diff options
| -rw-r--r-- | sly/repl.scm | 32 |
1 files changed, 29 insertions, 3 deletions
diff --git a/sly/repl.scm b/sly/repl.scm index 312d89a..0e22ade 100644 --- a/sly/repl.scm +++ b/sly/repl.scm @@ -25,13 +25,39 @@ #:use-module (system repl coop-server) #:use-module (system repl server) #:use-module (sly agenda) - #:export (start-sly-repl)) + #:use-module (sly game) + #:export (start-sly-repl + resume-game-loop)) (define* (start-sly-repl #:optional (port (make-tcp-server-socket #:port 37146))) "Start a cooperative REPL server that listens on the given PORT. By default, this port is 37146. Additionally, a process is scheduled to poll the REPL server upon every tick of the game loop." - (let ((server (spawn-coop-repl-server port))) + (let ((server (spawn-coop-repl-server port)) + (error-agenda (make-agenda))) (schedule-each (lambda () - (poll-coop-repl-server server))))) + (poll-coop-repl-server server))) + ;; Pause game and handle errors when they occur. + (add-hook! after-game-loop-error-hook + (lambda () + (call-with-prompt + 'sly-repl-error-prompt + (lambda () + (with-agenda error-agenda + (while #t + (poll-coop-repl-server server) + (tick-agenda!) + (usleep 10)))) + (lambda (cont) + ;; Discard the continuation + #f)))))) + +(define (resume-game-loop) + "Abort from the error handling loop prompt and resume the game +loop." + ;; We need to use the agenda so that the prompt is not aborted + ;; within the REPL, which would break the client session. + (schedule + (lambda () + (abort-to-prompt 'sly-repl-error-prompt)))) |