;;; -*-  Lisp -*-

(defpackage #:sb-bsd-sockets-system (:use #:asdf #:cl))
(in-package #:sb-bsd-sockets-system)

;;; constants.lisp requires special treatment

(defclass constants-file (cl-source-file) ())

(defmethod perform ((op compile-op) (component constants-file))
  ;; we want to generate all our temporary files in the fasl directory
  ;; because that's where we have write permission.  Can't use /tmp;
  ;; it's insecure (these files will later be owned by root)
  (let* ((output-file (car (output-files op component)))
	 (filename (component-pathname component))
	 (real-output-file
	  (if (typep output-file 'logical-pathname)
	      (translate-logical-pathname output-file)
	      (pathname output-file)))
	 (tmp-c-source (merge-pathnames #p"foo.c" real-output-file))
	 (tmp-a-dot-out (merge-pathnames #p"a.out" real-output-file))
	 (tmp-constants (merge-pathnames #p"constants.lisp-temp"
					 real-output-file)))
    (princ (list filename output-file real-output-file
		 tmp-c-source tmp-a-dot-out tmp-constants))
    (terpri)
    (funcall (intern "C-CONSTANTS-EXTRACT"
		     (find-package "SB-BSD-SOCKETS-SYSTEM"))
	     filename tmp-c-source :sb-bsd-sockets-internal)
    (and
     (= (run-shell-command "gcc -o ~S ~S" (namestring tmp-a-dot-out)
	 (namestring tmp-c-source)) 0)
     (= (run-shell-command "~A >~A"
			   (namestring tmp-a-dot-out)
			   (namestring tmp-constants)) 0)
     (compile-file tmp-constants :output-file output-file))))


;;; we also have a shared library with some .o files in it

(defclass unix-dso (module) ())
(defun unix-name (pathname)
  (namestring 
   (typecase pathname
     (logical-pathname (translate-logical-pathname pathname))
     (t pathname))))

(defmethod asdf::input-files ((operation compile-op) (dso unix-dso))
  (mapcar #'component-pathname (module-components dso)))

(defmethod output-files ((operation compile-op) (dso unix-dso))
  (let ((dir (component-pathname dso)))
    (list
     (make-pathname :type "so"
		    :name (car (last (pathname-directory dir)))
		    :directory (butlast (pathname-directory dir))
		    :defaults dir))))


(defmethod perform :after ((operation compile-op) (dso unix-dso))
  (let ((dso-name (unix-name (car (output-files operation dso)))))
    (unless (zerop
	     (run-shell-command
	      "gcc -shared -o ~S ~{~S ~}"
	      dso-name
	      (mapcar #'unix-name
		      (mapcan (lambda (c)
				(output-files operation c))
			      (module-components dso)))))
      (error 'operation-error :operation operation :component dso))))

;;; if this goes into the standard asdf, it could reasonably be extended
;;; to allow cflags to be set somehow
(defmethod output-files ((op compile-op) (c c-source-file))
  (list 
   (make-pathname :type "o" :defaults
		  (component-pathname c))))
(defmethod perform ((op compile-op) (c c-source-file))
  (unless
      (= 0 (run-shell-command "gcc -fPIC -o ~S -c ~S"
			      (unix-name (car (output-files op c)))
			      (unix-name (component-pathname c))))
    (error 'operation-error :operation op :component c)))

(defmethod perform ((operation load-op) (c c-source-file))
  t)
  
(defmethod perform ((o load-op) (c unix-dso))
  (let ((co (make-instance 'compile-op)))
    (let ((filename (car (output-files co c))))
      #+cmu (ext:load-foreign filename)
      #+sbcl (sb-alien:load-1-foreign filename))))

(defsystem sb-bsd-sockets
    :version "0.58"
    :components ((:file "defpackage" :depends-on ("rt"))
		 (:file "split" :depends-on ("defpackage"))
                 (:file "array-data" :depends-on ("defpackage"))
		 (:unix-dso "alien"
			    :components ((:c-source-file "undefs")
					 (:c-source-file "get-h-errno")))
		 (:file "malloc" :depends-on ("defpackage"))
		 (:file "foreign-glue" :depends-on ("defpackage" "malloc"))
		 (:constants-file "constants"
				  :pathname "constants.lisp"
				  :depends-on
				  ("def-to-lisp" "defpackage" "foreign-glue"))
		 (:file "sockets"
			:depends-on ("constants" "array-data"))
		 
		 (:file "sockopt" :depends-on ("sockets"))
		 (:file "inet" :depends-on ("sockets" "split"  "constants" ))
		 (:file "local" :depends-on ("sockets" "split" "constants" ))
		 (:file "name-service" :depends-on ("sockets" "constants" "alien"))
		 (:file "misc" :depends-on ("sockets" "constants"))

		 (:file "rt")
		 (:file "def-to-lisp")
		 (:file "tests" :depends-on ("inet" "sockopt" "rt"))

		 (:static-file "NEWS")
		 ;; (:static-file "INSTALL")
		 (:static-file "README")
		 (:static-file "index" :pathname "index.html")
		 (:static-file "doc" :pathname "doc.lisp")
		 (:static-file "TODO")))