Testing basic message exchange on a UNIX socket.
parent
ceafe4c84f
commit
ca0d6adbc6
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@ -20,7 +20,7 @@ pub const PollFD = std.ArrayList(i32);
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// Context of the whole networking state.
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pub const Context = struct {
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pub const IPC_HEADER_SIZE = 4; // Size (4 bytes) then content.
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pub const IPC_HEADER_SIZE = 5; // Size (5 bytes) then content.
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pub const IPC_BASE_SIZE = 2000000; // 2 MB, plenty enough space for messages
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pub const IPC_MAX_MESSAGE_SIZE = IPC_BASE_SIZE-IPC_HEADER_SIZE;
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pub const IPC_VERSION = 1;
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@ -213,6 +213,22 @@ pub const Context = struct {
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}
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};
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//test "Simple structures - init, display and memory check" {
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// // origin destination
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// var s = Switch.init(3,8);
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// var payload = "hello!!";
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// // fd type payload
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// var m = Message.init(0, Message.Type.DATA, payload);
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//
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// // type index origin message
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// var e = Event.init(Event.Type.CONNECTION, 5, 8, &m);
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// // CLIENT SIDE: connection to a service.
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// _ = try c.connect(path);
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// // TODO: connection to a server, but switched with clientfd "3".
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// _ = try c.connection_switched(path, 3);
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//}
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// Creating a new thread: testing UNIX communication.
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// This is a client sending a raw "Hello world!" bytestring,
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@ -235,28 +251,10 @@ const CommunicationTestThread = struct {
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var path = fbs.getWritten();
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const socket = try net.connectUnixSocket(path);
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defer socket.close();
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// print("So we're a client now... path: {s}\n", .{path});
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_ = try socket.writer().writeAll("Hello world!");
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}
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};
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test "Simple structures - init, display and memory check" {
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// origin destination
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// var s = Switch.init(3,8);
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// var payload = "hello!!";
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// // fd type payload
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// var m = Message.init(0, Message.Type.DATA, payload);
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//
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// // type index origin message
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// var e = Event.init(Event.Type.CONNECTION, 5, 8, &m);
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// // CLIENT SIDE: connection to a service.
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// _ = try c.connect(path);
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// // TODO: connection to a server, but switched with clientfd "3".
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// _ = try c.connection_switched(path, 3);
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}
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test "Context - creation, display and memory check" {
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const config = .{.safety = true};
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var gpa = std.heap.GeneralPurposeAllocator(config){};
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@ -293,77 +291,77 @@ test "Context - creation, display and memory check" {
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try testing.expectEqualSlices(u8, "Hello world!", buf[0..n]);
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}
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// // TODO:
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// // Creating a new thread: testing UNIX communication.
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// // This is a client sending a raw "Hello world!" bytestring,
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// // not an instance of Message.
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// const ConnectThenSendMessageThread = struct {
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// fn clientFn() !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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//
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// var c = try Context.init(allocator);
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// defer c.deinit(); // There. Can't leak. Isn't Zig wonderful?
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//
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// var path_buffer: [1000]u8 = undefined;
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// var path_fbs = std.io.fixedBufferStream(&path_buffer);
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// var path_writer = path_fbs.writer();
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// try c.server_path("simple-context-test", path_writer);
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// var path = path_fbs.getWritten();
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//
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// // Actual UNIX socket connection.
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// const socket = try net.connectUnixSocket(path);
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// defer socket.close();
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//
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// // Writing message into a buffer.
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// var message_buffer: [1000]u8 = undefined;
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// var message_fbs = std.io.fixedBufferStream(&message_buffer);
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// var message_writer = message_fbs.writer();
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// // 'fd' parameter is not taken into account here (no loop)
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//
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// var m = try Message.init(0, Message.Type.DATA, allocator, "Hello world!");
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// try m.write(message_writer);
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//
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// // print("So we're a client now... path: {s}\n", .{path});
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// _ = try socket.writer().writeAll(message_fbs.getWritten());
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// }
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// };
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//
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//
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// test "Context - creation, echo once" {
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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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//
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// const allocator = gpa.allocator();
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//
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// var c = try Context.init(allocator);
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// defer c.deinit(); // There. Can't leak. Isn't Zig wonderful?
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//
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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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// try c.server_path("simple-context-test", writer);
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// var path = fbs.getWritten();
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//
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// // SERVER SIDE: creating a service.
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// var server = try c.server_init(path);
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// defer server.deinit();
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// defer std.fs.cwd().deleteFile(path) catch {}; // Once done, remove file.
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//
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// const t = try std.Thread.spawn(.{}, ConnectThenSendMessageThread.clientFn, .{});
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// defer t.join();
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//
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// // Server.accept returns a net.StreamServer.Connection.
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// var client = try server.accept();
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// defer client.stream.close();
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// var buf: [1000]u8 = undefined;
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// const n = try client.stream.reader().read(&buf);
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// var m = try Message.read(buf[0..n], allocator);
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//
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// try testing.expectEqual(@as(usize, 12), m.payload.len);
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// try testing.expectEqualSlices(u8, m.payload, "Hello world!");
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// }
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// Creating a new thread: testing UNIX communication.
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// This is a client sending a an instance of Message.
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const ConnectThenSendMessageThread = struct {
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fn clientFn() !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 c = try Context.init(allocator);
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defer c.deinit(); // There. Can't leak. Isn't Zig wonderful?
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var path_buffer: [1000]u8 = undefined;
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var path_fbs = std.io.fixedBufferStream(&path_buffer);
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var path_writer = path_fbs.writer();
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try c.server_path("simple-context-test", path_writer);
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var path = path_fbs.getWritten();
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// Actual UNIX socket connection.
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const socket = try net.connectUnixSocket(path);
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defer socket.close();
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// Writing message into a buffer.
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var message_buffer: [1000]u8 = undefined;
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var message_fbs = std.io.fixedBufferStream(&message_buffer);
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var message_writer = message_fbs.writer();
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// 'fd' parameter is not taken into account here (no loop)
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var m = try Message.init(0, Message.Type.DATA, allocator, "Hello world!");
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defer m.deinit();
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_ = try m.write(message_writer);
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// print("So we're a client now... path: {s}\n", .{path});
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_ = try socket.writer().writeAll(message_fbs.getWritten());
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}
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};
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test "Context - creation, echo once" {
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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 c = try Context.init(allocator);
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defer c.deinit(); // There. Can't leak. Isn't Zig wonderful?
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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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try c.server_path("simple-context-test", writer);
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var path = fbs.getWritten();
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// SERVER SIDE: creating a service.
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var server = try c.server_init(path);
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defer server.deinit();
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defer std.fs.cwd().deleteFile(path) catch {}; // Once done, remove file.
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const t = try std.Thread.spawn(.{}, ConnectThenSendMessageThread.clientFn, .{});
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defer t.join();
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// Server.accept returns a net.StreamServer.Connection.
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var client = try server.accept();
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defer client.stream.close();
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var buf: [1000]u8 = undefined;
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const n = try client.stream.reader().read(&buf);
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var m = try Message.read(buf[0..n], allocator);
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defer m.deinit();
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try testing.expectEqual(@as(usize, 12), m.payload.len);
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try testing.expectEqualSlices(u8, m.payload, "Hello world!");
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}
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@ -39,7 +39,6 @@ test {
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_ = @import("./util.zig");
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}
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// FIRST
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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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@ -53,6 +52,7 @@ fn create_service() !void {
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// SERVER SIDE: creating a service.
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_ = try ctx.server_init(path);
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var some_event = try ctx.wait_event();
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switch (some_event.t) {
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.CONNECTION => {
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@ -77,11 +77,3 @@ 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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// export fn add(a: i32, b: i32) i32 {
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// return a + b;
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// }
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// test "basic add functionality" {
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// try testing.expect(add(3, 7) == 10);
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// }
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