Rev 4350 | Go to most recent revision | Details | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
4307 | mejdrech | 1 | /* |
2 | * Copyright (c) 2009 Lukas 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 packet |
||
30 | * @{ |
||
31 | */ |
||
32 | |||
33 | /** |
||
34 | * @file |
||
35 | */ |
||
36 | |||
37 | #include <async.h> |
||
38 | |||
39 | #include <ipc/ipc.h> |
||
40 | #include <sys/mman.h> |
||
41 | |||
42 | #include "../../err.h" |
||
43 | #include "../../messages.h" |
||
44 | |||
45 | #include "packet.h" |
||
46 | #include "packet_client.h" |
||
47 | #include "packet_messages.h" |
||
48 | |||
49 | /** Obtains the packet from the packet server as the shared memory block. |
||
50 | * Creates the local packet mapping as well. |
||
51 | * @param phone The packet server module phone. Input parameter. |
||
52 | * @param packet The packet reference pointer to store the received packet reference. Output parameter. |
||
53 | * @param packet_id The packet identifier. Input parameter. |
||
54 | * @param size The packet total size in bytes. Input parameter. |
||
55 | * @returns EOK on success. |
||
56 | * \todo ipc_share_in_start() error? |
||
57 | * @returns Other error codes as defined for the pm_add() function. |
||
58 | */ |
||
59 | int packet_return( int phone, packet_ref packet, packet_id_t packet_id, size_t size ); |
||
60 | |||
61 | int packet_translate( int phone, packet_ref packet, packet_id_t packet_id ){ |
||
62 | ERROR_DECLARE; |
||
63 | |||
64 | unsigned int size; |
||
65 | |||
66 | if( ! packet ) return EINVAL; |
||
67 | * packet = pm_find( packet_id ); |
||
68 | if( * packet ) return EOK; |
||
69 | ERROR_PROPAGATE( async_req_1_1( phone, NET_PACKET_GET_SIZE, packet_id, & size )); |
||
70 | return packet_return( phone, packet, packet_id, size ); |
||
71 | } |
||
72 | |||
73 | int packet_return( int phone, packet_ref packet, packet_id_t packet_id, size_t size ){ |
||
74 | ERROR_DECLARE; |
||
75 | |||
76 | aid_t message; |
||
77 | ipc_call_t answer; |
||
78 | ipcarg_t result; |
||
79 | |||
80 | message = async_send_1( phone, NET_PACKET_GET, packet_id, & answer ); |
||
81 | * packet = ( packet_t ) as_get_mappable_page( size ); |
||
82 | if( ERROR_OCCURRED( ipc_share_in_start_0_0( phone, * packet, size )) |
||
83 | || ERROR_OCCURRED( pm_add( * packet ))){ |
||
84 | munmap( * packet, size ); |
||
85 | async_wait_for( message, NULL ); |
||
86 | return ERROR_CODE; |
||
87 | } |
||
88 | async_wait_for( message, & result ); |
||
89 | return result; |
||
90 | } |
||
91 | |||
92 | packet_t packet_get_4( int phone, size_t max_content, size_t addr_len, size_t max_prefix, size_t max_suffix ){ |
||
93 | ERROR_DECLARE; |
||
94 | |||
95 | packet_id_t packet_id; |
||
96 | unsigned int size; |
||
97 | packet_t packet; |
||
98 | |||
99 | if( ERROR_OCCURRED( async_req_4_2( phone, NET_PACKET_CREATE_4, max_content, addr_len, max_prefix, max_suffix, ( ipcarg_t * ) & packet_id, & size )) |
||
100 | || ERROR_OCCURRED( packet_return( phone, & packet, packet_id, size ))){ |
||
101 | return NULL; |
||
102 | } |
||
103 | return packet; |
||
104 | } |
||
105 | |||
106 | packet_t packet_get_1( int phone, size_t content ){ |
||
107 | ERROR_DECLARE; |
||
108 | |||
109 | packet_id_t packet_id; |
||
110 | unsigned int size; |
||
111 | packet_t packet; |
||
112 | |||
113 | if( ERROR_OCCURRED( async_req_1_2( phone, NET_PACKET_CREATE_1, content, ( ipcarg_t * ) & packet_id, & size )) |
||
114 | || ERROR_OCCURRED( packet_return( phone, & packet, packet_id, size ))){ |
||
115 | return NULL; |
||
116 | } |
||
117 | return packet; |
||
118 | } |
||
119 | |||
120 | void pq_release( int phone, packet_id_t packet_id ){ |
||
121 | async_msg_1( phone, NET_PACKET_RELEASE, packet_id ); |
||
122 | } |
||
123 | |||
124 | /** @} |
||
125 | */ |