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fix net/url delays to be thread-safe

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This commit is contained in:
Matthew Flatt 2015-11-20 06:17:52 -07:00
parent 0b1d0610f2
commit 877264c63b
1 changed files with 4 additions and 7 deletions
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11
racket/collects/net/url.rkt
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@ -46,7 +46,7 @@
null])))
(define current-proxy-servers-promise
(make-parameter (delay (env->c-p-s-entries '("plt_http_proxy" "http_proxy")))))
(make-parameter (delay/sync (env->c-p-s-entries '("plt_http_proxy" "http_proxy")))))
(define (proxy-servers-guard v)
(unless (and (list? v)
@ -70,8 +70,7 @@
(define current-proxy-servers
(make-derived-parameter current-proxy-servers-promise
(λ (v) (let ((guarded (proxy-servers-guard v)))
(delay guarded)))
proxy-servers-guard
force))
(define (env->n-p-s-entries envars)
@ -83,7 +82,7 @@
[hostnames (string-split hostnames ",")])))
(define current-no-proxy-servers-promise
(make-parameter (delay (no-proxy-servers-guard (env->n-p-s-entries '("plt_no_proxy" "no_proxy"))))))
(make-parameter (delay/sync (no-proxy-servers-guard (env->n-p-s-entries '("plt_no_proxy" "no_proxy"))))))
(define (no-proxy-servers-guard v)
(unless (and (list? v)
@ -103,9 +102,7 @@
(define current-no-proxy-servers
(make-derived-parameter current-no-proxy-servers-promise
(λ (v)
(let ((guarded (no-proxy-servers-guard v)))
(delay guarded)))
no-proxy-servers-guard
force))
(define (proxy-server-for url-schm (dest-host-name #f))