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storage-file.lisp
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storage-file.lisp
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;;;; storage-file.lisp
(in-package #:fdbq)
(defvar *buffer-size* (/ (expt 1024 2) 2)
"Bytes per job.")
(defclass spec-file (spec)
((path :type pathname :accessor spec-path :initarg :path)))
(defmethod defspec (name (type (eql :file)) fields &key path)
"Register file DB with NAME, list of FIELDS and file PATH."
(let ((spec (make-instance 'spec-file :path (merge-pathnames path))))
(defspec-read-fields spec fields)
(setf (gethash name *dbs*) spec)))
(defmethod gen-select ((spec spec-file) field-list where print jobs)
"Generate selection procedure for FIELD-LIST from DB with WHERE filter."
`(lambda () (declare ,*optimize*)
,(cond
((and print (= 1 jobs))
(gen-do-lines spec 'line
`((when ,(or (gen-where where 'line spec 'buffer 'offset) t)
,(gen-print-selection field-list 'buffer 'offset)))
:buffer-var 'buffer :offset-var 'offset))
(print
(alexandria:with-gensyms (reduce-print)
`(flet ((,reduce-print (vec1 vec2)
(declare ,*optimize*
(type (vector (simple-array simple-base-string)) vec1 vec2))
,(gen-print-select-results 'vec2 (length field-list))
vec1))
(declare (inline ,reduce-print))
,(gen-do-lines spec 'line
`((when ,(or (gen-where where 'line spec 'buffer 'offset) t)
,(gen-list-selection field-list 'buffer 'result 'offset)))
:buffer-var 'buffer :offset-var 'offset
:reduce-fn reduce-print :jobs jobs
:result-var 'result
:result-initform '(make-array 0 :fill-pointer t :adjustable t)
:result-type `(vector (simple-array simple-base-string
(,(length field-list))))))))
(t (gen-do-lines spec 'line
`((when ,(or (gen-where where 'line spec 'buffer 'offset) t)
,(gen-list-selection field-list 'buffer 'result 'offset)))
:buffer-var 'buffer :offset-var 'offset
:reduce-fn (if print 'reduce-print 'append-vec)
:jobs jobs :result-var 'result
:result-initform '(make-array 0 :fill-pointer t :adjustable t)
:result-type `(vector (simple-array simple-base-string
(,(length field-list)))))))))
(defmethod gen-cnt ((spec spec-file) where jobs)
"Generate count procedure over DB with WHERE filter over file."
`(lambda () (declare ,*optimize*)
,(gen-do-lines spec 'line
`((when ,(or (gen-where where 'line spec 'buffer 'offset) t)
(incf result)))
:buffer-var 'buffer :offset-var 'offset
:reduce-fn '+ :jobs jobs
:result-var 'result :result-initform 0 :result-type 'fixnum)))
#-ccl
(defmethod gen-do-lines ((spec spec-file) line-var body
&key (result-var (gensym)) result-type result-initform
(jobs 1) reduce-fn
buffer-var offset-var)
"File db iteration. BUFFER-VAR and OFFSET-VAR get bound
to raw byte buffer and current line offset within it respectively."
(let* ((line-size (1+ (spec-size spec))) ;add 1 for newline
(buffer-size (if (< line-size *buffer-size*)
(* line-size (floor *buffer-size* line-size))
line-size))
(threading? (< 1 jobs)))
(alexandria:with-gensyms (file-lock buffer-array line-array
job-id job-count portion-id ins take-count)
`(let ((,buffer-array (make-array ,jobs :element-type '(simple-array ascii:ub-char
(,buffer-size))
:initial-contents
(list ,@(loop repeat jobs
collect `(make-array ,buffer-size
:element-type 'ascii:ub-char)))))
(,line-array (make-array ,jobs :element-type '(simple-base-string ,(1- line-size))
:initial-contents
(list ,@(loop repeat jobs
collect `(make-array ,(1- line-size)
:element-type 'base-char)))))
(,job-count 0)
(,file-lock ,(when threading?
(bt:make-lock "gen-do-lines"))))
(declare (dynamic-extent ,line-array)
,@(if threading?
`((type fixnum ,job-count))
`((dynamic-extent ,buffer-array)
(ignore ,job-count ,file-lock))))
(with-open-file (,ins ,(spec-path spec) :direction :input
:element-type 'ascii:ub-char)
(flet ((mapper (,job-id)
(declare ,*optimize*
(type fixnum ,job-id))
(let ((,line-var (aref ,line-array ,job-id))
(,result-var ,result-initform)
(,buffer-var (aref ,buffer-array ,job-id))
(,take-count 0)
(,portion-id 0))
(declare ,(if result-type
`(type ,result-type ,result-var)
`(ignorable ,result-var))
(type (simple-base-string ,(1- line-size)) ,line-var)
(ignorable ,line-var)
(type (simple-array ascii:ub-char (,buffer-size)) ,buffer-var)
(type fixnum ,take-count)
,(if threading?
`(type fixnum ,portion-id)
`(ignore ,portion-id)))
,(if threading?
`(bt:with-lock-held (,file-lock)
(setf ,take-count (read-sequence ,buffer-var ,ins)
,portion-id (incf ,job-count)))
`(setf ,take-count (read-sequence ,buffer-var ,ins)))
(loop for ,offset-var fixnum from 0 below ,take-count by ,line-size
do ,@body)
,(if threading?
`(cons (cons ,portion-id ,result-var)
(when (= ,take-count ,buffer-size)
,job-id))
`(values ,result-var (= ,take-count ,buffer-size))))))
,(cond
(threading?
`(let* ((result ,result-initform)
(lparallel:*kernel* (lparallel:make-kernel ,jobs))
(chan (lparallel:make-channel)))
,(when result-type
`(declare (type ,result-type result)))
(unwind-protect
(progn
(loop for i fixnum from 0 below ,jobs
do (lparallel:submit-task chan #'mapper i))
(let ((ready-res (make-array 0 :fill-pointer 0 :adjustable t))
(next 1))
(declare (type (vector (cons fixnum ,(or result-type t))) ready-res)
(type fixnum next)
(dynamic-extent ready-res))
(loop with more? = t
while more?
do (destructuring-bind (res . job-id)
(lparallel:receive-result chan)
(if job-id
(lparallel:submit-task chan #'mapper job-id)
(setf more? nil))
(vector-push-extend res ready-res))
#1=(loop for res = (find next ready-res :key #'car)
while res
do (locally
(declare (type (cons fixnum ,(or result-type t))
res))
(setf result (,reduce-fn result (cdr res))
ready-res (delete next ready-res
:key #'car :test #'=)))
(incf next)))
(lparallel:do-fast-receives (res chan (1- ,jobs))
(vector-push-extend (car res) ready-res)
#1#)))
(lparallel:end-kernel))
result))
(reduce-fn
`(let ((result ,result-initform))
,(when result-type
`(declare (type ,result-type result)))
(loop with more? = t
while more?
do (multiple-value-bind (res more) (mapper 0)
(setf result (,reduce-fn result res)
more? more)))
result))
(t `(loop with more? = t
while more?
do (multiple-value-bind (res more) (mapper 0)
(declare (ignore res))
(setf more? more)))))))))))
#+ccl
(defmethod gen-do-lines ((spec spec-file) line-var body
&key (result-var (gensym)) result-type result-initform
(jobs 1) reduce-fn
buffer-var offset-var)
"File db iteration. BUFFER-VAR and OFFSET-VAR get bound
to raw byte buffer and current line offset within it respectively."
(let* ((line-size (1+ (spec-size spec))) ;add 1 for newline
(buffer-size (if (< line-size *buffer-size*)
(* line-size (floor *buffer-size* line-size))
line-size))
(threading? (< 1 jobs)))
(alexandria:with-gensyms (buffer-array line-array take-end job-id portion-id)
`(let ((,buffer-array (make-array ,jobs :element-type '(simple-array ascii:ub-char
(,buffer-size))
:initial-contents
(list ,@(loop repeat jobs
collect `(make-array ,buffer-size
:element-type 'ascii:ub-char)))))
(,line-array (make-array ,jobs :element-type '(simple-base-string ,(1- line-size))
:initial-contents
(list ,@(loop repeat jobs
collect `(make-array ,(1- line-size)
:element-type 'base-char))))))
(declare ,@(if threading?
`((dynamic-extent ,line-array))
`((dynamic-extent ,buffer-array ,line-array))))
(flet ((mapper (,take-end ,job-id ,portion-id)
(declare ,*optimize*
(type fixnum ,take-end ,job-id)
,(if threading?
`(type fixnum ,portion-id)
`(ignore ,portion-id)))
(let ((,line-var (aref ,line-array ,job-id))
(,result-var ,result-initform)
(,buffer-var (aref ,buffer-array ,job-id)))
(declare ,(if result-type
`(type ,result-type ,result-var)
`(ignorable ,result-var))
(type (simple-base-string ,(1- line-size)) ,line-var)
(ignorable ,line-var)
(type (simple-array ascii:ub-char (,buffer-size)) ,buffer-var))
(loop for ,offset-var fixnum from 0 below ,take-end by ,line-size
do ,@body)
,(if threading?
`(cons (cons ,portion-id ,result-var)
,job-id)
result-var))))
(with-open-file (ins ,(spec-path spec) :direction :input
:element-type 'ascii:ub-char)
,(cond
(threading?
`(let* ((result ,result-initform)
(lparallel:*kernel* (lparallel:make-kernel ,jobs))
(chan (lparallel:make-channel)))
,(when result-type
`(declare (type ,result-type result)))
(unwind-protect
(let ((portion-count 0)
(next 1)
(ready-res (make-array 0 :fill-pointer 0 :adjustable t)))
(declare (type fixnum portion-count next)
(type (vector (cons fixnum ,(or result-type t))) ready-res)
(dynamic-extent ready-res))
(loop for i fixnum from 0 below ,jobs
for bytes fixnum = (read-sequence (aref ,buffer-array i) ins)
until (zerop bytes)
do (lparallel:submit-task chan #'mapper bytes i
(incf portion-count)))
(when (= ,jobs portion-count)
(loop with more? = t
while more?
do (destructuring-bind (res . job-id)
(lparallel:receive-result chan)
(let ((bytes (read-sequence (aref ,buffer-array job-id) ins)))
(if (zerop bytes)
(setf more? nil)
(lparallel:submit-task chan #'mapper bytes job-id
(incf portion-count))))
(vector-push-extend res ready-res))
#1=(loop for res = (find next ready-res :key #'car)
while res
do (locally
(declare (type (cons fixnum ,(or result-type t))
res))
(setf result (,reduce-fn result (cdr res))
ready-res (delete next ready-res
:key #'car :test #'=)))
(incf next)))
(lparallel:do-fast-receives (res chan
(min portion-count (1- ,jobs)))
(vector-push-extend (car res) ready-res)
#1#)))
(lparallel:end-kernel))
result))
(reduce-fn
`(let ((result ,result-initform))
,(when result-type
`(declare (type ,result-type result)))
(loop for bytes fixnum = (read-sequence (aref ,buffer-array 0) ins)
until (zerop bytes)
do (setf result (,reduce-fn result (mapper bytes 0 0))))
result))
(t `(loop for bytes fixnum = (read-sequence (aref ,buffer-array 0) ins)
until (zerop bytes)
do (mapper bytes 0 0))))))))))