Wait for a Socket to Become Readable

See more Socket/SSL/TLS Examples

Demonstrates Socket.SelectForReading, which waits for read-ready activity on the socket, or on any contained socket when the object is a socket set. It returns 1 if ready, 0 on timeout, or -1 on error.

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    const socket = try chilkat.Socket.init();
    defer socket.deinit();

    // Connect to the server using TLS.
    const b_tls = true;
    const max_wait_ms = 5000;
    socket.connect("example.com", 5000, b_tls, max_wait_ms) catch {
        std.debug.print("{s}\n", .{try socket.getLastErrorText(alloc)});
        return;
    };

    // Wait up to 5 seconds for read-ready activity on the socket (or, for a socket set, on any contained
    // socket).  Returns 1 if ready, 0 on timeout, or -1 on error.
    const ready = socket.selectForReading(5000);
    if (ready < 0) {
        std.debug.print("{s}\n", .{try socket.getLastErrorText(alloc)});
        return;
    }

    if (ready != 1) {
        std.debug.print("No data became available before the timeout.\n", .{});
        return;
    }

    std.debug.print("The socket has data ready to read.\n", .{});
}