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syndicate-2017
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Split out reloader-mixin and reloader-mixin*

This commit is contained in:
Tony Garnock-Jones 2016-12-07 09:47:53 +13:00
parent d9905df4e5
commit b87639b7a4
1 changed files with 53 additions and 34 deletions
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33
racket/syndicate/reload.rkt
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@ -7,7 +7,9 @@
stop-when-reloaded
spawn-reloader
spawn-reloader*)
spawn-reloader*
reloader-mixin
reloader-mixin*)
(define-logger syndicate/reload)
@ -36,13 +38,32 @@
(spawn-reloader* 'module-path))
(define (spawn-reloader* module-path)
(match (module-path->path-string module-path)
[#f #f]
[pathstr
(supervise #:name (list 'reloader-supervisor pathstr)
(actor #:name 'reloader
(reloader-mixin** module-path pathstr)))
#t]))
(define-syntax-rule (reloader-mixin module-path)
(reloader-mixin* 'module-path))
(define (reloader-mixin* module-path)
(define pathstr (module-path->path-string module-path))
(when (not pathstr)
(error 'reloader-mixin "Cannot deduce source path from module-path ~v" module-path))
(reloader-mixin** module-path pathstr))
(define (module-path->path-string module-path)
(define mpi (module-path-index-join module-path #f))
(define rpath (module-path-index-resolve mpi))
(define path (let ((p (resolved-module-path-name rpath)))
(if (pair? p) (car p) p)))
(if (path? path)
(spawn-reloader** module-path (path->string path))
(log-syndicate/reload-error "Could not process module-path ~v" module-path)))
(path->string path)
(begin (log-syndicate/reload-error "Could not process module-path ~v" module-path)
#f)))
(define counter
(let ((count 0))
@ -50,9 +71,7 @@
(begin0 count
(set! count (+ count 1))))))
(define (spawn-reloader** module-path pathstr)
(supervise #:name (list 'reloader-supervisor pathstr)
(actor #:name 'reloader
(define (reloader-mixin** module-path pathstr)
(field [reloading? #f])
(define (reload!)
(when (not (reloading?))
@ -81,4 +100,4 @@
(if (latest-version)
(reload!)
(log-syndicate/reload-warning "Module ~v does not exist" pathstr))
(previous-version (latest-version)))))))
(previous-version (latest-version)))))