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

* 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.
snapper
Ludovic Courtès 3 years ago
parent
3a0b2c6c6e
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de9fbe9cdc
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3 changed files with 95 additions and 76 deletions
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  1. 12
      guix/inferior.scm
  2. 6
      guix/ssh.scm
  3. 153
      guix/store.scm

12
guix/inferior.scm
View File

@ -26,9 +26,9 @@
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 @@ thus be the code of a one-argument procedure that accepts a store."
(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 @@ thus be the code of a one-argument procedure that accepts a store."
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 @@ right away."
(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 @@ REMOTE, a remote store. When RECURSIVE? is true, send the closure of FILES.
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 @@ Return the list of store items actually sent."
(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

153
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 @@
%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 @@
;; 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 @@ for this connection will be pinned. Return a server object."
(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 @@ already taken place on PORT and that we're just continuing on this established
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)))
(define (nix-server-version store)
(%make-store-connection port
(protocol-major version)
(protocol-minor version)
output flush
(make-hash-table 100)
(make-hash-table 100)
vlist-null)))
(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 @@ automatically close the store when the dynamic extent of EXP is left."
(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 @@ Since the build process's output cannot be assumed to be UTF-8, we
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 @@ encoding conversion errors."
(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 @@ encoding conversion errors."
;; 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 @@ encoding conversion errors."
(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 @@ bytevector) as its internal buffer, and a thunk to flush this output port."
((_ (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 @@ string). Raise an error if no such path exists."
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 @@ path."
;; 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 @@ where FILE is the entry's absolute file name and STAT is the result of
;; 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 @@ an arbitrary directory layout in the store without creating a derivation."
((_ '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 @@ outputs, and return when the worker is done building them. Elements of 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 @@ supported by STORE."
;; 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 @@ the list of store paths to delete. IGNORE-LIVENESS? should always be
#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 @@ and the number of bytes 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 @@ collected, and the number of bytes freed."
"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 @@ is raised if the set of paths read from PORT is not signed (as per
(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 @@ OBJECT is typically a high-level object such as a <package> or an <origin>,
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 @@ and KEYS. KEYS is a list of additional keys to match against, and which are
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

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