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Diffstat (limited to 'libfmt/fmtfdflush.c')
-rw-r--r-- | libfmt/fmtfdflush.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/libfmt/fmtfdflush.c b/libfmt/fmtfdflush.c new file mode 100644 index 0000000..9209efc --- /dev/null +++ b/libfmt/fmtfdflush.c @@ -0,0 +1,34 @@ +/* + * The authors of this software are Rob Pike and Ken Thompson. + * Copyright (c) 2002 by Lucent Technologies. + * 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 MAKE + * ANY REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY + * OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE. + */ +#include <stdarg.h> +#include <unistd.h> +#include "plan9.h" +#include "fmt.h" +#include "fmtdef.h" + +/* + * generic routine for flushing a formatting buffer + * to a file descriptor + */ +int +__fmtFdFlush(Fmt *f) +{ + int n; + + n = (char*)f->to - (char*)f->start; + if(n && write((uintptr_t)f->farg, f->start, n) != n) + return 0; + f->to = f->start; + return 1; +} |