| 1 | /*
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| 2 | * SPDX-FileCopyrightText: 2006 Ondrej Palkovsky
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| 3 | *
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| 4 | * SPDX-License-Identifier: BSD-3-Clause
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| 5 | */
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| 6 |
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| 7 | /** @addtogroup libc
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| 8 | * @{
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| 9 | */
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| 10 | /** @file
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| 11 | */
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| 12 |
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| 13 | #if ((defined(_LIBC_IPC_H_)) && (!defined(_LIBC_ASYNC_C_)))
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| 14 | #error Do not intermix low-level IPC interface and async framework
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| 15 | #endif
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| 16 |
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| 17 | #ifndef _LIBC_ASYNC_H_
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| 18 | #define _LIBC_ASYNC_H_
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| 19 |
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| 20 | #include <ipc/common.h>
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| 21 | #include <time.h>
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| 22 | #include <stdbool.h>
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| 23 | #include <abi/proc/task.h>
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| 24 | #include <abi/ddi/irq.h>
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| 25 | #include <abi/ipc/event.h>
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| 26 | #include <abi/ipc/interfaces.h>
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| 27 | #include <abi/cap.h>
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| 28 |
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| 29 | #include <_bits/__noreturn.h>
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| 30 |
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| 31 | typedef sysarg_t aid_t;
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| 32 | typedef sysarg_t port_id_t;
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| 33 |
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| 34 | typedef void *(*async_client_data_ctor_t)(void);
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| 35 | typedef void (*async_client_data_dtor_t)(void *);
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| 36 |
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| 37 | /** Port connection handler
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| 38 | *
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| 39 | * @param call Incoming call or NULL if connection initiated from inside
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| 40 | * using async_create_callback_port()
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| 41 | * @param arg Local argument.
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| 42 | *
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| 43 | */
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| 44 | typedef void (*async_port_handler_t)(ipc_call_t *, void *);
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| 45 |
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| 46 | /** Notification handler */
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| 47 | typedef void (*async_notification_handler_t)(ipc_call_t *, void *);
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| 48 |
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| 49 | /** Exchange management style
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| 50 | *
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| 51 | */
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| 52 | typedef enum {
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| 53 | /** No explicit exchange management
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| 54 | *
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| 55 | * Suitable for protocols which use a single
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| 56 | * IPC message per exchange only.
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| 57 | *
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| 58 | */
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| 59 | EXCHANGE_ATOMIC = 0,
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| 60 |
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| 61 | /** Exchange management via mutual exclusion
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| 62 | *
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| 63 | * Suitable for any kind of client/server communication,
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| 64 | * but can limit parallelism.
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| 65 | *
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| 66 | */
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| 67 | EXCHANGE_SERIALIZE = 1,
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| 68 |
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| 69 | /** Exchange management via phone cloning
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| 70 | *
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| 71 | * Suitable for servers which support client
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| 72 | * data tracking by task hashes and do not
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| 73 | * mind cloned phones.
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| 74 | *
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| 75 | */
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| 76 | EXCHANGE_PARALLEL = 2
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| 77 | } exch_mgmt_t;
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| 78 |
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| 79 | /** Forward declarations */
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| 80 | struct async_exch;
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| 81 | struct async_sess;
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| 82 |
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| 83 | typedef struct async_sess async_sess_t;
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| 84 | typedef struct async_exch async_exch_t;
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| 85 |
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| 86 | extern __noreturn void async_manager(void);
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| 87 |
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| 88 | extern bool async_get_call(ipc_call_t *);
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| 89 | extern bool async_get_call_timeout(ipc_call_t *, usec_t);
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| 90 |
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| 91 | extern aid_t async_send_0(async_exch_t *, sysarg_t, ipc_call_t *);
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| 92 | extern aid_t async_send_1(async_exch_t *, sysarg_t, sysarg_t, ipc_call_t *);
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| 93 | extern aid_t async_send_2(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 94 | ipc_call_t *);
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| 95 | extern aid_t async_send_3(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 96 | sysarg_t, ipc_call_t *);
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| 97 | extern aid_t async_send_4(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 98 | sysarg_t, sysarg_t, ipc_call_t *);
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| 99 | extern aid_t async_send_5(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 100 | sysarg_t, sysarg_t, sysarg_t, ipc_call_t *);
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| 101 |
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| 102 | extern void async_wait_for(aid_t, errno_t *);
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| 103 | extern errno_t async_wait_timeout(aid_t, errno_t *, usec_t);
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| 104 | extern void async_forget(aid_t);
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| 105 |
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| 106 | extern void async_set_client_data_constructor(async_client_data_ctor_t);
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| 107 | extern void async_set_client_data_destructor(async_client_data_dtor_t);
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| 108 | extern void *async_get_client_data(void);
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| 109 | extern void *async_get_client_data_by_id(task_id_t);
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| 110 | extern void async_put_client_data_by_id(task_id_t);
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| 111 |
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| 112 | extern errno_t async_create_port(iface_t, async_port_handler_t, void *,
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| 113 | port_id_t *);
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| 114 | extern void async_set_fallback_port_handler(async_port_handler_t, void *);
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| 115 | extern errno_t async_create_callback_port(async_exch_t *, iface_t, sysarg_t,
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| 116 | sysarg_t, async_port_handler_t, void *, port_id_t *);
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| 117 |
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| 118 | extern errno_t async_irq_subscribe(int, async_notification_handler_t, void *,
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| 119 | const irq_code_t *, cap_irq_handle_t *);
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| 120 | extern errno_t async_irq_unsubscribe(cap_irq_handle_t);
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| 121 |
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| 122 | extern errno_t async_event_subscribe(event_type_t, async_notification_handler_t,
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| 123 | void *);
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| 124 | extern errno_t async_event_task_subscribe(event_task_type_t,
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| 125 | async_notification_handler_t, void *);
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| 126 | extern errno_t async_event_unsubscribe(event_type_t);
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| 127 | extern errno_t async_event_task_unsubscribe(event_task_type_t);
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| 128 | extern errno_t async_event_unmask(event_type_t);
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| 129 | extern errno_t async_event_task_unmask(event_task_type_t);
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| 130 |
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| 131 | /*
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| 132 | * Wrappers for simple communication.
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| 133 | */
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| 134 |
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| 135 | extern void async_msg_0(async_exch_t *, sysarg_t);
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| 136 | extern void async_msg_1(async_exch_t *, sysarg_t, sysarg_t);
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| 137 | extern void async_msg_2(async_exch_t *, sysarg_t, sysarg_t, sysarg_t);
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| 138 | extern void async_msg_3(async_exch_t *, sysarg_t, sysarg_t, sysarg_t, sysarg_t);
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| 139 | extern void async_msg_4(async_exch_t *, sysarg_t, sysarg_t, sysarg_t, sysarg_t,
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| 140 | sysarg_t);
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| 141 | extern void async_msg_5(async_exch_t *, sysarg_t, sysarg_t, sysarg_t, sysarg_t,
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| 142 | sysarg_t, sysarg_t);
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| 143 |
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| 144 | /*
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| 145 | * Wrappers for answer routines.
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| 146 | */
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| 147 |
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| 148 | extern errno_t async_answer_0(ipc_call_t *, errno_t);
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| 149 | extern errno_t async_answer_1(ipc_call_t *, errno_t, sysarg_t);
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| 150 | extern errno_t async_answer_2(ipc_call_t *, errno_t, sysarg_t, sysarg_t);
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| 151 | extern errno_t async_answer_3(ipc_call_t *, errno_t, sysarg_t, sysarg_t,
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| 152 | sysarg_t);
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| 153 | extern errno_t async_answer_4(ipc_call_t *, errno_t, sysarg_t, sysarg_t,
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| 154 | sysarg_t, sysarg_t);
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| 155 | extern errno_t async_answer_5(ipc_call_t *, errno_t, sysarg_t, sysarg_t,
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| 156 | sysarg_t, sysarg_t, sysarg_t);
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| 157 |
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| 158 | /*
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| 159 | * Wrappers for forwarding routines.
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| 160 | */
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| 161 |
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| 162 | extern errno_t async_forward_0(ipc_call_t *, async_exch_t *, sysarg_t,
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| 163 | unsigned int);
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| 164 | extern errno_t async_forward_1(ipc_call_t *, async_exch_t *, sysarg_t,
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| 165 | sysarg_t, unsigned int);
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| 166 | extern errno_t async_forward_2(ipc_call_t *, async_exch_t *, sysarg_t,
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| 167 | sysarg_t, sysarg_t, unsigned int);
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| 168 | extern errno_t async_forward_3(ipc_call_t *, async_exch_t *, sysarg_t,
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| 169 | sysarg_t, sysarg_t, sysarg_t, unsigned int);
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| 170 | extern errno_t async_forward_4(ipc_call_t *, async_exch_t *, sysarg_t,
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| 171 | sysarg_t, sysarg_t, sysarg_t, sysarg_t, unsigned int);
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| 172 | extern errno_t async_forward_5(ipc_call_t *, async_exch_t *, sysarg_t,
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| 173 | sysarg_t, sysarg_t, sysarg_t, sysarg_t, sysarg_t, unsigned int);
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| 174 |
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| 175 | /*
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| 176 | * User-friendly wrappers for async_req_*_*().
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| 177 | * The functions are in the form async_req_m_n(), where m is the number of
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| 178 | * payload arguments and n is the number of return arguments.
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| 179 | */
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| 180 |
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| 181 | extern errno_t async_req_0_0(async_exch_t *, sysarg_t);
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| 182 | extern errno_t async_req_0_1(async_exch_t *, sysarg_t, sysarg_t *);
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| 183 | extern errno_t async_req_0_2(async_exch_t *, sysarg_t, sysarg_t *, sysarg_t *);
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| 184 | extern errno_t async_req_0_3(async_exch_t *, sysarg_t, sysarg_t *, sysarg_t *,
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| 185 | sysarg_t *);
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| 186 | extern errno_t async_req_0_4(async_exch_t *, sysarg_t, sysarg_t *, sysarg_t *,
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| 187 | sysarg_t *, sysarg_t *);
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| 188 | extern errno_t async_req_0_5(async_exch_t *, sysarg_t, sysarg_t *, sysarg_t *,
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| 189 | sysarg_t *, sysarg_t *, sysarg_t *);
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| 190 | extern errno_t async_req_1_0(async_exch_t *, sysarg_t, sysarg_t);
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| 191 | extern errno_t async_req_1_1(async_exch_t *, sysarg_t, sysarg_t, sysarg_t *);
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| 192 | extern errno_t async_req_1_2(async_exch_t *, sysarg_t, sysarg_t, sysarg_t *,
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| 193 | sysarg_t *);
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| 194 | extern errno_t async_req_1_3(async_exch_t *, sysarg_t, sysarg_t, sysarg_t *,
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| 195 | sysarg_t *, sysarg_t *);
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| 196 | extern errno_t async_req_1_4(async_exch_t *, sysarg_t, sysarg_t, sysarg_t *,
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| 197 | sysarg_t *, sysarg_t *, sysarg_t *);
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| 198 | extern errno_t async_req_1_5(async_exch_t *, sysarg_t, sysarg_t, sysarg_t *,
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| 199 | sysarg_t *, sysarg_t *, sysarg_t *, sysarg_t *);
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| 200 | extern errno_t async_req_2_0(async_exch_t *, sysarg_t, sysarg_t, sysarg_t);
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| 201 | extern errno_t async_req_2_1(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 202 | sysarg_t *);
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| 203 | extern errno_t async_req_2_2(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 204 | sysarg_t *, sysarg_t *);
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| 205 | extern errno_t async_req_2_3(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 206 | sysarg_t *, sysarg_t *, sysarg_t *);
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| 207 | extern errno_t async_req_2_4(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 208 | sysarg_t *, sysarg_t *, sysarg_t *, sysarg_t *);
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| 209 | extern errno_t async_req_2_5(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 210 | sysarg_t *, sysarg_t *, sysarg_t *, sysarg_t *, sysarg_t *);
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| 211 | extern errno_t async_req_3_0(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 212 | sysarg_t);
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| 213 | extern errno_t async_req_3_1(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 214 | sysarg_t, sysarg_t *);
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| 215 | extern errno_t async_req_3_2(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 216 | sysarg_t, sysarg_t *, sysarg_t *);
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| 217 | extern errno_t async_req_3_3(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 218 | sysarg_t, sysarg_t *, sysarg_t *, sysarg_t *);
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| 219 | extern errno_t async_req_3_4(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 220 | sysarg_t, sysarg_t *, sysarg_t *, sysarg_t *, sysarg_t *);
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| 221 | extern errno_t async_req_3_5(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 222 | sysarg_t, sysarg_t *, sysarg_t *, sysarg_t *, sysarg_t *, sysarg_t *);
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| 223 | extern errno_t async_req_4_0(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 224 | sysarg_t, sysarg_t);
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| 225 | extern errno_t async_req_4_1(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 226 | sysarg_t, sysarg_t, sysarg_t *);
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| 227 | extern errno_t async_req_4_2(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 228 | sysarg_t, sysarg_t, sysarg_t *, sysarg_t *);
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| 229 | extern errno_t async_req_4_3(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 230 | sysarg_t, sysarg_t, sysarg_t *, sysarg_t *, sysarg_t *);
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| 231 | extern errno_t async_req_4_4(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 232 | sysarg_t, sysarg_t, sysarg_t *, sysarg_t *, sysarg_t *, sysarg_t *);
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| 233 | extern errno_t async_req_4_5(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 234 | sysarg_t, sysarg_t, sysarg_t *, sysarg_t *, sysarg_t *, sysarg_t *,
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| 235 | sysarg_t *);
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| 236 | extern errno_t async_req_5_0(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 237 | sysarg_t, sysarg_t, sysarg_t);
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| 238 | extern errno_t async_req_5_1(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 239 | sysarg_t, sysarg_t, sysarg_t, sysarg_t *);
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| 240 | extern errno_t async_req_5_2(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 241 | sysarg_t, sysarg_t, sysarg_t, sysarg_t *, sysarg_t *);
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| 242 | extern errno_t async_req_5_3(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 243 | sysarg_t, sysarg_t, sysarg_t, sysarg_t *, sysarg_t *, sysarg_t *);
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| 244 | extern errno_t async_req_5_4(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 245 | sysarg_t, sysarg_t, sysarg_t, sysarg_t *, sysarg_t *, sysarg_t *,
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| 246 | sysarg_t *);
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| 247 | extern errno_t async_req_5_5(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,
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| 248 | sysarg_t, sysarg_t, sysarg_t, sysarg_t *, sysarg_t *, sysarg_t *,
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| 249 | sysarg_t *, sysarg_t *);
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| 250 |
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| 251 | extern errno_t async_accept_0(ipc_call_t *);
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| 252 | extern sysarg_t async_get_label(void);
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| 253 |
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| 254 | extern async_sess_t *async_connect_me_to(async_exch_t *, iface_t, sysarg_t,
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| 255 | sysarg_t, errno_t *);
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| 256 | extern async_sess_t *async_connect_me_to_blocking(async_exch_t *, iface_t,
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| 257 | sysarg_t, sysarg_t, errno_t *);
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| 258 | extern async_sess_t *async_connect_kbox(task_id_t, errno_t *);
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| 259 |
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| 260 | extern errno_t async_connect_to_me(async_exch_t *, iface_t, sysarg_t, sysarg_t);
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| 261 |
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| 262 | extern void async_hangup(async_sess_t *);
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| 263 |
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| 264 | extern async_exch_t *async_exchange_begin(async_sess_t *);
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| 265 | extern void async_exchange_end(async_exch_t *);
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| 266 |
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| 267 | /*
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| 268 | * FIXME These functions just work around problems with parallel exchange
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| 269 | * management. Proper solution needs to be implemented.
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| 270 | */
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| 271 | extern void async_sess_args_set(async_sess_t *, iface_t, sysarg_t, sysarg_t);
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| 272 |
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| 273 | /*
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| 274 | * User-friendly wrappers for async_share_in_start().
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| 275 | */
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| 276 |
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| 277 | extern errno_t async_share_in_start_0_0(async_exch_t *, size_t, void **);
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| 278 | extern errno_t async_share_in_start_0_1(async_exch_t *, size_t,
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| 279 | unsigned int *, void **);
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| 280 | extern errno_t async_share_in_start_1_0(async_exch_t *, size_t, sysarg_t,
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| 281 | void **);
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| 282 | extern errno_t async_share_in_start_1_1(async_exch_t *, size_t, sysarg_t,
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| 283 | unsigned int *, void **);
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| 284 |
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| 285 | extern bool async_share_in_receive(ipc_call_t *, size_t *);
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| 286 | extern errno_t async_share_in_finalize(ipc_call_t *, void *, unsigned int);
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| 287 |
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| 288 | extern errno_t async_share_out_start(async_exch_t *, void *, unsigned int);
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| 289 | extern bool async_share_out_receive(ipc_call_t *, size_t *, unsigned int *);
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| 290 | extern errno_t async_share_out_finalize(ipc_call_t *, void **);
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| 291 |
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| 292 | extern errno_t async_data_read_forward_0_0(async_exch_t *, sysarg_t);
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| 293 | extern errno_t async_data_read_forward_1_0(async_exch_t *, sysarg_t, sysarg_t);
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| 294 | extern errno_t async_data_read_forward_2_0(async_exch_t *, sysarg_t, sysarg_t,
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| 295 | sysarg_t);
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| 296 | extern errno_t async_data_read_forward_3_0(async_exch_t *, sysarg_t, sysarg_t,
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| 297 | sysarg_t, sysarg_t);
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| 298 | extern errno_t async_data_read_forward_4_0(async_exch_t *, sysarg_t, sysarg_t,
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| 299 | sysarg_t, sysarg_t, sysarg_t);
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| 300 |
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| 301 | extern errno_t async_data_read_forward_0_1(async_exch_t *, sysarg_t,
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| 302 | ipc_call_t *);
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| 303 | extern errno_t async_data_read_forward_1_1(async_exch_t *, sysarg_t, sysarg_t,
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| 304 | ipc_call_t *);
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| 305 | extern errno_t async_data_read_forward_2_1(async_exch_t *, sysarg_t, sysarg_t,
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| 306 | sysarg_t, ipc_call_t *);
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| 307 | extern errno_t async_data_read_forward_3_1(async_exch_t *, sysarg_t, sysarg_t,
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| 308 | sysarg_t, sysarg_t, ipc_call_t *);
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| 309 | extern errno_t async_data_read_forward_4_1(async_exch_t *, sysarg_t, sysarg_t,
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| 310 | sysarg_t, sysarg_t, sysarg_t, ipc_call_t *);
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| 311 |
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| 312 | extern aid_t async_data_read(async_exch_t *, void *, size_t, ipc_call_t *);
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| 313 | extern errno_t async_data_read_start(async_exch_t *, void *, size_t);
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| 314 | extern bool async_data_read_receive(ipc_call_t *, size_t *);
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| 315 | extern errno_t async_data_read_finalize(ipc_call_t *, const void *, size_t);
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| 316 |
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| 317 | extern errno_t async_data_write_forward_0_0(async_exch_t *, sysarg_t);
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| 318 | extern errno_t async_data_write_forward_1_0(async_exch_t *, sysarg_t, sysarg_t);
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| 319 | extern errno_t async_data_write_forward_2_0(async_exch_t *, sysarg_t, sysarg_t,
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| 320 | sysarg_t);
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| 321 | extern errno_t async_data_write_forward_3_0(async_exch_t *, sysarg_t, sysarg_t,
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| 322 | sysarg_t, sysarg_t);
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| 323 | extern errno_t async_data_write_forward_4_0(async_exch_t *, sysarg_t, sysarg_t,
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| 324 | sysarg_t, sysarg_t, sysarg_t);
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| 325 |
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| 326 | extern errno_t async_data_write_forward_0_1(async_exch_t *, sysarg_t,
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| 327 | ipc_call_t *);
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| 328 | extern errno_t async_data_write_forward_1_1(async_exch_t *, sysarg_t, sysarg_t,
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| 329 | ipc_call_t *);
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| 330 | extern errno_t async_data_write_forward_2_1(async_exch_t *, sysarg_t, sysarg_t,
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| 331 | sysarg_t, ipc_call_t *);
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| 332 | extern errno_t async_data_write_forward_3_1(async_exch_t *, sysarg_t, sysarg_t,
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| 333 | sysarg_t, sysarg_t, ipc_call_t *);
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| 334 | extern errno_t async_data_write_forward_4_1(async_exch_t *, sysarg_t, sysarg_t,
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| 335 | sysarg_t, sysarg_t, sysarg_t, ipc_call_t *);
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| 336 |
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| 337 | extern errno_t async_data_write_start(async_exch_t *, const void *, size_t);
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| 338 | extern bool async_data_write_receive(ipc_call_t *, size_t *);
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| 339 | extern errno_t async_data_write_finalize(ipc_call_t *, void *, size_t);
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| 340 |
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| 341 | extern errno_t async_data_write_accept(void **, const bool, const size_t,
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| 342 | const size_t, const size_t, size_t *);
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| 343 | extern void async_data_write_void(errno_t);
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| 344 |
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| 345 | extern async_sess_t *async_callback_receive(exch_mgmt_t);
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| 346 | extern async_sess_t *async_callback_receive_start(exch_mgmt_t, ipc_call_t *);
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| 347 |
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| 348 | extern errno_t async_state_change_start(async_exch_t *, sysarg_t, sysarg_t,
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| 349 | sysarg_t, async_exch_t *);
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| 350 | extern bool async_state_change_receive(ipc_call_t *);
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| 351 | extern errno_t async_state_change_finalize(ipc_call_t *, async_exch_t *);
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| 352 |
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| 353 | extern void *async_remote_state_acquire(async_sess_t *);
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| 354 | extern void async_remote_state_update(async_sess_t *, void *);
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| 355 | extern void async_remote_state_release(async_sess_t *);
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| 356 | extern void async_remote_state_release_exchange(async_exch_t *);
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| 357 |
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| 358 | extern void *async_as_area_create(void *, size_t, unsigned int, async_sess_t *,
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| 359 | sysarg_t, sysarg_t, sysarg_t);
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| 360 |
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| 361 | errno_t async_spawn_notification_handler(void);
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| 362 |
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| 363 | #endif
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| 364 |
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| 365 | /** @}
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| 366 | */
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