diff options
Diffstat (limited to 'src/fftw3/api/mkprinter-file.c')
-rw-r--r-- | src/fftw3/api/mkprinter-file.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/src/fftw3/api/mkprinter-file.c b/src/fftw3/api/mkprinter-file.c new file mode 100644 index 0000000..24476f9 --- /dev/null +++ b/src/fftw3/api/mkprinter-file.c @@ -0,0 +1,59 @@ +/* + * Copyright (c) 2003 Matteo Frigo + * Copyright (c) 2003 Massachusetts Institute of Technology + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include "api.h" +#include <stdio.h> + +#define BUFSZ 256 + +typedef struct { + printer super; + FILE *f; + char buf[BUFSZ]; + char *bufw; +} P; + +static void myflush(P *p) +{ + fwrite(p->buf, 1, p->bufw - p->buf, p->f); + p->bufw = p->buf; +} + +static void myputchr(printer *p_, char c) +{ + P *p = (P *) p_; + if (p->bufw >= p->buf + BUFSZ) + myflush(p); + *p->bufw++ = c; +} + +static void mycleanup(printer *p_) +{ + P *p = (P *) p_; + myflush(p); +} + +printer *X(mkprinter_file)(FILE *f) +{ + P *p = (P *) X(mkprinter)(sizeof(P), myputchr, mycleanup); + p->f = f; + p->bufw = p->buf; + return &p->super; +} |