(defun %read-sequence (stream seq start end partial-fill)
(declare (type simple-stream stream)
(type sequence seq)
- (type sb-int:index start)
- (type (or null sb-int:index) end)
+ (type sb-int:index start end)
(type boolean partial-fill))
(with-stream-class (simple-stream stream)
(%check stream :input)
(when (any-stream-instance-flags stream :eof)
(return-from %read-sequence 0))
+ (when (and (not (any-stream-instance-flags stream :dual :string))
+ (sc-dirty-p stream))
+ (flush-buffer stream t))
(etypecase seq
(string
(funcall-stm-handler j-read-chars (sm melded-stream stream) seq nil
- start (or end (length seq))
+ start end
(if partial-fill :bnb t)))
((or (simple-array (unsigned-byte 8) (*))
(simple-array (signed-byte 8) (*)))
+ (when (any-stream-instance-flags stream :string)
+ (error "Can't read into byte sequence from a string stream."))
;; "read-vector" equivalent, but blocking if partial-fill is NIL
- (error "implement me")
- )
+ ;; FIXME: this could be implemented faster via buffer-copy
+ (loop with encap = (sm melded-stream stream)
+ for index from start below end
+ for byte = (read-byte-internal encap nil nil t)
+ then (read-byte-internal encap nil nil partial-fill)
+ while byte
+ do (setf (bref seq index) byte)
+ finally (return index)))
;; extend to work on other sequences: repeated read-byte
)))
-
(defun %write-sequence (stream seq start end)
(declare (type simple-stream stream)
(type sequence seq)
- (type sb-int:index start)
- (type (or null sb-int:index) end))
+ (type sb-int:index start end))
(with-stream-class (simple-stream stream)
(%check stream :output)
(etypecase seq
(string
(funcall-stm-handler-2 j-write-chars seq (sm melded-stream stream)
- start (or end (length seq))))
+ start end))
((or (simple-array (unsigned-byte 8) (*))
(simple-array (signed-byte 8) (*)))
;; "write-vector" equivalent
(etypecase stream
(single-channel-simple-stream
(with-stream-class (single-channel-simple-stream stream)
- (loop with max-ptr = (sm buf-len stream)
- with real-end = (or end (length seq))
- for src-pos = start then (+ src-pos count)
- for src-rest = (- real-end src-pos)
+ (loop with max-ptr fixnum = (sm buf-len stream)
+ for src-pos fixnum = start then (+ src-pos count)
+ for src-rest fixnum = (- end src-pos)
while (> src-rest 0) ; FIXME: this is non-ANSI
- for ptr = (let ((ptr (sm buffpos stream)))
- (if (>= ptr max-ptr)
- (flush-buffer stream t)
- ptr))
- for buf-rest = (- max-ptr ptr)
- for count = (min buf-rest src-rest)
+ for ptr fixnum = (let ((ptr (sm buffpos stream)))
+ (if (>= ptr max-ptr)
+ (flush-buffer stream t)
+ ptr))
+ for buf-rest fixnum = (- max-ptr ptr)
+ for count fixnum = (min buf-rest src-rest)
do (progn (setf (sm mode stream) 1)
(setf (sm buffpos stream) (+ ptr count))
(buffer-copy seq src-pos (sm buffer stream) ptr count)))))
(dual-channel-simple-stream
- (error "Implement me"))
+ (with-stream-class (dual-channel-simple-stream stream)
+ (loop with max-ptr fixnum = (sm max-out-pos stream)
+ for src-pos fixnum = start then (+ src-pos count)
+ for src-rest fixnum = (- end src-pos)
+ while (> src-rest 0) ; FIXME: this is non-ANSI
+ for ptr fixnum = (let ((ptr (sm outpos stream)))
+ (if (>= ptr max-ptr)
+ (flush-out-buffer stream t)
+ ptr))
+ for buf-rest fixnum = (- max-ptr ptr)
+ for count fixnum = (min buf-rest src-rest)
+ do (progn (setf (sm outpos stream) (+ ptr count))
+ (buffer-copy seq src-pos (sm out-buffer stream) ptr count)))))
(string-simple-stream
(error 'simple-type-error
:datum stream
:expected-type 'stream
- :format-control "Can't write-byte on string streams."
+ :format-control "Can't write a byte sequence to a string stream."
:format-arguments '())))
)
;; extend to work on other sequences: repeated write-byte
- )))
+ ))
+ seq)
(defun read-vector (vector stream &key (start 0) end (endian-swap :byte-8))
(etypecase stream
(simple-stream
(with-stream-class (simple-stream stream)
- (if (stringp vector)
- (let* ((start (or start 0))
- (end (or end (length vector)))
- (encap (sm melded-stream stream))
- (char (funcall-stm-handler j-read-char encap nil nil t)))
- (when char
- (setf (schar vector start) char)
- (incf start)
- (+ start (funcall-stm-handler j-read-chars encap vector nil
- start end nil))))
- (do* ((j-read-byte (if (any-stream-instance-flags stream :string)
- (error "Can't READ-BYTE on string streams.")
- #'read-byte-internal))
- (encap (sm melded-stream stream))
- (index (or start 0) (1+ index))
- (end (or end (* (length vector) (vector-elt-width vector))))
- (endian-swap (endian-swap-value vector endian-swap))
- (byte (funcall j-read-byte encap nil nil t)
- (funcall j-read-byte encap nil nil nil)))
- ((or (null byte) (>= index end)) index)
- (setf (bref vector (logxor index endian-swap)) byte)))))
+ (cond ((stringp vector)
+ (let* ((start (or start 0))
+ (end (or end (length vector)))
+ (encap (sm melded-stream stream))
+ (char (funcall-stm-handler j-read-char encap nil nil t)))
+ (when char
+ (setf (schar vector start) char)
+ (incf start)
+ (+ start (funcall-stm-handler j-read-chars encap vector nil
+ start end nil)))))
+ ((any-stream-instance-flags stream :string)
+ (error "Can't READ-BYTE on string streams."))
+ (t
+ (do* ((encap (sm melded-stream stream))
+ (index (or start 0) (1+ index))
+ (end (or end (* (length vector) (vector-elt-width vector))))
+ (endian-swap (endian-swap-value vector endian-swap))
+ (byte (read-byte-internal encap nil nil t)
+ (read-byte-internal encap nil nil nil)))
+ ((or (null byte) (>= index end)) index)
+ (setf (bref vector (logxor index endian-swap)) byte))))))
((or ansi-stream fundamental-stream)
(unless (typep vector '(or string
(simple-array (signed-byte 8) (*))
projects / sbcl.git / blobdiff