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examples: add "Networking between browser windows/tabs using the Broadcast Channel API" #1196

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Dec 16, 2024
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examples: add "Networking between browser windows/tabs using the Broadcast Channel API" #1196

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examples: add "Networking between browser windows/tabs using Broadcas…
SuperMaxusa Dec 13, 2024
60f0d99
add new api example in readme
SuperMaxusa Dec 13, 2024
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1 change: 1 addition & 0 deletions Readme.md
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Expand Up @@ -168,6 +168,7 @@ See [tests/Readme.md](tests/Readme.md) for more information.
- [Programatically using the serial terminal](examples/serial.html)
- [A Lua interpreter](examples/lua.html)
- [Two instances in one window](examples/two_instances.html)
- [Networking between browser windows/tabs using the Broadcast Channel API](examples/broadcast-network.html)
- [Saving and restoring emulator state](examples/save_restore.html)

Using v86 for your own purposes is as easy as:
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59 changes: 59 additions & 0 deletions examples/broadcast-network.html
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@@ -0,0 +1,59 @@
<!doctype html>
<title>Networking via Broadcast Channel API</title>

<script src="../build/libv86.js"></script>
<script>
"use strict";

window.onload = function()
{
var emulator = window.emulator = new V86({
wasm_path: "../build/v86.wasm",
memory_size: 64 * 1024 * 1024,
vga_memory_size: 2 * 1024 * 1024,
screen_container: document.getElementById("screen_container"),
bios: {
url: "../bios/seabios.bin",
},
vga_bios: {
url: "../bios/vgabios.bin",
},
bzimage: {
url: "../images/buildroot-bzimage68.bin",
},
autostart: true,
});

var broadcast = new BroadcastChannel("v86-network");

broadcast.addEventListener("message", function(e) {
emulator.bus.send("net0-receive", e.data);
});
emulator.add_listener("net0-send", function(packet) {
broadcast.postMessage(packet);
});
}
</script>

<div id="screen_container">
<div style="white-space: pre; font: 14px monospace; line-height: 14px"></div>
<canvas style="display: none"></canvas>
</div>

<pre>
# Configure a static IP
ifconfig eth0 up arp 10.5.0.x

# Ping by IP
ping 10.5.0.x

# Run a DNS server and send a query (10.5.0.x for server, 10.5.0.y for record)
echo "anotherhost 10.5.0.y" | dnsd -c - -v - server
nslookup -type=a anotherhost 10.5.0.x - client

# Telnet calculator
socat TCP-L:23,fork exec:bc

# Simple HTTP server
socat TCP-L:80,crlf,fork system:'echo HTTP/1.1 200 OK;echo;lua /root/test.lua'
</pre>
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