wip
Dependents: EthernetInterface_vz
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UDPSocket.cpp@27:32b65754bb02, 2015-05-13 (annotated)
- Committer:
- klauss
- Date:
- Wed May 13 21:16:17 2015 +0000
- Revision:
- 27:32b65754bb02
- Parent:
- 26:4c022b0e816a
- Child:
- 28:b63d42feab2a
#include "debug.h"
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
donatien | 0:1f77255a22f5 | 1 | /* Copyright (C) 2012 mbed.org, MIT License |
donatien | 0:1f77255a22f5 | 2 | * |
donatien | 0:1f77255a22f5 | 3 | * Permission is hereby granted, free of charge, to any person obtaining a copy of this software |
donatien | 0:1f77255a22f5 | 4 | * and associated documentation files (the "Software"), to deal in the Software without restriction, |
donatien | 0:1f77255a22f5 | 5 | * including without limitation the rights to use, copy, modify, merge, publish, distribute, |
donatien | 0:1f77255a22f5 | 6 | * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is |
donatien | 0:1f77255a22f5 | 7 | * furnished to do so, subject to the following conditions: |
donatien | 0:1f77255a22f5 | 8 | * |
donatien | 0:1f77255a22f5 | 9 | * The above copyright notice and this permission notice shall be included in all copies or |
donatien | 0:1f77255a22f5 | 10 | * substantial portions of the Software. |
donatien | 0:1f77255a22f5 | 11 | * |
donatien | 0:1f77255a22f5 | 12 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING |
donatien | 0:1f77255a22f5 | 13 | * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
donatien | 0:1f77255a22f5 | 14 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
donatien | 0:1f77255a22f5 | 15 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
donatien | 0:1f77255a22f5 | 16 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
donatien | 0:1f77255a22f5 | 17 | */ |
donatien | 0:1f77255a22f5 | 18 | |
emilmont | 5:300e7ad2dc1d | 19 | #include "Socket/UDPSocket.h" |
donatien | 0:1f77255a22f5 | 20 | |
donatien | 0:1f77255a22f5 | 21 | #include <cstring> |
donatien | 0:1f77255a22f5 | 22 | |
donatien | 0:1f77255a22f5 | 23 | using std::memset; |
donatien | 0:1f77255a22f5 | 24 | |
klauss | 24:422fa048a516 | 25 | int lwip_sock_portando_ntohs = 0; |
klauss | 24:422fa048a516 | 26 | int lwip_sock_portando_local_port = 0; |
klauss | 24:422fa048a516 | 27 | |
klauss | 27:32b65754bb02 | 28 | //#include "header_app_includes.h" |
klauss | 27:32b65754bb02 | 29 | #include "debug.h" |
klauss | 24:422fa048a516 | 30 | |
emilmont | 3:e6474399e057 | 31 | UDPSocket::UDPSocket() { |
donatien | 0:1f77255a22f5 | 32 | } |
donatien | 0:1f77255a22f5 | 33 | |
emilmont | 5:300e7ad2dc1d | 34 | int UDPSocket::init(void) { |
emilmont | 5:300e7ad2dc1d | 35 | return init_socket(SOCK_DGRAM); |
emilmont | 5:300e7ad2dc1d | 36 | } |
emilmont | 5:300e7ad2dc1d | 37 | |
emilmont | 3:e6474399e057 | 38 | // Server initialization |
emilmont | 3:e6474399e057 | 39 | int UDPSocket::bind(int port) { |
emilmont | 5:300e7ad2dc1d | 40 | if (init_socket(SOCK_DGRAM) < 0) |
emilmont | 3:e6474399e057 | 41 | return -1; |
emilmont | 3:e6474399e057 | 42 | |
emilmont | 3:e6474399e057 | 43 | struct sockaddr_in localHost; |
emilmont | 3:e6474399e057 | 44 | std::memset(&localHost, 0, sizeof(localHost)); |
emilmont | 3:e6474399e057 | 45 | |
emilmont | 3:e6474399e057 | 46 | localHost.sin_family = AF_INET; |
emilmont | 3:e6474399e057 | 47 | localHost.sin_port = htons(port); |
klauss | 25:de20f827fa8c | 48 | |
klauss | 25:de20f827fa8c | 49 | if ( debug_bind ) send_msg("bind of %d -- result in ( %d, %d )", port, htons(port), localHost.sin_port ); |
klauss | 25:de20f827fa8c | 50 | |
emilmont | 3:e6474399e057 | 51 | localHost.sin_addr.s_addr = INADDR_ANY; |
emilmont | 3:e6474399e057 | 52 | |
emilmont | 3:e6474399e057 | 53 | if (lwip_bind(_sock_fd, (const struct sockaddr *) &localHost, sizeof(localHost)) < 0) { |
emilmont | 3:e6474399e057 | 54 | close(); |
emilmont | 3:e6474399e057 | 55 | return -1; |
emilmont | 3:e6474399e057 | 56 | } |
klauss | 25:de20f827fa8c | 57 | if ( debug_bind ) send_msg("lwip_sock_portando_local_port %d - lwip_sock_portando_ntohs %d ", lwip_sock_portando_local_port, lwip_sock_portando_ntohs ); |
emilmont | 3:e6474399e057 | 58 | |
emilmont | 3:e6474399e057 | 59 | return 0; |
donatien | 0:1f77255a22f5 | 60 | } |
donatien | 0:1f77255a22f5 | 61 | |
emilmont | 16:2d471deff212 | 62 | int UDPSocket::join_multicast_group(const char* address) { |
emilmont | 16:2d471deff212 | 63 | struct ip_mreq mreq; |
emilmont | 16:2d471deff212 | 64 | |
emilmont | 16:2d471deff212 | 65 | // Set up group address |
emilmont | 16:2d471deff212 | 66 | mreq.imr_multiaddr.s_addr = inet_addr(address); |
emilmont | 16:2d471deff212 | 67 | mreq.imr_interface.s_addr = htonl(INADDR_ANY); |
emilmont | 16:2d471deff212 | 68 | |
emilmont | 16:2d471deff212 | 69 | return set_option(IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof(mreq)); |
emilmont | 16:2d471deff212 | 70 | } |
emilmont | 16:2d471deff212 | 71 | |
emilmont | 18:d56496360fc9 | 72 | int UDPSocket::set_broadcasting(bool broadcast) { |
emilmont | 18:d56496360fc9 | 73 | int option = (broadcast) ? (1) : (0); |
emilmont | 16:2d471deff212 | 74 | return set_option(SOL_SOCKET, SO_BROADCAST, &option, sizeof(option)); |
emilmont | 16:2d471deff212 | 75 | } |
emilmont | 16:2d471deff212 | 76 | |
donatien | 0:1f77255a22f5 | 77 | // -1 if unsuccessful, else number of bytes written |
emilmont | 11:3d83c348fb8b | 78 | int UDPSocket::sendTo(Endpoint &remote, char *packet, int length) { |
emilmont | 3:e6474399e057 | 79 | if (_sock_fd < 0) |
emilmont | 3:e6474399e057 | 80 | return -1; |
emilmont | 3:e6474399e057 | 81 | |
emilmont | 10:d24738f4ef99 | 82 | if (!_blocking) { |
emilmont | 10:d24738f4ef99 | 83 | TimeInterval timeout(_timeout); |
emilmont | 6:cd2e5559786d | 84 | if (wait_writable(timeout) != 0) |
emilmont | 11:3d83c348fb8b | 85 | return 0; |
donatien | 0:1f77255a22f5 | 86 | } |
emilmont | 3:e6474399e057 | 87 | |
emilmont | 11:3d83c348fb8b | 88 | return lwip_sendto(_sock_fd, packet, length, 0, (const struct sockaddr *) &remote._remoteHost, sizeof(remote._remoteHost)); |
donatien | 0:1f77255a22f5 | 89 | } |
donatien | 0:1f77255a22f5 | 90 | |
donatien | 0:1f77255a22f5 | 91 | // -1 if unsuccessful, else number of bytes received |
emilmont | 11:3d83c348fb8b | 92 | int UDPSocket::receiveFrom(Endpoint &remote, char *buffer, int length) { |
emilmont | 3:e6474399e057 | 93 | if (_sock_fd < 0) |
emilmont | 3:e6474399e057 | 94 | return -1; |
emilmont | 3:e6474399e057 | 95 | |
emilmont | 10:d24738f4ef99 | 96 | if (!_blocking) { |
emilmont | 10:d24738f4ef99 | 97 | TimeInterval timeout(_timeout); |
emilmont | 6:cd2e5559786d | 98 | if (wait_readable(timeout) != 0) |
emilmont | 11:3d83c348fb8b | 99 | return 0; |
emilmont | 5:300e7ad2dc1d | 100 | } |
emilmont | 11:3d83c348fb8b | 101 | remote.reset_address(); |
emilmont | 11:3d83c348fb8b | 102 | socklen_t remoteHostLen = sizeof(remote._remoteHost); |
emilmont | 11:3d83c348fb8b | 103 | return lwip_recvfrom(_sock_fd, buffer, length, 0, (struct sockaddr*) &remote._remoteHost, &remoteHostLen); |
donatien | 0:1f77255a22f5 | 104 | } |
klauss | 21:9e672d32fbb4 | 105 | |
klauss | 21:9e672d32fbb4 | 106 | int UDPSocket::get_fd(){ |
klauss | 21:9e672d32fbb4 | 107 | return _sock_fd; |
klauss | 21:9e672d32fbb4 | 108 | } |