Subversion Repositories HelenOS

Rev

Rev 4722 | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
3466 mejdrech 1
/*
3912 mejdrech 2
 * Copyright (c) 2009 Lukas Mejdrech
3466 mejdrech 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 net
3912 mejdrech 30
 *  @{
3466 mejdrech 31
 */
32
 
33
/** @file
4350 mejdrech 34
 *  Generic module functions implementation.
3466 mejdrech 35
 */
4722 mejdrech 36
 
3466 mejdrech 37
#include <async.h>
4722 mejdrech 38
#include <malloc.h>
3846 mejdrech 39
 
3466 mejdrech 40
#include <ipc/ipc.h>
41
#include <ipc/services.h>
42
 
3666 mejdrech 43
#include "err.h"
3466 mejdrech 44
#include "modules.h"
45
 
4350 mejdrech 46
/** The time between connect requests.
47
 */
3466 mejdrech 48
#define MODULE_WAIT_TIME    10000
49
 
50
int connect_to_service( services_t need ){
4243 mejdrech 51
    int phone;
52
    int res;
3466 mejdrech 53
 
4350 mejdrech 54
    //TODO timeout version?
4243 mejdrech 55
    res = async_req_3_5( PHONE_NS, IPC_M_CONNECT_ME_TO, need, 0, 0, NULL, NULL, NULL, NULL, ( ipcarg_t * ) & phone );
3685 mejdrech 56
    while(( res < 0 ) || ( phone < 0 )){
57
        usleep( MODULE_WAIT_TIME );
4243 mejdrech 58
        res = async_req_3_5( PHONE_NS, IPC_M_CONNECT_ME_TO, need, 0, 0, NULL, NULL, NULL, NULL, ( ipcarg_t * ) & phone );
3466 mejdrech 59
    }
60
    return phone;
61
}
62
 
3846 mejdrech 63
int bind_service( services_t need, ipcarg_t arg1, ipcarg_t arg2, ipcarg_t arg3, async_client_conn_t client_receiver ){
3466 mejdrech 64
    ERROR_DECLARE;
65
 
4243 mejdrech 66
    int         phone;
3846 mejdrech 67
    ipcarg_t    phonehash;
3466 mejdrech 68
 
3846 mejdrech 69
    phone = connect_to_service( need );
70
    if( phone >= 0 ){
3912 mejdrech 71
        if( ERROR_OCCURRED( ipc_connect_to_me( phone, arg1, arg2, arg3, & phonehash ))){
3846 mejdrech 72
            async_msg_0( phone, IPC_M_PHONE_HUNGUP );
73
            return ERROR_CODE;
3466 mejdrech 74
        }
3846 mejdrech 75
        async_new_connection( phonehash, 0, NULL, client_receiver );
3466 mejdrech 76
    }
3846 mejdrech 77
    return phone;
3466 mejdrech 78
}
79
 
4714 mejdrech 80
void answer_call( ipc_callid_t callid, int result, ipc_call_t * answer, int answer_count ){
81
    if( answer || ( ! answer_count )){
82
        switch( answer_count ){
83
            case 0:
84
                ipc_answer_0( callid, ( ipcarg_t ) result );
85
                break;
86
            case 1:
87
                ipc_answer_1( callid, ( ipcarg_t ) result, IPC_GET_ARG1( * answer ));
88
                break;
89
            case 2:
90
                ipc_answer_2( callid, ( ipcarg_t ) result, IPC_GET_ARG1( * answer ), IPC_GET_ARG2( * answer ));
91
                break;
92
            case 3:
93
                ipc_answer_3( callid, ( ipcarg_t ) result, IPC_GET_ARG1( * answer ), IPC_GET_ARG2( * answer ), IPC_GET_ARG3( * answer ));
94
                break;
95
            case 4:
96
                ipc_answer_4( callid, ( ipcarg_t ) result, IPC_GET_ARG1( * answer ), IPC_GET_ARG2( * answer ), IPC_GET_ARG3( * answer ), IPC_GET_ARG4( * answer ));
97
                break;
98
            case 5:
99
            default:
100
                ipc_answer_5( callid, ( ipcarg_t ) result, IPC_GET_ARG1( * answer ), IPC_GET_ARG2( * answer ), IPC_GET_ARG3( * answer ), IPC_GET_ARG4( * answer ), IPC_GET_ARG5( * answer ));
101
                break;
102
        }
103
    }
104
}
105
 
106
void refresh_answer( ipc_call_t * answer, int * answer_count ){
107
    if( answer_count ){
108
        * answer_count = 0;
109
    }
110
    if( answer ){
111
        IPC_SET_RETVAL( * answer, 0 );
112
        // just to be precize
113
        IPC_SET_METHOD( * answer, 0 );
114
        IPC_SET_ARG1( * answer, 0 );
115
        IPC_SET_ARG2( * answer, 0 );
116
        IPC_SET_ARG3( * answer, 0 );
117
        IPC_SET_ARG4( * answer, 0 );
118
        IPC_SET_ARG5( * answer, 0 );
119
    }
120
}
121
 
4722 mejdrech 122
int data_receive( void ** data, size_t * length ){
123
    ERROR_DECLARE;
124
 
125
    ipc_callid_t    callid;
126
 
127
    if( !( data && length )) return EBADMEM;
128
    if( ! ipc_data_write_receive( & callid, length )) return EINVAL;
129
    * data = malloc( * length );
130
    if( !( * data )) return ENOMEM;
131
    if( ERROR_OCCURRED( ipc_data_write_finalize( callid, * data, * length ))){
132
        free( data );
133
        return ERROR_CODE;
134
    }
135
    return EOK;
136
}
137
 
138
int data_reply( void * data, size_t data_length ){
139
    size_t          length;
140
    ipc_callid_t    callid;
141
 
4731 mejdrech 142
    if( ! ipc_data_read_receive( & callid, & length )){
4722 mejdrech 143
        return EINVAL;
144
    }
4731 mejdrech 145
    if( length < data_length ){
146
        ipc_data_read_finalize( callid, data, length );
147
        return EOVERFLOW;
148
    }
4722 mejdrech 149
    return ipc_data_read_finalize( callid, data, data_length );
150
}
151
 
3466 mejdrech 152
/** @}
153
 */