]>
Commit | Line | Data |
---|---|---|
1 | /** @file\r | |
2 | Implement the send API.\r | |
3 | \r | |
4 | Copyright (c) 2011, Intel Corporation\r | |
5 | All rights reserved. This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include <SocketInternals.h>\r | |
16 | \r | |
17 | \r | |
18 | /**\r | |
19 | Send data using a network connection.\r | |
20 | \r | |
21 | The ::send routine queues data to the network for transmission.\r | |
22 | The\r | |
23 | <a href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/send.html">POSIX</a>\r | |
24 | documentation is available online.\r | |
25 | \r | |
26 | @param [in] s Socket file descriptor returned from ::socket.\r | |
27 | \r | |
28 | @param [in] buffer Address of a buffer containing the data to send.\r | |
29 | \r | |
30 | @param [in] length Length of the buffer in bytes.\r | |
31 | \r | |
32 | @param [in] flags Message control flags\r | |
33 | \r | |
34 | @returns ::send returns the number of data bytes that were\r | |
35 | sent and -1 when an error occurs. In the case of\r | |
36 | an error, errno contains more details.\r | |
37 | \r | |
38 | **/\r | |
39 | ssize_t\r | |
40 | send (\r | |
41 | int s,\r | |
42 | CONST void * buffer,\r | |
43 | size_t length,\r | |
44 | int flags\r | |
45 | )\r | |
46 | {\r | |
47 | ssize_t LengthInBytes;\r | |
48 | CONST UINT8 * pData;\r | |
49 | struct __filedes * pDescriptor;\r | |
50 | EFI_SOCKET_PROTOCOL * pSocketProtocol;\r | |
51 | EFI_STATUS Status;\r | |
52 | \r | |
53 | //\r | |
54 | // Assume failure\r | |
55 | //\r | |
56 | LengthInBytes = -1;\r | |
57 | \r | |
58 | //\r | |
59 | // Locate the context for this socket\r | |
60 | //\r | |
61 | pSocketProtocol = BslFdToSocketProtocol ( s,\r | |
62 | &pDescriptor,\r | |
63 | &errno );\r | |
64 | if ( NULL != pSocketProtocol ) {\r | |
65 | //\r | |
66 | // Send the data using the socket\r | |
67 | //\r | |
68 | pData = buffer;\r | |
69 | do {\r | |
70 | errno = 0;\r | |
71 | Status = pSocketProtocol->pfnSend ( pSocketProtocol,\r | |
72 | flags,\r | |
73 | length,\r | |
74 | pData,\r | |
75 | (size_t *)&LengthInBytes,\r | |
76 | NULL,\r | |
77 | 0,\r | |
78 | &errno );\r | |
79 | if ( EFI_ERROR ( Status )) {\r | |
80 | LengthInBytes = -1;\r | |
81 | break;\r | |
82 | }\r | |
83 | \r | |
84 | //\r | |
85 | // Account for the data sent\r | |
86 | //\r | |
87 | pData += LengthInBytes;\r | |
88 | length -= LengthInBytes;\r | |
89 | // TODO: Add non-blocking check\r | |
90 | } while (( 0 != length ) && ( EFI_NOT_READY == Status ));\r | |
91 | }\r | |
92 | \r | |
93 | //\r | |
94 | // Return the number of data bytes sent, -1 for errors\r | |
95 | //\r | |
96 | return (INT32)LengthInBytes;\r | |
97 | }\r |