;;======================================================================
;; Copyright 2017, Matthew Welland.
;;
;; This file is part of Megatest.
;;
;; Megatest is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;;
;; Megatest is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with Megatest. If not, see <http://www.gnu.org/licenses/>.
;;======================================================================
(declare (unit dbmod))
(declare (uses commonmod))
;; (include "debugprint.scm")
(module dbmod
*
(import scheme
chicken
ports
s11n
z3
data-structures
extras
(prefix base64 base64:)
message-digest
regex
commonmod ;; debugprint
)
(import (prefix sqlite3 sqlite3:)
posix typed-records srfi-18
srfi-69)
(define (db:run-id->dbname run-id)
(cond
((number? run-id)(conc run-id ".db"))
((not run-id) "main.db")
(else run-id)))
;; NOTE: Can remove the regex and base64 encoding for zmq
(define (db:obj->string obj #!key (transport 'http))
(case transport
;; ((fs) obj)
((http fs)
(string-substitute
(regexp "=") "_"
(base64:base64-encode
(z3:encode-buffer
(with-output-to-string
(lambda ()(serialize obj))))) ;; BB: serialize - this is what causes problems between different builds of megatest communicating. serialize is sensitive to binary image of mtest.
#t))
((zmq nmsg)(with-output-to-string (lambda ()(serialize obj))))
(else obj))) ;; rpc
(define (db:string->obj msg #!key (transport 'http))
(case transport
;; ((fs) msg)
((http fs)
(if (string? msg)
(with-input-from-string
(z3:decode-buffer
(base64:base64-decode
(string-substitute
(regexp "_") "=" msg #t)))
(lambda ()(deserialize)))
(begin
(debug:print-error 0 *default-log-port* "reception failed. Received \"" msg "\" but cannot translate it.")
(print-call-chain (current-error-port))
msg))) ;; crude reply for when things go awry
((zmq nmsg)(with-input-from-string msg (lambda ()(deserialize))))
(else msg))) ;; rpc
;;======================================================================
;; hash of hashs
;;======================================================================
(define (db:hoh-set! dat key1 key2 val)
(let* ((subhash (hash-table-ref/default dat key1 #f)))
(if subhash
(hash-table-set! subhash key2 val)
(begin
(hash-table-set! dat key1 (make-hash-table))
(db:hoh-set! dat key1 key2 val)))))
(define (db:hoh-get dat key1 key2)
(let* ((subhash (hash-table-ref/default dat key1 #f)))
(and subhash
(hash-table-ref/default subhash key2 #f))))
)