source: mainline/uspace/lib/c/include/async.h@ ca62f86

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since ca62f86 was d768d4c8, checked in by Jan Vesely <jano.vesely@…>, 12 years ago

libc: Add call preserving data read handlers.

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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 <task.h>
48
49typedef ipc_callid_t aid_t;
50
51typedef void *(*async_client_data_ctor_t)(void);
52typedef void (*async_client_data_dtor_t)(void *);
53
54/** Client connection handler
55 *
56 * @param callid ID of incoming call or 0 if connection initiated from
57 * inside using async_connect_to_me()
58 * @param call Incoming call or 0 if connection initiated from inside
59 * @param arg Local argument passed from async_new_connection() or
60 * async_connect_to_me()
61 */
62typedef void (*async_client_conn_t)(ipc_callid_t, ipc_call_t *, void *);
63
64/** Interrupt handler */
65typedef void (*async_interrupt_handler_t)(ipc_callid_t, ipc_call_t *);
66
67/** Exchange management style
68 *
69 */
70typedef enum {
71 /** No explicit exchange management
72 *
73 * Suitable for protocols which use a single
74 * IPC message per exchange only.
75 *
76 */
77 EXCHANGE_ATOMIC = 0,
78
79 /** Exchange management via phone cloning
80 *
81 * Suitable for servers which support client
82 * data tracking by task hashes and do not
83 * mind cloned phones.
84 *
85 */
86 EXCHANGE_PARALLEL,
87
88 /** Exchange management via mutual exclusion
89 *
90 * Suitable for any kind of client/server communication,
91 * but can limit parallelism.
92 *
93 */
94 EXCHANGE_SERIALIZE
95} exch_mgmt_t;
96
97/** Forward declarations */
98struct async_exch;
99struct async_sess;
100
101typedef struct async_sess async_sess_t;
102typedef struct async_exch async_exch_t;
103
104extern atomic_t threads_in_ipc_wait;
105
106#define async_manager() \
107 fibril_switch(FIBRIL_TO_MANAGER)
108
109#define async_get_call(data) \
110 async_get_call_timeout(data, 0)
111
112extern ipc_callid_t async_get_call_timeout(ipc_call_t *, suseconds_t);
113
114/*
115 * User-friendly wrappers for async_send_fast() and async_send_slow(). The
116 * macros are in the form async_send_m(), where m denotes the number of payload
117 * arguments. Each macros chooses between the fast and the slow version based
118 * on m.
119 */
120
121#define async_send_0(exch, method, dataptr) \
122 async_send_fast(exch, method, 0, 0, 0, 0, dataptr)
123#define async_send_1(exch, method, arg1, dataptr) \
124 async_send_fast(exch, method, arg1, 0, 0, 0, dataptr)
125#define async_send_2(exch, method, arg1, arg2, dataptr) \
126 async_send_fast(exch, method, arg1, arg2, 0, 0, dataptr)
127#define async_send_3(exch, method, arg1, arg2, arg3, dataptr) \
128 async_send_fast(exch, method, arg1, arg2, arg3, 0, dataptr)
129#define async_send_4(exch, method, arg1, arg2, arg3, arg4, dataptr) \
130 async_send_fast(exch, method, arg1, arg2, arg3, arg4, dataptr)
131#define async_send_5(exch, method, arg1, arg2, arg3, arg4, arg5, dataptr) \
132 async_send_slow(exch, method, arg1, arg2, arg3, arg4, arg5, dataptr)
133
134extern aid_t async_send_fast(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
135 sysarg_t, sysarg_t, ipc_call_t *);
136extern aid_t async_send_slow(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
137 sysarg_t, sysarg_t, sysarg_t, ipc_call_t *);
138
139extern void async_wait_for(aid_t, sysarg_t *);
140extern int async_wait_timeout(aid_t, sysarg_t *, suseconds_t);
141extern void async_forget(aid_t);
142
143extern fid_t async_new_connection(task_id_t, sysarg_t, ipc_callid_t,
144 ipc_call_t *, async_client_conn_t, void *);
145
146extern void async_usleep(suseconds_t);
147extern void async_create_manager(void);
148extern void async_destroy_manager(void);
149
150extern void async_set_client_data_constructor(async_client_data_ctor_t);
151extern void async_set_client_data_destructor(async_client_data_dtor_t);
152extern void *async_get_client_data(void);
153extern void *async_get_client_data_by_id(task_id_t);
154extern void async_put_client_data_by_id(task_id_t);
155
156extern void async_set_client_connection(async_client_conn_t);
157extern void async_set_interrupt_received(async_interrupt_handler_t);
158extern void async_set_interrupt_handler_stack_size(size_t);
159
160/*
161 * Wrappers for simple communication.
162 */
163
164extern void async_msg_0(async_exch_t *, sysarg_t);
165extern void async_msg_1(async_exch_t *, sysarg_t, sysarg_t);
166extern void async_msg_2(async_exch_t *, sysarg_t, sysarg_t, sysarg_t);
167extern void async_msg_3(async_exch_t *, sysarg_t, sysarg_t, sysarg_t, sysarg_t);
168extern void async_msg_4(async_exch_t *, sysarg_t, sysarg_t, sysarg_t, sysarg_t,
169 sysarg_t);
170extern void async_msg_5(async_exch_t *, sysarg_t, sysarg_t, sysarg_t, sysarg_t,
171 sysarg_t, sysarg_t);
172
173/*
174 * Wrappers for answer routines.
175 */
176
177extern sysarg_t async_answer_0(ipc_callid_t, sysarg_t);
178extern sysarg_t async_answer_1(ipc_callid_t, sysarg_t, sysarg_t);
179extern sysarg_t async_answer_2(ipc_callid_t, sysarg_t, sysarg_t, sysarg_t);
180extern sysarg_t async_answer_3(ipc_callid_t, sysarg_t, sysarg_t, sysarg_t,
181 sysarg_t);
182extern sysarg_t async_answer_4(ipc_callid_t, sysarg_t, sysarg_t, sysarg_t,
183 sysarg_t, sysarg_t);
184extern sysarg_t async_answer_5(ipc_callid_t, sysarg_t, sysarg_t, sysarg_t,
185 sysarg_t, sysarg_t, sysarg_t);
186
187/*
188 * Wrappers for forwarding routines.
189 */
190
191extern int async_forward_fast(ipc_callid_t, async_exch_t *, sysarg_t, sysarg_t,
192 sysarg_t, unsigned int);
193extern int async_forward_slow(ipc_callid_t, async_exch_t *, sysarg_t, sysarg_t,
194 sysarg_t, sysarg_t, sysarg_t, sysarg_t, unsigned int);
195
196/*
197 * User-friendly wrappers for async_req_fast() and async_req_slow(). The macros
198 * are in the form async_req_m_n(), where m is the number of payload arguments
199 * and n is the number of return arguments. The macros decide between the fast
200 * and slow verion based on m.
201 */
202
203#define async_req_0_0(exch, method) \
204 async_req_fast(exch, method, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL)
205#define async_req_0_1(exch, method, r1) \
206 async_req_fast(exch, method, 0, 0, 0, 0, r1, NULL, NULL, NULL, NULL)
207#define async_req_0_2(exch, method, r1, r2) \
208 async_req_fast(exch, method, 0, 0, 0, 0, r1, r2, NULL, NULL, NULL)
209#define async_req_0_3(exch, method, r1, r2, r3) \
210 async_req_fast(exch, method, 0, 0, 0, 0, r1, r2, r3, NULL, NULL)
211#define async_req_0_4(exch, method, r1, r2, r3, r4) \
212 async_req_fast(exch, method, 0, 0, 0, 0, r1, r2, r3, r4, NULL)
213#define async_req_0_5(exch, method, r1, r2, r3, r4, r5) \
214 async_req_fast(exch, method, 0, 0, 0, 0, r1, r2, r3, r4, r5)
215
216#define async_req_1_0(exch, method, arg1) \
217 async_req_fast(exch, method, arg1, 0, 0, 0, NULL, NULL, NULL, NULL, \
218 NULL)
219#define async_req_1_1(exch, method, arg1, rc1) \
220 async_req_fast(exch, method, arg1, 0, 0, 0, rc1, NULL, NULL, NULL, \
221 NULL)
222#define async_req_1_2(exch, method, arg1, rc1, rc2) \
223 async_req_fast(exch, method, arg1, 0, 0, 0, rc1, rc2, NULL, NULL, \
224 NULL)
225#define async_req_1_3(exch, method, arg1, rc1, rc2, rc3) \
226 async_req_fast(exch, method, arg1, 0, 0, 0, rc1, rc2, rc3, NULL, \
227 NULL)
228#define async_req_1_4(exch, method, arg1, rc1, rc2, rc3, rc4) \
229 async_req_fast(exch, method, arg1, 0, 0, 0, rc1, rc2, rc3, rc4, \
230 NULL)
231#define async_req_1_5(exch, method, arg1, rc1, rc2, rc3, rc4, rc5) \
232 async_req_fast(exch, method, arg1, 0, 0, 0, rc1, rc2, rc3, rc4, \
233 rc5)
234
235#define async_req_2_0(exch, method, arg1, arg2) \
236 async_req_fast(exch, method, arg1, arg2, 0, 0, NULL, NULL, NULL, \
237 NULL, NULL)
238#define async_req_2_1(exch, method, arg1, arg2, rc1) \
239 async_req_fast(exch, method, arg1, arg2, 0, 0, rc1, NULL, NULL, \
240 NULL, NULL)
241#define async_req_2_2(exch, method, arg1, arg2, rc1, rc2) \
242 async_req_fast(exch, method, arg1, arg2, 0, 0, rc1, rc2, NULL, NULL, \
243 NULL)
244#define async_req_2_3(exch, method, arg1, arg2, rc1, rc2, rc3) \
245 async_req_fast(exch, method, arg1, arg2, 0, 0, rc1, rc2, rc3, NULL, \
246 NULL)
247#define async_req_2_4(exch, method, arg1, arg2, rc1, rc2, rc3, rc4) \
248 async_req_fast(exch, method, arg1, arg2, 0, 0, rc1, rc2, rc3, rc4, \
249 NULL)
250#define async_req_2_5(exch, method, arg1, arg2, rc1, rc2, rc3, rc4, rc5) \
251 async_req_fast(exch, method, arg1, arg2, 0, 0, rc1, rc2, rc3, rc4, \
252 rc5)
253
254#define async_req_3_0(exch, method, arg1, arg2, arg3) \
255 async_req_fast(exch, method, arg1, arg2, arg3, 0, NULL, NULL, NULL, \
256 NULL, NULL)
257#define async_req_3_1(exch, method, arg1, arg2, arg3, rc1) \
258 async_req_fast(exch, method, arg1, arg2, arg3, 0, rc1, NULL, NULL, \
259 NULL, NULL)
260#define async_req_3_2(exch, method, arg1, arg2, arg3, rc1, rc2) \
261 async_req_fast(exch, method, arg1, arg2, arg3, 0, rc1, rc2, NULL, \
262 NULL, NULL)
263#define async_req_3_3(exch, method, arg1, arg2, arg3, rc1, rc2, rc3) \
264 async_req_fast(exch, method, arg1, arg2, arg3, 0, rc1, rc2, rc3, \
265 NULL, NULL)
266#define async_req_3_4(exch, method, arg1, arg2, arg3, rc1, rc2, rc3, rc4) \
267 async_req_fast(exch, method, arg1, arg2, arg3, 0, rc1, rc2, rc3, \
268 rc4, NULL)
269#define async_req_3_5(exch, method, arg1, arg2, arg3, rc1, rc2, rc3, rc4, \
270 rc5) \
271 async_req_fast(exch, method, arg1, arg2, arg3, 0, rc1, rc2, rc3, \
272 rc4, rc5)
273
274#define async_req_4_0(exch, method, arg1, arg2, arg3, arg4) \
275 async_req_fast(exch, method, arg1, arg2, arg3, arg4, NULL, NULL, \
276 NULL, NULL, NULL)
277#define async_req_4_1(exch, method, arg1, arg2, arg3, arg4, rc1) \
278 async_req_fast(exch, method, arg1, arg2, arg3, arg4, rc1, NULL, \
279 NULL, NULL, NULL)
280#define async_req_4_2(exch, method, arg1, arg2, arg3, arg4, rc1, rc2) \
281 async_req_fast(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, NULL, \
282 NULL, NULL)
283#define async_req_4_3(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3) \
284 async_req_fast(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3, \
285 NULL, NULL)
286#define async_req_4_4(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3, \
287 rc4) \
288 async_req_fast(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3, \
289 rc4, NULL)
290#define async_req_4_5(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3, \
291 rc4, rc5) \
292 async_req_fast(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3, \
293 rc4, rc5)
294
295#define async_req_5_0(exch, method, arg1, arg2, arg3, arg4, arg5) \
296 async_req_slow(exch, method, arg1, arg2, arg3, arg4, arg5, NULL, \
297 NULL, NULL, NULL, NULL)
298#define async_req_5_1(exch, method, arg1, arg2, arg3, arg4, arg5, rc1) \
299 async_req_slow(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, \
300 NULL, NULL, NULL, NULL)
301#define async_req_5_2(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2) \
302 async_req_slow(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
303 NULL, NULL, NULL)
304#define async_req_5_3(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
305 rc3) \
306 async_req_slow(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
307 rc3, NULL, NULL)
308#define async_req_5_4(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
309 rc3, rc4) \
310 async_req_slow(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
311 rc3, rc4, NULL)
312#define async_req_5_5(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
313 rc3, rc4, rc5) \
314 async_req_slow(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
315 rc3, rc4, rc5)
316
317extern sysarg_t async_req_fast(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
318 sysarg_t, sysarg_t, sysarg_t *, sysarg_t *, sysarg_t *, sysarg_t *,
319 sysarg_t *);
320extern sysarg_t async_req_slow(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
321 sysarg_t, sysarg_t, sysarg_t, sysarg_t *, sysarg_t *, sysarg_t *,
322 sysarg_t *, sysarg_t *);
323
324extern async_sess_t *async_clone_establish(exch_mgmt_t, async_exch_t *);
325extern async_sess_t *async_connect_me_to(exch_mgmt_t, async_exch_t *, sysarg_t,
326 sysarg_t, sysarg_t);
327extern async_sess_t *async_connect_me_to_blocking(exch_mgmt_t, async_exch_t *,
328 sysarg_t, sysarg_t, sysarg_t);
329extern async_sess_t *async_connect_kbox(task_id_t);
330
331extern int async_connect_to_me(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
332 async_client_conn_t, void *);
333
334extern int async_hangup(async_sess_t *);
335extern void async_poke(void);
336
337extern async_exch_t *async_exchange_begin(async_sess_t *);
338extern void async_exchange_end(async_exch_t *);
339
340/*
341 * FIXME These functions just work around problems with parallel exchange
342 * management. Proper solution needs to be implemented.
343 */
344void async_sess_args_set(async_sess_t *sess, sysarg_t, sysarg_t, sysarg_t);
345
346/*
347 * User-friendly wrappers for async_share_in_start().
348 */
349
350#define async_share_in_start_0_0(exch, size, dst) \
351 async_share_in_start(exch, size, 0, NULL, dst)
352#define async_share_in_start_0_1(exch, size, flags, dst) \
353 async_share_in_start(exch, size, 0, flags, dst)
354#define async_share_in_start_1_0(exch, size, arg, dst) \
355 async_share_in_start(exch, size, arg, NULL, dst)
356#define async_share_in_start_1_1(exch, size, arg, flags, dst) \
357 async_share_in_start(exch, size, arg, flags, dst)
358
359extern int async_share_in_start(async_exch_t *, size_t, sysarg_t,
360 unsigned int *, void **);
361extern bool async_share_in_receive(ipc_callid_t *, size_t *);
362extern int async_share_in_finalize(ipc_callid_t, void *, unsigned int);
363
364extern int async_share_out_start(async_exch_t *, void *, unsigned int);
365extern bool async_share_out_receive(ipc_callid_t *, size_t *, unsigned int *);
366extern int async_share_out_finalize(ipc_callid_t, void **);
367
368/*
369 * User-friendly wrappers for async_data_read_forward_fast().
370 */
371
372#define async_data_read_forward_0_0(exch, method, answer) \
373 async_data_read_forward_fast(exch, method, 0, 0, 0, 0, NULL)
374#define async_data_read_forward_0_1(exch, method, answer) \
375 async_data_read_forward_fast(exch, method, 0, 0, 0, 0, answer)
376#define async_data_read_forward_1_0(exch, method, arg1, answer) \
377 async_data_read_forward_fast(exch, method, arg1, 0, 0, 0, NULL)
378#define async_data_read_forward_1_1(exch, method, arg1, answer) \
379 async_data_read_forward_fast(exch, method, arg1, 0, 0, 0, answer)
380#define async_data_read_forward_2_0(exch, method, arg1, arg2, answer) \
381 async_data_read_forward_fast(exch, method, arg1, arg2, 0, 0, NULL)
382#define async_data_read_forward_2_1(exch, method, arg1, arg2, answer) \
383 async_data_read_forward_fast(exch, method, arg1, arg2, 0, 0, answer)
384#define async_data_read_forward_3_0(exch, method, arg1, arg2, arg3, answer) \
385 async_data_read_forward_fast(exch, method, arg1, arg2, arg3, 0, NULL)
386#define async_data_read_forward_3_1(exch, method, arg1, arg2, arg3, answer) \
387 async_data_read_forward_fast(exch, method, arg1, arg2, arg3, 0, \
388 answer)
389#define async_data_read_forward_4_0(exch, method, arg1, arg2, arg3, arg4, \
390 answer) \
391 async_data_read_forward_fast(exch, method, arg1, arg2, arg3, arg4, \
392 NULL)
393#define async_data_read_forward_4_1(exch, method, arg1, arg2, arg3, arg4, \
394 answer) \
395 async_data_read_forward_fast(exch, method, arg1, arg2, arg3, arg4, \
396 answer)
397
398extern aid_t async_data_read(async_exch_t *, void *, size_t, ipc_call_t *);
399extern int async_data_read_start(async_exch_t *, void *, size_t);
400extern bool async_data_read_receive(ipc_callid_t *, size_t *);
401extern bool async_data_read_receive_call(ipc_callid_t *, ipc_call_t *, size_t *);
402extern int async_data_read_finalize(ipc_callid_t, const void *, size_t);
403
404extern int async_data_read_forward_fast(async_exch_t *, sysarg_t, sysarg_t,
405 sysarg_t, sysarg_t, sysarg_t, ipc_call_t *);
406
407/*
408 * User-friendly wrappers for async_data_write_forward_fast().
409 */
410
411#define async_data_write_forward_0_0(exch, method, answer) \
412 async_data_write_forward_fast(exch, method, 0, 0, 0, 0, NULL)
413#define async_data_write_forward_0_1(exch, method, answer) \
414 async_data_write_forward_fast(exch, method, 0, 0, 0, 0, answer)
415#define async_data_write_forward_1_0(exch, method, arg1, answer) \
416 async_data_write_forward_fast(exch, method, arg1, 0, 0, 0, NULL)
417#define async_data_write_forward_1_1(exch, method, arg1, answer) \
418 async_data_write_forward_fast(exch, method, arg1, 0, 0, 0, answer)
419#define async_data_write_forward_2_0(exch, method, arg1, arg2, answer) \
420 async_data_write_forward_fast(exch, method, arg1, arg2, 0, 0, NULL)
421#define async_data_write_forward_2_1(exch, method, arg1, arg2, answer) \
422 async_data_write_forward_fast(exch, method, arg1, arg2, 0, 0, answer)
423#define async_data_write_forward_3_0(exch, method, arg1, arg2, arg3, answer) \
424 async_data_write_forward_fast(exch, method, arg1, arg2, arg3, 0, \
425 NULL)
426#define async_data_write_forward_3_1(exch, method, arg1, arg2, arg3, answer) \
427 async_data_write_forward_fast(exch, method, arg1, arg2, arg3, 0, \
428 answer)
429#define async_data_write_forward_4_0(exch, method, arg1, arg2, arg3, arg4, \
430 answer) \
431 async_data_write_forward_fast(exch, method, arg1, arg2, arg3, arg4, \
432 NULL)
433#define async_data_write_forward_4_1(exch, method, arg1, arg2, arg3, arg4, \
434 answer) \
435 async_data_write_forward_fast(exch, method, arg1, arg2, arg3, arg4, \
436 answer)
437
438extern int async_data_write_start(async_exch_t *, const void *, size_t);
439extern bool async_data_write_receive(ipc_callid_t *, size_t *);
440extern bool async_data_write_receive_call(ipc_callid_t *, ipc_call_t *, size_t *);
441extern int async_data_write_finalize(ipc_callid_t, void *, size_t);
442
443extern int async_data_write_accept(void **, const bool, const size_t,
444 const size_t, const size_t, size_t *);
445extern void async_data_write_void(sysarg_t);
446
447extern int async_data_write_forward_fast(async_exch_t *, sysarg_t, sysarg_t,
448 sysarg_t, sysarg_t, sysarg_t, ipc_call_t *);
449
450extern int async_exchange_clone(async_exch_t *, async_exch_t *);
451extern async_sess_t *async_clone_receive(exch_mgmt_t);
452extern async_sess_t *async_callback_receive(exch_mgmt_t);
453extern async_sess_t *async_callback_receive_start(exch_mgmt_t, ipc_call_t *);
454
455extern int async_state_change_start(async_exch_t *, sysarg_t, sysarg_t,
456 sysarg_t, async_exch_t *);
457extern bool async_state_change_receive(ipc_callid_t *, sysarg_t *, sysarg_t *,
458 sysarg_t *);
459extern int async_state_change_finalize(ipc_callid_t, async_exch_t *);
460
461extern void *async_remote_state_acquire(async_sess_t *);
462extern void async_remote_state_update(async_sess_t *, void *);
463extern void async_remote_state_release(async_sess_t *);
464extern void async_remote_state_release_exchange(async_exch_t *);
465
466#endif
467
468/** @}
469 */
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