arduino/esp8266
1
0
Fork 0
mirror of https://github.com/esp8266/Arduino.git synced 2025-07-10 04:22:05 +03:00
Code Activity

Add support for multicast UDP

Browse Source
This commit is contained in:
Ivan Grokhotkov
2015-02-01 01:52:23 +03:00
parent aa6e0ce54f
commit c28a63c9d5
3 changed files with 49 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
libraries/ESP8266WiFi/src/WiFiUdp.cpp
View File

@ -35,6 +35,7 @@ extern "C"
#include "lwip/opt.h"
#include "lwip/udp.h"
#include "lwip/inet.h"
#include "lwip/igmp.h"
#include "include/UdpContext.h"
/* Constructor */
@ -73,6 +74,32 @@ uint8_t WiFiUDP::begin(uint16_t port)
return (_ctx->listen(addr, port)) ? 1 : 0;
}
uint8_t WiFiUDP::beginMulticast(IPAddress multicast, uint16_t port)
{
if (_ctx)
{
_ctx->unref();
_ctx = 0;
}
ip_addr_t ifaddr;
ifaddr.addr = (uint32_t) WiFi.localIP();
ip_addr_t multicast_addr;
multicast_addr.addr = (uint32_t) multicast;
if (igmp_joingroup(&ifaddr, &multicast_addr)!= ERR_OK) {
return 0;
}
_ctx = new UdpContext;
if (!_ctx->listen(*IP_ADDR_ANY, port)) {
return 0;
}
return 1;
}
/* return number of bytes available in the current packet,
will return zero if parsePacket hasn't been called yet */
int WiFiUDP::available() {
@ -117,6 +144,17 @@ int WiFiUDP::endPacket()
return 0;
_ctx->send();
return 1;
}
int WiFiUDP::endPacketMulticast(IPAddress ip, uint16_t port)
{
if (!_ctx)
return 0;
ip_addr_t addr;
addr.addr = (uint32_t) ip;
_ctx->send(&addr, port);
return 1;
}
size_t WiFiUDP::write(uint8_t byte)