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#include <common.h>
/**
** User function main #2: write
**
** Prints its ID, then loops N times delaying and printing, then returns
** without calling exit(). Verifies the return byte count from each call
** to write().
**
** Invoked as: main2 x n
** where x is the ID character
** n is the iteration count
*/
USERMAIN( main ) {
int n;
int count = 30; // default iteration count
char ch = '2'; // default character to print
char buf[128];
// process the command-line arguments
switch( argc ) {
case 3: count = str2int( argv[2], 10 );
// FALL THROUGH
case 2: ch = argv[1][0];
break;
default:
sprint( buf, "main2: argc %d, args: ", argc );
cwrites( buf );
for( int i = 0; i <= argc; ++i ) {
sprint( buf, " %s", argv[argc] ? argv[argc] : "(null)" );
cwrites( buf );
}
cwrites( "\n" );
}
// announce our presence
n = swritech( ch );
if( n != 1 ) {
sprint( buf, "== %c, write #1 returned %d\n", ch, n );
cwrites( buf );
}
// iterate and print the required number of other characters
for( int i = 0; i < count; ++i ) {
DELAY(STD);
n = swritech( ch );
if( n != 1 ) {
sprint( buf, "== %c, write #2 returned %d\n", ch, n );
cwrites( buf );
}
}
// all done!
return( 0 );
}
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