Danny Tuppeny
d0a7ef4459
The DAP APIs for breakpoints send the whole set of breakpoints for a given file at once. Previously, we would just delete all breakpoints and then re-add them all, however since we added support for resolving breakpoints, this can result in all breakpoints in a file flickering to unresolved then back to resolved (as well as generally being slower). This change splits the method that would replace all breakpoints into methods for add+remove, and then skips over any breakpoints (in setBreakpoints) that already match breakpoints we have. Fixes https://github.com/Dart-Code/Dart-Code/issues/4678 Change-Id: I489c6c295bac3ebd3a0851895a7a81e330d571e9 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/433700 Reviewed-by: Ben Konyi <bkonyi@google.com> Reviewed-by: Derek Xu <derekx@google.com> Commit-Queue: Derek Xu <derekx@google.com>
A package used to spawn the Dart Developer Service (DDS), which is used to communicate with a Dart VM Service instance and provide extended functionality to the core VM Service Protocol.
Functionality
Existing VM Service clients can issue both HTTP, websocket, and SSE requests to a running DDS instance as if it were an instance of the VM Service itself. If a request corresponds to an RPC defined in the VM Service Protocol, DDS will forward the request and return the response from the VM Service. Requests corresponding to an RPC defined in the DDS Protocol will be handled directly by the DDS instance.
SSE Support
For certain web clients it may be preferable or required to communicate with DDS using server-sent events (SSE). DDS has an SSE handler listening for requests on /$debugHandler.
SSE and package:vm_service example
import 'package:sse/sse.dart';
import 'package:vm_service/vm_service.dart';
void main() {
// Establish connection with DDS using SSE.
final ddsChannel = SseClient('${ddsUri}\$debugHandler');
// Wait for ddsChannel to be established
await ddsChannel.onOpen.first;
// Initialize VmService using the sink and stream from ddsChannel.
final vmService = VmService(
ddsChannel.stream,
(e) => ddsChannel.sink.add(e),
);
// You're ready to query DDS and the VM service!
print(await vmService.getVersion());
}