| \ ***************************************************************************** |
| \ * Copyright (c) 2004, 2008 IBM Corporation |
| \ * All rights reserved. |
| \ * This program and the accompanying materials |
| \ * are made available under the terms of the BSD License |
| \ * which accompanies this distribution, and is available at |
| \ * http://www.opensource.org/licenses/bsd-license.php |
| \ * |
| \ * Contributors: |
| \ * IBM Corporation - initial implementation |
| \ ****************************************************************************/ |
| |
| |
| : input ( dev-str dev-len -- ) |
| open-dev ?dup IF |
| \ Close old stdin: |
| s" stdin" get-chosen IF |
| decode-int nip nip ?dup IF close-dev THEN |
| THEN |
| \ Now set the new stdin: |
| encode-int s" stdin" set-chosen |
| THEN |
| ; |
| |
| : output ( dev-str dev-len -- ) |
| open-dev ?dup IF |
| \ Close old stdout: |
| s" stdout" get-chosen IF |
| decode-int nip nip ?dup IF close-dev THEN |
| THEN |
| \ Now set the new stdout: |
| encode-int s" stdout" set-chosen |
| THEN |
| ; |
| |
| : io ( dev-str dev-len -- ) |
| 2dup input output |
| ; |
| |
| |
| 1 BUFFER: (term-io-char-buf) |
| |
| : term-io-key ( -- char ) |
| s" stdin" get-chosen IF |
| decode-int nip nip dup 0= IF 0 EXIT THEN |
| >r BEGIN |
| (term-io-char-buf) 1 s" read" r@ $call-method |
| 0 > |
| UNTIL |
| (term-io-char-buf) c@ |
| r> drop |
| THEN |
| ; |
| |
| ' term-io-key to key |
| |
| \ this word will check what the current chosen input device is: |
| \ - if it is a serial device, it will use serial-key? to check for available input |
| \ - if it is a keyboard, it will check if the "key-available?" method is implemented (i.e. for usb-keyboard) and use that |
| \ - if it's an hv console, use hvterm-key? |
| \ otherwise it will always return false |
| : term-io-key? ( -- true|false ) |
| s" stdin" get-chosen IF |
| decode-int nip nip dup 0= IF drop 0 EXIT THEN \ return false and exit if no stdin set |
| >r \ store ihandle on return stack |
| s" device_type" r@ ihandle>phandle ( propstr len phandle ) |
| get-property ( true | data dlen false ) |
| IF |
| \ device_type not found, return false and exit |
| false |
| ELSE |
| 1 - \ remove 1 from length to ignore null-termination char |
| \ device_type found, check wether it is serial or keyboard |
| 2dup s" serial" str= IF |
| 2drop serial-key? r> drop EXIT |
| THEN \ call serial-key, cleanup return-stack, exit |
| 2dup s" keyboard" str= IF |
| 2drop ( ) |
| \ keyboard found, check for key-available? method, execute it or return false |
| s" key-available?" r@ ihandle>phandle find-method IF |
| drop s" key-available?" r@ $call-method |
| ELSE |
| false |
| THEN |
| r> drop EXIT \ cleanup return-stack, exit |
| THEN |
| 2drop r> drop false EXIT \ unknown device_type cleanup return-stack, return false |
| THEN |
| ELSE |
| \ stdin not set, return false |
| false |
| THEN |
| ; |
| |
| ' term-io-key? to key? |