Add several example programs.
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132743442b
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06a01f2b4b
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const std = @import("std");
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const print = std.debug.print;
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pub fn main() !u8 {
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print("First close!\n", .{});
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std.os.close(1);
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print("SECOND close!\n", .{});
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std.os.close(1);
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print("Will it be printed?\n", .{});
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return 0;
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}
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const msg_type = @intToEnum(Message.Type, try reader.readByte());
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try writer.writeByte(@enumToInt(self.t));
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var hexbuf: [4000]u8 = undefined;
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var hexfbs = std.io.fixedBufferStream(&hexbuf);
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var hexwriter = hexfbs.writer();
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try hexdump.hexdump(hexwriter, "Message.read input buffer", buffer);
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print("{s}\n", .{hexfbs.getWritten()});
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const std = @import("std");
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const net = std.net;
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const print = std.debug.print;
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const receive_fd = @import("./exchange-fd.zig").receive_fd;
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fn disconnect(stream: *net.StreamServer) void { stream.close(); }
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fn server_init() net.StreamServer {
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// no reuse_address and default kernel_backlog
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return net.StreamServer.init(.{});
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}
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fn waiting_for_connection(stream: *net.StreamServer
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, path: []const u8) !net.StreamServer.Connection {
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var address = try net.Address.initUnix(path);
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try stream.listen(address);
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return stream.accept();
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}
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fn remove_unix_socket(path: []const u8) void {
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std.fs.deleteFileAbsolute(path) catch |err| switch(err) {
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else => { print("error: {}\n", .{err}); }
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};
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}
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fn add_line_from_fd(fd: i32) !void {
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_ = try std.os.write(fd, "SECOND LINE\n");
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std.os.close(fd);
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}
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pub fn main() !u8 {
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var path = "/tmp/TEST_EXCHANGE_FD";
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print("Init UNIX server to {s}...\n", .{path});
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var stream = server_init();
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defer stream.deinit();
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print("Waiting for a connection...\n", .{});
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var connection = try waiting_for_connection(&stream, path);
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defer remove_unix_socket(path);
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print("Someone is connected! Receiving a file descriptor...\n", .{});
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var msgbuffer: [1500]u8 = undefined;
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var msgsize: usize = 0;
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var fd = try receive_fd(connection.stream.handle, msgbuffer[0..], &msgsize);
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print("received fd: {}, payload: {s}\n", .{fd, msgbuffer[0..msgsize - 1]});
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print("FD received, writing a line into the file...\n", .{});
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try add_line_from_fd(fd);
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print("Disconnection...\n", .{});
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disconnect(&stream);
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print("Disconnected!\n", .{});
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return 0;
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}
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const std = @import("std");
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const net = std.net;
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const send_fd = @import("./exchange-fd.zig").send_fd;
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const print = std.debug.print;
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fn disconnect(stream: net.Stream) void { stream.close(); }
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fn connect(path: []const u8) !net.Stream {
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return try net.connectUnixSocket(path);
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}
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fn add_line_in_file() !void {
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var cwd = std.fs.cwd();
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var f = try cwd.createFile("some-file.log", .{.read = true});
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defer f.close();
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var writer = f.writer();
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try writer.print("hello\n", .{});
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}
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pub fn main() !u8 {
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var path = "/tmp/TEST_EXCHANGE_FD";
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print("Connection to {s}...\n", .{path});
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var stream = try connect(path);
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print("Connected! Opening a file...\n", .{});
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var file = try std.fs.cwd().createFile("some-file.log", .{.read = true});
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defer file.close();
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print("File opened! Writing some data into it...\n", .{});
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var writer = file.writer();
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try writer.print("hello this is the first process\n", .{});
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print("Data written! Sending its fd...\n", .{});
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send_fd(stream.handle, "hello this is the payload", file.handle);
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print("Sent fd! Disconnection...\n", .{});
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disconnect(stream);
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print("Disconnected!\n", .{});
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return 0;
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}
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const std = @import("std");
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const hexdump = @import("./hexdump.zig");
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const net = std.net;
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const fmt = std.fmt;
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const os = std.os;
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const print = std.debug.print;
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fn say_hello(some_number: i32) void {
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print ("hello number {}\n", .{some_number});
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}
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fn say_coucou(some_number: i32) void {
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print ("coucou number {}\n", .{some_number});
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}
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pub fn main() !u8 {
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var fp: *const fn (i32) void = say_hello;
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// print ("currently fp {any}\n", .{fp});
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fp(10);
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fp = say_coucou;
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// print ("currently fp {p}\n", .{fp.?});
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fp(20);
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return 0;
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}
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const std = @import("std");
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const net = std.net;
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const fmt = std.fmt;
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const os = std.os;
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const print = std.debug.print;
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const testing = std.testing;
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const print_eq = @import("./util.zig").print_eq;
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const URI = @import("./util.zig").URI;
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fn connect_tcp(allocator: std.mem.Allocator) !net.Stream {
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var buffer: [1000]u8 = undefined;
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var fbs = std.io.fixedBufferStream(&buffer);
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var writer = fbs.writer();
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var address = std.process.getEnvVarOwned(allocator, "ADDRESS") catch |err| switch(err) {
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error.EnvironmentVariableNotFound => blk: {
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print("no ADDRESS envvar: connecting on 127.0.0.1:9000\n", .{});
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break :blk try allocator.dupe(u8, "127.0.0.1:9000");
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},
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else => { return err; },
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};
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defer allocator.free(address);
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try writer.print("{s}", .{address});
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var tcp_address = fbs.getWritten();
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var iterator = std.mem.split(u8, tcp_address, ":");
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var real_tcp_address = iterator.first();
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var real_tcp_port = try std.fmt.parseUnsigned(u16, iterator.rest(), 10);
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print ("TCP address [{s}] port [{}]\n", .{real_tcp_address, real_tcp_port});
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var socket_addr = try net.Address.parseIp(real_tcp_address, real_tcp_port);
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var stream = try net.tcpConnectToAddress(socket_addr);
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return stream;
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}
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pub fn main() !u8 {
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const config = .{.safety = true};
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var gpa = std.heap.GeneralPurposeAllocator(config){};
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defer _ = gpa.deinit();
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const allocator = gpa.allocator();
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var stream = try connect_tcp(allocator);
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_ = try stream.write("coucou");
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stream.close();
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return 0;
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}
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const std = @import("std");
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const net = std.net;
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const fmt = std.fmt;
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const os = std.os;
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const print = std.debug.print;
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const testing = std.testing;
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const print_eq = @import("./util.zig").print_eq;
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const URI = @import("./util.zig").URI;
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fn init_tcp_server(allocator: std.mem.Allocator) !net.StreamServer {
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var buffer: [1000]u8 = undefined;
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var fbs = std.io.fixedBufferStream(&buffer);
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var writer = fbs.writer();
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var address = std.process.getEnvVarOwned(allocator, "ADDRESS") catch |err| switch(err) {
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error.EnvironmentVariableNotFound => blk: {
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print("no ADDRESS envvar: TCPd will listen on 127.0.0.1:9000\n", .{});
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break :blk try allocator.dupe(u8, "127.0.0.1:9000");
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},
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else => { return err; },
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};
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defer allocator.free(address);
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try writer.print("{s}", .{address});
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var tcp_address = fbs.getWritten();
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var iterator = std.mem.split(u8, tcp_address, ":");
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var real_tcp_address = iterator.first();
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var real_tcp_port = try std.fmt.parseUnsigned(u16, iterator.rest(), 10);
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print ("TCP address [{s}] port [{}]\n", .{real_tcp_address, real_tcp_port});
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var server = net.StreamServer.init(.{.reuse_address = true});
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var socket_addr = try net.Address.parseIp(real_tcp_address, real_tcp_port);
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try server.listen(socket_addr);
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return server;
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}
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fn accept_read(server: *net.StreamServer) !void {
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var client = try server.accept(); // net.StreamServer.Connection
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var buffer: [1000]u8 = undefined;
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var size = try client.stream.read(&buffer);
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print ("received: {s}\n", .{buffer[0..size]});
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client.stream.close();
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}
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pub fn main() !u8 {
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const config = .{.safety = true};
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var gpa = std.heap.GeneralPurposeAllocator(config){};
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defer _ = gpa.deinit();
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const allocator = gpa.allocator();
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var streamserver = try init_tcp_server(allocator);
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try accept_read(&streamserver);
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return 0;
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}
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const std = @import("std");
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const hexdump = @import("./hexdump.zig");
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const net = std.net;
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const fmt = std.fmt;
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const os = std.os;
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const print = std.debug.print;
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const ipc = @import("./main.zig");
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const Message = ipc.Message;
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pub fn main() !u8 {
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const config = .{.safety = true};
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var gpa = std.heap.GeneralPurposeAllocator(config){};
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defer _ = gpa.deinit();
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const allocator = gpa.allocator();
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var ctx = try ipc.Context.init(allocator);
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ctx.deinit(); // There. Can't leak. Isn't Zig wonderful?
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print("Goodbye\n", .{});
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return 0;
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}
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const std = @import("std");
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const ipc = @import("./ipc.zig");
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const hexdump = @import("./hexdump.zig");
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const print = std.debug.print;
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pub fn main() !void {
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var allocator = std.heap.c_allocator;
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var buffer = [_]u8{0} ** 10000;
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var fbs = std.io.fixedBufferStream(&buffer);
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var writer = fbs.writer();
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var m = try ipc.Message.init (9, allocator, "hello this is me!");
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defer m.deinit();
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_ = try m.write(writer);
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var msg_bytes = fbs.getWritten();
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// var hexbuf: [4000]u8 = undefined;
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// var hexfbs = std.io.fixedBufferStream(&hexbuf);
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// var hexwriter = hexfbs.writer();
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// try hexdump.hexdump(hexwriter, "What should be written in output", msg_bytes);
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// print("{s}\n", .{hexfbs.getWritten()});
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var out = std.io.getStdOut();
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_ = try out.write("pong");
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std.time.sleep(1_000_000_000); // wait for 1 seconds
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_ = try out.write(msg_bytes);
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}
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