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| 1472 | palkovsky | 1 | /* |
| 2 | * Copyright (C) 2006 Ondrej Palkovsky |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 1394 | palkovsky | 29 | #ifndef _libc_ASYNC_H_ |
| 30 | #define _libc_ASYNC_H_ |
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| 31 | |||
| 32 | #include <ipc/ipc.h> |
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| 1407 | palkovsky | 33 | #include <psthread.h> |
| 1449 | palkovsky | 34 | #include <sys/time.h> |
| 1463 | palkovsky | 35 | #include <atomic.h> |
| 1394 | palkovsky | 36 | |
| 1427 | palkovsky | 37 | typedef ipc_callid_t aid_t; |
| 1490 | palkovsky | 38 | typedef void (*async_client_conn_t)(ipc_callid_t callid, ipc_call_t *call); |
| 1427 | palkovsky | 39 | |
| 1394 | palkovsky | 40 | int async_manager(void); |
| 1500 | palkovsky | 41 | ipc_callid_t async_get_call_timeout(ipc_call_t *call, suseconds_t usecs); |
| 42 | static inline ipc_callid_t async_get_call(ipc_call_t *data) |
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| 43 | { |
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| 44 | return async_get_call_timeout(data, 0); |
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| 45 | } |
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| 1394 | palkovsky | 46 | |
| 1427 | palkovsky | 47 | aid_t async_send_2(int phoneid, ipcarg_t method, ipcarg_t arg1, ipcarg_t arg2, |
| 48 | ipc_call_t *dataptr); |
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| 1547 | palkovsky | 49 | aid_t async_send_3(int phoneid, ipcarg_t method, ipcarg_t arg1, ipcarg_t arg2, |
| 50 | ipcarg_t arg3, ipc_call_t *dataptr); |
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| 1427 | palkovsky | 51 | void async_wait_for(aid_t amsgid, ipcarg_t *result); |
| 1441 | palkovsky | 52 | int async_wait_timeout(aid_t amsgid, ipcarg_t *retval, suseconds_t timeout); |
| 1464 | palkovsky | 53 | |
| 54 | /** Pseudo-synchronous message sending |
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| 55 | * |
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| 56 | * Send message through IPC, wait in the event loop, until it is received |
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| 57 | * |
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| 58 | * @return Return code of message |
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| 59 | */ |
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| 60 | static inline ipcarg_t sync_send_2(int phoneid, ipcarg_t method, ipcarg_t arg1, ipcarg_t arg2, ipcarg_t *r1, ipcarg_t *r2) |
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| 61 | { |
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| 62 | ipc_call_t result; |
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| 63 | ipcarg_t rc; |
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| 64 | |||
| 65 | aid_t eid = async_send_2(phoneid, method, arg1, arg2, &result); |
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| 66 | async_wait_for(eid, &rc); |
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| 67 | if (r1) |
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| 68 | *r1 = IPC_GET_ARG1(result); |
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| 69 | if (r2) |
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| 70 | *r2 = IPC_GET_ARG2(result); |
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| 71 | return rc; |
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| 72 | } |
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| 1552 | palkovsky | 73 | #define sync_send(phoneid, method, arg1, r1) sync_send_2(phoneid, method, arg1, 0, r1, 0) |
| 74 | |||
| 1547 | palkovsky | 75 | static inline ipcarg_t sync_send_3(int phoneid, ipcarg_t method, ipcarg_t arg1, |
| 76 | ipcarg_t arg2, ipcarg_t arg3, ipcarg_t *r1, |
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| 77 | ipcarg_t *r2, ipcarg_t *r3) |
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| 78 | { |
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| 79 | ipc_call_t result; |
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| 80 | ipcarg_t rc; |
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| 1464 | palkovsky | 81 | |
| 1547 | palkovsky | 82 | aid_t eid = async_send_3(phoneid, method, arg1, arg2, arg3, &result); |
| 83 | async_wait_for(eid, &rc); |
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| 84 | if (r1) |
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| 85 | *r1 = IPC_GET_ARG1(result); |
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| 86 | if (r2) |
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| 87 | *r2 = IPC_GET_ARG2(result); |
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| 88 | if (r3) |
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| 89 | *r3 = IPC_GET_ARG3(result); |
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| 90 | return rc; |
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| 91 | } |
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| 1464 | palkovsky | 92 | |
| 1547 | palkovsky | 93 | |
| 1452 | palkovsky | 94 | pstid_t async_new_connection(ipcarg_t in_phone_hash,ipc_callid_t callid, |
| 95 | ipc_call_t *call, |
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| 96 | void (*cthread)(ipc_callid_t,ipc_call_t *)); |
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| 97 | void async_usleep(suseconds_t timeout); |
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| 1464 | palkovsky | 98 | void async_create_manager(void); |
| 99 | void async_destroy_manager(void); |
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| 1490 | palkovsky | 100 | void async_set_client_connection(async_client_conn_t conn); |
| 1596 | palkovsky | 101 | void async_set_interrupt_received(async_client_conn_t conn); |
| 1464 | palkovsky | 102 | int _async_init(void); |
| 1427 | palkovsky | 103 | |
| 1394 | palkovsky | 104 | |
| 1463 | palkovsky | 105 | extern atomic_t async_futex; |
| 106 | |||
| 1394 | palkovsky | 107 | #endif |