From f77863a09eebf65299e734d27f1c5b96e9742f52 Mon Sep 17 00:00:00 2001 From: Ludovic Courtès Date: Mon, 25 Apr 2016 15:41:59 +0200 Subject: syscalls: Second argument of packed-struct read is now optional. * guix/build/syscalls.scm (define-c-struct)[read]: OFFSET defaults to 0. (unfold-interface-list): Remove second argument to 'read-ifaddrs'. (terminal-window-size): Remove second argument to 'read-winsize'. --- guix/build/syscalls.scm | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/guix/build/syscalls.scm b/guix/build/syscalls.scm index 45555060f8..7c32e25971 100644 --- a/guix/build/syscalls.scm +++ b/guix/build/syscalls.scm @@ -199,7 +199,7 @@ (define-syntax define-c-struct (begin (define (write! bv offset fields ...) (write-types bv offset (types ...) (fields ...))) - (define (read bv offset) + (define* (read bv #:optional (offset 0)) (read-types wrap-fields bv offset (types ...) ())))))) @@ -858,8 +858,7 @@ (define (unfold-interface-list ptr) (result '())) (if (null-pointer? ptr) (reverse result) - (match (read-ifaddrs (pointer->bytevector ptr %sizeof-ifaddrs) - 0) + (match (read-ifaddrs (pointer->bytevector ptr %sizeof-ifaddrs)) ((ifaddr . ptr) (loop ptr (cons ifaddr result))))))) @@ -921,8 +920,7 @@ (define* (terminal-window-size #:optional (port (current-output-port))) (ret (%ioctl (fileno port) TIOCGWINSZ size)) (err (errno))) (if (zero? ret) - (read-winsize (pointer->bytevector size (sizeof winsize-struct)) - 0) + (read-winsize (pointer->bytevector size (sizeof winsize-struct))) (throw 'system-error "terminal-window-size" "~A" (list (strerror err)) (list err))))) -- cgit v1.2.3