diff options
Diffstat (limited to 'src/lib9/fmt/fmtnull.c')
| -rw-r--r-- | src/lib9/fmt/fmtnull.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/lib9/fmt/fmtnull.c b/src/lib9/fmt/fmtnull.c new file mode 100644 index 000000000..b8caacbf7 --- /dev/null +++ b/src/lib9/fmt/fmtnull.c @@ -0,0 +1,48 @@ +/* + * The authors of this software are Rob Pike and Ken Thompson, + * with contributions from Mike Burrows and Sean Dorward. + * + * Copyright (c) 2002-2006 by Lucent Technologies. + * Portions Copyright (c) 2004 Google Inc. + * + * Permission to use, copy, modify, and distribute this software for any + * purpose without fee is hereby granted, provided that this entire notice + * is included in all copies of any software which is or includes a copy + * or modification of this software and in all copies of the supporting + * documentation for such software. + * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED + * WARRANTY. IN PARTICULAR, NEITHER THE AUTHORS NOR LUCENT TECHNOLOGIES + * NOR GOOGLE INC MAKE ANY REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING + * THE MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE. + */ + +#include <u.h> +#include <libc.h> +#include "fmtdef.h" + +/* + * Absorb output without using resources. + */ +static Rune nullbuf[32]; + +static int +__fmtnullflush(Fmt *f) +{ + f->to = nullbuf; + f->nfmt = 0; + return 0; +} + +int +fmtnullinit(Fmt *f) +{ + memset(f, 0, sizeof *f); + f->runes = 1; + f->start = nullbuf; + f->to = nullbuf; + f->stop = nullbuf+nelem(nullbuf); + f->flush = __fmtnullflush; + fmtlocaleinit(f, nil, nil, nil); + return 0; +} + |