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const std = @import("std");
const zaprus = @import("zaprus");
// Opaque types for C API
const ZaprusClient = opaque {};
const ZaprusConnection = opaque {};
const alloc = std.heap.c_allocator;
const io = std.Io.Threaded.global_single_threaded.io();
export fn zaprus_init_client() ?*ZaprusClient {
const client = alloc.create(zaprus.Client) catch return null;
client.* = zaprus.Client.init() catch {
alloc.destroy(client);
return null;
};
return @ptrCast(client);
}
export fn zaprus_deinit_client(client: ?*ZaprusClient) void {
const c: ?*zaprus.Client = @ptrCast(@alignCast(client));
if (c) |zc| {
zc.deinit();
alloc.destroy(zc);
}
}
export fn zaprus_client_send_relay(
client: ?*ZaprusClient,
payload: [*c]const u8,
payload_len: usize,
dest: [*c]const u8,
) c_int {
const c: ?*zaprus.Client = @ptrCast(@alignCast(client));
const zc = c orelse return 1;
zc.sendRelay(io, payload[0..payload_len], dest[0..4].*) catch return 1;
return 0;
}
export fn zaprus_connect(
client: ?*ZaprusClient,
payload: [*c]const u8,
payload_len: usize,
) ?*ZaprusConnection {
const c: ?*zaprus.Client = @ptrCast(@alignCast(client));
const zc = c orelse return null;
const connection = alloc.create(zaprus.Connection.Default) catch return null;
connection.* = zc.connect(io, payload[0..payload_len]) catch {
alloc.destroy(connection);
return null;
};
return @ptrCast(connection);
}
export fn zaprus_deinit_connection(connection: ?*ZaprusConnection) void {
const c: ?*zaprus.Connection.Default = @ptrCast(@alignCast(connection));
if (c) |zc| {
alloc.destroy(zc);
}
}
export fn zaprus_connection_next(
connection: ?*ZaprusConnection,
out: [*c]u8,
capacity: usize,
out_len: *usize,
) c_int {
const c: ?*zaprus.Connection.Default = @ptrCast(@alignCast(connection));
const zc = c orelse return 1;
const result = zc.next(io, out[0..capacity]) catch return 1;
out_len.* = result.len;
return 0;
}
export fn zaprus_connection_send(
connection: ?*ZaprusConnection,
payload: [*c]const u8,
payload_len: usize,
) c_int {
const c: ?*zaprus.Connection.Default = @ptrCast(@alignCast(connection));
const zc = c orelse return 1;
zc.send(io, payload[0..payload_len]) catch return 1;
return 0;
}
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