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[functional-tests/block-manager] wrap the C ptr

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So we get some extra error checking.
This commit is contained in:
Joe Thornber 2018-01-25 15:48:56 +00:00
parent 12c760f05c
commit 2fd6723712
1 changed files with 22 additions and 7 deletions
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29
functional-tests/bcache/block-manager.scm
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@ -28,11 +28,20 @@
(define __ (load-shared-object "../lib/libft.so"))
(define-record-type bcache (fields ptr))
(define (wrap ptr) (make-bcache ptr))
(define (unwrap c) (bcache-ptr c))
(define bcache-simple
(foreign-procedure "bcache_simple" (string unsigned) ptr))
(let ((fn (foreign-procedure "bcache_simple" (string unsigned) ptr)))
(lambda (path mem)
(wrap (fn path mem)))))
(define bcache-destroy
(foreign-procedure "bcache_destroy" (ptr) void))
(let ((fn (foreign-procedure "bcache_destroy" (ptr) void)))
(lambda (c)
(fn (unwrap c)))))
(define-syntax with-bcache
(syntax-rules ()
@ -44,10 +53,14 @@
(lambda () (bcache-destroy name)))))))
(define get-nr-blocks
(foreign-procedure "get_nr_blocks" (ptr) unsigned-64))
(let ((fn (foreign-procedure "get_nr_blocks" (ptr) unsigned-64)))
(lambda (c)
(fn (unwrap c)))))
(define get-nr-locked
(foreign-procedure "get_nr_locked" (ptr) unsigned-64))
(let ((fn (foreign-procedure "get_nr_locked" (ptr) unsigned-64)))
(lambda (c)
(fn (unwrap c)))))
(define-enumeration get-flag-element
(zero dirty barrier) get-flags)
@ -84,7 +97,7 @@
(define (get-block cache index flags)
(define getb (foreign-procedure "get_block" (ptr unsigned-64 unsigned) (* Block)))
(let ((b (getb cache index (build-flags flags))))
(let ((b (getb (unwrap cache) index (build-flags flags))))
(if (ftype-pointer-null? b)
(fail (fmt #f "unable to get block " index))
b)))
@ -95,12 +108,14 @@
(define (flush-cache cache)
(define flush (foreign-procedure "flush_cache" (ptr) int))
(let ((r (flush cache)))
(let ((r (flush (unwrap cache))))
(when (< 0 r)
(fail "flush_cache failed"))))
(define prefetch-block
(foreign-procedure "prefetch_block" (ptr unsigned-64) void))
(let ((fn (foreign-procedure "prefetch_block" (ptr unsigned-64) void)))
(lambda (c b)
(fn (unwrap c) b))))
(define-syntax with-block
(syntax-rules ()