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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. #ifndef _libc_ASYNC_H_
  30. #define _libc_ASYNC_H_
  31.  
  32. #include <ipc/ipc.h>
  33. #include <psthread.h>
  34. #include <sys/time.h>
  35. #include <atomic.h>
  36.  
  37. typedef ipc_callid_t aid_t;
  38.  
  39. int async_manager(void);
  40. ipc_callid_t async_get_call(ipc_call_t *data);
  41.  
  42.  
  43. aid_t async_send_2(int phoneid, ipcarg_t method, ipcarg_t arg1, ipcarg_t arg2,
  44.            ipc_call_t *dataptr);
  45. void async_wait_for(aid_t amsgid, ipcarg_t *result);
  46. int async_wait_timeout(aid_t amsgid, ipcarg_t *retval, suseconds_t timeout);
  47.  
  48. /** Pseudo-synchronous message sending
  49.  *
  50.  * Send message through IPC, wait in the event loop, until it is received
  51.  *
  52.  * @return Return code of message
  53.  */
  54. static inline ipcarg_t sync_send_2(int phoneid, ipcarg_t method, ipcarg_t arg1, ipcarg_t arg2, ipcarg_t *r1, ipcarg_t *r2)
  55. {
  56.     ipc_call_t result;
  57.     ipcarg_t rc;
  58.  
  59.     aid_t eid = async_send_2(phoneid, method, arg1, arg2, &result);
  60.     async_wait_for(eid, &rc);
  61.     if (r1)
  62.         *r1 = IPC_GET_ARG1(result);
  63.     if (r2)
  64.         *r2 = IPC_GET_ARG2(result);
  65.     return rc;
  66. }
  67.  
  68.  
  69. pstid_t async_new_connection(ipcarg_t in_phone_hash,ipc_callid_t callid,
  70.                  ipc_call_t *call,
  71.                  void (*cthread)(ipc_callid_t,ipc_call_t *));
  72. void async_usleep(suseconds_t timeout);
  73. void async_create_manager(void);
  74. void async_destroy_manager(void);
  75. int _async_init(void);
  76.  
  77. /* Should be defined by application */
  78. void client_connection(ipc_callid_t callid, ipc_call_t *call) __attribute__((weak));
  79. void interrupt_received(ipc_call_t *call)  __attribute__((weak));
  80.  
  81.  
  82. extern atomic_t async_futex;
  83.  
  84. #endif
  85.