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libipc-old/zig-impl/misc/snd-rcv.zig

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Zig

const std = @import("std");
const testing = std.testing;
const net = std.net;
const fmt = std.fmt;
const mem = std.mem;
const print = std.debug.print;
fn disconnect(stream: net.Stream) void { stream.close(); }
fn connect(path: []const u8) !net.Stream {
return try net.connectUnixSocket(path);
}
fn receive_msg(stream: net.Stream) !void {
var buffer: [1000]u8 = undefined;
var fbs = std.io.fixedBufferStream(&buffer);
var reader = fbs.reader();
_ = try stream.read(buffer[0..]);
const msg_type = try reader.readByte();
const msg_len = try reader.readIntBig(u32);
const msg_payload = buffer[5..5+msg_len];
print ("type: {}, len {}, content: {s}\n"
, .{msg_type, msg_len, msg_payload});
}
fn send_msg(stream: net.Stream) !usize {
var buffer: [1000]u8 = undefined;
var fbs = std.io.fixedBufferStream(&buffer);
var writer = fbs.writer();
try writer.writeByte(2); // DATA
const message = "hello everyone";
try writer.writeIntBig(u32, message.len);
_ = try writer.write(message);
return stream.write (fbs.getWritten());
}
pub fn main() !u8 {
var path = "/tmp/.TEST_USOCK";
print("Connection to {s}...\n", .{path});
var stream = try connect(path);
print("Connected! Sending a message...\n", .{});
const bytecount = try send_msg(stream);
print("Sent {} bytes! Waiting a message...\n", .{bytecount});
try receive_msg(stream);
print("Received a message! Disconnection...\n", .{});
disconnect(stream);
print("Disconnected!\n", .{});
return 0;
}