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cl-lttb.lisp
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cl-lttb.lisp
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;;;; cl-lttb.lisp
(in-package #:cl-lttb)
(defcenum lttb-error-code
:lttb-ok
:lttb-cannot-open-input-file
:lttb-cannot-open-output-file)
(define-condition unable-to-load-fst (error)
((fst-pathname :initarg :fst-pathname :reader fst-pathname)))
(define-foreign-library clttoolbox (t (:default "libclttoolbox")))
(use-foreign-library clttoolbox)
(defcfun ("lttb_fst_processor_new" fst-processor-new) :pointer)
(defcfun ("lttb_fst_processor_destroy" fst-processor-destroy) :void (fst_processor :pointer))
(defcfun ("lttb_fst_processor_load" fst-processor-load*) :int (fst_processor :pointer) (input_pathname :pointer))
(defun fst-processor-load (fst-processor input-pathname)
(declare (pathname input-pathname))
(unless (eq (with-foreign-string (input-pathname-c (namestring input-pathname))
(fst-processor-load* fst-processor input-pathname-c))
(foreign-enum-value 'lttb-error-code :lttb-ok))
(error 'unable-to-load-fst :fst-pathname input-pathname)))
(defcfun ("lttb_fst_processor_is_valid" fst-processor-is-valid*) :int (fst_processor :pointer))
(defun fst-processor-valid-p (fst-processor)
(not (= 0 (fst-processor-is-valid* fst-processor))))
(defcfun ("lttb_fst_processor_init_analysis" fst-processor-init-analysis) :void (fst_processor :pointer))
(defcfun ("lttb_fst_processor_init_generation" fst-processor-init-generation) :void (fst_processor :pointer))
(defcfun ("lttb_fst_processor_init_postgeneration" fst-processor-init-postgeneration) :void (fst_processor :pointer))
(defcfun ("lttb_fst_processor_analysis" fst-processor-analysis*)
:void
(fst_processor :pointer)
(input_pathname :pointer)
(output_pathname :pointer))
(defun fst-processor-analysis (fst-processor input-pathname output-pathname)
(let ((input-pathname-c (if input-pathname
(foreign-string-alloc (namestring input-pathname))
(null-pointer)))
(output-pathname-c (if output-pathname
(foreign-string-alloc (namestring output-pathname))
(null-pointer))))
(fst-processor-analysis* fst-processor input-pathname-c output-pathname-c)
(unless (null-pointer-p input-pathname-c)
(foreign-string-free input-pathname-c))
(unless (null-pointer-p output-pathname-c)
(foreign-string-free output-pathname-c))))
(defcfun ("lttb_fst_processor_analysis_in_mem" fst-processor-analysis-in-mem*)
:int
(fst_processor :pointer)
(input_buf :pointer)
(output_buf :pointer)
(output_buf_size :pointer))
(defun fst-processor-analysis-in-mem (fst-processor input-string)
(with-foreign-string (input-string* input-string)
(let ((output-buffer-pointer (cffi:foreign-alloc :pointer))
(size-pointer (cffi:foreign-alloc :pointer)))
(cl-lttb::fst-processor-analysis-in-mem* fst-processor
input-string*
output-buffer-pointer
size-pointer)
(let* ((size (cffi:mem-ref size-pointer :int))
(output-buffer-pointer* (cffi:mem-ref output-buffer-pointer :pointer))
(output-buffer (cffi:foreign-string-to-lisp output-buffer-pointer* :count size)))
(cffi:foreign-free output-buffer-pointer)
(cffi:foreign-free size-pointer)
output-buffer))))
(defcenum generation-mode
:gm_clean
:gm_unknown
:gm_all
:gm_tagged
:gm_tagged_nm
:gm_carefulcase)
(defcfun ("lttb_fst_processor_generate" fst-processor-generate*)
:void
(fst_processor :pointer)
(input_pathname :pointer)
(output_pathname :pointer)
(mode :int))
(defun fst-processor-generate (fst-processor input-pathname output-pathname mode)
(let ((input-pathname-c (if input-pathname
(foreign-string-alloc (namestring input-pathname))
(null-pointer)))
(output-pathname-c (if output-pathname
(foreign-string-alloc (namestring output-pathname))
(null-pointer)))
(mode-c (foreign-enum-value 'generation-mode mode)))
(fst-processor-generate* fst-processor input-pathname-c output-pathname-c mode-c)
(unless (null-pointer-p input-pathname-c)
(foreign-string-free input-pathname-c))
(unless (null-pointer-p output-pathname-c)
(foreign-string-free output-pathname-c))))
(defcfun ("lttb_fst_processor_generate_in_mem" fst-processor-generate-in-mem*)
:int
(fst_processor :pointer)
(input_buf :pointer)
(output_buf :pointer)
(output_buf_size :pointer)
(mode :int))
(defun fst-processor-generate-in-mem (fst-processor input-string mode)
(let ((mode-c (foreign-enum-value 'generation-mode mode)))
(with-foreign-string (input-string* input-string)
(let ((output-buffer-pointer (cffi:foreign-alloc :pointer))
(size-pointer (cffi:foreign-alloc :pointer)))
(cl-lttb::fst-processor-generate-in-mem* fst-processor
input-string*
output-buffer-pointer
size-pointer
mode-c)
(let* ((size (cffi:mem-ref size-pointer :int))
(output-buffer-pointer* (cffi:mem-ref output-buffer-pointer :pointer))
(output-buffer (cffi:foreign-string-to-lisp output-buffer-pointer* :count size)))
(cffi:foreign-free output-buffer-pointer)
(cffi:foreign-free size-pointer)
output-buffer)))))
(defcfun ("lttb_fst_processor_postgenerate" fst-processor-postgenerate*)
:void
(fst_processor :pointer)
(input_pathname :pointer)
(output_pathname :pointer))
(defun fst-processor-postgenerate (fst-processor input-pathname output-pathname)
(let ((input-pathname-c (if input-pathname
(foreign-string-alloc (namestring input-pathname))
(null-pointer)))
(output-pathname-c (if output-pathname
(foreign-string-alloc (namestring output-pathname))
(null-pointer))))
(fst-processor-postgenerate* fst-processor input-pathname-c output-pathname-c)
(unless (null-pointer-p input-pathname-c)
(foreign-string-free input-pathname-c))
(unless (null-pointer-p output-pathname-c)
(foreign-string-free output-pathname-c))))
(defcfun ("lttb_fst_processor_postgenerate_in_mem" fst-processor-postgenerate-in-mem*)
:int
(fst_processor :pointer)
(input_buf :pointer)
(output_buf :pointer)
(output_buf_size :pointer))
(defun fst-processor-postgenerate-in-mem (fst-processor input-string)
(with-foreign-string (input-string* input-string)
(let ((output-buffer-pointer (cffi:foreign-alloc :pointer))
(size-pointer (cffi:foreign-alloc :pointer)))
(cl-lttb::fst-processor-postgenerate-in-mem* fst-processor
input-string*
output-buffer-pointer
size-pointer)
(let* ((size (cffi:mem-ref size-pointer :int))
(output-buffer-pointer* (cffi:mem-ref output-buffer-pointer :pointer))
(output-buffer (cffi:foreign-string-to-lisp output-buffer-pointer* :count size)))
(cffi:foreign-free output-buffer-pointer)
(cffi:foreign-free size-pointer)
output-buffer))))
;; Macro
(defmacro with-fst-processor ((processor fst-pathname processor-type) &body body)
`(let ((,processor (fst-processor-new)))
(unwind-protect
(progn
(fst-processor-load ,processor ,fst-pathname)
(ecase ,processor-type
(:analysis (fst-processor-init-analysis ,processor))
(:generator (fst-processor-init-generation ,processor))
(:postgenerator (fst-processor-init-postgeneration ,processor)))
,@body)
(fst-processor-destroy ,processor))))
(defmacro with-fst-generator ((generator fst-pathname) &body body)
`(with-fst-processor (,generator ,fst-pathname :generator)
,@body))
(defmacro with-fst-postgenerator ((postgenerator fst-pathname) &body body)
`(with-fst-processor (,postgenerator ,fst-pathname :postgenerator)
,@body))