Swift
Swift
Receive Text up to a Delimiter Byte
See more Socket/SSL/TLS Examples
Demonstrates Socket.ReceiveStringUntilByte, which receives bytes until a specific raw byte value is found, then decodes the preceding bytes using StringCharset. The delimiter is excluded from the returned string.
Background. The delimiter search is purely byte-oriented and does not recognize character boundaries. A common delimiter is the linefeed byte (decimal 10).
Chilkat Swift Downloads
func chilkatTest() {
var success: Bool = false
let socket = CkoSocket()!
// Connect to the server using TLS. The 3rd argument enables the TLS handshake after the TCP
// connection succeeds; the 4th is the maximum time to wait, in milliseconds.
var bTls: Bool = true
var maxWaitMs: Int = 5000
success = socket.connect(hostname: "example.com", port: 5000, ssl: bTls, maxWaitMs: maxWaitMs)
if success == false {
print("\(socket.lastErrorText!)")
return
}
// StringCharset controls the character encoding used when sending and receiving text.
socket.stringCharset = "utf-8"
// Send a request using a simple application-defined text protocol in which each message ends with a
// CRLF.
var command: String? = "STATUS\r\n"
success = socket.sendString(str: command)
if success == false {
print("\(socket.lastErrorText!)")
return
}
// Receive bytes until a specific raw byte value is found, then decode the preceding bytes using
// StringCharset. The delimiter itself is excluded from the returned string. Here the delimiter is
// the linefeed byte (decimal 10).
var line: String? = socket.receiveString(untilByte: 10)
if socket.lastMethodSuccess == false {
print("\(socket.lastErrorText!)")
return
}
print("\(line!)")
}