sends and receives. If the standard echo service is not available to you, you can write your own echo server in APL. The main program ECHO does only initial setup, leaving the processing on the call-back function. [1] [~] V ECHO ADDR;S;PS;PR n ST~NDARD ECHO SE~CICE (7). CEiq.N'/PNOGRAM -~SWA~E~ o PS~PB~-0 'TF'[J C'F0/~.4'( 'CAFIION'( 'Echo/rig ',ADDR))( 'C00RD' 'PIXEL' ) 'TE'[J S'SIZE'120 280 'TF,ST'[]CC'~ITION'('CAFIION' 'Stop')('SIZ~' 30 S0)('POSN' i0 55) 'TF.LT/'[]CS'EVENT' 30 'ECBAII' 0 'TF.EX'[ICC'~ITION'('CAFIION' 'Exit')( 'SIZE' 30 80)('POSN' 10 145) 'TF.EX'[~TS( 'EVENI' 30 'ECBAH' I)( 'DEFAUET' 1) 'TF.Ti'U~C'~XT'( 'RglYIS' 60 65)('TE/fr' 'Packets sent:') 'TF.T2'[~C'TEXT'('PO/M/S' 50 195)('TE~' ' 0 ' ) 'TF.T3'[~C'TE~'( 'POi/~/S' 80 65)( 'TEd' 'Packets received:' ) 'TF.T4'[]WC'TE~'('FO/Y/S' 80 195)('TEXT' '0') 'ECBF'[3CC'FORM'( 'CAFIION' 'ECHO_CB' )( 'C~X)RD' 'PIXEL')( 'VISIBLE' O) 'ECHF'[J4S'EVEW/' 5 'ECBAH' 3 SAY 'N(EIIFZ'('ECHF'[~4G'HAND~E')S 1 'TF.TIMER'[]4C'~IMER'('!NIEH~AL'1000)(IEVE~ ' 140 'ECH~H' 2) [3D~ '.' S&Y 'CEOSE'S END V [14] [5] [fi] [7] [8] [9] [I0] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [5] [6] [7] [8] [9] [i0] [ii] [12] [13] [14] [153 V ~0 ~ EXIT BUTTON ~ I : D E X '.' ~0 n TIMER EVENT: SENDING PACKET L 2 : S A Y 'SENDTO' S 0 'N' 2 7 A D
/lp/association-for-computing-machinery/an-interview-with-jeffrey-zweiben-of-health-economics-group-inc-as-MB2Kmow3DN