112 lines
3.2 KiB
Zig
112 lines
3.2 KiB
Zig
const std = @import("std");
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const os = std.os;
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const ipc = @import("ipc");
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const hexdump = ipc.hexdump;
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const Message = ipc.Message;
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const util = ipc.util;
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// Import send_fd this way in order to produce docs for exchange-fd functions.
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const exchange_fd = ipc.exchangefd;
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const send_fd = exchange_fd.send_fd;
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const builtin = @import("builtin");
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const native_os = builtin.target.os.tag;
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const print = std.debug.print;
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const testing = std.testing;
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fn create_service() !void {
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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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defer ctx.deinit(); // There. Can't leak. Isn't Zig wonderful?
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// SERVER SIDE: creating a service.
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_ = try ctx.server_init("pong");
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// signal handler, to quit when asked
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const S = struct {
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var should_quit: bool = false;
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fn handler(sig: i32, info: *const os.siginfo_t, _: ?*const anyopaque) callconv(.C) void {
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print ("A signal has been received: {}\n", .{sig});
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// Check that we received the correct signal.
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switch (native_os) {
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.netbsd => {
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if (sig != os.SIG.HUP or sig != info.info.signo)
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return;
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},
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else => {
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if (sig != os.SIG.HUP and sig != info.signo)
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return;
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},
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}
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should_quit = true;
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}
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};
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var sa = os.Sigaction{
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.handler = .{ .sigaction = &S.handler },
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.mask = os.empty_sigset, // Do not mask any signal.
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.flags = os.SA.SIGINFO,
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};
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// Quit on SIGHUP (kill -1).
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try os.sigaction(os.SIG.HUP, &sa, null);
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var some_event: ipc.Event = undefined;
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ctx.timer = 20000; // 2 seconds
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var count: u32 = 0;
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while(! S.should_quit) {
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some_event = try ctx.wait_event();
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switch (some_event.t) {
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.TIMER => {
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print("\rTimer! ({})", .{count});
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count += 1;
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},
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.CONNECTION => {
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print("New connection: {} so far!\n", .{ctx.pollfd.items.len});
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},
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.DISCONNECTION => {
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print("User {} disconnected, {} remainaing.\n"
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, .{some_event.origin, ctx.pollfd.items.len});
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},
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.MESSAGE_RX => {
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if (some_event.m) |m| {
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print("New message ({} bytes)\n", .{m.payload.len});
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util.print_message ("RECEIVED MESSAGE", m);
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print("Echoing it...\n", .{});
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try ctx.schedule(m);
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}
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else {
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print("Error while receiving new message.\n", .{});
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print("Ignoring...\n", .{});
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}
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},
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.MESSAGE_TX => {
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print("Message sent.\n", .{});
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},
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else => {
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print("Error: unexpected event: {}\n", .{some_event});
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print("Let's suicide.\n", .{});
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break;
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},
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}
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}
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print("Goodbye\n", .{});
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}
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pub fn main() !u8 {
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try create_service();
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return 0;
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}
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