[cmdline] Allow "sleep" command to be interrupted
Allow Ctrl-C to be used to abort a "sleep" command. Signed-off-by: Michael Brown <mcb30@ipxe.org>
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@ -31,6 +31,9 @@ FILE_LICENCE ( GPL2_OR_LATER );
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#include <ipxe/command.h>
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#include <ipxe/parseopt.h>
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#include <ipxe/settings.h>
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#include <ipxe/console.h>
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#include <ipxe/keys.h>
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#include <ipxe/process.h>
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#include <ipxe/nap.h>
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#include <ipxe/shell.h>
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@ -564,8 +567,12 @@ static int sleep_exec ( int argc, char **argv ) {
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/* Delay for specified number of seconds */
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start = currticks();
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delay = ( seconds * TICKS_PER_SEC );
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while ( ( currticks() - start ) <= delay )
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while ( ( currticks() - start ) <= delay ) {
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step();
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if ( iskey() && ( getchar() == CTRL_C ) )
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return -ECANCELED;
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cpu_nap();
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}
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return 0;
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}
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