@@ -21,8 +21,11 @@ (define-module (guix eris)
#:use-module (eris)
#:use-module (eris fs)
#:use-module (eris sqlite)
+ #:use-module (eris coap)
#:use-module (eris read-capability)
+ #:use-module (coap tcp)
+
#:use-module (web uri)
#:use-module (ice-9 match)
#:use-module (srfi srfi-171)
@@ -42,27 +45,57 @@ (define %eris-store-url
(define %guix-eris-convergence-secret
(make-parameter %null-convergence-secret))
+(define (open-coap-unix-socket path)
+ (let ((sock (socket PF_UNIX SOCK_STREAM 0)))
+ ;; Release FD on exec
+ (fcntl sock F_SETFD FD_CLOEXEC)
+ ;; Set to non-blocking
+ (fcntl sock F_SETFL (logior O_NONBLOCK (fcntl sock F_GETFL)))
+ ;; Connect
+ (connect sock AF_UNIX path)
+
+ ;; Initialize the CoAP connection
+ (open-socket-for-uri #f
+ #:socket sock
+ ;; Allow up to 64 in-flight requests
+ #:nstart 64)))
+
(define (guix-eris-block-reducer)
"Returns an ERIS block reducer."
- (if (uri? (%eris-store-url))
- (match (uri-scheme (%eris-store-url))
+ (let ((store-url (%eris-store-url)))
+ (if (uri? store-url)
+ (match (uri-scheme store-url)
+
+ ;; Store blocks in an SQLite database (see
+ ;; https://eris.codeberg.page/eer/sqlite.xml)
+ ('sqlite
+ (eris-sqlite-block-reducer (uri-path store-url)))
- ;; Store blocks in an SQLite database (see
- ;; https://eris.codeberg.page/eer/sqlite.xml)
- ('sqlite
- (eris-sqlite-block-reducer (uri-path (%eris-store-url))))
+ ;; Connect to a CoAP ERIS store over a Unix socket
+ ('coap+unix
+ ;; Wrap the eris-coap-block-reducer to close the provided connection.
+ (let ((ecbr (eris-coap-block-reducer
+ (build-uri 'coap #:path ".well-known/eris")
+ #:nstart 64
+ #:connection (open-coap-unix-socket
+ (uri-path store-url)))))
+ (case-lambda
+ (() (ecbr))
+ ((conn ref-block) (ecbr conn ref-block))
+ ((conn)
+ (ecbr conn)
+ (close-port conn)))))
- ;; TODO
- ;; ('coap+unix #f)
- ;; ('coap+tcp #f)
+ ;; TODO
+ ;; ('coap+tcp #f)
- (_ (error "Don't know how to handle ERIS store URL "
- (uri->string (%eris-store-url)))))
+ (_ (error "Don't know how to handle ERIS store URL "
+ (uri->string (%eris-store-url)))))
- ;; If no ERIS store URL is provided we just compute the ERIS URN without
- ;; storing the blocks anywhere. As dummy block-reducer we use `rcount` from
- ;; SRFI-171 that counts the number of blocks.
- rcount))
+ ;; If no ERIS store URL is provided we just compute the ERIS URN without
+ ;; storing the blocks anywhere. As dummy block-reducer we use `rcount` from
+ ;; SRFI-171 that counts the number of blocks.
+ rcount)))
(define* (eris-encode-store-item item)
"Encodes the store item ITEM using ERIS and returns the read capability as
@@ -54,6 +54,7 @@ (define-module (guix scripts publish)
#:use-module (guix store)
#:use-module ((guix serialization) #:select (write-file))
#:use-module (guix eris)
+ #:use-module (fibers)
#:use-module (zlib)
#:autoload (lzlib) (call-with-lzip-output-port
make-lzip-output-port)
@@ -655,7 +656,13 @@ (define* (bake-narinfo+nar cache item
(let ((compression (actual-compressions item compressions))
(eris-urn (if eris?
- (eris-encode-store-item item)
+ ;; Encode with fibers.
+ ;; XXX: There seems to be some buggy interactions when
+ ;; running a fibers scheduler and connecting to the
+ ;; store.
+ (run-fibers (lambda ()
+ (eris-encode-store-item item))
+ #:drain? #t)
#f)))
(for-each (cut compress-nar cache item <>) compressions)