source: mainline/uspace/lib/c/include/async.h@ 229dff7b

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 229dff7b was 984a9ba, checked in by Martin Decky <martin@…>, 7 years ago

do not expose the call capability handler from the async framework

Keep the call capability handler encapsulated within the async framework
and do not expose it explicitly via its API. Use the pointer to
ipc_call_t as the sole object identifying an IPC call in the code that
uses the async framework.

This plugs a major leak in the abstraction and also simplifies both the
async framework (slightly) and all IPC servers.
  • Property mode set to 100644
File size: 19.6 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_usleep(suseconds_t);
147extern void async_sleep(unsigned int);
148
149extern void async_create_manager(void);
150extern void async_destroy_manager(void);
151
152extern void async_set_client_data_constructor(async_client_data_ctor_t);
153extern void async_set_client_data_destructor(async_client_data_dtor_t);
154extern void *async_get_client_data(void);
155extern void *async_get_client_data_by_id(task_id_t);
156extern void async_put_client_data_by_id(task_id_t);
157
158extern errno_t async_create_port(iface_t, async_port_handler_t, void *,
159 port_id_t *);
160extern void async_set_fallback_port_handler(async_port_handler_t, void *);
161extern errno_t async_create_callback_port(async_exch_t *, iface_t, sysarg_t,
162 sysarg_t, async_port_handler_t, void *, port_id_t *);
163
164extern errno_t async_irq_subscribe(int, async_notification_handler_t, void *,
165 const irq_code_t *, cap_irq_handle_t *);
166extern errno_t async_irq_unsubscribe(cap_irq_handle_t);
167
168extern errno_t async_event_subscribe(event_type_t, async_notification_handler_t,
169 void *);
170extern errno_t async_event_task_subscribe(event_task_type_t,
171 async_notification_handler_t, void *);
172extern errno_t async_event_unsubscribe(event_type_t);
173extern errno_t async_event_task_unsubscribe(event_task_type_t);
174extern errno_t async_event_unmask(event_type_t);
175extern errno_t async_event_task_unmask(event_task_type_t);
176
177/*
178 * Wrappers for simple communication.
179 */
180
181extern void async_msg_0(async_exch_t *, sysarg_t);
182extern void async_msg_1(async_exch_t *, sysarg_t, sysarg_t);
183extern void async_msg_2(async_exch_t *, sysarg_t, sysarg_t, sysarg_t);
184extern void async_msg_3(async_exch_t *, sysarg_t, sysarg_t, sysarg_t, sysarg_t);
185extern void async_msg_4(async_exch_t *, sysarg_t, sysarg_t, sysarg_t, sysarg_t,
186 sysarg_t);
187extern void async_msg_5(async_exch_t *, sysarg_t, sysarg_t, sysarg_t, sysarg_t,
188 sysarg_t, sysarg_t);
189
190/*
191 * Wrappers for answer routines.
192 */
193
194extern errno_t async_answer_0(ipc_call_t *, errno_t);
195extern errno_t async_answer_1(ipc_call_t *, errno_t, sysarg_t);
196extern errno_t async_answer_2(ipc_call_t *, errno_t, sysarg_t, sysarg_t);
197extern errno_t async_answer_3(ipc_call_t *, errno_t, sysarg_t, sysarg_t,
198 sysarg_t);
199extern errno_t async_answer_4(ipc_call_t *, errno_t, sysarg_t, sysarg_t,
200 sysarg_t, sysarg_t);
201extern errno_t async_answer_5(ipc_call_t *, errno_t, sysarg_t, sysarg_t,
202 sysarg_t, sysarg_t, sysarg_t);
203
204/*
205 * Wrappers for forwarding routines.
206 */
207
208extern errno_t async_forward_fast(ipc_call_t *, async_exch_t *, sysarg_t,
209 sysarg_t, sysarg_t, unsigned int);
210extern errno_t async_forward_slow(ipc_call_t *, async_exch_t *, sysarg_t,
211 sysarg_t, sysarg_t, sysarg_t, sysarg_t, sysarg_t, unsigned int);
212
213/*
214 * User-friendly wrappers for async_req_fast() and async_req_slow(). The macros
215 * are in the form async_req_m_n(), where m is the number of payload arguments
216 * and n is the number of return arguments. The macros decide between the fast
217 * and slow verion based on m.
218 */
219
220#define async_req_0_0(exch, method) \
221 async_req_fast(exch, method, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL)
222#define async_req_0_1(exch, method, r1) \
223 async_req_fast(exch, method, 0, 0, 0, 0, r1, NULL, NULL, NULL, NULL)
224#define async_req_0_2(exch, method, r1, r2) \
225 async_req_fast(exch, method, 0, 0, 0, 0, r1, r2, NULL, NULL, NULL)
226#define async_req_0_3(exch, method, r1, r2, r3) \
227 async_req_fast(exch, method, 0, 0, 0, 0, r1, r2, r3, NULL, NULL)
228#define async_req_0_4(exch, method, r1, r2, r3, r4) \
229 async_req_fast(exch, method, 0, 0, 0, 0, r1, r2, r3, r4, NULL)
230#define async_req_0_5(exch, method, r1, r2, r3, r4, r5) \
231 async_req_fast(exch, method, 0, 0, 0, 0, r1, r2, r3, r4, r5)
232
233#define async_req_1_0(exch, method, arg1) \
234 async_req_fast(exch, method, arg1, 0, 0, 0, NULL, NULL, NULL, NULL, \
235 NULL)
236#define async_req_1_1(exch, method, arg1, rc1) \
237 async_req_fast(exch, method, arg1, 0, 0, 0, rc1, NULL, NULL, NULL, \
238 NULL)
239#define async_req_1_2(exch, method, arg1, rc1, rc2) \
240 async_req_fast(exch, method, arg1, 0, 0, 0, rc1, rc2, NULL, NULL, \
241 NULL)
242#define async_req_1_3(exch, method, arg1, rc1, rc2, rc3) \
243 async_req_fast(exch, method, arg1, 0, 0, 0, rc1, rc2, rc3, NULL, \
244 NULL)
245#define async_req_1_4(exch, method, arg1, rc1, rc2, rc3, rc4) \
246 async_req_fast(exch, method, arg1, 0, 0, 0, rc1, rc2, rc3, rc4, \
247 NULL)
248#define async_req_1_5(exch, method, arg1, rc1, rc2, rc3, rc4, rc5) \
249 async_req_fast(exch, method, arg1, 0, 0, 0, rc1, rc2, rc3, rc4, \
250 rc5)
251
252#define async_req_2_0(exch, method, arg1, arg2) \
253 async_req_fast(exch, method, arg1, arg2, 0, 0, NULL, NULL, NULL, \
254 NULL, NULL)
255#define async_req_2_1(exch, method, arg1, arg2, rc1) \
256 async_req_fast(exch, method, arg1, arg2, 0, 0, rc1, NULL, NULL, \
257 NULL, NULL)
258#define async_req_2_2(exch, method, arg1, arg2, rc1, rc2) \
259 async_req_fast(exch, method, arg1, arg2, 0, 0, rc1, rc2, NULL, NULL, \
260 NULL)
261#define async_req_2_3(exch, method, arg1, arg2, rc1, rc2, rc3) \
262 async_req_fast(exch, method, arg1, arg2, 0, 0, rc1, rc2, rc3, NULL, \
263 NULL)
264#define async_req_2_4(exch, method, arg1, arg2, rc1, rc2, rc3, rc4) \
265 async_req_fast(exch, method, arg1, arg2, 0, 0, rc1, rc2, rc3, rc4, \
266 NULL)
267#define async_req_2_5(exch, method, arg1, arg2, rc1, rc2, rc3, rc4, rc5) \
268 async_req_fast(exch, method, arg1, arg2, 0, 0, rc1, rc2, rc3, rc4, \
269 rc5)
270
271#define async_req_3_0(exch, method, arg1, arg2, arg3) \
272 async_req_fast(exch, method, arg1, arg2, arg3, 0, NULL, NULL, NULL, \
273 NULL, NULL)
274#define async_req_3_1(exch, method, arg1, arg2, arg3, rc1) \
275 async_req_fast(exch, method, arg1, arg2, arg3, 0, rc1, NULL, NULL, \
276 NULL, NULL)
277#define async_req_3_2(exch, method, arg1, arg2, arg3, rc1, rc2) \
278 async_req_fast(exch, method, arg1, arg2, arg3, 0, rc1, rc2, NULL, \
279 NULL, NULL)
280#define async_req_3_3(exch, method, arg1, arg2, arg3, rc1, rc2, rc3) \
281 async_req_fast(exch, method, arg1, arg2, arg3, 0, rc1, rc2, rc3, \
282 NULL, NULL)
283#define async_req_3_4(exch, method, arg1, arg2, arg3, rc1, rc2, rc3, rc4) \
284 async_req_fast(exch, method, arg1, arg2, arg3, 0, rc1, rc2, rc3, \
285 rc4, NULL)
286#define async_req_3_5(exch, method, arg1, arg2, arg3, rc1, rc2, rc3, rc4, \
287 rc5) \
288 async_req_fast(exch, method, arg1, arg2, arg3, 0, rc1, rc2, rc3, \
289 rc4, rc5)
290
291#define async_req_4_0(exch, method, arg1, arg2, arg3, arg4) \
292 async_req_fast(exch, method, arg1, arg2, arg3, arg4, NULL, NULL, \
293 NULL, NULL, NULL)
294#define async_req_4_1(exch, method, arg1, arg2, arg3, arg4, rc1) \
295 async_req_fast(exch, method, arg1, arg2, arg3, arg4, rc1, NULL, \
296 NULL, NULL, NULL)
297#define async_req_4_2(exch, method, arg1, arg2, arg3, arg4, rc1, rc2) \
298 async_req_fast(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, NULL, \
299 NULL, NULL)
300#define async_req_4_3(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3) \
301 async_req_fast(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3, \
302 NULL, NULL)
303#define async_req_4_4(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3, \
304 rc4) \
305 async_req_fast(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3, \
306 rc4, NULL)
307#define async_req_4_5(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3, \
308 rc4, rc5) \
309 async_req_fast(exch, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3, \
310 rc4, rc5)
311
312#define async_req_5_0(exch, method, arg1, arg2, arg3, arg4, arg5) \
313 async_req_slow(exch, method, arg1, arg2, arg3, arg4, arg5, NULL, \
314 NULL, NULL, NULL, NULL)
315#define async_req_5_1(exch, method, arg1, arg2, arg3, arg4, arg5, rc1) \
316 async_req_slow(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, \
317 NULL, NULL, NULL, NULL)
318#define async_req_5_2(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2) \
319 async_req_slow(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
320 NULL, NULL, NULL)
321#define async_req_5_3(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
322 rc3) \
323 async_req_slow(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
324 rc3, NULL, NULL)
325#define async_req_5_4(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
326 rc3, rc4) \
327 async_req_slow(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
328 rc3, rc4, NULL)
329#define async_req_5_5(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
330 rc3, rc4, rc5) \
331 async_req_slow(exch, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
332 rc3, rc4, rc5)
333
334extern errno_t async_req_fast(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 *);
337extern errno_t async_req_slow(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
338 sysarg_t, sysarg_t, sysarg_t, sysarg_t *, sysarg_t *, sysarg_t *,
339 sysarg_t *, sysarg_t *);
340
341extern async_sess_t *async_connect_me_to(exch_mgmt_t, async_exch_t *, sysarg_t,
342 sysarg_t, sysarg_t);
343extern async_sess_t *async_connect_me_to_iface(async_exch_t *, iface_t,
344 sysarg_t, sysarg_t);
345extern async_sess_t *async_connect_me_to_blocking(exch_mgmt_t, async_exch_t *,
346 sysarg_t, sysarg_t, sysarg_t);
347extern async_sess_t *async_connect_me_to_blocking_iface(async_exch_t *, iface_t,
348 sysarg_t, sysarg_t);
349extern async_sess_t *async_connect_kbox(task_id_t);
350
351extern errno_t async_connect_to_me(async_exch_t *, sysarg_t, sysarg_t, sysarg_t);
352
353extern errno_t async_hangup(async_sess_t *);
354extern void async_poke(void);
355
356extern async_exch_t *async_exchange_begin(async_sess_t *);
357extern void async_exchange_end(async_exch_t *);
358
359/*
360 * FIXME These functions just work around problems with parallel exchange
361 * management. Proper solution needs to be implemented.
362 */
363void async_sess_args_set(async_sess_t *sess, sysarg_t, sysarg_t, sysarg_t);
364
365/*
366 * User-friendly wrappers for async_share_in_start().
367 */
368
369#define async_share_in_start_0_0(exch, size, dst) \
370 async_share_in_start(exch, size, 0, NULL, dst)
371#define async_share_in_start_0_1(exch, size, flags, dst) \
372 async_share_in_start(exch, size, 0, flags, dst)
373#define async_share_in_start_1_0(exch, size, arg, dst) \
374 async_share_in_start(exch, size, arg, NULL, dst)
375#define async_share_in_start_1_1(exch, size, arg, flags, dst) \
376 async_share_in_start(exch, size, arg, flags, dst)
377
378extern errno_t async_share_in_start(async_exch_t *, size_t, sysarg_t,
379 unsigned int *, void **);
380extern bool async_share_in_receive(ipc_call_t *, size_t *);
381extern errno_t async_share_in_finalize(ipc_call_t *, void *, unsigned int);
382
383extern errno_t async_share_out_start(async_exch_t *, void *, unsigned int);
384extern bool async_share_out_receive(ipc_call_t *, size_t *, unsigned int *);
385extern errno_t async_share_out_finalize(ipc_call_t *, void **);
386
387/*
388 * User-friendly wrappers for async_data_read_forward_fast().
389 */
390
391#define async_data_read_forward_0_0(exch, method, answer) \
392 async_data_read_forward_fast(exch, method, 0, 0, 0, 0, NULL)
393#define async_data_read_forward_0_1(exch, method, answer) \
394 async_data_read_forward_fast(exch, method, 0, 0, 0, 0, answer)
395#define async_data_read_forward_1_0(exch, method, arg1, answer) \
396 async_data_read_forward_fast(exch, method, arg1, 0, 0, 0, NULL)
397#define async_data_read_forward_1_1(exch, method, arg1, answer) \
398 async_data_read_forward_fast(exch, method, arg1, 0, 0, 0, answer)
399#define async_data_read_forward_2_0(exch, method, arg1, arg2, answer) \
400 async_data_read_forward_fast(exch, method, arg1, arg2, 0, 0, NULL)
401#define async_data_read_forward_2_1(exch, method, arg1, arg2, answer) \
402 async_data_read_forward_fast(exch, method, arg1, arg2, 0, 0, answer)
403#define async_data_read_forward_3_0(exch, method, arg1, arg2, arg3, answer) \
404 async_data_read_forward_fast(exch, method, arg1, arg2, arg3, 0, NULL)
405#define async_data_read_forward_3_1(exch, method, arg1, arg2, arg3, answer) \
406 async_data_read_forward_fast(exch, method, arg1, arg2, arg3, 0, \
407 answer)
408#define async_data_read_forward_4_0(exch, method, arg1, arg2, arg3, arg4, \
409 answer) \
410 async_data_read_forward_fast(exch, method, arg1, arg2, arg3, arg4, \
411 NULL)
412#define async_data_read_forward_4_1(exch, method, arg1, arg2, arg3, arg4, \
413 answer) \
414 async_data_read_forward_fast(exch, method, arg1, arg2, arg3, arg4, \
415 answer)
416
417extern aid_t async_data_read(async_exch_t *, void *, size_t, ipc_call_t *);
418extern errno_t async_data_read_start(async_exch_t *, void *, size_t);
419extern bool async_data_read_receive(ipc_call_t *, size_t *);
420extern errno_t async_data_read_finalize(ipc_call_t *, const void *, size_t);
421
422extern errno_t async_data_read_forward_fast(async_exch_t *, sysarg_t, sysarg_t,
423 sysarg_t, sysarg_t, sysarg_t, ipc_call_t *);
424
425/*
426 * User-friendly wrappers for async_data_write_forward_fast().
427 */
428
429#define async_data_write_forward_0_0(exch, method, answer) \
430 async_data_write_forward_fast(exch, method, 0, 0, 0, 0, NULL)
431#define async_data_write_forward_0_1(exch, method, answer) \
432 async_data_write_forward_fast(exch, method, 0, 0, 0, 0, answer)
433#define async_data_write_forward_1_0(exch, method, arg1, answer) \
434 async_data_write_forward_fast(exch, method, arg1, 0, 0, 0, NULL)
435#define async_data_write_forward_1_1(exch, method, arg1, answer) \
436 async_data_write_forward_fast(exch, method, arg1, 0, 0, 0, answer)
437#define async_data_write_forward_2_0(exch, method, arg1, arg2, answer) \
438 async_data_write_forward_fast(exch, method, arg1, arg2, 0, 0, NULL)
439#define async_data_write_forward_2_1(exch, method, arg1, arg2, answer) \
440 async_data_write_forward_fast(exch, method, arg1, arg2, 0, 0, answer)
441#define async_data_write_forward_3_0(exch, method, arg1, arg2, arg3, answer) \
442 async_data_write_forward_fast(exch, method, arg1, arg2, arg3, 0, \
443 NULL)
444#define async_data_write_forward_3_1(exch, method, arg1, arg2, arg3, answer) \
445 async_data_write_forward_fast(exch, method, arg1, arg2, arg3, 0, \
446 answer)
447#define async_data_write_forward_4_0(exch, method, arg1, arg2, arg3, arg4, \
448 answer) \
449 async_data_write_forward_fast(exch, method, arg1, arg2, arg3, arg4, \
450 NULL)
451#define async_data_write_forward_4_1(exch, method, arg1, arg2, arg3, arg4, \
452 answer) \
453 async_data_write_forward_fast(exch, method, arg1, arg2, arg3, arg4, \
454 answer)
455
456extern errno_t async_data_write_start(async_exch_t *, const void *, size_t);
457extern bool async_data_write_receive(ipc_call_t *, size_t *);
458extern errno_t async_data_write_finalize(ipc_call_t *, void *, size_t);
459
460extern errno_t async_data_write_accept(void **, const bool, const size_t,
461 const size_t, const size_t, size_t *);
462extern void async_data_write_void(errno_t);
463
464extern errno_t async_data_write_forward_fast(async_exch_t *, sysarg_t, sysarg_t,
465 sysarg_t, sysarg_t, sysarg_t, ipc_call_t *);
466
467extern async_sess_t *async_callback_receive(exch_mgmt_t);
468extern async_sess_t *async_callback_receive_start(exch_mgmt_t, ipc_call_t *);
469
470extern errno_t async_state_change_start(async_exch_t *, sysarg_t, sysarg_t,
471 sysarg_t, async_exch_t *);
472extern bool async_state_change_receive(ipc_call_t *);
473extern errno_t async_state_change_finalize(ipc_call_t *, async_exch_t *);
474
475extern void *async_remote_state_acquire(async_sess_t *);
476extern void async_remote_state_update(async_sess_t *, void *);
477extern void async_remote_state_release(async_sess_t *);
478extern void async_remote_state_release_exchange(async_exch_t *);
479
480extern void *async_as_area_create(void *, size_t, unsigned int, async_sess_t *,
481 sysarg_t, sysarg_t, sysarg_t);
482
483errno_t async_spawn_notification_handler(void);
484
485#endif
486
487/** @}
488 */
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