cbaines/guile-knots
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Add display, simple-format and format variants

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Which call put-bytevector for performing output. When used in
combination with an unbuffered port, this should be safer than using
the normal Guile procedures, as I think it'll avoid writing to the
buffers, while still avoiding single character at a time output.

More research is needed though in to how to output to stdout/stderr
when using fibers with a parallelism greater than 1.
This commit is contained in:
Christopher Baines 2026-01-12 10:00:35 +00:00
parent 39ae5177f2
commit 094259b049
3 changed files with 69 additions and 25 deletions
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10
knots/resource-pool.scm
View file

@ -90,7 +90,7 @@
(set-record-type-printer!
<resource-pool>
(lambda (resource-pool port)
(display
(display/knots
(simple-format #f "#<resource-pool name: \"~A\">"
(resource-pool-name resource-pool))
port)))
@ -488,8 +488,8 @@
(stack-ref stack 3)
'%exception
(list exn))))))
(display error-string
(current-error-port)))
(display/knots error-string
(current-error-port)))
(raise-exception exn))
(lambda ()
(start-stack
@ -1146,8 +1146,8 @@
(stack-ref stack 3)
'%exception
(list exn))))))
(display error-string
(current-error-port)))
(display/knots error-string
(current-error-port)))
(raise-exception exn))
(lambda ()
(start-stack

28
knots/web-server.scm
View file

@ -289,7 +289,7 @@ on the procedure being called at any particular time."
(not (memq 'close (response-connection response))))
(define (default-read-request-exception-handler exn)
(display "While reading request:\n" (current-error-port))
(display/knots "While reading request:\n" (current-error-port))
(print-exception
(current-error-port)
#f
@ -302,12 +302,12 @@ on the procedure being called at any particular time."
(if (and (exception-with-origin? exn)
(string=? (exception-origin exn)
"fport_write"))
(simple-format
(simple-format/knots
(current-error-port)
"~A ~A: error replying to client\n"
(request-method request)
(uri-path (request-uri request)))
(simple-format
(simple-format/knots
(current-error-port)
"knots web server: ~A ~A: exception replying to client: ~A\n"
(request-method request)
@ -329,8 +329,8 @@ on the procedure being called at any particular time."
(print-backtrace-and-exception/knots
exn
#:port port)))))
(display error-string
(current-error-port)))
(display/knots error-string
(current-error-port)))
(values (build-response #:code 500)
;; TODO Make this configurable
@ -476,13 +476,17 @@ on the procedure being called at any particular time."
(unless (and (exception-with-origin? exn)
(string=? (exception-origin exn)
"fport_read"))
(display "knots web-server, exception in client loop:\n"
(current-error-port))
(print-exception
(current-error-port)
#f
'%exception
(list exn)))
(display/knots "knots web-server, exception in client loop:\n"
(current-error-port))
(display/knots
(call-with-output-string
(lambda (port)
(print-exception
port
#f
'%exception
(list exn))))
(current-error-port)))
#t)
(lambda ()
(or