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'use strict';
const common = require('../common');
const assert = require('assert');
const dgram = require('dgram');
{
// Should throw error if the socket is never bound.
const errorObj = {
code: 'ERR_SOCKET_BUFFER_SIZE',
type: Error,
message: /^Could not get or set buffer size:.*$/
};
const socket = dgram.createSocket('udp4');
common.expectsError(() => {
socket.setRecvBufferSize(8192);
}, errorObj);
common.expectsError(() => {
socket.setSendBufferSize(8192);
}, errorObj);
common.expectsError(() => {
socket.getRecvBufferSize();
}, errorObj);
common.expectsError(() => {
socket.getSendBufferSize();
}, errorObj);
}
{
// Should throw error if invalid buffer size is specified
const errorObj = {
code: 'ERR_SOCKET_BAD_BUFFER_SIZE',
type: TypeError,
message: /^Buffer size must be a positive integer$/
};
const badBufferSizes = [-1, Infinity, 'Doh!'];
const socket = dgram.createSocket('udp4');
socket.bind(common.mustCall(() => {
badBufferSizes.forEach((badBufferSize) => {
common.expectsError(() => {
socket.setRecvBufferSize(badBufferSize);
}, errorObj);
common.expectsError(() => {
socket.setSendBufferSize(badBufferSize);
}, errorObj);
});
socket.close();
}));
}
{
// Can set and get buffer sizes after binding the socket.
const socket = dgram.createSocket('udp4');
socket.bind(common.mustCall(() => {
socket.setRecvBufferSize(10000);
socket.setSendBufferSize(10000);
// note: linux will double the buffer size
const expectedBufferSize = common.isLinux ? 20000 : 10000;
assert.strictEqual(socket.getRecvBufferSize(), expectedBufferSize);
assert.strictEqual(socket.getSendBufferSize(), expectedBufferSize);
socket.close();
}));
}
function checkBufferSizeError(type, size) {
const errorObj = {
code: 'ERR_SOCKET_BUFFER_SIZE',
type: Error,
message: /^Could not get or set buffer size:.*$/
};
const functionName = `set${type.charAt(0).toUpperCase()}${type.slice(1)}` +
'BufferSize';
const socket = dgram.createSocket('udp4');
socket.bind(common.mustCall(() => {
common.expectsError(() => {
socket[functionName](size);
}, errorObj);
socket.close();
}));
}
checkBufferSizeError('recv', 2147483648);
checkBufferSizeError('send', 2147483648);
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