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store: Rename <nix-server> to <store-connection>.

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* guix/store.scm (<nix-server>): Rename to...
(<store-connection>): ... this.  Adjust users accordingly.
(nix-server?, nix-server-major-version)
(nix-server-minor-version, nix-server-socket)
(nix-server-version): Define as deprecated aliases.
* guix/inferior.scm: Adjust accordingly.
* guix/ssh.scm: Likewise.
This commit is contained in:
Ludovic Courtès 2019-01-21 15:32:35 +01:00
parent 3a0b2c6c6e
commit de9fbe9cdc
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GPG key ID: 090B11993D9AEBB5
3 changed files with 94 additions and 75 deletions
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12
guix/inferior.scm
View file

@ -26,9 +26,9 @@ (define-module (guix inferior)
version>? version-prefix?
cache-directory))
#:use-module ((guix store)
#:select (nix-server-socket
nix-server-major-version
nix-server-minor-version
#:select (store-connection-socket
store-connection-major-version
store-connection-minor-version
store-lift))
#:use-module ((guix derivations)
#:select (read-derivation-from-file))
@ -424,8 +424,8 @@ (define (inferior-eval-with-store inferior store code)
(chmod directory #o700)
(let* ((name (string-append directory "/inferior"))
(socket (socket AF_UNIX SOCK_STREAM 0))
(major (nix-server-major-version store))
(minor (nix-server-minor-version store))
(major (store-connection-major-version store))
(minor (store-connection-minor-version store))
(proto (logior major minor)))
(bind socket AF_UNIX name)
(listen socket 1024)
@ -451,7 +451,7 @@ (define (inferior-eval-with-store inferior store code)
inferior)
(match (accept socket)
((client . address)
(proxy client (nix-server-socket store))))
(proxy client (store-connection-socket store))))
(close-port socket)
(read-inferior-response inferior)))))

6
guix/ssh.scm
View file

@ -180,7 +180,7 @@ (define* (connect-to-remote-daemon session
(socket-name
"/var/guix/daemon-socket/socket"))
"Connect to the remote build daemon listening on SOCKET-NAME over SESSION,
an SSH session. Return a <nix-server> object."
an SSH session. Return a <store-connection> object."
(open-connection #:port (remote-daemon-channel session socket-name)))
@ -288,7 +288,7 @@ (define* (send-files local files remote
Return the list of store items actually sent."
;; Compute the subset of FILES missing on SESSION and send them.
(let* ((files (if recursive? (requisites local files) files))
(session (channel-get-session (nix-server-socket remote)))
(session (channel-get-session (store-connection-socket remote)))
(missing (inferior-remote-eval
`(begin
(use-modules (guix)
@ -345,7 +345,7 @@ (define* (send-files local files remote
(define (remote-store-session remote)
"Return the SSH channel beneath REMOTE, a remote store as returned by
'connect-to-remote-daemon', or #f."
(channel-get-session (nix-server-socket remote)))
(channel-get-session (store-connection-socket remote)))
(define (remote-store-host remote)
"Return the name of the host REMOTE is connected to, where REMOTE is a

151
guix/store.scm
View file

@ -20,6 +20,7 @@
(define-module (guix store)
#:use-module (guix utils)
#:use-module (guix config)
#:use-module (guix deprecation)
#:use-module (guix memoization)
#:use-module (guix serialization)
#:use-module (guix monads)
@ -51,11 +52,19 @@ (define-module (guix store)
%gc-roots-directory
%default-substitute-urls
store-connection?
store-connection-version
store-connection-major-version
store-connection-minor-version
store-connection-socket
;; Deprecated forms for 'store-connection'.
nix-server?
nix-server-version
nix-server-major-version
nix-server-minor-version
nix-server-socket
current-store-protocol-version ;for internal use
mcached
@ -335,31 +344,39 @@ (define-syntax read-arg
;; remote-store.cc
(define-record-type* <nix-server> nix-server %make-nix-server
nix-server?
(socket nix-server-socket)
(major nix-server-major-version)
(minor nix-server-minor-version)
(define-record-type* <store-connection> store-connection %make-store-connection
store-connection?
(socket store-connection-socket)
(major store-connection-major-version)
(minor store-connection-minor-version)
(buffer nix-server-output-port) ;output port
(flush nix-server-flush-output) ;thunk
(buffer store-connection-output-port) ;output port
(flush store-connection-flush-output) ;thunk
;; Caches. We keep them per-connection, because store paths build
;; during the session are temporary GC roots kept for the duration of
;; the session.
(ats-cache nix-server-add-to-store-cache)
(atts-cache nix-server-add-text-to-store-cache)
(object-cache nix-server-object-cache
(ats-cache store-connection-add-to-store-cache)
(atts-cache store-connection-add-text-to-store-cache)
(object-cache store-connection-object-cache
(default vlist-null))) ;vhash
(set-record-type-printer! <nix-server>
(set-record-type-printer! <store-connection>
(lambda (obj port)
(format port "#<build-daemon ~a.~a ~a>"
(nix-server-major-version obj)
(nix-server-minor-version obj)
(format port "#<store-connection ~a.~a ~a>"
(store-connection-major-version obj)
(store-connection-minor-version obj)
(number->string (object-address obj)
16))))
(define-deprecated/alias nix-server? store-connection?)
(define-deprecated/alias nix-server-major-version
store-connection-major-version)
(define-deprecated/alias nix-server-minor-version
store-connection-minor-version)
(define-deprecated/alias nix-server-socket store-connection-socket)
(define-condition-type &nix-error &error
nix-error?)
@ -515,13 +532,13 @@ (define* (open-connection #:optional (uri (%daemon-socket-uri))
(write-int cpu-affinity port)))
(when (>= (protocol-minor v) 11)
(write-int (if reserve-space? 1 0) port))
(let ((conn (%make-nix-server port
(protocol-major v)
(protocol-minor v)
output flush
(make-hash-table 100)
(make-hash-table 100)
vlist-null)))
(let ((conn (%make-store-connection port
(protocol-major v)
(protocol-minor v)
output flush
(make-hash-table 100)
(make-hash-table 100)
vlist-null)))
(let loop ((done? (process-stderr conn)))
(or done? (process-stderr conn)))
conn)))))))))
@ -536,27 +553,29 @@ (define* (port->connection port
connection. Use with care."
(let-values (((output flush)
(buffering-output-port port (make-bytevector 8192))))
(%make-nix-server port
(protocol-major version)
(protocol-minor version)
output flush
(make-hash-table 100)
(make-hash-table 100)
vlist-null)))
(%make-store-connection port
(protocol-major version)
(protocol-minor version)
output flush
(make-hash-table 100)
(make-hash-table 100)
vlist-null)))
(define (nix-server-version store)
(define (store-connection-version store)
"Return the protocol version of STORE as an integer."
(protocol-version (nix-server-major-version store)
(nix-server-minor-version store)))
(protocol-version (store-connection-major-version store)
(store-connection-minor-version store)))
(define-deprecated/alias nix-server-version store-connection-version)
(define (write-buffered-output server)
"Flush SERVER's output port."
(force-output (nix-server-output-port server))
((nix-server-flush-output server)))
(force-output (store-connection-output-port server))
((store-connection-flush-output server)))
(define (close-connection server)
"Close the connection to SERVER."
(close (nix-server-socket server)))
(close (store-connection-socket server)))
(define-syntax-rule (with-store store exp ...)
"Bind STORE to an open connection to the store and evaluate EXPs;
@ -566,7 +585,7 @@ (define-syntax-rule (with-store store exp ...)
(const #f)
(lambda ()
(parameterize ((current-store-protocol-version
(nix-server-version store)))
(store-connection-version store)))
exp) ...)
(lambda ()
(false-if-exception (close-connection store))))))
@ -622,7 +641,7 @@ (define* (process-stderr server #:optional user-port)
conservatively consider it to be Latin-1, thereby avoiding possible
encoding conversion errors."
(define p
(nix-server-socket server))
(store-connection-socket server))
;; magic cookies from worker-protocol.hh
(define %stderr-next #x6f6c6d67) ; "olmg", build log
@ -666,7 +685,7 @@ (define %stderr-error #x63787470) ; "cxtp", error reporting
(let ((error (read-maybe-utf8-string p))
;; Currently the daemon fails to send a status code for early
;; errors like DB schema version mismatches, so check for EOF.
(status (if (and (>= (nix-server-minor-version server) 8)
(status (if (and (>= (store-connection-minor-version server) 8)
(not (eof-object? (lookahead-u8 p))))
(read-int p)
1)))
@ -734,7 +753,7 @@ (define* (set-build-options server
;; Must be called after `open-connection'.
(define socket
(nix-server-socket server))
(store-connection-socket server))
(let-syntax ((send (syntax-rules ()
((_ (type option) ...)
@ -744,22 +763,22 @@ (define socket
(write-int (operation-id set-options) socket)
(send (boolean keep-failed?) (boolean keep-going?)
(boolean fallback?) (integer verbosity))
(when (< (nix-server-minor-version server) #x61)
(when (< (store-connection-minor-version server) #x61)
(let ((max-build-jobs (or max-build-jobs 1))
(max-silent-time (or max-silent-time 3600)))
(send (integer max-build-jobs) (integer max-silent-time))))
(when (>= (nix-server-minor-version server) 2)
(when (>= (store-connection-minor-version server) 2)
(send (boolean use-build-hook?)))
(when (>= (nix-server-minor-version server) 4)
(when (>= (store-connection-minor-version server) 4)
(send (integer build-verbosity) (integer log-type)
(boolean print-build-trace)))
(when (and (>= (nix-server-minor-version server) 6)
(< (nix-server-minor-version server) #x61))
(when (and (>= (store-connection-minor-version server) 6)
(< (store-connection-minor-version server) #x61))
(let ((build-cores (or build-cores (current-processor-count))))
(send (integer build-cores))))
(when (>= (nix-server-minor-version server) 10)
(when (>= (store-connection-minor-version server) 10)
(send (boolean use-substitutes?)))
(when (>= (nix-server-minor-version server) 12)
(when (>= (store-connection-minor-version server) 12)
(let ((pairs `(;; This option is honored by 'guix substitute' et al.
,@(if print-build-trace
`(("print-extended-build-trace"
@ -884,8 +903,8 @@ (define-syntax operation
((_ (name (type arg) ...) docstring return ...)
(lambda (server arg ...)
docstring
(let* ((s (nix-server-socket server))
(buffered (nix-server-output-port server)))
(let* ((s (store-connection-socket server))
(buffered (store-connection-output-port server)))
(record-operation 'name)
(write-int (operation-id name) buffered)
(write-arg type arg buffered)
@ -944,7 +963,7 @@ (define add-data-to-store
REFERENCES is the list of store paths referred to by the resulting store
path."
(let* ((args `(,bytes ,name ,references))
(cache (nix-server-add-text-to-store-cache server)))
(cache (store-connection-add-text-to-store-cache server)))
(or (hash-ref cache args)
(let ((path (add-text-to-store server name bytes references)))
(hash-set! cache args path)
@ -973,7 +992,7 @@ (define add-to-store
;; We don't use the 'operation' macro so we can pass SELECT? to
;; 'write-file'.
(record-operation 'add-to-store)
(let ((port (nix-server-socket server)))
(let ((port (store-connection-socket server)))
(write-int (operation-id add-to-store) port)
(write-string basename port)
(write-int 1 port) ;obsolete, must be #t
@ -999,7 +1018,7 @@ (define add-to-store
;; Note: We don't stat FILE-NAME at each call, and thus we assume that
;; the file remains unchanged for the lifetime of SERVER.
(let* ((args `(,file-name ,basename ,recursive? ,hash-algo ,select?))
(cache (nix-server-add-to-store-cache server)))
(cache (store-connection-add-to-store-cache server)))
(or (hash-ref cache args)
(let ((path (add-to-store server basename recursive?
hash-algo file-name
@ -1078,14 +1097,14 @@ (define (directory-entries directory)
((_ 'directory (names . _) ...) names)))
(define cache
(nix-server-add-to-store-cache server))
(store-connection-add-to-store-cache server))
(or (hash-ref cache tree)
(begin
;; We don't use the 'operation' macro so we can use 'write-file-tree'
;; instead of 'write-file'.
(record-operation 'add-to-store/tree)
(let ((port (nix-server-socket server)))
(let ((port (store-connection-socket server)))
(write-int (operation-id add-to-store) port)
(write-string basename port)
(write-int 1 port) ;obsolete, must be #t
@ -1117,8 +1136,8 @@ (define build-things
that are not derivations can only be substituted and not built locally.
Return #t on success."
(parameterize ((current-store-protocol-version
(nix-server-version store)))
(if (>= (nix-server-minor-version store) 15)
(store-connection-version store)))
(if (>= (store-connection-minor-version store) 15)
(build store things mode)
(if (= mode (build-mode normal))
(build/old store things)
@ -1334,9 +1353,9 @@ (define built-in-builders
;; derivation builders in general, which appeared in Guix > 0.11.0.
;; Return the empty list if it doesn't. Note that this RPC does not
;; exist in 'nix-daemon'.
(if (or (> (nix-server-major-version store) #x100)
(and (= (nix-server-major-version store) #x100)
(>= (nix-server-minor-version store) #x60)))
(if (or (> (store-connection-major-version store) #x100)
(and (= (store-connection-major-version store) #x100)
(>= (store-connection-minor-version store) #x60)))
(builders store)
'()))))
@ -1366,14 +1385,14 @@ (define (run-gc server action to-delete min-freed)
#f. MIN-FREED is the minimum amount of disk space to be freed, in
bytes, before the GC can stop. Return the list of store paths delete,
and the number of bytes freed."
(let ((s (nix-server-socket server)))
(let ((s (store-connection-socket server)))
(write-int (operation-id collect-garbage) s)
(write-int action s)
(write-store-path-list to-delete s)
(write-arg boolean #f s) ; ignore-liveness?
(write-long-long min-freed s)
(write-int 0 s) ; obsolete
(when (>= (nix-server-minor-version server) 5)
(when (>= (store-connection-minor-version server) 5)
;; Obsolete `use-atime' and `max-atime' parameters.
(write-int 0 s)
(write-int 0 s))
@ -1389,8 +1408,8 @@ (define (run-gc server action to-delete min-freed)
;; To be on the safe side, completely invalidate both caches.
;; Otherwise we could end up returning store paths that are no longer
;; valid.
(hash-clear! (nix-server-add-to-store-cache server))
(hash-clear! (nix-server-add-text-to-store-cache server)))
(hash-clear! (store-connection-add-to-store-cache server))
(hash-clear! (store-connection-add-text-to-store-cache server)))
(values paths freed))))
@ -1425,7 +1444,7 @@ (define (import-paths server port)
"Import the set of store paths read from PORT into SERVER's store. An error
is raised if the set of paths read from PORT is not signed (as per
'export-path #:sign? #t'.) Return the list of store paths imported."
(let ((s (nix-server-socket server)))
(let ((s (store-connection-socket server)))
(write-int (operation-id import-paths) s)
(let loop ((done? (process-stderr server port)))
(or done? (loop (process-stderr server port))))
@ -1433,7 +1452,7 @@ (define (import-paths server port)
(define* (export-path server path port #:key (sign? #t))
"Export PATH to PORT. When SIGN? is true, sign it."
(let ((s (nix-server-socket server)))
(let ((s (store-connection-socket server)))
(write-int (operation-id export-path) s)
(write-store-path path s)
(write-arg boolean sign? s)
@ -1502,10 +1521,10 @@ (define* (cache-object-mapping object keys result)
and RESULT is typically its derivation."
(lambda (store)
(values result
(nix-server
(store-connection
(inherit store)
(object-cache (vhash-consq object (cons result keys)
(nix-server-object-cache store)))))))
(store-connection-object-cache store)))))))
(define record-cache-lookup!
(if (profiled? "object-cache")
@ -1540,7 +1559,7 @@ (define* (lookup-cached-object object #:optional (keys '()))
compared with 'equal?'. Return #f on failure and the cached result
otherwise."
(lambda (store)
(let* ((cache (nix-server-object-cache store))
(let* ((cache (store-connection-object-cache store))
;; Escape as soon as we find the result. This avoids traversing
;; the whole vlist chain and significantly reduces the number of