@@ -7,18 +7,17 @@ ;; This program is distributed WITHOUT ANY WARRANTY; without even the ;; implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ;; PURPOSE. ;;====================================================================== -(use srfi-1 data-structures posix regex-case base64 format dot-locking csv-xml z3 sql-de-lite hostinfo md5 message-digest typed-records directory-utils stack - matchable) -(require-extension regex posix) - -(require-extension (srfi 18) extras tcp rpc) - -(import (prefix sqlite3 sqlite3:)) -(import (prefix base64 base64:)) +(use srfi-1 data-structures posix regex-case (prefix base64 base64:) + format dot-locking csv-xml z3 ;; sql-de-lite + hostinfo md5 message-digest typed-records directory-utils stack + matchable regex posix (srfi 18) extras ;; tcp + (prefix nanomsg nmsg:) + (prefix sqlite3 sqlite3:) + ) (declare (unit common)) (include "common_records.scm") @@ -2290,11 +2289,51 @@ ;; no match, try again (if (null? tal) fallback-launcher (loop (car tal)(cdr tal)))))))) fallback-launcher))) + +;;====================================================================== +;; NMSG AND NEW API +;;====================================================================== + +;; nm based server +;; +(define (nm:start-server dbconn #!key (given-host-name #f)) + (let* ((srvdat (start-raw-server given-host-name: given-host-name)) + (host-name (srvdat-host srvdat)) + (soc (srvdat-soc srvdat))) + + ;; start the queue processor (save for second round of development) + ;; + ;; (thread-start! (queue-processory dbconn) "Queue processor") + ;; msg is an alist + ;; 'r host:port <== where to return the data + ;; 'p params <== data to apply the command to + ;; 'e j|s|l <== encoding of the params. default is s (sexp), if not specified is assumed to be default + ;; 'c command <== look up the function to call using this key + ;; + (let loop ((msg-in (nn-recv soc))) + (if (not (equal? msg-in "quit")) + (let* ((dat (decode msg-in)) + (host-port (alist-ref 'r dat)) ;; this is for the reverse req rep where the server is a client of the original client + (params (alist-ref 'p dat)) + (command (let ((c (alist-ref 'c dat)))(if c (string->symbol c) #f))) + (all-good (and host-port params command (hash-table-exists? *commands* command)))) + (if all-good + (let ((cmddat (make-qitem + command: command + host-port: host-port + params: params))) + (queue-push cmddat) ;; put request into the queue + (nn-send soc "queued")) ;; reply with "queued" + (print "ERROR: BAD request " dat)) + (loop (nn-recv soc))))) + (nn-close soc))) + + ;;====================================================================== ;; D A S H B O A R D U S E R V I E W S ;;====================================================================== ;; first read ~/views.config if it exists, then read $MTRAH/views.config if it exists @@ -2308,5 +2347,51 @@ ;; we load the home dir file AFTER the MTRAH file so the user can clobber settings when running the dashboard in read-only areas (if (common:file-exists? home-cfgfile) (read-config home-cfgfile view-cfgdat #t)) view-cfgdat)) +;;====================================================================== +;; H I E R A R C H I C A L H A S H T A B L E S +;;====================================================================== + +;; Every element including top element is a vector: +;; + +(define (hh:make-hh #!key (ht #f)(value #f)) + (vector (or ht (make-hash-table)) value)) + +;; used internally +(define-inline (hh:set-ht! hh ht) (vector-set! hh 0 ht)) +(define-inline (hh:get-ht hh) (vector-ref hh 0)) +(define-inline (hh:set-value! hh value) (vector-set! hh 1 value)) +(define-inline (hh:get-value hh value) (vector-ref hh 1)) + +;; given a hierarchial hash and some keys look up the value ... +;; +(define (hh:get hh . keys) + (if (null? keys) + (vector-ref hh 1) ;; we have reached the end of the line, return the value sought + (let ((sub-ht (hh:get-ht hh))) + (if sub-ht ;; yes, there is more hierarchy + (let ((sub-hh (hash-table-ref/default sub-ht (car keys) #f))) + (if sub-hh + (apply hh:get sub-hh (cdr keys)) + #f)) + #f)))) + +;; given a hierarchial hash, a value and some keys, add needed hierarcy and insert the value +;; +(define (hh:set! hh value . keys) + (if (null? keys) + (hh:set-value! hh value) ;; we have reached the end of the line, store the value + (let ((sub-ht (hh:get-ht hh))) + (if sub-ht ;; yes, there is more hierarchy + (let ((sub-hh (hash-table-ref/default sub-ht (car keys) #f))) + (if (not sub-hh) ;; we'll need to add the next level of hierarchy + (let ((new-sub-hh (hh:make-hh))) + (hash-table-set! sub-ht (car keys) new-sub-hh) + (apply hh:set! new-sub-hh value (cdr keys))) + (apply hh:set! sub-hh value (cdr keys)))) ;; call the sub-hierhash with remaining keys + (begin + (hh:set-ht! hh (make-hash-table)) + (apply hh:set! hh value keys)))))) +