mirror of
https://github.com/golang/go
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174b8c95f5
This change depends on CL 57170052. LGTM=rsc R=rsc, bradfitz CC=golang-codereviews https://golang.org/cl/60840049
83 lines
2.1 KiB
C
83 lines
2.1 KiB
C
/*
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http://code.google.com/p/inferno-os/source/browse/libbio/bprint.c
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Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
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Revisions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com). All rights reserved.
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Revisions Copyright © 2010 Google Inc. All rights reserved.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include <u.h>
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#include <libc.h>
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#include <bio.h>
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int
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Bprint(Biobuf *bp, char *fmt, ...)
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{
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int n;
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va_list arg;
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va_start(arg, fmt);
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n = Bvprint(bp, fmt, arg);
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va_end(arg);
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return n;
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}
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static int
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bflush(Fmt *f)
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{
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Biobuf *bp;
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if(f->stop == nil)
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return 0;
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bp = f->farg;
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bp->ocount = (int)((char*)f->to - (char*)f->stop);
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if(Bflush(bp) < 0) {
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f->stop = nil;
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f->to = nil;
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return 0;
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}
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f->to = (char*)f->stop + bp->ocount;
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return 1;
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}
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int
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Bvprint(Biobuf *bp, char *fmt, va_list arg)
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{
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int n;
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Fmt f;
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memset(&f, 0, sizeof f);
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fmtlocaleinit(&f, nil, nil, nil);
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f.stop = bp->ebuf;
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f.to = (char*)f.stop + bp->ocount;
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f.flush = bflush;
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f.farg = bp;
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n = fmtvprint(&f, fmt, arg);
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if(f.stop != nil)
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bp->ocount = (int)((char*)f.to - (char*)f.stop);
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return n;
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}
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