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1 | #pragma once |
2 | /* | |
3 | * This file is part of the libCEC(R) library. | |
4 | * | |
5 | * libCEC(R) is Copyright (C) 2011 Pulse-Eight Limited. All rights reserved. | |
6 | * libCEC(R) is an original work, containing original code. | |
7 | * | |
8 | * libCEC(R) is a trademark of Pulse-Eight Limited. | |
9 | * | |
10 | * This program is dual-licensed; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
23 | * | |
24 | * | |
25 | * Alternatively, you can license this library under a commercial license, | |
26 | * please contact Pulse-Eight Licensing for more information. | |
27 | * | |
28 | * For more information contact: | |
29 | * Pulse-Eight Licensing <license@pulse-eight.com> | |
30 | * http://www.pulse-eight.com/ | |
31 | * http://www.pulse-eight.net/ | |
32 | */ | |
33 | ||
34 | ||
35 | #include "../os.h" | |
36 | #include "../util/timeutils.h" | |
37 | #include <stdio.h> | |
38 | #include <fcntl.h> | |
39 | ||
40 | namespace PLATFORM | |
41 | { | |
42 | inline void SocketClose(socket_t socket) | |
43 | { | |
44 | if (socket != INVALID_SOCKET) | |
45 | close(socket); | |
46 | } | |
47 | ||
48 | inline void SocketSetBlocking(socket_t socket, bool bSetTo) | |
49 | { | |
50 | // return bSetTo ? | |
51 | // fcntl(socket, F_SETFL, fcntl(socket, F_GETFL) & ~O_NONBLOCK) == 0 : | |
52 | // fcntl(socket, F_SETFL, fcntl(socket, F_GETFL) | O_NONBLOCK) == 0; | |
53 | fcntl(socket, F_SETFL, bSetTo ? FNDELAY : 0); | |
54 | } | |
55 | ||
56 | inline int64_t SocketWrite(socket_t socket, int *iError, uint8_t* data, uint32_t len) | |
57 | { | |
58 | fd_set port; | |
59 | ||
60 | if (socket == -1) | |
61 | { | |
62 | *iError = EINVAL; | |
63 | return -1; | |
64 | } | |
65 | ||
66 | int64_t iBytesWritten = 0; | |
67 | struct timeval *tv; | |
68 | ||
69 | while (iBytesWritten < len) | |
70 | { | |
71 | FD_ZERO(&port); | |
72 | FD_SET(socket, &port); | |
73 | int returnv = select(socket + 1, NULL, &port, NULL, tv); | |
74 | if (returnv < 0) | |
75 | { | |
76 | *iError = errno; | |
77 | return -1; | |
78 | } | |
79 | else if (returnv == 0) | |
80 | { | |
81 | *iError = ETIMEDOUT; | |
82 | return -1; | |
83 | } | |
84 | ||
85 | returnv = write(socket, data + iBytesWritten, len - iBytesWritten); | |
86 | if (returnv == -1) | |
87 | { | |
88 | *iError = errno; | |
89 | return -1; | |
90 | } | |
91 | iBytesWritten += returnv; | |
92 | } | |
93 | ||
94 | return iBytesWritten; | |
95 | } | |
96 | ||
97 | inline int32_t SocketRead(socket_t socket, int *iError, uint8_t* data, uint32_t len, uint64_t iTimeoutMs /*= 0*/) | |
98 | { | |
99 | fd_set port; | |
100 | struct timeval timeout, *tv; | |
101 | int64_t iNow(0), iTarget(0); | |
102 | int32_t iBytesRead = 0; | |
103 | *iError = 0; | |
104 | ||
105 | if (socket == -1) | |
106 | { | |
107 | *iError = EINVAL; | |
108 | return -1; | |
109 | } | |
110 | ||
111 | if (iTimeoutMs > 0) | |
112 | { | |
113 | iNow = GetTimeMs(); | |
114 | iTarget = iNow + (int64_t) iTimeoutMs; | |
115 | } | |
116 | ||
117 | while (iBytesRead < (int32_t) len && (iTimeoutMs == 0 || iTarget > iNow)) | |
118 | { | |
119 | if (iTimeoutMs == 0) | |
120 | { | |
121 | tv = NULL; | |
122 | } | |
123 | else | |
124 | { | |
125 | timeout.tv_sec = ((long int)iTarget - (long int)iNow) / (long int)1000.; | |
126 | timeout.tv_usec = ((long int)iTarget - (long int)iNow) % (long int)1000.; | |
127 | tv = &timeout; | |
128 | } | |
129 | ||
130 | FD_ZERO(&port); | |
131 | FD_SET(socket, &port); | |
132 | int32_t returnv = select(socket + 1, &port, NULL, NULL, tv); | |
133 | ||
134 | if (returnv == -1) | |
135 | { | |
136 | *iError = errno; | |
137 | return -1; | |
138 | } | |
139 | else if (returnv == 0) | |
140 | { | |
141 | break; //nothing to read | |
142 | } | |
143 | ||
144 | returnv = read(socket, data + iBytesRead, len - iBytesRead); | |
145 | if (returnv == -1) | |
146 | { | |
147 | *iError = errno; | |
148 | return -1; | |
149 | } | |
150 | ||
151 | iBytesRead += returnv; | |
152 | ||
153 | if (iTimeoutMs > 0) | |
154 | iNow = GetTimeMs(); | |
155 | } | |
156 | ||
157 | return iBytesRead; | |
158 | } | |
159 | } |