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| author | David Thompson <davet@gnu.org> | 2015-06-24 20:50:34 -0400 |
|---|---|---|
| committer | David Thompson <dthompson2@worcester.edu> | 2015-07-07 18:46:44 -0400 |
| commit | b4abdeb63b4e29f89a0a8e54f7b442bb31da87c9 (patch) | |
| tree | 31b46689ab9160a91c635a4ec248c4b0334e55fc | |
| parent | b16d138a0af44740894ecd42eca4d71fd74aea1a (diff) | |
| download | guix-b4abdeb63b4e29f89a0a8e54f7b442bb31da87c9.tar guix-b4abdeb63b4e29f89a0a8e54f7b442bb31da87c9.tar.gz | |
build: syscalls: Add mkdtemp!
* guix/build/syscalls.scm (mkdtemp!): New procedure.
* tests/syscalls.scm ("mkdtemp!"): New test.
| -rw-r--r-- | guix/build/syscalls.scm | 15 | ||||
| -rw-r--r-- | tests/syscalls.scm | 9 |
2 files changed, 24 insertions, 0 deletions
diff --git a/guix/build/syscalls.scm b/guix/build/syscalls.scm index 6d3151051b..a464040e56 100644 --- a/guix/build/syscalls.scm +++ b/guix/build/syscalls.scm @@ -45,6 +45,7 @@ swapon swapoff processes + mkdtemp! IFF_UP IFF_BROADCAST @@ -265,6 +266,20 @@ user-land process." (scandir "/proc")) <)) +(define mkdtemp! + (let* ((ptr (dynamic-func "mkdtemp" (dynamic-link))) + (proc (pointer->procedure '* ptr '(*)))) + (lambda (tmpl) + "Create a new unique directory in the file system using the template +string TMPL and return its file name. TMPL must end with 'XXXXXX'." + (let ((result (proc (string->pointer tmpl))) + (err (errno))) + (when (null-pointer? result) + (throw 'system-error "mkdtemp!" "~S: ~A" + (list tmpl (strerror err)) + (list err))) + (pointer->string result))))) + ;;; ;;; Packed structures. diff --git a/tests/syscalls.scm b/tests/syscalls.scm index 706f3dff44..049ca93267 100644 --- a/tests/syscalls.scm +++ b/tests/syscalls.scm @@ -1,5 +1,6 @@ ;;; GNU Guix --- Functional package management for GNU ;;; Copyright © 2014, 2015 Ludovic Courtès <ludo@gnu.org> +;;; Copyright © 2015 David Thompson <davet@gnu.org> ;;; ;;; This file is part of GNU Guix. ;;; @@ -67,6 +68,14 @@ (lambda args (memv (system-error-errno args) (list EPERM EINVAL ENOENT))))) +(test-assert "mkdtemp!" + (let* ((tmp (or (getenv "TMPDIR") "/tmp")) + (dir (mkdtemp! (string-append tmp "/guix-test-XXXXXX")))) + (and (file-exists? dir) + (begin + (rmdir dir) + #t)))) + (test-assert "all-network-interfaces" (match (all-network-interfaces) (((? string? names) ..1) |