source: mainline/uspace/lib/c/include/async.h@ 9b1baac

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 9b1baac was 9b1baac, checked in by Martin Decky <martin@…>, 7 years ago

ns: register service interfaces individually

Each service interface is now registered individually with the naming
service. This adds a degree of type safety, potentially allows the
individual interfaces to be implemented by independent tasks and moves
the code slightly closer to the full-fledged ports design.

Broker services (e.g. the location service) can still register a
fallback port for receiving connections to all interface types
explicitly using service_register_broker().
  • Property mode set to 100644
File size: 19.3 KB
Line 
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_create_manager(void);
147extern void async_destroy_manager(void);
148
149extern void async_set_client_data_constructor(async_client_data_ctor_t);
150extern void async_set_client_data_destructor(async_client_data_dtor_t);
151extern void *async_get_client_data(void);
152extern void *async_get_client_data_by_id(task_id_t);
153extern void async_put_client_data_by_id(task_id_t);
154
155extern errno_t async_create_port(iface_t, async_port_handler_t, void *,
156 port_id_t *);
157extern void async_set_fallback_port_handler(async_port_handler_t, void *);
158extern errno_t async_create_callback_port(async_exch_t *, iface_t, sysarg_t,
159 sysarg_t, async_port_handler_t, void *, port_id_t *);
160
161extern errno_t async_irq_subscribe(int, async_notification_handler_t, void *,
162 const irq_code_t *, cap_irq_handle_t *);
163extern errno_t async_irq_unsubscribe(cap_irq_handle_t);
164
165extern errno_t async_event_subscribe(event_type_t, async_notification_handler_t,
166 void *);
167extern errno_t async_event_task_subscribe(event_task_type_t,
168 async_notification_handler_t, void *);
169extern errno_t async_event_unsubscribe(event_type_t);
170extern errno_t async_event_task_unsubscribe(event_task_type_t);
171extern errno_t async_event_unmask(event_type_t);
172extern errno_t async_event_task_unmask(event_task_type_t);
173
174/*
175 * Wrappers for simple communication.
176 */
177
178extern void async_msg_0(async_exch_t *, sysarg_t);
179extern void async_msg_1(async_exch_t *, sysarg_t, sysarg_t);
180extern void async_msg_2(async_exch_t *, sysarg_t, sysarg_t, sysarg_t);
181extern void async_msg_3(async_exch_t *, sysarg_t, sysarg_t, sysarg_t, sysarg_t);
182extern void async_msg_4(async_exch_t *, sysarg_t, sysarg_t, sysarg_t, sysarg_t,
183 sysarg_t);
184extern void async_msg_5(async_exch_t *, sysarg_t, sysarg_t, sysarg_t, sysarg_t,
185 sysarg_t, sysarg_t);
186
187/*
188 * Wrappers for answer routines.
189 */
190
191extern errno_t async_answer_0(ipc_call_t *, errno_t);
192extern errno_t async_answer_1(ipc_call_t *, errno_t, sysarg_t);
193extern errno_t async_answer_2(ipc_call_t *, errno_t, sysarg_t, sysarg_t);
194extern errno_t async_answer_3(ipc_call_t *, errno_t, sysarg_t, sysarg_t,
195 sysarg_t);
196extern errno_t async_answer_4(ipc_call_t *, errno_t, sysarg_t, sysarg_t,
197 sysarg_t, sysarg_t);
198extern errno_t async_answer_5(ipc_call_t *, errno_t, sysarg_t, sysarg_t,
199 sysarg_t, sysarg_t, sysarg_t);
200
201/*
202 * Wrappers for forwarding routines.
203 */
204
205extern errno_t async_forward_fast(ipc_call_t *, async_exch_t *, sysarg_t,
206 sysarg_t, sysarg_t, unsigned int);
207extern errno_t async_forward_slow(ipc_call_t *, async_exch_t *, sysarg_t,
208 sysarg_t, sysarg_t, sysarg_t, sysarg_t, sysarg_t, unsigned int);
209
210/*
211 * User-friendly wrappers for async_req_fast() and async_req_slow(). The macros
212 * are in the form async_req_m_n(), where m is the number of payload arguments
213 * and n is the number of return arguments. The macros decide between the fast
214 * and slow verion based on m.
215 */
216
217#define async_req_0_0(exch, method) \
218 async_req_fast(exch, method, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL)
219#define async_req_0_1(exch, method, r1) \
220 async_req_fast(exch, method, 0, 0, 0, 0, r1, NULL, NULL, NULL, NULL)
221#define async_req_0_2(exch, method, r1, r2) \
222 async_req_fast(exch, method, 0, 0, 0, 0, r1, r2, NULL, NULL, NULL)
223#define async_req_0_3(exch, method, r1, r2, r3) \
224 async_req_fast(exch, method, 0, 0, 0, 0, r1, r2, r3, NULL, NULL)
225#define async_req_0_4(exch, method, r1, r2, r3, r4) \
226 async_req_fast(exch, method, 0, 0, 0, 0, r1, r2, r3, r4, NULL)
227#define async_req_0_5(exch, method, r1, r2, r3, r4, r5) \
228 async_req_fast(exch, method, 0, 0, 0, 0, r1, r2, r3, r4, r5)
229
230#define async_req_1_0(exch, method, arg1) \
231 async_req_fast(exch, method, arg1, 0, 0, 0, NULL, NULL, NULL, NULL, \
232 NULL)
233#define async_req_1_1(exch, method, arg1, rc1) \
234 async_req_fast(exch, method, arg1, 0, 0, 0, rc1, NULL, NULL, NULL, \
235 NULL)
236#define async_req_1_2(exch, method, arg1, rc1, rc2) \
237 async_req_fast(exch, method, arg1, 0, 0, 0, rc1, rc2, NULL, NULL, \
238 NULL)
239#define async_req_1_3(exch, method, arg1, rc1, rc2, rc3) \
240 async_req_fast(exch, method, arg1, 0, 0, 0, rc1, rc2, rc3, NULL, \
241 NULL)
242#define async_req_1_4(exch, method, arg1, rc1, rc2, rc3, rc4) \
243 async_req_fast(exch, method, arg1, 0, 0, 0, rc1, rc2, rc3, rc4, \
244 NULL)
245#define async_req_1_5(exch, method, arg1, rc1, rc2, rc3, rc4, rc5) \
246 async_req_fast(exch, method, arg1, 0, 0, 0, rc1, rc2, rc3, rc4, \
247 rc5)
248
249#define async_req_2_0(exch, method, arg1, arg2) \
250 async_req_fast(exch, method, arg1, arg2, 0, 0, NULL, NULL, NULL, \
251 NULL, NULL)
252#define async_req_2_1(exch, method, arg1, arg2, rc1) \
253 async_req_fast(exch, method, arg1, arg2, 0, 0, rc1, NULL, NULL, \
254 NULL, NULL)
255#define async_req_2_2(exch, method, arg1, arg2, rc1, rc2) \
256 async_req_fast(exch, method, arg1, arg2, 0, 0, rc1, rc2, NULL, NULL, \
257 NULL)
258#define async_req_2_3(exch, method, arg1, arg2, rc1, rc2, rc3) \
259 async_req_fast(exch, method, arg1, arg2, 0, 0, rc1, rc2, rc3, NULL, \
260 NULL)
261#define async_req_2_4(exch, method, arg1, arg2, rc1, rc2, rc3, rc4) \
262 async_req_fast(exch, method, arg1, arg2, 0, 0, rc1, rc2, rc3, rc4, \
263 NULL)
264#define async_req_2_5(exch, method, arg1, arg2, rc1, rc2, rc3, rc4, rc5) \
265 async_req_fast(exch, method, arg1, arg2, 0, 0, rc1, rc2, rc3, rc4, \
266 rc5)
267
268#define async_req_3_0(exch, method, arg1, arg2, arg3) \
269 async_req_fast(exch, method, arg1, arg2, arg3, 0, NULL, NULL, NULL, \
270 NULL, NULL)
271#define async_req_3_1(exch, method, arg1, arg2, arg3, rc1) \
272 async_req_fast(exch, method, arg1, arg2, arg3, 0, rc1, NULL, NULL, \
273 NULL, NULL)
274#define async_req_3_2(exch, method, arg1, arg2, arg3, rc1, rc2) \
275 async_req_fast(exch, method, arg1, arg2, arg3, 0, rc1, rc2, NULL, \
276 NULL, NULL)
277#define async_req_3_3(exch, method, arg1, arg2, arg3, rc1, rc2, rc3) \
278 async_req_fast(exch, method, arg1, arg2, arg3, 0, rc1, rc2, rc3, \
279 NULL, NULL)
280#define async_req_3_4(exch, method, arg1, arg2, arg3, rc1, rc2, rc3, rc4) \
281 async_req_fast(exch, method, arg1, arg2, arg3, 0, rc1, rc2, rc3, \
282 rc4, NULL)
283#define async_req_3_5(exch, method, arg1, arg2, arg3, rc1, rc2, rc3, rc4, \
284 rc5) \
285 async_req_fast(exch, method, arg1, arg2, arg3, 0, rc1, rc2, rc3, \
286 rc4, rc5)
287
288#define async_req_4_0(exch, method, arg1, arg2, arg3, arg4) \
289 async_req_fast(exch, method, arg1, arg2, arg3, arg4, NULL, NULL, \
290 NULL, NULL, NULL)
291#define async_req_4_1(exch, method, arg1, arg2, arg3, arg4, rc1) \
292 async_req_fast(exch, method, arg1, arg2, arg3, arg4, rc1, NULL, \
293 NULL, NULL, NULL)
294#define async_req_4_2(exch, method, arg1, arg2, arg3, arg4, rc1, rc2) \
295 async_req_fast(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, NULL, \
296 NULL, NULL)
297#define async_req_4_3(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3) \
298 async_req_fast(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3, \
299 NULL, NULL)
300#define async_req_4_4(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3, \
301 rc4) \
302 async_req_fast(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3, \
303 rc4, NULL)
304#define async_req_4_5(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3, \
305 rc4, rc5) \
306 async_req_fast(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3, \
307 rc4, rc5)
308
309#define async_req_5_0(exch, method, arg1, arg2, arg3, arg4, arg5) \
310 async_req_slow(exch, method, arg1, arg2, arg3, arg4, arg5, NULL, \
311 NULL, NULL, NULL, NULL)
312#define async_req_5_1(exch, method, arg1, arg2, arg3, arg4, arg5, rc1) \
313 async_req_slow(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, \
314 NULL, NULL, NULL, NULL)
315#define async_req_5_2(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2) \
316 async_req_slow(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
317 NULL, NULL, NULL)
318#define async_req_5_3(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
319 rc3) \
320 async_req_slow(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
321 rc3, NULL, NULL)
322#define async_req_5_4(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
323 rc3, rc4) \
324 async_req_slow(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
325 rc3, rc4, NULL)
326#define async_req_5_5(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
327 rc3, rc4, rc5) \
328 async_req_slow(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
329 rc3, rc4, rc5)
330
331extern errno_t async_req_fast(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 *);
334extern errno_t async_req_slow(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
335 sysarg_t, sysarg_t, sysarg_t, sysarg_t *, sysarg_t *, sysarg_t *,
336 sysarg_t *, sysarg_t *);
337
338extern async_sess_t *async_connect_me_to(async_exch_t *, iface_t, sysarg_t,
339 sysarg_t);
340extern async_sess_t *async_connect_me_to_blocking(async_exch_t *, iface_t,
341 sysarg_t, sysarg_t);
342extern async_sess_t *async_connect_kbox(task_id_t);
343
344extern errno_t async_connect_to_me(async_exch_t *, iface_t, sysarg_t, sysarg_t);
345
346extern errno_t async_hangup(async_sess_t *);
347extern void async_poke(void);
348
349extern async_exch_t *async_exchange_begin(async_sess_t *);
350extern void async_exchange_end(async_exch_t *);
351
352/*
353 * FIXME These functions just work around problems with parallel exchange
354 * management. Proper solution needs to be implemented.
355 */
356void async_sess_args_set(async_sess_t *sess, iface_t, sysarg_t, sysarg_t);
357
358/*
359 * User-friendly wrappers for async_share_in_start().
360 */
361
362#define async_share_in_start_0_0(exch, size, dst) \
363 async_share_in_start(exch, size, 0, NULL, dst)
364#define async_share_in_start_0_1(exch, size, flags, dst) \
365 async_share_in_start(exch, size, 0, flags, dst)
366#define async_share_in_start_1_0(exch, size, arg, dst) \
367 async_share_in_start(exch, size, arg, NULL, dst)
368#define async_share_in_start_1_1(exch, size, arg, flags, dst) \
369 async_share_in_start(exch, size, arg, flags, dst)
370
371extern errno_t async_share_in_start(async_exch_t *, size_t, sysarg_t,
372 unsigned int *, void **);
373extern bool async_share_in_receive(ipc_call_t *, size_t *);
374extern errno_t async_share_in_finalize(ipc_call_t *, void *, unsigned int);
375
376extern errno_t async_share_out_start(async_exch_t *, void *, unsigned int);
377extern bool async_share_out_receive(ipc_call_t *, size_t *, unsigned int *);
378extern errno_t async_share_out_finalize(ipc_call_t *, void **);
379
380/*
381 * User-friendly wrappers for async_data_read_forward_fast().
382 */
383
384#define async_data_read_forward_0_0(exch, method, answer) \
385 async_data_read_forward_fast(exch, method, 0, 0, 0, 0, NULL)
386#define async_data_read_forward_0_1(exch, method, answer) \
387 async_data_read_forward_fast(exch, method, 0, 0, 0, 0, answer)
388#define async_data_read_forward_1_0(exch, method, arg1, answer) \
389 async_data_read_forward_fast(exch, method, arg1, 0, 0, 0, NULL)
390#define async_data_read_forward_1_1(exch, method, arg1, answer) \
391 async_data_read_forward_fast(exch, method, arg1, 0, 0, 0, answer)
392#define async_data_read_forward_2_0(exch, method, arg1, arg2, answer) \
393 async_data_read_forward_fast(exch, method, arg1, arg2, 0, 0, NULL)
394#define async_data_read_forward_2_1(exch, method, arg1, arg2, answer) \
395 async_data_read_forward_fast(exch, method, arg1, arg2, 0, 0, answer)
396#define async_data_read_forward_3_0(exch, method, arg1, arg2, arg3, answer) \
397 async_data_read_forward_fast(exch, method, arg1, arg2, arg3, 0, NULL)
398#define async_data_read_forward_3_1(exch, method, arg1, arg2, arg3, answer) \
399 async_data_read_forward_fast(exch, method, arg1, arg2, arg3, 0, \
400 answer)
401#define async_data_read_forward_4_0(exch, method, arg1, arg2, arg3, arg4, \
402 answer) \
403 async_data_read_forward_fast(exch, method, arg1, arg2, arg3, arg4, \
404 NULL)
405#define async_data_read_forward_4_1(exch, method, arg1, arg2, arg3, arg4, \
406 answer) \
407 async_data_read_forward_fast(exch, method, arg1, arg2, arg3, arg4, \
408 answer)
409
410extern aid_t async_data_read(async_exch_t *, void *, size_t, ipc_call_t *);
411extern errno_t async_data_read_start(async_exch_t *, void *, size_t);
412extern bool async_data_read_receive(ipc_call_t *, size_t *);
413extern errno_t async_data_read_finalize(ipc_call_t *, const void *, size_t);
414
415extern errno_t async_data_read_forward_fast(async_exch_t *, sysarg_t, sysarg_t,
416 sysarg_t, sysarg_t, sysarg_t, ipc_call_t *);
417
418/*
419 * User-friendly wrappers for async_data_write_forward_fast().
420 */
421
422#define async_data_write_forward_0_0(exch, method, answer) \
423 async_data_write_forward_fast(exch, method, 0, 0, 0, 0, NULL)
424#define async_data_write_forward_0_1(exch, method, answer) \
425 async_data_write_forward_fast(exch, method, 0, 0, 0, 0, answer)
426#define async_data_write_forward_1_0(exch, method, arg1, answer) \
427 async_data_write_forward_fast(exch, method, arg1, 0, 0, 0, NULL)
428#define async_data_write_forward_1_1(exch, method, arg1, answer) \
429 async_data_write_forward_fast(exch, method, arg1, 0, 0, 0, answer)
430#define async_data_write_forward_2_0(exch, method, arg1, arg2, answer) \
431 async_data_write_forward_fast(exch, method, arg1, arg2, 0, 0, NULL)
432#define async_data_write_forward_2_1(exch, method, arg1, arg2, answer) \
433 async_data_write_forward_fast(exch, method, arg1, arg2, 0, 0, answer)
434#define async_data_write_forward_3_0(exch, method, arg1, arg2, arg3, answer) \
435 async_data_write_forward_fast(exch, method, arg1, arg2, arg3, 0, \
436 NULL)
437#define async_data_write_forward_3_1(exch, method, arg1, arg2, arg3, answer) \
438 async_data_write_forward_fast(exch, method, arg1, arg2, arg3, 0, \
439 answer)
440#define async_data_write_forward_4_0(exch, method, arg1, arg2, arg3, arg4, \
441 answer) \
442 async_data_write_forward_fast(exch, method, arg1, arg2, arg3, arg4, \
443 NULL)
444#define async_data_write_forward_4_1(exch, method, arg1, arg2, arg3, arg4, \
445 answer) \
446 async_data_write_forward_fast(exch, method, arg1, arg2, arg3, arg4, \
447 answer)
448
449extern errno_t async_data_write_start(async_exch_t *, const void *, size_t);
450extern bool async_data_write_receive(ipc_call_t *, size_t *);
451extern errno_t async_data_write_finalize(ipc_call_t *, void *, size_t);
452
453extern errno_t async_data_write_accept(void **, const bool, const size_t,
454 const size_t, const size_t, size_t *);
455extern void async_data_write_void(errno_t);
456
457extern errno_t async_data_write_forward_fast(async_exch_t *, sysarg_t, sysarg_t,
458 sysarg_t, sysarg_t, sysarg_t, ipc_call_t *);
459
460extern async_sess_t *async_callback_receive(exch_mgmt_t);
461extern async_sess_t *async_callback_receive_start(exch_mgmt_t, ipc_call_t *);
462
463extern errno_t async_state_change_start(async_exch_t *, sysarg_t, sysarg_t,
464 sysarg_t, async_exch_t *);
465extern bool async_state_change_receive(ipc_call_t *);
466extern errno_t async_state_change_finalize(ipc_call_t *, async_exch_t *);
467
468extern void *async_remote_state_acquire(async_sess_t *);
469extern void async_remote_state_update(async_sess_t *, void *);
470extern void async_remote_state_release(async_sess_t *);
471extern void async_remote_state_release_exchange(async_exch_t *);
472
473extern void *async_as_area_create(void *, size_t, unsigned int, async_sess_t *,
474 sysarg_t, sysarg_t, sysarg_t);
475
476errno_t async_spawn_notification_handler(void);
477
478#endif
479
480/** @}
481 */
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