| 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 | } |