, arg3, 0, \
396 answer)
397#define async_data_read_forward_4_0(exch, method, arg1, arg2, arg3, arg4, \
398 answer) \
399 async_data_read_forward_fast(exch, method, arg1, arg2, arg3, arg4, \
400 NULL)
401#define async_data_read_forward_4_1(exch, method, arg1, arg2, arg3, arg4, \
402 answer) \
403 async_data_read_forward_fast(exch, method, arg1, arg2, arg3, arg4, \
404 answer)
405
406extern aid_t async_data_read(async_exch_t *, void *, size_t, ipc_call_t *);
407extern errno_t async_data_read_start(async_exch_t *, void *, size_t);
408extern bool async_data_read_receive(ipc_call_t *, size_t *);
409extern errno_t async_data_read_finalize(ipc_call_t *, const void *, size_t);
410
411extern errno_t async_data_read_forward_fast(async_exch_t *, sysarg_t, sysarg_t,
412 sysarg_t, sysarg_t, sysarg_t, ipc_call_t *);
413
414/*
415 * User-friendly wrappers for async_data_write_forward_fast().
416 */
417
418#define async_data_write_forward_0_0(exch, method, answer) \
419 async_data_write_forward_fast(exch, method, 0, 0, 0, 0, NULL)
420#define async_data_write_forward_0_1(exch, method, answer) \
421 async_data_write_forward_fast(exch, method, 0, 0, 0, 0, answer)
422#define async_data_write_forward_1_0(exch, method, arg1, answer) \
423 async_data_write_forward_fast(exch, method, arg1, 0, 0, 0, NULL)
424#define async_data_write_forward_1_1(exch, method, arg1, answer) \
425 async_data_write_forward_fast(exch, method, arg1, 0, 0, 0, answer)
426#define async_data_write_forward_2_0(exch, method, arg1, arg2, answer) \
427 async_data_write_forward_fast(exch, method, arg1, arg2, 0, 0, NULL)
428#define async_data_write_forward_2_1(exch, method, arg1, arg2, answer) \
429 async_data_write_forward_fast(exch, method, arg1, arg2, 0, 0, answer)
430#define async_data_write_forward_3_0(exch, method, arg1, arg2, arg3, answer) \
431 async_data_write_forward_fast(exch, method, arg1, arg2, arg3, 0, \
432 NULL)
433#define async_data_write_forward_3_1(exch, method, arg1, arg2, arg3, answer) \
434 async_data_write_forward_fast(exch, method, arg1, arg2, arg3, 0, \
435 answer)
436#define async_data_write_forward_4_0(exch, method, arg1, arg2, arg3, arg4, \
437 answer) \
438 async_data_write_forward_fast(exch, method, arg1, arg2, arg3, arg4, \
439 NULL)
440#define async_data_write_forward_4_1(exch, method, arg1, arg2, arg3, arg4, \
441 answer) \
442 async_data_write_forward_fast(exch, method, arg1, arg2, arg3, arg4, \
443 answer)
444
445extern errno_t async_data_write_start(async_exch_t *, const void *, size_t);
446extern bool async_data_write_receive(ipc_call_t *, size_t *);
447extern errno_t async_data_write_finalize(ipc_call_t *, void *, size_t);
448
449extern errno_t async_data_write_accept(void **, const bool, const size_t,
450 const size_t, const size_t, size_t *);
451extern void async_data_write_void(errno_t);
452
453extern errno_t async_data_write_forward_fast(async_exch_t *, sysarg_t, sysarg_t,
454 sysarg_t, sysarg_t, sysarg_t, ipc_call_t *);
455
456extern async_sess_t *async_callback_receive(exch_mgmt_t);
457extern async_sess_t *async_callback_receive_start(exch_mgmt_t, ipc_call_t *);
458
459extern errno_t async_state_change_start(async_exch_t *, sysarg_t, sysarg_t,
460 sysarg_t, async_exch_t *);
461extern bool async_state_change_receive(ipc_call_t *);
462extern errno_t async_state_change_finalize(ipc_call_t *, async_exch_t *);
463
464extern void *async_remote_state_acquire(async_sess_t *);
465extern void async_remote_state_update(async_sess_t *, void *);
466extern void async_remote_state_release(async_sess_t *);
467extern void async_remote_state_release_exchange(async_exch_t *);
468
469extern void *async_as_area_create(void *, size_t, unsigned int, async_sess_t *,
470 sysarg_t, sysarg_t, sysarg_t);
471
472errno_t async_spawn_notification_handler(void);
473fid_t async_create_manager(void);
474
475#endif
476
477/** @}
478 */
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