uhk/agent
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Add KeyActionFactory. Add compact length related methods to UhkBuffer. Add KeyActions.

Browse Source
This commit is contained in:
László Monda
2016-04-01 01:55:34 +02:00
parent ae6342911c
commit adca007cac
6 changed files with 110 additions and 65 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
config-serializer/UhkBuffer.ts
View File

@@ -1,7 +1,7 @@
class UhkBuffer {
private static eepromSize = 32 * 1024;
private static maxStringByteLength = 0xFFFF;
private static longStringPrefix = 0xFF;
private static maxCompactLength = 0xFFFF;
private static longCompactLengthPrefix = 0xFF;
private static stringEncoding = 'utf8';
buffer: Buffer;
@@ -87,13 +87,25 @@ class UhkBuffer {
this.offset += 4;
}
readString(): string {
let stringByteLength = this.readUInt8();
if (stringByteLength === UhkBuffer.longStringPrefix) {
stringByteLength += this.readUInt8() << 8;
readCompactLength(): number {
let length = this.readUInt8();
if (length === UhkBuffer.longCompactLengthPrefix) {
length += this.readUInt8() << 8;
}
return length;
}
writeCompactLength(length: number) {
if (length >= UhkBuffer.longCompactLengthPrefix) {
this.writeUInt8(UhkBuffer.longCompactLengthPrefix);
this.writeUInt16(length);
} else {
this.writeUInt8(length);
}
}
readString(): string {
let stringByteLength = this.readCompactLength();
let str = this.buffer.toString(UhkBuffer.stringEncoding, this.offset, stringByteLength);
this.bytesToBacktrack = stringByteLength;
this.offset += stringByteLength;
@@ -103,18 +115,12 @@ class UhkBuffer {
writeString(str: string): void {
let stringByteLength = Buffer.byteLength(str, UhkBuffer.stringEncoding);
if (stringByteLength > UhkBuffer.maxStringByteLength) {
if (stringByteLength > UhkBuffer.maxCompactLength) {
throw 'Cannot serialize string: ${stringByteLength} bytes is larger ' +
'than the maximum allowed length of ${UhkBuffer.maxStringByteLength} bytes';
}
if (stringByteLength >= UhkBuffer.longStringPrefix) {
this.writeUInt8(UhkBuffer.longStringPrefix);
this.writeUInt16(stringByteLength);
} else {
this.writeUInt8(stringByteLength);
}
this.writeCompactLength(stringByteLength);
this.buffer.write(str, this.offset, stringByteLength, UhkBuffer.stringEncoding);
this.offset += stringByteLength;
}