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libipc-old
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Fix switch read message + add print debug.

master
Philippe Pittoli 2023-01-18 23:55:48 +01:00
parent 9dc4cfa003
commit 3123051ef0
6 changed files with 42 additions and 31 deletions
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2
zig-impl/src/context.zig
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@ -681,7 +681,7 @@ test "Context - creation, echo once" {
try c.server_path("simple-context-test", writer);
var path = fbs.getWritten();
// SERVER SIDE: creating a service.
// SERVER SIDE: creating a service.
var server = c.server_init("simple-context-test") catch |err| switch(err) {
error.FileNotFound => {
print ("\nError: cannot init server at {s}\n", .{path});

2
zig-impl/src/ipcd.zig
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@ -139,7 +139,7 @@ fn create_service() !void {
// 3. connect whether asked to and send a message
if (final_destination) |dest| {
print("Let's contact {s} (service requested: {s})\n"
print("Connecting to {s} (service requested: {s})\n"
, .{dest, service_to_contact});
var uri = URI.read(dest);

7
zig-impl/src/pongd.zig
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@ -15,7 +15,7 @@ const builtin = @import("builtin");
const native_os = builtin.target.os.tag;
const print = std.debug.print;
const testing = std.testing;
const print_eq = @import("./util.zig").print_eq;
const util = @import("./util.zig");
fn create_service() !void {
const config = .{.safety = true};
@ -81,8 +81,9 @@ fn create_service() !void {
.MESSAGE => {
if (some_event.m) |m| {
print("New message: {}\n", .{m});
print("Let's echo it...\n", .{});
print("New message ({} bytes)\n", .{m.payload.len});
util.print_message ("RECEIVED MESSAGE", m);
print("Echoing it...\n", .{});
try ctx.schedule(m);
}
else {

31
zig-impl/src/switch.zig
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@ -11,7 +11,8 @@ const CBEventType = ipc.CBEvent.Type;
const Allocator = std.mem.Allocator;
const print_eq = @import("./util.zig").print_eq;
const util = @import("./util.zig");
const print_eq = util.print_eq;
const print = std.debug.print;
const Event = ipc.Event;
@ -80,7 +81,6 @@ pub const SwitchDB = struct {
var message_size: u32 = @truncate(u32, buffer.len);
var r: CBEventType = managedconnection.in(fd, &buffer, &message_size);
print ("MESSAGE READ: {} (from {} to {})\n", .{r, fd, managedconnection.dest});
switch (r) {
// The message should be ignored (protocol specific).
CBEventType.IGNORE => { return null; },
@ -89,9 +89,9 @@ pub const SwitchDB = struct {
// TODO: better allocator?
// TODO: better errors?
var message: Message
= Message.init(managedconnection.dest
, std.heap.c_allocator
, buffer[0..message_size]) catch {
= Message.read(managedconnection.dest
, buffer[0..message_size]
, std.heap.c_allocator) catch {
return error.generic;
};
return message;
@ -295,44 +295,27 @@ test "nuke 'em" {
}
fn default_in (origin: i32, mcontent: [*]u8, mlen: *u32) CBEventType {
// print ("receiving a message originated from {}\n", .{origin});
// This may be kinda hacky, idk.
var stream: net.Stream = .{ .handle = origin };
var packet_size: usize = stream.read(mcontent[0..mlen.*]) catch return CBEventType.ERROR;
// Let's handle this as a disconnection.
if (packet_size < 4) {
print("message is less than 4 bytes ({} bytes)\n", .{packet_size});
// print("message is less than 4 bytes ({} bytes)\n", .{packet_size});
return CBEventType.FD_CLOSING;
}
mlen.* = @truncate(u32, packet_size);
var hexbuf: [4000]u8 = undefined;
var hexfbs = std.io.fixedBufferStream(&hexbuf);
var hexwriter = hexfbs.writer();
hexdump.hexdump(hexwriter, "DEFAULT IN: MESSAGE RECEIVED", mcontent[0..packet_size]) catch unreachable;
print("{s}\n", .{hexfbs.getWritten()});
print("packet_size {}, mlen.* {}\n", .{packet_size, mlen.*});
return CBEventType.NO_ERROR;
}
fn default_out (fd: i32, mcontent: [*]const u8, mlen: u32) CBEventType {
// print ("sending a message originated from {}\n", .{origin});
// Message contains the fd, no need to search for the right structure to copy,
// let's just recreate a Stream from the fd.
var to_send = mcontent[0..mlen];
var hexbuf: [4000]u8 = undefined;
var hexfbs = std.io.fixedBufferStream(&hexbuf);
var hexwriter = hexfbs.writer();
hexdump.hexdump(hexwriter, "DEFAULT OUT: MESSAGE TO SEND", to_send) catch unreachable;
print("{s}\n", .{hexfbs.getWritten()});
var stream = net.Stream { .handle = fd };
var bytes_sent = stream.write (to_send) catch return CBEventType.ERROR;
print("sent {} to {}\n", .{bytes_sent, fd});
_ = stream.write (to_send) catch return CBEventType.ERROR;
return CBEventType.NO_ERROR;
}

14
zig-impl/src/tcpd.zig
View File

@ -135,8 +135,20 @@ fn create_service() !void {
var size = try client.stream.read(&buffer);
var service_to_contact = buffer[0..size];
if (service_to_contact.len == 0) {
print("Error, no service provided, closing the connection.\n", .{});
client.stream.close();
continue;
}
print ("Ask to connect to service [{s}].\n", .{service_to_contact});
var servicefd = try ctx.connect_service (service_to_contact);
var servicefd = ctx.connect_service (service_to_contact) catch |err| {
print("Error while connecting to the service {s}: {}.\n"
, .{service_to_contact, err});
print ("Closing the connection.\n", .{});
client.stream.close();
continue;
};
errdefer ctx.close_fd (servicefd) catch {};
print ("Send a message to inform remote TCPd that the connection is established.\n", .{});

17
zig-impl/src/util.zig
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@ -1,7 +1,10 @@
const std = @import("std");
// const hexdump = @import("./hexdump.zig");
const hexdump = @import("./hexdump.zig");
const testing = std.testing;
const print = std.debug.print;
const Message = @import("./message.zig").Message;
/// A VERY LIGHT and INCOMPLETE way of decoding URI.
/// DO NOT USE IT UNLESS YOU KNOW WHAT TO EXPECT.
pub const URI = struct {
@ -34,6 +37,18 @@ test "URI simple decoding" {
try testing.expectEqualSlices(u8, uri.path, "some-path");
}
pub fn print_buffer (header: []const u8, buffer: []const u8) void {
var hexbuf: [4000]u8 = undefined;
var hexfbs = std.io.fixedBufferStream(&hexbuf);
var hexwriter = hexfbs.writer();
hexdump.hexdump(hexwriter, header, buffer) catch unreachable;
print("{s}\n", .{hexfbs.getWritten()});
}
pub fn print_message (header: []const u8, m: Message) void {
print_buffer (header, m.payload);
}
pub fn print_eq(expected: anytype, obj: anytype) !void {
var buffer: [4096]u8 = undefined;
var fbs = std.io.fixedBufferStream(&buffer);