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Rewrite write-config.js using async/await.

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This commit is contained in:
László Monda
2018-04-01 01:13:17 +02:00
parent 58178a5c7b
commit 847694d590
1 changed files with 19 additions and 22 deletions
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41
packages/usb/write-config.js
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@@ -23,29 +23,26 @@ let offset = 0;
let configBuffer = fs.readFileSync(configBin);
let chunkSizeToRead;
const payload = new Buffer([uhk.usbCommands.getDeviceProperty, uhk.devicePropertyIds.configSizes]);
(async function() {
let buffer = await uhk.writeDevice(device, [uhk.usbCommands.getDeviceProperty, uhk.devicePropertyIds.configSizes]);
const hardwareConfigMaxSize = buffer[1] + (buffer[2]<<8);
const userConfigMaxSize = buffer[3] + (buffer[4]<<8);
const configMaxSize = isHardwareConfig ? hardwareConfigMaxSize : userConfigMaxSize;
const configSize = Math.min(configMaxSize, configBuffer.length);
device.write(uhk.getTransferData(payload));
let buffer = Buffer.from(device.readSync());
const hardwareConfigMaxSize = buffer[1] + (buffer[2]<<8);
const userConfigMaxSize = buffer[3] + (buffer[4]<<8);
const configMaxSize = isHardwareConfig ? hardwareConfigMaxSize : userConfigMaxSize;
const configSize = Math.min(configMaxSize, configBuffer.length);
while (offset < configSize) {
const usbCommand = isHardwareConfig ? uhk.usbCommands.writeHardwareConfig : uhk.usbCommands.writeStagingUserConfig;
chunkSizeToRead = Math.min(chunkSize, configSize - offset);
while (offset < configSize) {
const usbCommand = isHardwareConfig ? uhk.usbCommands.writeHardwareConfig : uhk.usbCommands.writeStagingUserConfig;
chunkSizeToRead = Math.min(chunkSize, configSize - offset);
if (chunkSizeToRead === 0) {
break;
}
if (chunkSizeToRead === 0) {
break;
buffer = [
...[usbCommand, chunkSizeToRead, offset & 0xff, offset >> 8],
...configBuffer.slice(offset, offset+chunkSizeToRead)
];
await uhk.writeDevice(device, buffer)
offset += chunkSizeToRead;
}
buffer = Buffer.concat([
new Buffer([usbCommand, chunkSizeToRead, offset & 0xff, offset >> 8]),
configBuffer.slice(offset, offset+chunkSizeToRead)
]);
device.write(uhk.getTransferData(buffer));
device.readSync();
offset += chunkSizeToRead;
}
})();